Pre-crushing device for lithium battery positive electrode material after roasting

Abstract

The utility model discloses a pre-crushing device for a lithium battery positive electrode material after roasting, which comprises a processing bin, a bowl separating bin, a bowl stacking bin, a conveying bin and a conveying table for conveying saggers, and the bowl separating bin, the processing bin, the conveying bin and the bowl stacking bin are sequentially arranged on the conveying table along the conveying direction of the conveying table; the treatment bin is provided with a crushing mechanism and a lifting mechanism, the lifting mechanism can drive the saggar to ascend and descend, and a crushing assembly of the crushing mechanism can crush materials in the saggar. According to the pre-crushing device for the lithium battery positive electrode material after roasting, disclosed by the utility model, the treatment bin, the lifting mechanism and the crushing mechanism are arranged between the sagger separating bin and the sagger stacking bin and are matched, so that the material in the sagger can be crushed, the internal structure of the material in the sagger is loosened, and the sagger is convenient to pour; and the phenomenon that the saggar is stuck in the subsequent process can be reduced, the working efficiency is improved, the labor intensity of workers is relieved, and the product quality can be improved.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery production equipment technology, and more specifically, to a pre-crushing device for lithium battery cathode materials after calcination. Background Technology

[0002] The calcination and crushing process aims to optimize the crystal structure, particle morphology, size, and electrochemical performance of the cathode material, ensuring that the material has high energy density, high cycle efficiency, and high safety performance, thereby improving the overall performance of the lithium battery.

[0003] In existing lithium battery cathode material processing devices, when there is a large amount of material in the sagger, the material may get stuck and difficult to detach during the turning and unloading process. This can cause the automatic production line to stop and affect the continuous production rhythm. The stuck material may also cause the material to re-sinter along with the sagger, affecting product quality.

[0004] Therefore, reducing the occurrence of material jamming in the sagger and improving production efficiency have become technical problems that urgently need to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a pre-crushing device for lithium battery cathode materials after calcination, so as to reduce the occurrence of material jamming in the crucible and improve production efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A pre-crushing device for lithium battery cathode material after calcination includes a processing chamber, a sorting chamber, a stacking chamber, a conveying chamber, and a conveying platform for conveying the saggers. The sorting chamber, the processing chamber, the conveying chamber, and the stacking chamber are sequentially arranged on the conveying platform along the conveying direction of the conveying platform.

[0008] The processing chamber is equipped with a crushing mechanism and a lifting mechanism. The lifting mechanism can drive the sagger to rise and fall, and the crushing component of the crushing mechanism can crush the material inside the sagger.

[0009] Optionally, in the above-mentioned pre-crushing device for lithium battery cathode materials after calcination, the crushing mechanism includes a driving component and the crushing component, wherein the driving component can drive the crushing component to lift, move and rotate.

[0010] Optionally, in the above-mentioned pre-crushing device for lithium battery cathode materials after calcination, the driving assembly includes a cylinder, a driving motor, and a fixed plate. The driving motor is disposed at the end of the piston rod of the cylinder, the driving motor is connected to the fixed plate, and the crushing assembly is detachably connected to the fixed plate; or,

[0011] The drive assembly includes a cylinder, a drive motor, a fixed plate, and a fixed base. The cylinder is connected to the fixed base, and the piston rod of the cylinder is connected to the fixed plate. The crushing assembly is detachably connected to the fixed plate. The drive motor is connected to the fixed base to drive the fixed base to rotate; or...

[0012] The drive assembly includes a drive motor, an inner tube, an outer tube, and a fixing plate. The outer tube is provided with a spiral groove, and the inner tube is provided with a sliding member that slides in cooperation with the spiral groove. The first end of the inner tube is connected to the drive motor, and the second end is connected to the fixing plate. The crushing assembly is detachably connected to the fixing plate.

