Crushing device for lithium battery negative electrode material and operation method thereof

Abstract

The invention discloses a smashing device for a lithium battery negative electrode material and an operation method of the smashing device, and relates to the technical field of smashing devices.The smashing device comprises a smashing box, a discharging opening is connected to the bottom of the smashing box in a penetrating mode, a feeding opening is connected to the upper portion of one side of the smashing box in a penetrating mode, and two sets of supporting legs are symmetrically installed on the lower portion of the exterior of the smashing box; meanwhile, a filter plate is fixedly mounted at the upper part in the crushing box, and a circular barrel is fixedly mounted above the filter plate in the crushing box; by means of the air blowing device, air can be blown to materials being crushed, the materials can be turned over under the action of air flow, the materials can make more frequent contact with crushing blades under the action of the air flow in the crushing process, the crushing efficiency of the negative electrode materials can be improved by means of the air flow, and the crushing time is shortened; a certain amount of graphite powder can be generated after the materials are crushed, and the graphite powder can be blown up by airflow and discharged through a ventilation pipe, so that the graphite powder can be conveniently and independently recycled, and the crushing efficiency and practicability are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of pulverizing devices, and in particular to a pulverizing device for lithium battery negative electrode materials and an operating method thereof. Background Art

[0002] A battery is a cup, tank or other container or part of a composite container that contains an electrolyte solution and metal electrodes to generate an electric current. It is a device that can convert chemical energy into electrical energy. It has a positive electrode and a negative electrode.

[0003] For example, a graphite lithium battery negative electrode material crushing device with publication number CN114602604A enters the interior of the shell through the first opening, and the rotation of the rotating rod drives the spiral push rod to rotate. The rotation of the spiral push rod drives the raw materials inside the shell to transfer upward, and then enters the interior of the crushing tank through the second opening, and is crushed again by the first crushing rod. In this way, the raw materials that have not been completely crushed can be crushed repeatedly. Compared with designing a first filter, this will cause the bottom of the uncrushed first crushing rod to accumulate, which will cause uneven force on multiple first crushing rods and affect the continuous feeding effect of the feed pipe. This solution has better effect, but in actual use, when the battery negative electrode material is crushed, the material is only passively in contact with the crushing rod, and the material is crushed by the rotation of the crushing rod. The crushing efficiency of the material is not high, and the material cannot fully contact with the crushing rod. The crushing efficiency of the battery negative electrode material is not high, and there are certain defects in use.

[0004] Therefore, we propose a pulverizing device for lithium battery negative electrode materials and an operating method thereof to solve the above-mentioned problems. Summary of the invention

[0005] The purpose of the present invention is to provide a crushing device for lithium battery negative electrode materials and an operating method thereof, so as to solve the problem that when the battery negative electrode materials are crushed, the materials are only passively contacted with the crushing rod, and the materials are crushed by the rotation of the crushing rod, which has low crushing efficiency, and the materials cannot fully contact with the crushing rod, so the crushing efficiency of the battery negative electrode materials is not high.

[0006] To achieve the above object, the present invention provides the following technical solution: a pulverizing device for lithium battery negative electrode materials, comprising a pulverizing box, a discharge port is connected through the bottom of the pulverizing box, a feed port is connected through the top of one side of the pulverizing box, two groups of supporting legs are symmetrically installed at the bottom of the pulverizing box, a filter plate is fixedly installed at the top of the pulverizing box, a circular barrel is fixedly installed at the top of the filter plate, and a ventilation pipe is connected through the top of the rear side of the pulverizing box; Also includes: A crushing assembly is arranged inside and outside the crushing box, and the crushing assembly includes a fixed cover; A fixed cover is fixedly installed at the lower part of the crushing box, a driving motor is fixedly installed at the bottom of the fixed cover, and a rotating shaft is fixedly installed at the output end of the driving motor, and the rotating shaft is rotatably connected to the fixed cover and the filter plate, and a rotating rod is rotatably connected to the inner side of the filter plate, and a positioning rod is fixedly installed at the top of the rotating shaft and the rotating rod, and the positioning rod is fixedly connected to the circular barrel, and a plurality of crushing blades are symmetrically installed on the outside of the rotating shaft and the rotating rod; The first pulley is fixedly installed on the outside of the rotating shaft and located above the fixed cover. A fixing plate is fixedly installed on one side of the inner part of the crushing box and located below the filter plate, and a protrusion is provided on the top of the fixing plate, and a shell is fixedly installed on one side of the bottom of the filter plate. At the same time, a vibration motor is fixedly installed inside the shell, and one end of the fixing plate is fixedly connected to the shell, and the bottom end of the rotating rod passes through the fixing plate and is fixedly installed with a driven gear, and the bottom of the fixing plate is located on one side of the driven gear and is rotatably connected with a connecting shaft, and at the same time, a second pulley is fixedly installed on the outside of the connecting shaft, and the second pulley is rotatably connected to the first pulley through a belt, and a driving gear is fixedly installed on the outside of the connecting shaft, and the driving gear is meshingly connected with the driven gear.

