Lithium battery negative electrode material graphite powder grinding and crushing equipment and system thereof

Abstract

The invention relates to the technical field of lithium battery negative electrode material graphite powder processing, in particular to lithium battery negative electrode material graphite powder grinding and crushing equipment and a system thereof.The lithium battery negative electrode material graphite powder grinding and crushing equipment comprises an upper cover, a tank body, two fastening mechanisms, a crushing pipe, a crushing mechanism, an upper grinding body, a double-shaft motor, a discharging pipe, an abutting ring and a lower grinding body; the fastening mechanism comprises a fastening plate, an adjusting motor, a conical sleeve, a buffer pad, an inserting rod and a first screw rod, upper semi-conical rods are arranged on the two sides of the upper cover, lower semi-conical rods are arranged on the outer side of the tank body, the first screw rod is driven by the adjusting motor, so that the first screw rod is in threaded connection with the fastening plate, the fastening plate moves towards the direction of the tank body, and the tank body is fixed to the upper cover. The conical sleeve is arranged on the outer side of the upper semi-conical rod and the outer side of the lower semi-conical rod in a sleeving mode, meanwhile, the inserting rod is inserted into the outer side of the upper grinding body, and therefore the upper cover and the upper grinding body are fixed.

Description

Technical Field

[0001] The invention relates to the technical field of graphite powder processing of lithium battery negative electrode materials, and in particular to a grinding and pulverizing device and a system thereof for graphite powder grinding of lithium battery negative electrode materials. Background Art

[0002] Graphite powder, the negative electrode material of lithium battery, is a key material used in lithium-ion batteries. Its performance directly affects the capacity, cycle life and safety of the battery. Graphite powder, the negative electrode material of lithium battery, usually has a hexagonal or rhombohedral crystal structure. These structures determine the physical and chemical properties of graphite materials and their performance in batteries. The higher the degree of graphitization, the more ordered the crystal structure of the carbon material is, and the smaller the resistance to electron migration is, thereby improving the kinetic performance of the battery. Due to the very active chemical properties of lithium metal, the processing, storage and use of lithium metal have very high environmental requirements; therefore, lithium batteries have not been used for a long time; with the development of science and technology, lithium batteries have now become the mainstream; graphite and other materials are usually used as negative electrode materials for lithium batteries; the existing graphite crusher includes a crushing tank and a motor; a rotating shaft and a crushing blade are arranged in the tank body, and the rotating shaft is adjusted by the motor to drive the crushing blade to crush the graphite raw material; but such a crusher has a poor crushing effect, a long crushing time, and it is difficult to process graphite into the required particle size.

[0003] The prior art patent CN206356088U discloses a two-stage crushing equipment for graphite lithium battery negative electrode materials, including a tank body; the interior of the tank body is divided into a crushing chamber and a storage chamber by a baffle plate, and an upper cover is provided at the top opening; a crushing device is fixedly provided on the upper cover; the crushing device consists of a crushing tank, a crushing motor, a crushing shaft, a fixed blade and a rotating blade; an upper grinding body and a lower grinding body are provided in the crushing chamber; the upper grinding body consists of an upper grinding disc and an upper protrusion; the lower grinding body consists of a grinding motor, a rotating shaft and a lower grinding disc; a discharging device is provided at the bottom of the tank body; the discharging device consists of a discharging motor, a discharging shaft, a first discharging plate and a second discharging plate; the prior art crushes the electrode material through the crushing device to ensure the crushing quality; through the setting of the upper grinding body and the lower grinding body, the lower grinding disc is driven to rotate by the grinding motor, and the upper protrusion and the lower protrusion grind and crush the crushed electrode material.

[0004] However, in the above-mentioned prior art, since the upper cover, the upper grinding body and the tank body are connected by multiple bolts, the fixing method of the bolts requires the use of special tools, and the disassembly and assembly process of the bolts is too time-consuming and laborious. Summary of the invention

[0005] The purpose of the present invention is to provide a graphite powder grinding and pulverizing device for lithium battery negative electrode materials and a system thereof, so as to solve the technical problems in the prior art that a plurality of bolts are used to connect the upper cover, the upper grinding body and the tank body, the fixing method of the bolts requires the use of special tools, and the disassembly and assembly process of the bolts is too time-consuming and laborious.