[0013] Optionally, in the above-mentioned pre-crushing device for lithium battery cathode material after calcination, the bottom of the fixed plate is provided with multiple connecting blocks, the crushing component includes multiple crushing parts, each crushing part corresponds to one of the connecting blocks, each crushing part is connected to the corresponding connecting block through a threaded rod, and nuts are provided at both ends of the threaded rod, the nuts abut against the connecting block.

[0014] Optionally, in the above-mentioned pre-crushing device for lithium battery cathode material after calcination, the lifting mechanism includes a lifting assembly and a fork-feeding assembly. The fork-feeding assembly includes a fork-feeding part and a driving part. The driving part can drive the fork-feeding part to extend and retract to lift the sagger. The driving part is connected to the lifting platform of the lifting assembly.

[0015] Optionally, in the above-mentioned pre-crushing device for lithium battery cathode material after calcination, the lifting assembly includes the lifting platform and a lifting part connected to the lifting platform, wherein the lifting part can drive the lifting platform to move up and down.

[0016] Optionally, in the above-mentioned pre-crushing device for lithium battery cathode materials after calcination, the lifting unit includes a lead screw, a slider, and lifting seats disposed at both ends of the processing chamber. Each lifting seat is provided with a sliding groove, the lead screw is rotatably disposed in the sliding groove, the slider is threadedly engaged with the lead screw, and both ends of the lifting platform are respectively connected to the slider; or,

[0017] The lifting unit includes a lead screw, a slider, a threaded sleeve, a connecting rod, and lifting seats disposed at both ends of the processing chamber. The lead screw is rotatably engaged with each of the lifting seats, and the axial direction of the lead screw is perpendicular to the axial direction of the lifting seat. The threaded sleeve is threadedly engaged with the lead screw. One end of the connecting rod is hinged to the threaded sleeve, and the other end is hinged to the lifting platform. The lifting platform is slidably engaged with the lifting seat through the slider.

[0018] Optionally, in the above-mentioned pre-crushing device for lithium battery cathode material after calcination, a heat sink is provided on the drive unit, a protective plate is provided on the heat sink, and the protective plate is located near the conveying component of the processing chamber.

[0019] The fork entry part is located at the bottom of the protective plate.

[0020] Optionally, in the above-mentioned pre-crushing device for lithium battery cathode materials after calcination, at least one of the sorting bin, the processing bin, the conveying bin, and the stacking bin is provided with an observation port; and / or,

[0021] At least one of the bowl-dividing chamber, the processing chamber, the conveying chamber, and the stacking chamber is provided with an inspection door.

[0022] Optionally, in the above-mentioned pre-crushing device for lithium battery cathode material after calcination, a fixed support is provided at the bottom of the conveyor platform, and the conveyor platform and the fixed support are detachably connected.

[0023] As can be seen from the above scheme, the pre-crushing device for lithium battery cathode materials disclosed in this utility model, by setting a processing chamber between the dividing chamber and the stacking chamber, and with the lifting mechanism and crushing mechanism working together, can crush the material in the sagger, making the internal structure of the material in the sagger loose, facilitating the turning of the sagger, reducing the phenomenon of material jamming in the sagger in subsequent processes, improving work efficiency, reducing the labor intensity of workers, reducing the occurrence of material re-sintering with the sagger due to material jamming, and improving product quality. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the pre-crushing device for lithium battery cathode material after calcination, as disclosed in an embodiment of this utility model.

[0026] Figure 2 This is a schematic diagram of the structure of the crushing mechanism disclosed in the embodiment of this utility model. Figure 1 ;

[0027] Figure 3 This is a schematic diagram of the structure of the crushing mechanism disclosed in the embodiment of this utility model. Figure 2 ;

[0028] Figure 4 This is a schematic diagram of the internal structure of the processing chamber disclosed in an embodiment of this utility model.

[0029] Among them, 1 is the processing chamber, 2 is the dividing chamber, 3 is the stacking chamber, 4 is the conveying chamber, 5 is the conveying platform, 6 is the fixed support, 7 is the crushing mechanism, 8 is the lifting mechanism, 9 is the observation port, and 10 is the maintenance door.