[0007] Preferably, a hollow tube is provided on the upper part of the interior of the crushing box, and a cylinder is fixedly installed on the upper part of the other side of the crushing box, and a first bevel gear is fixedly installed on the lower part of the outside of the rotating shaft, and at the same time, a rotating shaft is rotatably connected to one side of the lower part of the interior of the crushing box, and a support frame is rotatably connected to one side of the outer side of the rotating shaft, and the support frame is fixedly connected to the fixed cover, and a second bevel gear is fixedly installed on one end of the rotating shaft, and the second bevel gear is meshingly connected to the first bevel gear.

[0008] By adopting the above technical solution, the rotating shaft can drive the rotating shaft to rotate while rotating.

[0009] Preferably, a movable rod is slidably connected inside the cylinder, and a piston is fixedly installed on the top of the movable rod, and the piston is slidably connected to the cylinder, and at the same time, a movable frame is fixedly installed on the bottom of the movable rod, and a rotating rod is fixedly installed on the other end of the rotating shaft, and a column block is fixedly installed on one side of the rotating rod, and the column block is slidably connected to the movable frame.

[0010] By adopting the above technical solution, the piston can be driven to move back and forth inside the cylinder during the continuous rotation of the rotating shaft.

[0011] Preferably, an air inlet pipe is opened through the upper part of one side of the cylinder, and an air outlet pipe is connected through the upper part of the other side of the cylinder, and one end of the air outlet pipe passes through the crushing box and is connected through a telescopic hose, and at the same time, the end of the telescopic hose away from the air outlet pipe is connected through the hollow tube, and a one-way valve is provided inside the air inlet pipe and the air outlet pipe.

[0012] By adopting the above technical solution, the hollow tube can be inflated.

[0013] Preferably, a reciprocating screw is rotatably connected to one side of the crushing box located above the hollow tube, and one end of the reciprocating screw passes through the crushing box and is fixedly installed with a third pulley, and a fourth pulley is fixedly installed on the side of the rotating shaft outside close to the movable frame, and the fourth pulley is rotatably connected to the third pulley through a belt.

[0014] By adopting the above technical solution, the rotating shaft can drive the reciprocating screw to rotate during the rotation process.

[0015] Preferably, a movable sleeve is sleeved on one side of the outer side of the reciprocating screw rod, and a limiting rod is fixedly installed on the other side of the crushing box above the hollow tube, and the outer side of the limiting rod is slidably connected to the limiting sleeve, and the limiting sleeve and the movable sleeve are fixedly connected to the hollow tube.

[0016] By adopting the above technical solution, the hollow rod can be driven to perform reciprocating movement.

[0017] Preferably, a plurality of telescopic tubes are connected through the bottom of the hollow tube, and an air jet tube is connected through one end of the telescopic tube away from the hollow tube, and a movable plate is fixedly installed on the outside of the plurality of air jet tubes, and a mounting frame is fixedly installed on one end of the hollow tube, and a driven shaft is rotatably connected inside the mounting frame, and a rotating gear is fixedly installed on one side of the driven shaft, and a tooth plate is fixedly installed on one side of the rotating gear inside the crushing box, and the rotating gear is meshingly connected to the tooth plate.

[0018] By adopting the above technical solution, the hollow tube can drive the driven shaft to rotate during the left-right reciprocating movement.

[0019] Preferably, a cam is fixedly mounted on one end of the driven shaft, and a connecting plate is fixedly mounted on one end of the movable plate, and the cam is slidably connected to the connecting plate, and at the same time, a plurality of limit frames are slidably connected to the outside of the movable plate, and the limit frames are fixedly connected to the hollow tube, and a mounting plate is fixedly mounted on the other end of the movable plate, and a support rod is slidably connected to an inner side of the mounting plate, and at the same time, one end of the support rod is fixedly connected to one side limit frame, and a telescopic spring is sleeved on one side of the outer side of the support rod, and one end of the telescopic spring is fixedly connected to one side limit frame, and the other end of the telescopic spring is fixedly connected to the mounting plate.

[0020] By adopting the above technical solution, the movable plate can move back and forth when the hollow tube moves left and right, thereby further expanding the blowing range.