[0006] To achieve the above-mentioned purpose, the present invention provides a lithium battery negative electrode material graphite powder grinding and pulverizing equipment, including an upper cover, a tank body and two fastening mechanisms, a crushing tube is arranged in the middle of the upper cover, a crushing mechanism is arranged in the crushing tube, an upper grinding body, a dual-axis motor and a discharge pipe are arranged in sequence from top to bottom in the tank body, a discharge hole is provided in the middle of the upper grinding body, a supporting ring is arranged on the inner side of the tank body, and the upper grinding body is located on the supporting ring, a lower grinding body is arranged at one output end of the dual-axis motor, and the upper grinding body and the lower grinding body are supported by each other, the upper cover is arranged above the tank body, and the two fastening mechanisms are symmetrically arranged on both sides of the tank body and the upper cover, respectively, and the fastening mechanism includes a fastening plate and an adjusting plate. A power-saving motor, wherein the middle portion of the fastening plate has a first thread groove, a conical sleeve is provided at one end of the fastening plate, a buffer pad is provided in the conical sleeve, a plug-in rod is provided at the other end of the fastening plate, and a first screw is provided at the output end of the adjusting motor, upper semi-conical rods are provided on both sides of the upper cover, lower semi-conical rods are provided on the outer side of the tank body, and the upper semi-conical rod and the lower semi-conical rod are abutted against each other, the conical sleeve is abutted against the outer sides of the upper semi-conical rod and the lower semi-conical rod, the plug-in rod is plugged into the upper grinding body and is located on the outer side of the upper grinding body, the motor is arranged on the outer side of the tank body, and the first screw is threadedly connected to the fastening plate and is located in the first thread groove.

[0007] Among them, the fastening mechanism also includes two positioning rods and a connecting plate, the two positioning rods are respectively fixedly connected to the connecting plate and are located at both ends of the connecting plate, the two positioning rods are also respectively fixedly connected to the tank body and are located on the outside of the tank body, and the fastening plate is slidably connected to the corresponding positioning rods and is sleeved on the two positioning rods, and the first screw is arranged in the middle of the connecting plate through a bearing.

[0008] The outer side of the upper grinding body is provided with two sliding blocks, the inner side of the tank body is provided with two sliding grooves, and the sliding blocks are located in the sliding grooves.

[0009] Among them, the lithium battery negative electrode material graphite powder grinding and crushing equipment also includes a sealing cover and a feed pipe, a feed hopper is arranged above the feed pipe, the sealing cover is threadedly connected to the crushing tube and covers the crushing tube, the feed pipe is connected to the crushing tube and is inclinedly arranged on the outside of the crushing tube.

[0010] Among them, the crushing mechanism includes a crushing motor, a partition and a plurality of fixed blades, the output end of the crushing motor is provided with a rotating blade, the partition has a drop hole, the crushing motor is fixedly connected to the crushing tube and is located on the inner wall of the crushing tube, the partition is fixedly connected to the crushing tube and is located below the crushing tube, the plurality of fixed blades are respectively fixedly connected to the crushing tube and are located on the inner wall of the crushing tube, and are also located between the plurality of rotating blades.

[0011] Among them, an auxiliary grinding block is also provided at the output end of the crushing motor, and the auxiliary grinding block has a bevel. The auxiliary grinding block is fixedly connected to the crushing motor and is located at the output end of the crushing motor and below the multiple rotating blades. The auxiliary grinding block is also located directly above the upper grinding body.

[0012] The present invention also provides a lithium battery negative electrode material graphite powder grinding and crushing system, including lithium battery negative electrode material graphite powder grinding and crushing equipment, and also including multiple support legs, a collecting box and an installation frame, the multiple support legs are respectively fixedly connected to the tank body and are located below the tank body, the collecting box is slidably connected to the installation frame and is located in the installation frame and is also located below the discharge pipe, the installation frame is fixedly connected to the tank body and is located below the tank body, and is also located between the multiple support legs.

