CN114243864B - Monitoring device for lithium battery raw material grinding machine - Google Patents
Monitoring device for lithium battery raw material grinding machine Download PDFInfo
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- CN114243864B CN114243864B CN202210019298.5A CN202210019298A CN114243864B CN 114243864 B CN114243864 B CN 114243864B CN 202210019298 A CN202210019298 A CN 202210019298A CN 114243864 B CN114243864 B CN 114243864B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00309—Overheat or overtemperature protection
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/18—Details
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The invention belongs to the technical field of grinding, and particularly relates to a monitoring device for a lithium battery raw material grinding machine, which comprises a grinding machine body and a screen; the screen is double-layer, an insulating L-shaped heat conduction pipe is arranged in the hollow part of the screen, and one end of the heat conduction pipe penetrates through the side surface of the screen and extends upwards; two ends of the heat conduction pipe are sealed, mercury is filled in the heat conduction pipe, and a first electrode is fixedly connected to the inner wall of the heat conduction pipe at a position below the lowest liquid level of the mercury; the top end of the heat conduction pipe is fixedly connected with a second electrode, the first electrode and the second electrode are connected with the controller through wires, the grinder body is fixedly connected with an alarm, the alarm is connected with a power supply through wires, when powder formed by grinding through the grinding roller falls onto the screen for screening, the temperature of the ground powder is quickly increased to drive the heat conduction pipe to be increased, the first electrode and the second electrode are communicated with an electric appliance after mercury expands, and the alarm gives out a buzzer to reduce ablation damage of lithium battery raw materials due to high temperature and fire hazard caused by the ablation damage.
Description
Technical Field
The invention belongs to the technical field of grinding, and particularly relates to a monitoring device for a lithium battery raw material grinding machine.
Background
The grinding uses abrasive particles coated or pressed on a grinding tool, and carries out finishing processing on a processing surface through the relative motion of the grinding tool and a workpiece under certain pressure, the grinding can be used for processing various metal and non-metal materials, and the processing surface has the shapes of planes, inner and outer cylindrical surfaces and conical surfaces, convex and concave spherical surfaces, threads, tooth surfaces and other molded surfaces.
A chinese patent with publication number CN110614152A discloses a coal sample grinding device and coal sample grinding experimental apparatus, which comprises a cylindrical grinding cavity, a center pillar arranged in the grinding cavity and a control box arranged on the outer wall of the grinding cavity, wherein a first grinder and a second grinder are sequentially and fixedly arranged on the center pillar, a grinding wall is arranged between the first grinder and the grinding cavity, a feed inlet and a discharge outlet are arranged on the grinding cavity, and a coal storage bin is arranged below the grinding cavity. The invention also provides an experimental device for carrying out coal sample grinding experimental research by using the coal sample grinding device, wherein the grinding device can grind the coal sample twice, the experimental device can monitor the temperature of the coal sample in real time, and can analyze generated gases such as carbon monoxide and the like, thereby providing theoretical basis and technical support for safety protection work in the processes of coal sample crushing and underground drilling.
Need grind lithium cell raw materials among the prior art in the lithium cell manufacturing process, it is crucial to the performance influence of lithium cell to grind quality control, but when present machine of grinding ground the lithium cell raw materials, the temperature of grinding the roller is difficult to accurate control, and the long-time violent fricative grinding roller temperature risees the back and ablates lithium cell raw materials easily, arouses danger, and too high temperature makes the sintering caking of lithium cell raw materials after grinding simultaneously, seriously influences the grinding quality of lithium cell raw materials.
Therefore, the invention provides a monitoring device for a lithium battery raw material grinding machine.