[0021] Compared with the prior art, the invention has the following beneficial effects: the pulverizing device for negative electrode materials of lithium batteries and the operating method thereof are provided with pulverizing components inside and outside the pulverizing box, so that the material being pulverized can be blown, and the material can be turned over under the action of the airflow, so that the material can be more frequently contacted with the pulverizing blade under the action of the airflow during the pulverizing process, and the pulverizing efficiency of the negative electrode material can be improved by means of the airflow, and the pulverizing time can be shortened. After the material is pulverized, a certain amount of graphite powder will be generated, and the airflow can blow up the graphite powder and discharge it through the ventilation pipe, so that the graphite powder can be recovered separately, thereby improving the pulverizing efficiency and practicality. 1. When the negative electrode material of the lithium battery is crushed, the negative electrode material of the lithium battery is put into the crushing box through the feed port so that the material falls into the circular barrel, and then the driving motor is started to drive the rotating shaft to rotate. After the rotating shaft rotates, the connecting shaft is driven to rotate through the cooperation of the first pulley and the second pulley, and then the rotating rod is driven to rotate through the cooperation of the driving gear and the driven gear, so that the two sets of crushing blades crush the material. During the crushing process, the graphite powder generated by the crushing of the battery material can be collected by the external fan through the ventilation pipe. During the crushing process, it can be filtered through the filter plate, and the material that has not been completely crushed continues to remain in the circular barrel. The filter plate is vibrated by arranging a vibration motor inside the shell, so that the material can be shaken evenly and the clogging of the filter plate can be reduced. After the rotating shaft rotates, the rotating shaft is driven to rotate through the cooperation of the first bevel gear and the second bevel gear. After the rotating shaft rotates, the rotating rod is driven to rotate. After the rotating rod rotates, it is connected to the sliding of the column block and the movable frame. The movable rod can be driven to move up and down reciprocatingly, so that the piston moves back and forth inside the cylinder. When the piston moves downward, the one-way valve inside the air inlet pipe opens and the one-way valve inside the air outlet pipe closes, so that outside air can be drawn into the cylinder. When the piston rises, the one-way valve inside the air inlet pipe closes and the one-way valve inside the air outlet pipe opens, so that the air inside the cylinder can pass into the hollow tube through the air outlet pipe and the telescopic hose, and then the gas can be ejected through the jet pipe. The inner diameter of the jet pipe is small, so that the air ejection can increase the flow rate, so that the material being crushed can be blown, and the material can be turned over under the action of the airflow, so that the material can be more frequently in contact with the crushing blade during the crushing process under the action of the airflow. The crushing efficiency of the negative electrode material can be improved by means of the airflow, and the crushing time can be shortened. After the material is crushed, a certain amount of graphite powder will be generated, and the airflow can blow up the graphite powder and discharge it through the ventilation pipe, which is convenient for the separate recovery of the graphite powder, thereby improving the crushing efficiency and practicality. 2. During the rotation process, the rotating shaft can drive the reciprocating screw to rotate through the cooperation of the third pulley and the fourth pulley. After the reciprocating screw rotates, it can drive the movable sleeve to move, thereby driving the hollow tube to move. During the movement process, the hollow tube drives the limit sleeve to slide on the limit rod to limit the position, so that the hollow tube reciprocates above the inside of the crushing box, which can expand the blowing area, fully blow the material being crushed, increase the blowing range, and further improve the crushing efficiency; 3. When the hollow tube moves back and forth, it can drive the driven shaft and the rotating gear on the mounting frame to move. After the rotating gear moves, it can drive the driven shaft to rotate continuously through the engagement with the tooth plate. After the driven shaft rotates continuously, it drives the cam to rotate. After the cam rotates, it can push the movable plate to slide on the limit frame through the sliding connection with the connecting plate, thereby driving the jet tube to move, the position of the jet tube can be adjusted, and the telescopic tube can be driven to extend. After the movable plate moves, it drives the mounting plate to slide on the support rod, and the telescopic spring can be stretched. After the cam rotates one circle, the movable plate is reset under the action of the telescopic spring, so that the movable plate can move back and forth when the hollow tube moves left and right, thereby further expanding the blowing range, further improving the crushing efficiency, and improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the three-dimensional cross-sectional structure of the crushing box of the present invention; Figure 3 For the present invention Figure 2 A schematic diagram of the enlarged structure of the middle A area; Figure 4 For the present invention Figure 2 Schematic diagram of the enlarged structure of the middle B area; Figure 5 It is a schematic diagram of the structure of the movable frame of the present invention; Figure 6 It is a schematic diagram of the hollow tube structure of the present invention; Figure 7 This is a structural schematic diagram of the hollow tube of the present invention from another perspective; Figure 8 For the present invention Figure 7 Schematic diagram of the enlarged structure of the middle C area; Fig. 9 For the present invention Figure 7 Schematic diagram of the enlarged structure of area D in the middle.