[0013] The present invention discloses a lithium battery negative electrode material graphite powder grinding and pulverizing device and a system thereof, comprising an upper cover, a tank body and two fastening mechanisms, wherein a crushing tube is arranged in the middle of the upper cover, a crushing mechanism is arranged in the crushing tube, an upper grinding body, a double-axis motor and a discharge pipe are arranged in sequence from top to bottom in the tank body, a discharge hole is arranged in the middle of the upper grinding body, a supporting ring is arranged on the inner side of the tank body, a lower grinding body is arranged at one output end of the double-axis motor, the fastening mechanism comprises a fastening plate and an adjusting motor, a first threaded groove is arranged in the middle of the fastening plate, a conical sleeve is arranged at one end of the fastening plate, a buffer pad is arranged in the conical sleeve, a plug-in rod is arranged at the other end of the fastening plate, and a first Screw, upper semi-conical rods are provided on both sides of the upper cover, and lower semi-conical rods are provided on the outer side of the tank body, the first screw is driven by the adjusting motor to make the first screw threadedly connected with the fastening plate, so that the fastening plate moves toward the direction of the tank body, and the conical sleeve is sleeved on the outer sides of the upper semi-conical rod and the lower semi-conical rod, and the plug-in rod is plugged into the outer side of the upper grinding body, so as to fix the upper cover and the upper grinding body, thereby effectively solving the technical problems that the upper cover, the upper grinding body and the tank body are connected by multiple bolts, the fixing method of the bolts requires the use of special tools, and the disassembly and assembly process of the bolts is too time-consuming and labor-intensive. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0015] Figure 1 is a side view of the first embodiment of the present invention.

[0016] Figure 2 The present invention Figure 1 Section view along line AA.

[0017] Figure 3 The present invention Figure 1 Cross-sectional view along line BB.

[0018] Figure 4 is a side view of a second embodiment of the present invention.

[0019] Figure 5 The present invention Figure 4 Sectional view along the CC line.

[0020] Figure 6 The present invention Figure 5 A partial enlarged view of point D in the middle.

[0021] Figure 7 It is a three-dimensional stereogram of the third embodiment of the present invention.

[0022] Figure 8 is a side view of a third embodiment of the present invention.

[0023] Fig. 9 The present invention Figure 8 Cross-sectional view along line EE.

[0024] Fig.10 The present invention Fig. 9 Cross-sectional view along line FF.

[0025] 101-upper cover, 102-tank body, 103-crushing tube, 104-crushing mechanism, 105-upper grinding body, 106-double-axis motor, 107-discharging tube, 108-discharging hole, 109-holding ring, 110-lower grinding body, 111-fastening plate, 112-adjusting motor, 113-first thread groove, 114-conical sleeve, 115-buffer pad, 116-plug rod, 117-first screw, 118-upper semi-conical rod, 119-lower semi-conical rod, 120-positioning rod, 121-connecting plate, 122-slider, 123-slide Groove, 201-sealing cover, 202-feeding pipe, 203-feeding hopper, 204-crushing motor, 205-partition, 206-fixed blade, 207-rotating blade, 208-dropping hole, 209-auxiliary grinding block, 210-inclined surface, 301-discharge plate, 302-conical bucket, 303-L-shaped rod, 304-fixed seat, 305-mounting cylinder, 306-rectangular rod, 307-second threaded groove, 308-rectangular groove, 309-auxiliary motor, 310-second screw, 311-support leg, 312-collection box, 313-mounting frame. DETAILED DESCRIPTION

[0026] Embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be construed as limiting the present invention.

[0027] First embodiment:

[0028] See also Figures 1 to 3 ,in Figure 1 is a side view of a first embodiment of the present invention, Figure 2 The present invention Figure 1 The cross-sectional view along the AA line. Figure 3 The present invention Figure 1 Cross-sectional view along line BB.

[0029] The present invention provides a graphite powder grinding and pulverizing device for negative electrode materials of lithium batteries, comprising an upper cover 101, a tank body 102 and two fastening mechanisms, wherein a crushing tube 103 is arranged in the middle of the upper cover 101, and a crushing mechanism 104 is arranged in the crushing tube 103, and an upper grinding body 105, a double-axis motor 106 and a discharge pipe 107 are arranged in the tank body 102 from top to bottom, and a discharge hole 108 is provided in the middle of the upper grinding body 105, and a supporting ring 109 is arranged on the inner side of the tank body 102, and the upper grinding body 105 is located on the supporting ring 109, and a lower grinding body is arranged at one output end of the double-axis motor 106, and the The upper grinding body 105 and the lower grinding body are supported against each other, the upper cover 101 is arranged above the tank body 102, and the two fastening mechanisms are symmetrically arranged on both sides of the tank body 102 and the upper cover 101. By pouring the material into the crushing tube 103, the crushing mechanism 104 fully crushes the material, and the crushed material falls to the upper grinding body 105 and falls from the discharge hole 108 to between the upper grinding body 105 and the lower grinding body. At this time, the dual-axis motor 106 is started to make the lower grinding body grind the material, and finally the ground and extended material is discharged through the discharge pipe 107.