[0030] 71 is the crushing assembly, 711 is the crushing component, 72 is the drive assembly, 721 is the drive motor, 722 is the connecting block, 723 is the fixing plate, 724 is the threaded rod, and 725 is the fixing seat.

[0031] 81 is the lifting assembly, 811 is the lifting platform, 812 is the lifting part, 8121 is the lifting seat, 82 is the fork entry assembly, 821 is the fork entry part, 822 is the drive part, 823 is the heat sink, and 824 is the protection board.

[0032] 100 represents a saggar. Detailed Implementation

[0033] The core of this utility model lies in disclosing a pre-crushing device for lithium battery cathode materials after calcination, so as to reduce the occurrence of material jamming in the crucible and improve production efficiency.

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] like Figure 1 As shown, this utility model embodiment discloses a pre-crushing device for lithium battery cathode materials after calcination, including a processing chamber 1, a sorting chamber 2, a stacking chamber 3, a conveying chamber 4, and a conveying platform 5 for conveying the saggers 100. Along the conveying direction of the conveying platform 5, the sorting chamber 2, processing chamber 1, conveying chamber 4, and stacking chamber 3 are sequentially arranged on the conveying platform 5, and any adjacent ones are connected. Figure 4 As shown, the processing chamber 1 is equipped with a crushing mechanism 7 and a lifting mechanism 8. The lifting mechanism 8 is located below the crushing mechanism 7. The lifting mechanism 8 can drive the sagger 100 to rise and fall. The crushing component 71 of the crushing mechanism 7 can crush and process the material in the sagger 100.

[0036] The pre-crushing device for lithium battery cathode materials after sintering, as disclosed in this embodiment, operates as follows: The saggers, under the operation of the conveyor 5, sequentially pass through the sorting bin 2, processing bin 1, conveyor bin 4, and stacking bin 3. When the sagger 100 loaded with material reaches the processing bin 1, the lifting mechanism 8 drives the sagger 100 upwards. The crushing component 71 of the crushing mechanism 7 crushes the material inside the sagger 100, loosening the internal structure of the material and reducing the possibility of material jamming in the sagger 100 during subsequent processes. After crushing, the lifting mechanism 8 lowers the sagger 100, which falls onto the conveyor 5 and continues to be conveyed to the stacking bin 3 to complete subsequent work. In the sorting bin 2, the material in multiple saggers 100 after sintering is processed separately to avoid mixing of materials from different bins; in the stacking bin 3, multiple saggers 100 are stacked.

[0037] The pre-crushing device for lithium battery cathode materials disclosed in this utility model embodiment, by setting a processing chamber 1 between the dividing chamber 2 and the stacking chamber 3, and cooperating with the lifting mechanism 8 and the crushing mechanism 7, can crush the material in the sagger 100, making the internal structure of the material in the sagger 100 loose, facilitating the turning of the sagger, reducing the phenomenon of material jamming in the sagger 100 in subsequent processes, improving work efficiency, reducing the labor intensity of workers, reducing the occurrence of material re-sintering with the sagger due to material jamming, and improving product quality.

[0038] Furthermore, in order to detect the transfer of the crucible 100 to the processing chamber 1, a crucible presence detection element is provided in the processing chamber 1. The crucible presence detection element can be a photoelectric sensor, a proximity sensor, an ultrasonic sensor, or a limit switch, etc. The crucible presence detection element is interlocked with the lifting mechanism 8 and the crushing mechanism 7. When the crucible presence detection element detects that the crucible 100 has arrived at the processing chamber 1, the lifting mechanism 8 and the crushing mechanism 7 are activated.

[0039] Furthermore, the crushing mechanism 7 includes a drive assembly 72 and a crushing assembly 71. The drive assembly 72 can drive the crushing assembly 71 to lift, lower, and rotate. When the sagger 100 reaches the processing chamber 1, the lifting mechanism 8 is activated, driving the sagger 100 to rise. Simultaneously, the drive assembly 72 drives the crushing assembly 71 to descend and rotate, thereby crushing the material inside the sagger 100 by compression. The lifting mechanism 8 drives the sagger 100 to rise, and the crushing assembly 71 descends and rotates. The material inside the sagger 100 is subjected to multiple forces, enabling rapid crushing while protecting the sagger 100 from crushing caused by unilateral forces.