[0023] In the figure: 1. crushing box; 101. discharge port; 102. feed port; 103. support leg; 104. filter plate; 105. round barrel; 106. ventilation pipe; 2. crushing assembly; 201. fixed cover; 202. drive motor; 203. rotating shaft; 204. rotating rod; 205. positioning rod; 206. crushing blade; 207. first pulley; 208. fixed plate; 209. connecting shaft; 210. second pulley; 211. driving gear; 212. driven gear; 213. hollow tube; 214. cylinder; 215. first bevel gear; 216. second bevel gear; 217. rotating shaft; 218. support frame; 2 19. movable rod; 220. piston; 221. movable frame; 222. rotating rod; 223. column block; 224. air inlet pipe; 225. air outlet pipe; 226. reciprocating screw rod; 227. third pulley; 228. fourth pulley; 229. movable sleeve; 230. limiting rod; 231. limiting sleeve; 232. telescopic hose; 233. telescopic tube; 234. jet pipe; 235. movable plate; 236. limiting frame; 237. tooth plate; 238. mounting frame; 239. driven shaft; 240. rotating gear; 241. cam; 242. connecting plate; 243. mounting plate; 244. support rod; 245. telescopic spring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] See also Figure 1-Figure 9 The present invention provides a technical solution: a pulverizing device for lithium battery negative electrode materials, comprising a pulverizing box 1, a discharge port 101 is connected through the bottom of the pulverizing box 1, a feed port 102 is connected through the top of one side of the pulverizing box 1, and two groups of supporting legs 103 are symmetrically installed at the bottom of the outside of the pulverizing box 1, and a filter plate 104 is fixedly installed on the top of the inside of the pulverizing box 1, and a circular barrel 105 is fixedly installed on the top of the filter plate 104 inside the pulverizing box 1, and a ventilation pipe 106 is connected through the top of the rear side of the pulverizing box 1; Also includes: The crushing assembly 2 is arranged inside and outside the crushing box 1, and the crushing assembly 2 includes a fixed cover 201; A fixed cover 201 is fixedly installed at the lower part of the crushing box 1, a driving motor 202 is fixedly installed at the bottom of the fixed cover 201, and a rotating shaft 203 is fixedly installed at the output end of the driving motor 202, and the rotating shaft 203 is rotatably connected to the fixed cover 201 and the filter plate 104, and a rotating rod 204 is rotatably connected to the inner side of the filter plate 104, and a positioning rod 205 is fixedly installed on the top of the rotating shaft 203 and the rotating rod 204, and the positioning rod 205 is fixedly connected to the circular barrel 105, and a plurality of crushing blades 206 are symmetrically installed on the outside of the rotating shaft 203 and the rotating rod 204; The first pulley 207 is fixedly mounted on the outside of the rotating shaft 203 and located above the fixed cover 201. A fixed plate 208 is fixedly mounted on one side of the inner part of the crushing box 1 and located below the filter plate 104. A protrusion is provided on the top of the fixed plate 208. A shell is fixedly mounted on one side of the bottom of the filter plate 104. At the same time, a vibration motor is fixedly mounted inside the shell. One end of the fixed plate 208 is fixedly connected to the shell. The bottom end of the rotating rod 204 passes through the fixed plate 208 and is fixedly mounted with a driven gear 212. The bottom of the fixed plate 208 is located on one side of the driven gear 212 and is rotatably connected with a connecting shaft 209. At the same time, a second pulley 210 is fixedly mounted on the outer bottom of the connecting shaft 209. The second pulley 210 is rotatably connected to the first pulley 207 through a belt. A driving gear 211 is fixedly mounted on the outer top of the connecting shaft 209, and the driving gear 211 is meshed and connected with the driven gear 212. A hollow tube 213 is provided on the upper part of the crushing box 1, and a cylinder 214 is fixedly installed on the upper part of the other side of the crushing box 1, and a first bevel gear 215 is fixedly installed on the lower part of the outer part of the rotating shaft 203, and a rotating shaft 217 is rotatably connected to one side of the lower part of the crushing box 1, and a support frame 218 is rotatably connected to one side of the outer part of the rotating shaft 217, and the support frame 218 is fixedly connected to the fixed cover 201, and a second bevel gear 216 is fixedly installed on one end of the rotating shaft 217, and the second bevel gear 216 is meshedly connected with the first bevel gear 215; A movable rod 219 is slidably connected inside the cylinder 214, and a piston 220 is fixedly installed on the top of the movable rod 219, and the piston 220 is slidably connected to the cylinder 214. At the same time, a movable frame 221 is fixedly installed on the bottom of the movable rod 219, and a rotating rod 222 is fixedly installed on the other end of the rotating shaft 217, and a column block 223 is fixedly installed on one side of the rotating rod 222, and the column block 223 is slidably connected to the movable frame 221; An air inlet pipe 224 is provided on the upper side of one side of the cylinder 214, and an air outlet pipe 225 is provided on the upper side of the other side of the cylinder 214, and one end of the air outlet pipe 225 passes through the crushing box 1 and is connected with a telescopic hose 232, and at the same time, one end of the telescopic hose 232 away from the air outlet pipe 225 is connected with the hollow tube 213, and both the air inlet pipe 224 and the air outlet pipe 225 are provided with a one-way valve.