Disclosure of Invention
To remedy the deficiencies of the prior art, at least one of the technical problems set forth in the background is addressed.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a monitoring device for a lithium battery raw material grinding machine, which comprises a grinding machine body and a screen; the screen is double-layer, an insulated L-shaped heat conduction pipe is arranged at the hollow part of the screen, and one end of the heat conduction pipe penetrates through the side surface of the screen and extends upwards; two ends of the heat conduction pipe are sealed, mercury is filled in the heat conduction pipe, and a first electrode is fixedly connected to the inner wall of the heat conduction pipe at a position below the lowest liquid level of the mercury; the top end of the heat conduction pipe is fixedly connected with a second electrode, the first electrode and the second electrode are connected with a controller through wires, the grinding machine body is fixedly connected with an alarm, and the alarm is connected with a power supply through the wires and the controller; when the lithium battery grinding machine works, lithium battery raw materials need to be ground in the lithium battery manufacturing process in the prior art, the grinding quality control is crucial to the performance of the lithium battery, but when the conventional grinding machine grinds the lithium battery raw materials, the temperature of a grinding roller is difficult to accurately control, the lithium battery raw materials are easy to ablate after the temperature of the grinding roller which is severely rubbed for a long time is increased, so that danger is caused, and meanwhile, the ground lithium battery raw materials are sintered and agglomerated due to overhigh temperature, so that the grinding quality of the lithium battery raw materials is seriously affected, at the moment, the heat conduction pipe extends into a screen, so that powder formed by grinding of the grinding roller falls onto the screen for screening, the temperature of grinding powder is quickly increased to drive the heat conduction pipe to be increased, so that mercury expands to communicate a first electrode with a second electrode, and then an alarm is controlled by a controller to give out a buzzer, and an operator is reminded to adjust the grinding parameters of the grinding machine in time, the temperature of the grinding roller is reduced, and the ablation damage of the lithium battery raw material due to high temperature and the fire hazard caused by the ablation damage are further reduced.
Preferably, the top of one side of the grinding machine body is connected with a fixed disc in a sliding mode through a sliding column, the top of the fixed disc is fixedly connected with a motor, and a group of electric push rods are fixedly connected between the two sides of the fixed disc and the top of the grinding machine body; the bottom of the grinder body is provided with a conical grinding chamber communicated with the feed hopper, an output shaft of the motor extends into the grinding chamber, the output shaft of the motor is fixedly connected with a conical grinding roller, and a group of elastic scraping blades are uniformly distributed on the periphery of the top of the grinding roller; the electric push rod is connected with a power supply through a controller; switch on an electrode and No. two electrodes after expanding through mercury for controller control fixed disk and motor rise, and then increase the clearance between grinding roller and the grinding room inner wall, reduce the violent frictional heating of grinding roller, the raw materials of grinding room inner wall adhesion through the doctor-bar simultaneously through striking off, reduce the adhesion, the air current that produces when the cooperation doctor-bar is rotatory is to grinding roller rapid cooling, further reduces the local high temperature of machine of grinding and to the quality influence of lithium cell raw materials.
Preferably, a conductive disc is connected in the heat conducting tube in a sliding manner at a position corresponding to the liquid level of the mercury, and an elastic sealing ring is fixedly sleeved in a sealing groove formed in the periphery of the disc; through the contact of the conductive disc and the liquid level at the top of the mercury, the mercury liquid level is prevented from generating ripples due to the vibration of the screen, and the error contact of the mercury and the second electrode is reduced.
Preferably, the top of the disc is provided with a conical reflux groove in the center, and the reflux groove penetrates through the disc; a group of conical exhaust grooves are uniformly distributed on the circumference of the bottom surface of the disc, and the top of each exhaust groove penetrates through the disc; porous cylinders are embedded in the top of the exhaust groove and the bottom of the reflux groove; a group of arc-shaped elastic sheets are uniformly distributed on the circumference of the inner wall of the reflux groove, and the top ends of the elastic sheets are higher than the top of the disc and are bent towards the direction close to the axis of the disc; vapor generated by mercury is collected through the exhaust groove, and the mercury vapor is discharged upwards, so that good contact between liquid mercury and the disc is ensured, and the influence of bubbles formed by mercury vapor collected at the bottom of the disc on electric conductivity is reduced; the liquefied mercury vapor is gathered through the reflux groove, negative pressure is formed when the mercury at the lower part of the heat conduction pipe is precooled and contracted, and the damping and the cylinder of the disc are matched with the sealing ring, so that the liquefied mercury is gathered into the space at the bottom of the disc again, the expansion volume change of the mercury at the bottom of the disc is accurate, and the controllability of the trigger temperature of the first electrode and the second electrode is further ensured by the matching elastic sheet.