[0040] Furthermore, such as Figures 2-4As shown, in some specific embodiments, the drive assembly 72 includes a cylinder (not shown), a drive motor 721, and a fixed plate 723. The drive motor 721 is located at the end of the piston rod of the cylinder and is connected to the fixed plate 723. The drive motor 721 can drive the fixed plate 723 to rotate. The crushing assembly 71 is detachably connected to the fixed plate 723. When the cylinder and the drive motor 721 operate simultaneously, the fixed plate 723 can be raised, lowered, and rotated, causing the crushing assembly 71 to rise, lower, and rotate. Specifically, the output shaft of the drive motor 721 can be connected to the fixed plate 723, or the drive motor 721 can be connected to the fixed plate 723 through a transmission assembly, such as a pulley structure or a gear structure. The detachable connection between the crushing assembly 71 and the fixed plate 723 can be achieved by a snap-fit ​​connection or a bolt connection, which facilitates the replacement of the crushing assembly 71. The mounting base 725 shown in the figure is used to fix the drive motor 721 to the top of the processing chamber 1. Preferably, the output shaft of the drive motor 721 is rotatably connected to the mounting base 725 by bolts.

[0041] In other specific embodiments, such as Figure 2 and Figure 3 As shown, the drive assembly 72 includes a cylinder (not shown), a drive motor 721, a fixed plate 723, and a fixed base 725. The cylinder is connected to the fixed base 725, and the piston rod of the cylinder is connected to the fixed plate 723. The crushing assembly 71 is detachably connected to the fixed plate 723. The piston rod of the cylinder extends and retracts, driving the fixed plate 723 and the crushing assembly 71 on it to rise and fall. The drive motor 721 is connected to the fixed base 725 to drive the fixed base 725 to rotate, thereby driving the fixed plate 723 and the crushing assembly 71 to rotate, realizing the rising, falling, and rotating of the crushing assembly 71. Preferably, the drive motor 721 and the fixed base 725 are disposed on the top of the processing chamber 1, and the fixed base 725 is preferably detachably connected to the processing chamber 1.

[0042] In other specific embodiments, the drive assembly 72 includes a drive motor 721, an inner tube, an outer tube, and a fixing plate 723. The outer tube has a spiral groove, and the inner tube has a sliding member that slides along the spiral groove. The first end of the inner tube is connected to the drive motor 721, and the second end is connected to the fixing plate 723. The crushing assembly 71 is detachably connected to the fixing plate 723. The drive motor 721 drives the inner tube to rotate, and the sliding member slides along the spiral groove of the outer tube, thereby realizing the lifting and rotation of the fixing plate 723. The fixing plate 723 drives the crushing assembly 71 to lift and rotate.

[0043] Furthermore, to facilitate the maintenance and replacement of the crushing component 71, such as... Figures 2-3As shown, the bottom of the fixing plate 723 is provided with multiple connecting blocks 722. The crushing assembly 71 includes multiple crushing parts 711, each corresponding to a connecting block 722. Each crushing part 711 is connected to its corresponding connecting block 722 via a threaded rod 724. Nuts are provided at both ends of the threaded rod 724, and the nuts abut against the connecting block 722. Specifically, the connecting block 722 and the fixing plate 723 can be detachably or non-detachably connected, preferably with a detachable connection, such as the connecting block 722 being connected to the fixing plate 723 by bolts, facilitating disassembly and assembly. Each crushing part 711 and connecting block 722 has mounting holes. The threaded rod 724 passes through the mounting holes of each crushing part 711 and connecting block 722 in sequence, and is fixed at both ends with nuts. This method allows for quick replacement of the crushing parts 711 by disassembling and assembling the threaded rod 724. Of course, each crushing component 711 can be connected to its corresponding connecting block 722, either detachably or non-detachably, allowing the crushing component 711 to be replaced by removing and installing the connecting block 722. The crushing component 711 can also be connected to the fixing plate 723 via a snap-fit ​​connection.