[0026] Embodiment 1: Figure 1-Figure 7 As shown, when the negative electrode material of the lithium battery is crushed, the negative electrode material of the lithium battery is put into the crushing box 1 through the feed port 102, so that the material falls into the circular barrel 105, and then the driving motor 202 is started to drive the rotating shaft 203 to rotate. After the rotating shaft 203 rotates, the first belt pulley 207 and the second belt pulley 210 cooperate to drive the connecting shaft 209 to rotate, and then the driving gear 211 and the driven gear 212 cooperate to drive the rotating rod 204 to rotate, so that the two groups of crushing blades 206 crush the material. During the crushing process, the ventilation pipe 106 is connected to the outside. The fan can collect graphite powder generated by crushing battery materials. During the crushing process, it can be filtered through the filter plate 104. The materials that have not been completely crushed continue to remain in the circular barrel 105. The filter plate 104 is vibrated by arranging a vibration motor inside the shell, which can vibrate the material and reduce the clogging of the filter plate 104. After the rotating shaft 203 rotates, the first bevel gear 215 and the second bevel gear 216 cooperate to drive the rotating shaft 217 to rotate. After the rotating shaft 217 rotates, it drives the rotating rod 222 to rotate. After the rotating rod 222 rotates, it passes through the column block 22 The sliding connection with the movable frame 221 can drive the movable rod 219 to move up and down reciprocatingly, so that the piston 220 moves back and forth inside the cylinder 214. When the piston 220 moves downward, the one-way valve inside the air inlet pipe 224 opens and the one-way valve inside the air outlet pipe 225 closes, so that the outside air can be sucked into the cylinder 214. When the piston 220 rises, the one-way valve inside the air inlet pipe 224 closes and the one-way valve inside the air outlet pipe 225 opens, so that the air inside the cylinder 214 can be passed into the hollow tube 213 through the air outlet pipe 225 and the telescopic hose 232, and then the gas can The air is ejected through the air jet 234, and the inner diameter of the air jet 234 is small, so that the air ejection can increase the flow rate, so that the material being crushed can be blown, and the material can be turned under the action of the airflow, so that the material can be more frequently in contact with the crushing blade 206 under the action of the airflow during the crushing process. The crushing efficiency of the negative electrode material can be improved with the help of the airflow, and the crushing time can be shortened. After the material is crushed, a certain amount of graphite powder will be produced, and the airflow can blow up the graphite powder and discharge it through the ventilation pipe 106, so that the graphite powder can be recovered separately, thereby improving the crushing efficiency and practicality.

[0027] A reciprocating screw rod 226 is rotatably connected to one side of the upper hollow tube 213 inside the crushing box 1, and one end of the reciprocating screw rod 226 passes through the crushing box 1 and is fixedly installed with a third pulley 227, and a fourth pulley 228 is fixedly installed on one side of the rotating shaft 217 near the movable frame 221, and the fourth pulley 228 is rotatably connected to the third pulley 227 through a belt; A movable sleeve 229 is sleeved on one side of the outer side of the reciprocating screw rod 226, and a limiting rod 230 is fixedly installed on the other side above the hollow tube 213 inside the crushing box 1, and the outer side of the limiting rod 230 is slidably connected to the limiting sleeve 231, and the limiting sleeve 231 and the movable sleeve 229 are both fixedly connected to the hollow tube 213.

[0028] Embodiment 2: Figure 2 and Figure 6-Figure 7 As shown, the rotating shaft 217 can drive the reciprocating screw 226 to rotate through the cooperation of the third pulley 227 and the fourth pulley 228 during the rotation process. After the reciprocating screw 226 rotates, it can drive the movable sleeve 229 to move, and then drive the hollow tube 213 to move. During the movement, the hollow tube 213 drives the limiting sleeve 231 to slide on the limiting rod 230 for limiting, so that the hollow tube 213 reciprocates above the inside of the crushing box 1, which can expand the blowing area, fully blow the material being crushed, increase the blowing range, and further improve the crushing efficiency.

[0029] A plurality of telescopic tubes 233 are connected through the bottom of the hollow tube 213, and an air jet 234 is connected through one end of the telescopic tube 233 away from the hollow tube 213, and a movable plate 235 is fixedly installed outside the plurality of air jet 234, and a mounting frame 238 is fixedly installed at one end of the hollow tube 213, and a driven shaft 239 is rotatably connected inside the mounting frame 238, and a rotating gear 240 is fixedly installed on one side of the driven shaft 239, and a tooth plate 237 is fixedly installed inside the crushing box 1 on one side of the rotating gear 240, and the rotating gear 240 is meshedly connected with the tooth plate 237; A cam 241 is fixedly installed on one end of the driven shaft 239, and a connecting plate 242 is fixedly installed on one end of the movable plate 235, and the cam 241 is slidably connected to the connecting plate 242, and at the same time, a plurality of limit frames 236 are slidably connected to the outside of the movable plate 235, and the limit frames 236 are fixedly connected to the hollow tube 213, and a mounting plate 243 is fixedly installed on the other end of the movable plate 235, and a support rod 244 is slidably connected to the inner side of the mounting plate 243, and at the same time, one end of the support rod 244 is fixedly connected to one side of the limit frame 236, and a telescopic spring 245 is sleeved on one side of the outer side of the support rod 244, and one end of the telescopic spring 245 is fixedly connected to one side of the limit frame 236, and the other end of the telescopic spring 245 is fixedly connected to the mounting plate 243.

[0030] Embodiment 3: Figure 2 and Figure 6-Figure 9 As shown, when the hollow tube 213 moves back and forth, it can drive the driven shaft 239 and the rotating gear 240 on the mounting frame 238 to move. After the rotating gear 240 moves, it can drive the driven shaft 239 to rotate continuously through the meshing with the tooth plate 237. After the driven shaft 239 rotates continuously, it drives the cam 241 to rotate. After the cam 241 rotates, it can push the movable plate 235 to slide on the limit frame 236 through the sliding connection with the connecting plate 242, thereby driving the jet pipe 234 to move, the position of the jet pipe 234 can be adjusted, and the telescopic tube 233 can be driven to extend. After the movable plate 235 moves, it drives the mounting plate 243 to slide on the support rod 244, and the telescopic spring 245 can be stretched. After the cam 241 rotates one circle, the movable plate 235 is reset under the action of the telescopic spring 245, so that when the hollow tube 213 moves left and right, the movable plate 235 can reciprocate back and forth, thereby further expanding the blowing range, further improving the crushing efficiency, and improving practicality.