Preferably, the lower end of the heat conduction pipe is fixedly connected with an elastic pipe, one end of the elastic pipe, which is far away from the heat conduction pipe, is communicated with a hollow elastic ball, and the elastic ball and the elastic pipe are filled with absolute ethyl alcohol; magnetic particles are added into the absolute ethyl alcohol; the elastic tube and the elastic ball are driven to swing when the screen vibrates, so that the absolute ethyl alcohol is filled into the elastic ball in a reciprocating mode under the action of centrifugal force, the vibration screening efficiency of the screen is further improved by matching the elastic ball, and the blockage of large-particle substances to the screen is reduced.
Preferably, the screen mesh is obliquely arranged, and an arc part bent towards the direction close to the lower end of the screen mesh is arranged at one end part in the heat conduction pipe screen mesh; a tension spring is sleeved on the arc-shaped part, one end of the tension spring is fixedly connected with the heat conduction pipe, and the other end of the tension spring is fixedly connected with the elastic ball; the inner diameter of the tension spring is larger than that of the heat conduction pipe; through arc portion cooperation extension spring and elasticity ball for the elasticity ball drives the extension spring and constantly stretches out and draws back and extrude the powder between extension spring and the heat pipe, increases the mobile circulation efficiency who remains the powder between heat pipe and the screen cloth simultaneously, increases the broken transportation screening efficiency of powder, reduces and blocks up, guarantees the powder of the different temperatures that the heat pipe fully contacted simultaneously and flows, increases the sensitivity of heat pipe.
Preferably, a chain wheel is rotatably connected to the position, corresponding to the inner periphery of the arc-shaped part, in the screen mesh, and teeth uniformly distributed on the periphery of the chain wheel are in clearance engagement with the tension spring; the top of the chain wheel is fixedly connected with fan blades; drive the tooth of meshing with it when constantly stretching out and drawing back through the extension spring, and then drive the continuous rotation of flabellum and blowback screen cloth, reduce the jam of a screen cloth, dredge remaining powder in the arc portion simultaneously, further increase the flow efficiency of powder in the heat pipe periphery, increase the sensitivity of heat pipe.
Preferably, the inside of the screen mesh at one side of the chain wheel, which is far away from the arc-shaped part, is hinged with a ratchet through a torsion spring, and the end part of the ratchet is inclined upwards and clamped between the adjacent teeth; through the unidirectional rotation of ratchet control sprocket for the extension spring is constantly drawn tooth when contracting, increases the broken transportation effect of radial vibration of extension spring, further subtracts the powder that the arc portion corresponds to and piles up the jam.
Preferably, the end part of the ratchet is fixedly connected with an elastic rope, and a group of bulges are uniformly distributed on the elastic rope; the other end of the elastic rope bypasses the rotating shaft of the fan blade and is fixedly connected with the elastic ball; the elastic rope is driven to stretch when the small ball swings, so that the protrusion continuously slides through the rotating shaft, the vibration of the elastic rope and the fan blade is increased, the shaking-off efficiency of the teeth and the powder adhered to the fan blade is further increased, and the meshing efficiency of the ratchets is ensured.