[0030] According to this specific embodiment, the fastening mechanism includes a fastening plate 111 and an adjusting motor 112. The middle part of the fastening plate 111 has a first thread groove 113. One end of the fastening plate 111 is provided with a conical sleeve 114. A buffer pad 115 is provided in the conical sleeve 114. The other end of the fastening plate 111 is provided with a plug-in rod 116. The output end of the adjusting motor 112 is provided with a first screw 117. Upper semi-conical rods 118 are provided on both sides, and lower semi-conical rods 119 are provided on the outer side of the tank body 102, and the upper semi-conical rods 118 and the lower semi-conical rods 119 are abutted against each other, and the conical sleeve 114 abuts against the outer sides of the upper semi-conical rods 118 and the lower semi-conical rods 119, and the plug-in rod 116 is plugged with the upper grinding body 105 and is located on the outer side of the upper grinding body 105, and the motor is provided. It is placed on the outside of the tank body 102, and the first screw rod 117 is threadedly connected with the fastening plate 111 and is located in the first thread groove 113. The first screw rod 117 is driven by the adjusting motor 112 to make the first screw rod 117 threadedly connected with the fastening plate 111, so that the fastening plate 111 moves toward the direction of the tank body 102, and the conical sleeve 114 is sleeved on the outside of the upper semi-conical rod 118 and the lower semi-conical rod 119, and the plug-in rod 116 is plugged into the outside of the upper grinding body 105, so as to fix the upper cover 101 and the upper grinding body 105. In this way, the technical problem that the upper cover 101, the upper grinding body 105 and the tank body 102 are all connected by multiple bolts, and the fixing method of the bolts requires the use of special tools, and the disassembly and assembly process of the bolts is too time-consuming and laborious is effectively solved.

[0031] Among them, the fastening mechanism also includes two positioning rods 120 and a connecting plate 121, the two positioning rods 120 are respectively fixedly connected to the connecting plate 121 and are located at both ends of the connecting plate 121, the two positioning rods 120 are also respectively fixedly connected to the tank body 102 and are located on the outside of the tank body 102, and the fastening plate 111 is slidably connected to the corresponding positioning rods 120 and is sleeved on the two positioning rods 120, the first screw 117 is arranged in the middle of the connecting plate 121 through a bearing, and the positioning rods 120 and the connecting plate 121 can facilitate the improvement of the stability of the fastening plate 111 when moving.

[0032] Secondly, the outer side of the upper grinding body 105 has two sliders 122, the inner side of the tank body 102 has two slide grooves 123, and the sliders 122 are located in the slide grooves 123. The arrangement of the sliders 122 and the slide grooves 123 can facilitate more accurate placement of the upper grinding body 105 into the tank body 102, thereby facilitating the subsequent insertion of the plug-in rod 116 into the outer side of the upper grinding body 105.

[0033] When using the graphite powder grinding and pulverizing device for negative electrode materials of lithium batteries of the present embodiment, by starting the adjusting motor 112, the adjusting motor 112 drives the first screw 117 clockwise, so that the first screw 117 is threadedly connected with the fastening plate 111, and the fastening plate 111 moves in a direction away from the tank body 102 under the action of the first thread groove 113, so that the conical sleeve 114 is separated from the upper semi-conical rod 118 and the lower semi-conical rod 119, and at the same time the plug-in rod 116 moves out of the outer side of the upper grinding body 105. The upper cover 101 can be easily removed from the top of the tank body 102, and the upper grinding body 105 can also be easily removed from the tank body 102. This design can easily replace the bolts to fix the upper cover 101 and the upper grinding body 105, and then it is easy to quickly take out the upper cover 101 and the upper grinding body 105. In this way, the technical problems that the upper cover 101, the upper grinding body 105 and the tank body 102 are connected by multiple bolts, the fixing method of the bolts requires the use of special tools, and the disassembly and assembly process of the bolts is too time-consuming and labor-intensive are effectively solved.

[0034] Second embodiment:

[0035] Based on the first embodiment, please refer to Figure 4 and Figure 6 ,in Figure 4 is a side view of a second embodiment of the present invention, Figure 5 The present invention Figure 4 Cross-sectional view of the CC line, Figure 6 The present invention Figure 5 A partial enlarged view of point D in the middle.