[0031] Working principle: When using the pulverizing device for lithium battery negative electrode materials, first, according to Figure 1-Figure 9As shown, when the negative electrode material of the lithium battery is crushed, the negative electrode material of the lithium battery is put into the crushing box 1 through the feed port 102, so that the material falls into the circular barrel 105, and then the driving motor 202 is started to drive the rotating shaft 203 to rotate. After the rotating shaft 203 rotates, the first pulley 207 and the second pulley 210 cooperate to drive the connecting shaft 209 to rotate, and then the driving gear 211 and the driven gear 212 cooperate to drive the rotating rod 204 to rotate, so that the two groups of crushing blades 206 crush the material. During the crushing process, the graphite powder generated by the crushing of the battery material can be collected by the external fan through the ventilation pipe 106, and can be filtered through the filter plate 104 during the crushing process. The material that has not been completely crushed continues to remain in the circular barrel 105. The filter plate 104 is vibrated by arranging a vibration motor inside the shell, so that the material can be shaken evenly and the clogging of the filter plate 104 can be reduced. After the rotating shaft 203 rotates, the first bevel gear 2 15 cooperates with the second bevel gear 216 to drive the rotating shaft 217 to rotate, and after the rotating shaft 217 rotates, it drives the rotating rod 222 to rotate. After the rotating rod 222 rotates, the sliding connection between the column block 223 and the movable frame 221 can drive the movable rod 219 to move up and down, so that the piston 220 moves back and forth inside the cylinder 214. When the piston 220 moves downward, the one-way valve inside the air inlet pipe 224 opens and the one-way valve inside the air outlet pipe 225 closes, so that the outside air can be sucked into the cylinder 214. When the piston 220 rises, the one-way valve inside the air inlet pipe 224 closes and the one-way valve inside the air outlet pipe 225 opens, so that the air inside the cylinder 214 can be passed into the hollow tube 213 through the air outlet pipe 225 and the telescopic hose 232, and then the gas can be ejected through the jet pipe 234. The inner diameter of the jet pipe 234 is small, so that the air ejection can increase the flow rate, so that the material being crushed can be blown, and the material can be turned over under the action of the airflow; The rotating shaft 217 can drive the reciprocating screw 226 to rotate through the cooperation of the third pulley 227 and the fourth pulley 228 during the rotation process. After the reciprocating screw 226 rotates, it can drive the movable sleeve 229 to move, and then drive the hollow tube 213 to move. During the movement, the hollow tube 213 drives the limiting sleeve 231 to slide on the limiting rod 230 for limiting, so that the hollow tube 213 reciprocates above the inside of the crushing box 1, which can expand the blowing area, fully blow the material being crushed, increase the blowing range, and further improve the crushing efficiency. When the hollow tube 213 reciprocates, it can drive the driven shaft 239 and the rotating gear 240 on the mounting frame 238 to move. After the rotating gear 240 moves, it can be moved with the tooth plate The meshing of 237 can drive the driven shaft 239 to rotate continuously, and the driven shaft 239 drives the cam 241 to rotate after continuous rotation. After the cam 241 rotates, it can push the movable plate 235 to slide on the limit frame 236 through the sliding connection with the connecting plate 242, and then drive the jet pipe 234 to move, the position of the jet pipe 234 can be adjusted, and the telescopic tube 233 can be driven to extend. After the movable plate 235 moves, it drives the mounting plate 243 to slide on the support rod 244, and the telescopic spring 245 can be stretched. After the cam 241 rotates one circle, the movable plate 235 is reset under the action of the telescopic spring 245, so that the movable plate 235 can move back and forth when the hollow tube 213 moves left and right, thereby further expanding the blowing range.