[0044] Furthermore, such as Figure 3 As shown, the crusher 711 includes a conical drill bit disposed at its end. The crusher 711 is preferably made of stainless steel, and its surface is coated with a tungsten carbide coating to ensure durability. The crushers 711 shown in the figure are arranged in a straight line. The figure is only an example. In actual use, the crushers 711 can be arranged in a ring or in an array.

[0045] Furthermore, such as Figure 4 As shown, the lifting mechanism 8 includes a lifting assembly 81 and a fork-in assembly 82. The fork-in assembly 82 includes a fork-in portion 821 and a drive portion 822. The drive portion 822 can drive the fork-in portion 821 to extend and retract to support the crucible 100. The drive portion 822 is connected to the lifting platform 811 of the lifting assembly 81. When the crucible 100 reaches the processing chamber 1, the drive portion 822 drives the fork-in portion 821 to extend, and the fork-in portion 821 contacts the bottom of the crucible 100. The lifting assembly 81 then actuates, and the lifting platform 811 rises and falls, thereby driving the fork-in assembly 821 to rise and fall, and in turn driving the crucible 100 to rise and fall. Specifically, the fork-in portion 821 includes at least two parallel fork arms to lift the crucible 100. The drive unit 822 can be a cylinder, and the fork entry part 821 is connected to the piston rod of the cylinder to achieve extension and retraction; or, the drive unit 822 can be a motor, and the motor is connected to the fork entry part 821 through a transmission assembly to achieve extension and retraction of the fork entry part 821. Specifically, the motor can be connected to the fork entry part 821 through a gear rack or a lead screw nut to achieve extension and retraction of the fork entry part 821.

[0046] Specifically, when the sagger 100 reaches the processing chamber 1, the drive unit 822 drives the forklift 821 to extend. The forklift 821 contacts the bottom of the sagger 100, the lifting assembly 81 actuates, the lifting platform 811 rises, and the sagger 100 rises. The crushing mechanism 7 actuates simultaneously, causing the crushing assembly 71 to descend and rotate, and the material inside the sagger 100 is crushed by compression. After the material inside the sagger 100 is crushed, the lifting platform 811 descends, and the sagger 100 descends. When the sagger 100 reaches the conveyor platform 5, the drive unit 822 drives the forklift 821 to retract, and the sagger 100 continues to be conveyed on the conveyor platform 5 to the conveyor chamber 4 and the stacking sagger chamber 3 to continue the subsequent processes.

[0047] Furthermore, such as Figure 4 As shown, the lifting assembly 81 includes a lifting platform 811 and a lifting part 812 connected to the lifting platform 811. The lifting part 812 can drive the lifting platform 811 to rise and fall. The lifting part 812 can be configured in several ways. Specifically, it can be a cylinder, with the lifting platform 811 connected to the piston rod of the cylinder to achieve the lifting of the lifting platform 811; alternatively, the lifting part 812 can be an electric telescopic rod; or it can employ a motor and a rack and pinion mechanism, or other solutions, as long as the lifting of the lifting platform 811 can be achieved.

[0048] Furthermore, such as Figure 4 As shown, in some specific embodiments, the lifting unit 812 includes a lead screw, a slider, and lifting seats 8121 disposed at both ends of the processing chamber 1. The lead screw and slider are not shown in the figure. Each lifting seat 8121 is provided with a sliding groove. The lead screw corresponds one-to-one with the lifting seat 8121, and each lead screw is rotatably disposed in the corresponding sliding groove. The axial direction of the lead screw is the same as the axial direction of the lifting seat 8121. The slider is threadedly engaged with the lead screw. Both ends of the lifting platform 811 are connected to the slider. The end of the lead screw is provided with a handle or connected to a motor. By rotating the lead screw, the slider moves up and down along the axial direction of the lead screw, thereby driving the lifting platform 811 to move up and down.