[0036] The present invention provides a graphite powder grinding and pulverizing device for negative electrode materials of lithium batteries, which also includes a sealing cover 201 and a feed pipe 202. A feed hopper 203 is arranged above the feed pipe 202. The sealing cover 201 is threadedly connected to the crushing tube 103 and covers the crushing tube 103. The feed pipe 202 is communicated with the crushing tube 103 and is obliquely arranged on the outside of the crushing tube 103. The crushing tube 103 can be easily closed by the sealing cover 201, thereby avoiding the situation that debris generated when the material is crushed is ejected. At the same time, the feed pipe 202 can facilitate the addition of materials.

[0037] Among them, the crushing mechanism 104 includes a crushing motor 204, a partition 205 and a plurality of fixed blades 206. The output end of the crushing motor 204 is provided with a rotating blade 207. The partition 205 has a drop hole 208. The crushing motor 204 is fixedly connected to the crushing tube 103 and is located on the inner wall of the crushing tube 103. The partition 205 is fixedly connected to the crushing tube 103 and is located below the crushing tube 103. The plurality of fixed blades 206 are respectively fixedly connected to the crushing tube 103 and are located on the inner wall of the crushing tube 103, and are also located between the plurality of rotating blades 207. By starting the crushing motor 204, the crushing motor 204 drives the rotating blade 207, and the rotating blade 207 crushes the material under the action of the fixed blade 206, and then discharges it through the drop hole 208 of the partition 205.

[0038] Secondly, an auxiliary grinding block 209 is also provided at the output end of the crushing motor 204, and the auxiliary grinding block 209 has a bevel 210. The auxiliary grinding block 209 is fixedly connected to the crushing motor 204 and is located at the output end of the crushing motor 204, and is also located below the multiple rotating blades 207. The auxiliary grinding block 209 is also located directly above the upper grinding body 105. The auxiliary grinding block 209 can facilitate the grinding of the material in the upper grinding body 105, thereby improving the grinding quality of the material.

[0039] When using the graphite powder grinding and pulverizing equipment for lithium battery negative electrode materials of this embodiment, the crushing tube 103 can be easily closed by the sealing cover 201, so as to avoid the ejection of debris generated when the material is crushed. At the same time, the feeding tube 202 can be convenient for adding materials, and the crushing motor 204 is started to drive the rotating blade 207. The rotating blade 207 crushes the material under the action of the fixed blade 206, and then discharges it through the drop hole 208 of the partition 205. The auxiliary grinding block 209 can grind the material in the upper grinding body 105, so as to improve the grinding quality of the material.

[0040] Third embodiment:

[0041] The graphite powder grinding and pulverizing equipment for lithium battery negative electrode materials also includes a discharge plate 301 and a conical bucket 302. The discharge plate 301 is fixedly connected to the dual-axis motor 106 and is located at the other output end of the dual-axis motor 106. The discharge plate 301 also abuts against the conical bucket 302 and is located on the inner wall of the conical bucket 302. The conical bucket 302 is fixedly connected to the tank body 102 and is located at the inner bottom of the tank body 102, and the discharge pipe 107 is connected to the conical bucket 302.

[0042] The graphite powder grinding and pulverizing equipment for negative electrode materials of lithium batteries also includes an auxiliary mechanism, which includes an L-shaped rod 303, a fixing seat 304 and a mounting tube 305. A rectangular rod 306 is arranged below the fixing seat 304, and a second thread groove 307 is arranged in the rectangular rod 306. A rectangular groove 308 is arranged in the mounting tube 305. An auxiliary motor 309 is arranged below the mounting tube 305. A second screw 310 is arranged at the output end of the auxiliary motor 309, and the second screw 310 is located in the rectangular groove 308. The L-shaped rod 303 is rotatably connected to the fixing seat 304 and is located in the fixing seat 304, and the L-shaped rod 303 is also arranged above the upper cover 101. The rectangular rod 306 is slidably connected to the mounting tube 305 and is located in the polygonal groove. The mounting tube 305 is fixedly connected to the tank body 102 and is located on the outside of the tank body 102, and is also located between the two fastening mechanisms. The second screw 310 is threadedly connected to the rectangular rod 306 and is located in the second thread groove 307.

[0043] A bolt is provided between the L-shaped rod 303 and the upper cover 101 , and the bolt is located at the inner top of the upper cover 101 .