[0032] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0033] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pulverizing device for lithium battery negative electrode materials, comprising a pulverizing box (1), wherein a discharge port (101) is connected through the bottom of the pulverizing box (1), and a feed port (102) is connected through the top of one side of the pulverizing box (1), and two groups of supporting legs (103) are symmetrically installed at the bottom of the outside of the pulverizing box (1), and a filter plate (104) is fixedly installed at the top of the inside of the pulverizing box (1), and a circular barrel (105) is fixedly installed above the filter plate (104) inside the pulverizing box (1), and a ventilation pipe (106) is connected through the top of the rear side of the pulverizing box (1); It is characterized in that Also includes: A crushing assembly (2) is arranged inside and outside the crushing box (1), and the crushing assembly (2) comprises a fixed cover (201); A fixed cover (201) is fixedly mounted at the lower part of the crushing box (1); a driving motor (202) is fixedly mounted at the bottom of the fixed cover (201); a rotating shaft (203) is fixedly mounted at the output end of the driving motor (202); the rotating shaft (203) is rotatably connected to the fixed cover (201) and the filter plate (104); a rotating rod (204) is rotatably connected to one side of the inside of the filter plate (104); a positioning rod (205) is fixedly mounted on the top of each of the rotating shaft (203) and the rotating rod (204); the positioning rod (205) is fixedly connected to the circular barrel (105); and a plurality of crushing blades (206) are symmetrically mounted on the outside of each of the rotating shaft (203) and the rotating rod (204); A first pulley (207) is fixedly mounted outside the rotating shaft (203) and located above the fixed cover (201); a fixed plate (208) is fixedly mounted on one side of the interior of the crushing box (1) and located below the filter plate (104); a protrusion is provided on the top of the fixed plate (208); a housing is fixedly mounted on one side of the bottom of the filter plate (104); a vibration motor is fixedly mounted inside the housing; one end of the fixed plate (208) is fixedly connected to the housing; and the bottom end of the rotating rod (204) passes through the fixed plate ( The fixing plate (208) is fixedly mounted with a driven gear (212), and the bottom of the fixing plate (208) is located on one side of the driven gear (212) and is rotatably connected to a connecting shaft (209), and a second pulley (210) is fixedly mounted on the outside of the connecting shaft (209) and is rotatably connected to the first pulley (207) via a belt, and a driving gear (211) is fixedly mounted on the outside of the connecting shaft (209) and is meshingly connected to the driven gear (212).

2. A pulverizing device for lithium battery negative electrode materials according to claim 1, characterized in that: A hollow tube (213) is provided on the upper part of the crushing box (1), and a cylinder (214) is fixedly mounted on the upper part of the other side of the crushing box (1), and a first bevel gear (215) is fixedly mounted on the lower part of the outer part of the rotating shaft (203), and a rotating shaft (217) is rotatably connected to one side of the lower part of the crushing box (1), and a support frame (218) is rotatably connected to one side of the outer part of the rotating shaft (217), and the support frame (218) is fixedly connected to the fixed cover (201), and a second bevel gear (216) is fixedly mounted on one end of the rotating shaft (217), and the second bevel gear (216) is meshingly connected to the first bevel gear (215).

3. A pulverizing device for lithium battery negative electrode materials according to claim 2, characterized in that: A movable rod (219) is slidably connected inside the cylinder (214), and a piston (220) is fixedly mounted on the top of the movable rod (219), and the piston (220) is slidably connected to the cylinder (214). A movable frame (221) is fixedly mounted on the bottom of the movable rod (219), and a rotating rod (222) is fixedly mounted on the other end of the rotating shaft (217), and a column block (223) is fixedly mounted on one side of the rotating rod (222), and the column block (223) is slidably connected to the movable frame (221).

4. A pulverizing device for lithium battery negative electrode materials according to claim 2, characterized in that: An air inlet pipe (224) is provided through the top of one side of the cylinder (214), and an air outlet pipe (225) is provided through the top of the other side of the cylinder (214), and one end of the air outlet pipe (225) passes through the crushing box (1) and is connected through a telescopic hose (232), while an end of the telescopic hose (232) away from the air outlet pipe (225) is connected through the hollow pipe (213), and one-way valves are provided inside the air inlet pipe (224) and the air outlet pipe (225).

5. The pulverizing device for lithium battery negative electrode materials according to claim 3, characterized in that: A reciprocating screw rod (226) is rotatably connected to a side located above the hollow tube (213) inside the crushing box (1), and one end of the reciprocating screw rod (226) passes through the crushing box (1) and is fixedly mounted with a third pulley (227), and a fourth pulley (228) is fixedly mounted on a side of the rotating shaft (217) close to the movable frame (221), and the fourth pulley (228) is rotatably connected to the third pulley (227) via a belt.

6. A pulverizing device for lithium battery negative electrode materials according to claim 5, characterized in that: A movable sleeve (229) is sleeved on one side of the outside of the reciprocating screw rod (226), and a limiting rod (230) is fixedly installed on the other side of the inside of the crushing box (1) located above the hollow tube (213), and the limiting sleeve (231) is slidably connected to the outer side of the limiting rod (230), and the limiting sleeve (231) and the movable sleeve (229) are both fixedly connected to the hollow tube (213).

7. A pulverizing device for lithium battery negative electrode materials according to claim 2, characterized in that: A plurality of telescopic tubes (233) are connected through the bottom of the hollow tube (213), and an air jet tube (234) is connected through one end of the telescopic tube (233) away from the hollow tube (213), and a movable plate (235) is fixedly installed outside the plurality of air jet tubes (234), and a mounting frame (238) is fixedly installed at one end of the hollow tube (213), and a driven shaft (239) is rotatably connected inside the mounting frame (238), and a rotating gear (240) is fixedly installed on one side of the driven shaft (239), and a tooth plate (237) is fixedly installed inside the crushing box (1) on one side of the rotating gear (240), and the rotating gear (240) is meshingly connected to the tooth plate (237).