Preferably, the periphery of the tooth is provided with an arc-shaped groove matched with the outer diameter of the tension spring, and the inner wall of the arc-shaped groove is fixedly connected with an elastic plug ball through an elastic plate; through holes are formed in the middle of the elastic plate, and elastic rings penetrate through the adjacent through holes; through the cladding of arc wall to the extension spring, reduce the volume dislocation between extension spring and the tooth, expand the extension spring many times when going into and breaking away from the clearance between the extension spring through stopper ball card simultaneously, further increase the transmission efficiency of extension spring longitudinal fluctuation, increase the extension spring and tremble the efficiency of loosing and transporting the powder of caking.
The invention has the following beneficial effects:
1. according to the monitoring device for the lithium battery raw material grinding machine, the heat pipe extends to the inside of the screen, so that when powder formed by grinding of the grinding roller falls on the screen for screening, the temperature rise of the grinding powder rapidly drives the heat conduction pipe to rise, the first electrode is communicated with the second electrode after mercury expands, the alarm is controlled by the controller to send out beeps, an operator is reminded of adjusting grinding parameters of the grinding machine timely, the temperature of the grinding roller is reduced, and the lithium battery raw material is further reduced from ablation damage due to high temperature and fire hazard caused by ablation damage.
2. According to the monitoring device for the lithium battery raw material grinding machine, vapor generated by mercury is collected through the exhaust groove, and is upwards exhausted, so that good contact between liquid mercury and the disc is guaranteed, and the influence of bubbles formed by mercury vapor collected at the bottom of the disc on conductivity is reduced; gather liquefied mercury vapor through the backward flow groove, form the negative pressure simultaneously when the mercury precooling of heat pipe lower part contracts, cooperation sealing washer is to the damping and the cylinder of disc for the mercury after the liquefaction converges into disc bottom space again, guarantees that the expansion volume of disc bottom mercury changes accurately, and the controllability of a number of electric electrode and No. two electrode trigger temperatures is further guaranteed to the cooperation shell fragment.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a partial cross-sectional view of the present invention;
FIG. 3 is a cross-sectional view taken at A-A of FIG. 2;
FIG. 4 is a view from the direction B of FIG. 2;
FIG. 5 is a schematic view of the construction of the sprocket of the present invention;
in the figure: the grinding machine comprises a grinding machine body 1, a screen 11, a heat conduction pipe 12, a first electrode 13, a second electrode 14, a sliding column 15, a fixed disc 16, a motor 17, an electric push rod 18, a grinding chamber 19, a grinding roller 2, a scraping blade 21, a disc 22, a backflow groove 23, an exhaust groove 24, a cylinder 25, an elastic sheet 26, an elastic tube 27, an elastic ball 28, an arc-shaped part 29, a tension spring 3, a chain wheel 31, teeth 32, fan blades 33, a ratchet 34, an elastic rope 35, a protrusion 36, an arc-shaped groove 37, an elastic plate 38, a plug ball 39, a through hole 4 and an elastic ring 41.
Detailed Description
The present invention will be further described with reference to the following detailed description so that the technical means, the creation features, the achievement purposes and the effects of the present invention can be easily understood.