[0049] In some other embodiments, the lifting unit 812 includes a lead screw, a slider, a threaded sleeve, a connecting rod, and lifting seats 8121 disposed at both ends of the processing chamber 1; only the lifting seats 8121 are shown in the figure. The lead screw is rotatably engaged with each lifting seat 8121, and the axial direction of the lead screw is perpendicular to the axial direction of the lifting seat 8121. The threaded sleeve is threadedly engaged with the lead screw, one end of the connecting rod is hinged to the threaded sleeve, and the other end is hinged to the lifting platform 811. The lifting platform 811 is slidably engaged with the lifting seat 8121 via the slider. A handle or a motor is provided at the end of the lead screw exposed above the lifting seat 8121.

[0050] Specifically, the lead screw includes a left-hand threaded portion and a right-hand threaded portion; the threaded sleeve includes a left-hand threaded sleeve that mates with the left-hand threaded portion and a right-hand threaded sleeve that mates with the right-hand threaded portion; the connecting rod includes a first connecting rod hinged to the left-hand threaded sleeve and a second connecting rod hinged to the right-hand threaded sleeve. The first and second connecting rods are symmetrical along a preset plane, which is a plane perpendicular to the lead screw, and the left-hand threaded sleeve and the right-hand threaded sleeve are symmetrical along the preset plane. By rotating the lead screw, the left-hand threaded sleeve and the right-hand threaded sleeve move in directions that are closer to or further away from each other, thereby realizing the lifting of the lifting platform 811.

[0051] Furthermore, to dissipate heat from the drive unit 822, a heat sink 823 is provided on the drive unit 822. To isolate the drive unit 822, a protective plate 824 is provided on the heat sink 823. The protective plate 824 is located near the conveying assembly of the processing chamber 1. In order not to affect the extension and retraction of the fork entry part 821, the fork entry part 821 is preferably located at the bottom of the protective plate 824.

[0052] Furthermore, to facilitate observation of the working conditions within each compartment or to inspect and maintain the equipment within each compartment, at least one of the sorting compartment 2, processing compartment 1, conveying compartment 4, and stacking compartment 3 is provided with an observation port 9; and / or, at least one of the sorting compartment 2, processing compartment 1, conveying compartment 4, and stacking compartment 3 is provided with an inspection door 10. Preferably, the top of the sorting compartment 2, conveying compartment 4, and stacking compartment 3 is provided with an observation port 9, and the side of the processing compartment 1 is provided with an observation port 9. The observation port 9 is preferably a glass flap to facilitate observation of the internal operation of each compartment. The processing compartment 1, sorting compartment 2, and stacking compartment 3 are all provided with inspection doors 10, preferably located at the front of each compartment.

[0053] Furthermore, a fixed support 6 is provided at the bottom of the conveyor 5, and the conveyor 5 and the fixed support 6 are detachably connected.

[0054] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0055] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0056] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0057] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A pre-crushing device for lithium battery cathode materials after calcination, characterized in that, The system includes a processing chamber (1), a dividing chamber (2), a stacking chamber (3), a conveying chamber (4), and a conveying platform (5) for conveying saggers (100). Along the conveying direction of the conveying platform (5), the dividing chamber (2), the processing chamber (1), the conveying chamber (4), and the stacking chamber (3) are sequentially arranged on the conveying platform (5). The processing chamber (1) is equipped with a crushing mechanism (7) and a lifting mechanism (8). The lifting mechanism (8) can drive the sagger (100) to rise and fall. The crushing component (71) of the crushing mechanism (7) can crush the material in the sagger (100).

2. The pre-crushing device for lithium battery cathode material after calcination as described in claim 1, characterized in that, The crushing mechanism (7) includes a drive component (72) and the crushing component (71), wherein the drive component (72) is capable of driving the crushing component (71) to lift and rotate.