8. A pulverizing device for lithium battery negative electrode materials according to claim 7, characterized in that: A cam (241) is fixedly mounted on one end of the driven shaft (239), and a connecting plate (242) is fixedly mounted on one end of the movable plate (235), and the cam (241) is slidably connected to the connecting plate (242), and a plurality of limit frames (236) are slidably connected to the outside of the movable plate (235), and the limit frames (236) are fixedly connected to the hollow tube (213), and a mounting plate (243) is fixedly mounted on the other end of the movable plate (235), and a support rod (244) is slidably connected to one side of the mounting plate (243), and one end of the support rod (244) is fixedly connected to one side of the limit frame (236), and a telescopic spring (245) is sleeved on one side of the support rod (244), and one end of the telescopic spring (245) is fixedly connected to one side of the limit frame (236), and the other end of the telescopic spring (245) is fixedly connected to the mounting plate (243).

9. An operating method of a pulverizing device for lithium battery negative electrode materials, using the pulverizing device for lithium battery negative electrode materials as described in claims 1-8, the operating steps are as follows: Step 1: When the negative electrode material of the lithium battery is crushed, the negative electrode material of the lithium battery is put into the crushing box (1) through the feed port (102), so that the material falls into the circular barrel (105), and then the driving motor (202) is started to drive the rotating shaft (203) to rotate. After the rotating shaft (203) rotates, the first belt pulley (207) and the second belt pulley (210) cooperate to drive the connecting shaft (209) to rotate, and then the driving gear (211) and the driven gear (212) cooperate to drive the rotating rod (204) to rotate, so that the two groups of crushing blades (206) crush the material. During the crushing process, the ventilation pipe (106) is used to pass through the ventilation pipe (106). ) An external fan can collect graphite powder generated by crushing battery materials. During the crushing process, the powder can be filtered through the filter plate (104). The material that has not been completely crushed continues to remain in the circular barrel (105). A vibration motor is arranged inside the shell to make the filter plate (104) vibrate, which can shake the material evenly and reduce the clogging of the filter plate (104). After the rotating shaft (203) rotates, the first bevel gear (215) and the second bevel gear (216) cooperate to drive the rotating shaft (217) to rotate. After the rotating shaft (217) rotates, it drives the rotating rod (222) to rotate. After the rotating rod (222) rotates, it drives the rotating shaft (217) to rotate. The sliding connection between the block (223) and the movable frame (221) can drive the movable rod (219) to move up and down reciprocatingly, so that the piston (220) moves back and forth inside the cylinder (214). When the piston (220) moves downward, the one-way valve inside the air inlet pipe (224) opens and the one-way valve inside the air outlet pipe (225) closes, so that outside air can be drawn into the cylinder (214). When the piston (220) rises, the one-way valve inside the air inlet pipe (224) closes and the one-way valve inside the air outlet pipe (225) opens, so that the air inside the cylinder (214) can be passed into the hollow tube (214) through the air outlet pipe (225) and the telescopic hose (232). 213), and then the gas can be ejected through the air jet (234). The air jet (234) has a small inner diameter, so that the air jet can increase the flow rate, so that the material being crushed can be blown, and the material can be turned under the action of the airflow, so that the material can be more frequently contacted with the crushing blade (206) under the action of the airflow during the crushing process. With the help of the airflow, the crushing efficiency of the negative electrode material can be improved, and the crushing time can be shortened. After the material is crushed, a certain amount of graphite powder will be generated, and the airflow can blow up the graphite powder and discharge it through the ventilation pipe (106), so that the graphite powder can be recovered separately, thereby improving the crushing efficiency and practicality; Step 2: During the rotation process, the rotating shaft (217) can drive the reciprocating screw (226) to rotate through the cooperation of the third pulley (227) and the fourth pulley (228). After the reciprocating screw (226) rotates, it can drive the movable sleeve (229) to move, thereby driving the hollow tube (213) to move. During the movement process, the hollow tube (213) drives the limiting sleeve (231) to slide on the limiting rod (230) to limit the position, so that the hollow tube (213) reciprocates above the inside of the crushing box (1), which can expand the blowing area, fully blow the material being crushed, increase the blowing range, and further improve the crushing efficiency. Step 3: When the hollow tube (213) moves back and forth, it can drive the driven shaft (239) and the rotating gear (240) on the mounting frame (238) to move. After the rotating gear (240) moves, it can drive the driven shaft (239) to rotate continuously through meshing with the toothed plate (237). After the driven shaft (239) rotates continuously, it drives the cam (241) to rotate. After the cam (241) rotates, it can push the movable plate (235) to slide on the limit frame (236) through the sliding connection with the connecting plate (242), thereby driving the jet pipe (234) to move. The position of the air injection pipe (234) can be adjusted, and the telescopic pipe (233) can be driven to extend. After the movable plate (235) moves, it drives the mounting plate (243) to slide on the support rod (244), and the telescopic spring (245) can be stretched. After the cam (241) rotates one circle, the movable plate (235) is reset under the action of the telescopic spring (245), so that when the hollow pipe (213) moves left and right, the movable plate (235) can move back and forth, thereby further expanding the blowing range, further improving the crushing efficiency, and improving the practicality.

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