[0044] Based on the second embodiment, please refer to Figure 7 to Figure 10 ,in Figure 7is a three-dimensional stereogram of a third embodiment of the present invention, Figure 8 is a side view of a third embodiment of the present invention, Fig. 9 The present invention Figure 8 The cross-sectional view of the EE line, Fig.10 The present invention Fig. 9 Cross-sectional view along line FF.

[0045] The present invention provides a graphite powder grinding and pulverizing device for negative electrode materials of lithium batteries, which also includes a discharge plate 301 and a conical bucket 302. The discharge plate 301 is fixedly connected to the dual-axis motor 106 and is located at the other output end of the dual-axis motor 106. The discharge plate 301 also abuts against the conical bucket 302 and is located on the inner wall of the conical bucket 302. The conical bucket 302 is fixedly connected to the tank body 102 and is located at the inner bottom of the tank body 102. The discharge pipe 107 is connected to the conical bucket 302. The discharge plate 301 is driven by the dual-axis motor 106 to slide on the inner wall of the conical bucket 302, thereby pushing the material in the conical bucket 302, so that the material can enter the discharge pipe 107 faster and finally be discharged.

[0046] The graphite powder grinding and pulverizing equipment for negative electrode materials of lithium batteries also includes an auxiliary mechanism, which includes an L-shaped rod 303, a fixed seat 304 and a mounting tube 305. A rectangular rod 306 is arranged below the fixed seat 304, and a second thread groove 307 is provided in the rectangular rod 306. A rectangular groove 308 is provided in the mounting tube 305. An auxiliary motor 309 is arranged below the mounting tube 305. A second screw 310 is arranged at the output end of the auxiliary motor 309, and the second screw 310 is located in the rectangular groove 308. The L-shaped rod 303 is rotatably connected to the fixed seat 304 and is located in the fixed seat 304. The L-shaped rod 303 is also arranged above the upper cover 101, and the rectangular rod 306 slides in the mounting tube 305. The mounting tube 305 is fixedly connected to the tank body 102 and is located on the outside of the tank body 102 and is also located between the two fastening mechanisms. The second screw rod 310 is threadedly connected to the rectangular rod 306 and is located in the second thread groove 307. By starting the auxiliary motor 309, the auxiliary motor 309 drives the second screw rod 310, and the second screw rod 310 drives the rectangular rod 306. The rectangular rod 306 slowly moves upward under the action of the second thread groove 307, thereby driving the L-shaped rod 303 to move upward, and then the upper cover 101 is separated from the tank body 102. At this time, it is convenient to move the upper cover 101 and the crushing tube 103 out of the tank body 102, thereby saving effort.

[0047] Secondly, a bolt is provided between the L-shaped rod 303 and the upper cover 101 , and the bolt is located at the inner top of the upper cover 101 .

[0048] When using the graphite powder grinding and pulverizing equipment for lithium battery negative electrode materials of the present embodiment, the discharge plate 301 is driven by the dual-axis motor 106 to slide on the inner wall of the conical bucket 302, thereby pushing the material in the conical bucket 302, so that the material can enter the discharge pipe 107 faster and be discharged finally, and the auxiliary motor 309 is started, and the auxiliary motor 309 drives the second screw 310, and the second screw 310 drives the rectangular rod 306. The rectangular rod 306 slowly moves upward under the action of the second thread groove 307, thereby driving the L-shaped rod 303 to move upward, and then the upper cover 101 is separated from the tank body 102. At this time, it is convenient to move the upper cover 101 and the crushing tube 103 out of the tank body 102, thereby achieving a labor-saving effect.

[0049] The present invention also provides a lithium battery negative electrode material graphite powder grinding and crushing system, including lithium battery negative electrode material graphite powder grinding and crushing equipment, and also including multiple support legs 311, a collecting box 312 and an installation frame 313, the multiple support legs 311 are respectively fixedly connected to the tank body 102 and are located below the tank body 102, the collecting box 312 is slidably connected to the installation frame 313, is located in the installation frame 313, and is also located below the discharge pipe 107, the installation frame 313 is fixedly connected to the tank body 102, is located below the tank body 102, and is also located between the multiple support legs 311, the support legs 311 can be used to support the tank body 102, so that the tank body 102 is easy to operate, the collecting box 312 can be used to collect the material discharged from the discharge pipe 107, and the installation frame 313 can be used to place the collecting box 312.