3. The pre-crushing device for lithium battery cathode material after calcination as described in claim 2, characterized in that, The drive assembly (72) includes a cylinder, a drive motor (721), and a fixed plate (723). The drive motor (721) is located at the end of the piston rod of the cylinder and is connected to the fixed plate (723). The crushing assembly (71) is detachably connected to the fixed plate (723); or, The drive assembly (72) includes a cylinder, a drive motor (721), a fixed plate (723), and a fixed base (725). The cylinder is connected to the fixed base (725), and the piston rod of the cylinder is connected to the fixed plate (723). The crushing assembly (71) is detachably connected to the fixed plate (723). The drive motor (721) is connected to the fixed base (725) to drive the fixed base (725) to rotate; or, The drive assembly (72) includes a drive motor (721), an inner tube, an outer tube, and a fixing plate (723). The outer tube is provided with a spiral groove, and the inner tube is provided with a sliding member that slides with the spiral groove. The first end of the inner tube is connected to the drive motor (721), and the second end is connected to the fixing plate (723). The crushing assembly (71) is detachably connected to the fixing plate (723).

4. The pre-crushing device for lithium battery cathode material after calcination as described in claim 3, characterized in that, The bottom of the fixing plate (723) is provided with a plurality of connecting blocks (722). The crushing component (71) includes a plurality of crushing parts (711). Each crushing part (711) corresponds to a connecting block (722). Each crushing part (711) is connected to the corresponding connecting block (722) through a threaded rod (724). Nuts are provided at both ends of the threaded rod (724). The nuts abut against the connecting block (722).

5. The pre-crushing device for lithium battery cathode material after calcination as described in claim 4, characterized in that, The lifting mechanism (8) includes a lifting assembly (81) and a fork-in assembly (82). The fork-in assembly (82) includes a fork-in part (821) and a drive part (822). The drive part (822) can drive the fork-in part (821) to extend and retract to lift the sagger (100). The drive part (822) is connected to the lifting platform (811) of the lifting assembly (81).

6. The pre-crushing device for lithium battery cathode material after calcination as described in claim 5, characterized in that, The lifting assembly (81) includes the lifting platform (811) and the lifting part (812) connected to the lifting platform (811), the lifting part (812) being able to drive the lifting platform (811) to rise and fall.

7. The pre-crushing device for lithium battery cathode material after calcination as described in claim 6, characterized in that, The lifting unit (812) includes a lead screw, a slider, and lifting seats (8121) disposed at both ends of the processing chamber (1). Each lifting seat (8121) is provided with a sliding groove. The lead screw is rotatably disposed in the sliding groove. The slider is threadedly engaged with the lead screw. Both ends of the lifting platform (811) are respectively connected to the slider; or, The lifting unit (812) includes a lead screw, a slider, a threaded sleeve, a connecting rod, and lifting seats (8121) disposed at both ends of the processing chamber (1). The lead screw is rotatably engaged with each of the lifting seats (8121), and the axial direction of the lead screw is perpendicular to the axial direction of the lifting seat (8121). The threaded sleeve is threadedly engaged with the lead screw. One end of the connecting rod is hinged to the threaded sleeve, and the other end is hinged to the lifting platform (811). The lifting platform (811) is slidably engaged with the lifting seat (8121) through the slider.

8. The pre-crushing device for lithium battery cathode material after calcination as described in claim 5, characterized in that, The drive unit (822) is provided with a heat sink (823), and the heat sink (823) is provided with a protection plate (824). The protection plate (824) is located near the transfer component of the processing chamber (1). The fork entry part (821) is located at the bottom of the protective plate (824).

9. The pre-crushing device for lithium battery cathode material after calcination as described in any one of claims 1-8, characterized in that, At least one of the bowl-dividing chamber (2), the processing chamber (1), the conveying chamber (4), and the stacking chamber (3) is provided with an observation port (9); and / or, At least one of the bowl-dividing chamber (2), the processing chamber (1), the conveying chamber (4), and the stacking chamber (3) is provided with an inspection door (10).

10. The pre-crushing device for lithium battery cathode material after calcination as described in claim 9, characterized in that, The bottom of the conveyor (5) is provided with a fixed bracket (6), and the conveyor (5) and the fixed bracket (6) are detachably connected.

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