[0050] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A lithium battery negative electrode material graphite powder grinding and pulverizing equipment, comprising an upper cover and a tank body, wherein a crushing tube is arranged in the middle of the upper cover, a crushing mechanism is arranged in the crushing tube, an upper grinding body, a double-axis motor and a discharge pipe are arranged in sequence from top to bottom in the tank body, the middle of the upper grinding body has a discharge hole, a supporting ring is arranged on the inner side of the tank body, and the upper grinding body is located on the supporting ring, a lower grinding body is arranged at one output end of the double-axis motor, and the upper grinding body and the lower grinding body are mutually supported, the upper cover is arranged above the tank body, and is characterized in that: It also includes two fastening mechanisms, which are symmetrically arranged on both sides of the tank body and the upper cover; The fastening mechanism includes a fastening plate and an adjusting motor, the middle part of the fastening plate has a first thread groove, one end of the fastening plate is provided with a conical sleeve, a buffer pad is provided in the conical sleeve, the other end of the fastening plate is provided with a plug-in rod, the output end of the adjusting motor is provided with a first screw, both sides of the upper cover are provided with upper semi-conical rods, the outer side of the tank body is provided with lower semi-conical rods, and the upper semi-conical rod and the lower semi-conical rod are abutted against each other, the conical sleeve is abutted against the outer sides of the upper semi-conical rod and the lower semi-conical rod, the plug-in rod is plugged into the upper grinding body and is located on the outer side of the upper grinding body, the motor is arranged on the outer side of the tank body, and the first screw is threadedly connected to the fastening plate and is located in the first thread groove.

2. The graphite powder grinding and pulverizing equipment for lithium battery negative electrode material according to claim 1, characterized in that: The fastening mechanism also includes two positioning rods and a connecting plate. The two positioning rods are respectively fixedly connected to the connecting plate and are located at both ends of the connecting plate. The two positioning rods are also respectively fixedly connected to the tank body and are located on the outside of the tank body. The fastening plate is slidably connected to the corresponding positioning rods and is sleeved on the two positioning rods. The first screw is arranged in the middle of the connecting plate through a bearing.

3. The graphite powder grinding and pulverizing equipment for lithium battery negative electrode material according to claim 2, characterized in that: The outer side of the upper grinding body is provided with two sliding blocks, the inner side of the tank body is provided with two sliding grooves, and the sliding blocks are located in the sliding grooves.

4. The graphite powder grinding and pulverizing equipment for lithium battery negative electrode material according to claim 3, characterized in that: The lithium battery negative electrode material graphite powder grinding and pulverizing equipment also includes a sealing cover and a feed pipe. A feed hopper is arranged above the feed pipe. The sealing cover is threadedly connected to the crushing tube and covers the crushing tube. The feed pipe is connected to the crushing tube and is inclinedly arranged on the outside of the crushing tube.

5. The graphite powder grinding and pulverizing equipment for lithium battery negative electrode material according to claim 4, characterized in that: The crushing mechanism includes a crushing motor, a partition and a plurality of fixed blades. A rotating blade is provided at the output end of the crushing motor. A material dropping hole is provided on the partition. The crushing motor is fixedly connected to the crushing tube and is located on the inner wall of the crushing tube. The partition is fixedly connected to the crushing tube and is located below the crushing tube. The plurality of fixed blades are respectively fixedly connected to the crushing tube and are located on the inner wall of the crushing tube and are also located between the plurality of rotating blades.

6. The graphite powder grinding and pulverizing equipment for lithium battery negative electrode material according to claim 5, characterized in that: The output end of the crushing motor is also provided with an auxiliary grinding block, which has an inclined surface. The auxiliary grinding block is fixedly connected to the crushing motor and is located at the output end of the crushing motor and below the plurality of rotating blades. The auxiliary grinding block is also located directly above the upper grinding body.

7. A lithium battery negative electrode material graphite powder grinding and pulverizing system, comprising the lithium battery negative electrode material graphite powder grinding and pulverizing device as claimed in claim 6, characterized in that: It also includes a plurality of supporting legs, a collecting box and a mounting frame, wherein the plurality of supporting legs are respectively fixedly connected to the tank body and are located below the tank body, the collecting box is slidably connected to the mounting frame and is located inside the mounting frame and is also located below the discharge pipe, and the mounting frame is fixedly connected to the tank body and is located below the tank body and is also located between the plurality of supporting legs.

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