Example one
As shown in fig. 1 to 3, a monitoring device for a lithium battery raw material grinding machine according to an embodiment of the present invention includes a grinding machine body 1 and a screen 11; the screen mesh 11 is double-layer, an insulating L-shaped heat conduction pipe 12 is arranged at the hollow part of the screen mesh 11, and one end of the heat conduction pipe 12 penetrates through the side surface of the screen mesh 11 and extends upwards; the two ends of the heat conduction pipe 12 are closed, mercury is filled in the heat conduction pipe 12, and a first electrode 13 is fixedly connected to the inner wall of the heat conduction pipe 12 at a position below the lowest liquid level of the mercury; the top end of the heat conducting pipe 12 is fixedly connected with a second electrode 14, a first electrode 13 and the second electrode 14 are connected with a controller through wires, the grinder body 1 is fixedly connected with an alarm, and the alarm is connected with a power supply through wires and the controller; when the lithium battery grinding machine works, lithium battery raw materials need to be ground in the manufacturing process of a lithium battery in the prior art, the influence of grinding quality control on the performance of the lithium battery is crucial, but when the lithium battery raw materials are ground by the conventional grinding machine, the temperature of the grinding roller 2 is difficult to control accurately, the lithium battery raw materials are easy to ablate after the temperature of the grinding roller 2 which is rubbed violently for a long time rises, so that danger is caused, and meanwhile, the ground lithium battery raw materials are sintered and agglomerated due to overhigh temperature, so that the grinding quality of the lithium battery raw materials is seriously influenced, at the moment, the lithium battery grinding machine extends into the screen 11 through the heat conduction pipe 12, when powder formed by grinding of the grinding roller 2 falls onto the screen 11 for screening, the heat conduction pipe 12 is driven by the temperature rise of the grinding powder, so that the first electrode 13 is communicated with the second electrode 14 through an electric appliance after mercury expands, and then the alarm is controlled by the controller to emit buzzing sound, reminding operating personnel in time to adjust the grinding parameter of machine of grinding, reducing the temperature of grinding roller 2, further reducing the lithium cell raw materials because of the high temperature ablation damage and the conflagration hidden danger that causes from this.
Preferably, the top of one side of the grinder body 1 is connected with a fixed disc 16 in a sliding manner through a sliding column 15, the top of the fixed disc 16 is fixedly connected with a motor 17, and a group of electric push rods 18 is fixedly connected between the two sides of the fixed disc 16 and the top of the grinder body 1; a conical grinding chamber 19 communicated with the feed hopper is arranged at the bottom of the grinding machine body 1, an output shaft of the motor 17 extends into the grinding chamber 19, the output shaft of the motor 17 is fixedly connected with a conical grinding roller 2, and a group of elastic scraping blades 21 are uniformly distributed on the periphery of the top of the grinding roller 2; the electric push rod 18 is connected with a power supply through a controller; the first electrode 13 and the second electrode 14 are conducted after mercury expansion, the controller controls the fixed disc 16 and the motor 17 to ascend, further a gap between the grinding roller 2 and the inner wall of the grinding chamber 19 is increased, severe friction heat generation of the grinding roller 2 is reduced, meanwhile, raw materials adhered to the inner wall of the grinding chamber 19 through the scraping blade 21 are scraped, adhesion is reduced, air flow generated when the scraping blade 21 rotates is matched to quickly cool the grinding roller 2, and the quality influence of local high temperature of the grinding machine on lithium battery raw materials is further reduced.
Preferably, a conductive disc 22 is slidably connected to a position corresponding to the mercury liquid level in the heat conduction pipe 12, and an elastic sealing ring is fixedly sleeved in a sealing groove formed in the periphery of the disc 22; the conductive disc 22 is contacted with the liquid level at the top of the mercury, so that the mercury liquid level is prevented from generating ripples due to the vibration of the screen 11, and the error contact of the mercury and the second electrode 14 is reduced.
Preferably, the top of the disc 22 is provided with a conical reflux groove 23 at the center, and the reflux groove 23 penetrates through the disc 22; a group of conical exhaust grooves 24 are uniformly distributed on the circumference of the bottom surface of the disc 22, and the top of each exhaust groove 24 penetrates through the disc 22; porous cylinders 25 are embedded at the top of the exhaust groove 24 and the bottom of the reflux groove 23; a group of arc-shaped elastic sheets 26 are uniformly distributed on the circumference of the inner wall of the reflux groove 23, and the top ends of the elastic sheets 26 are higher than the top of the disc 22 and are bent towards the direction close to the axis of the disc 22; vapor generated by mercury is collected through the exhaust groove 24, and the mercury vapor is exhausted upwards, so that good contact between liquid mercury and the disc 22 is ensured, and the influence of bubbles formed by mercury vapor collected at the bottom of the disc 22 on electric conductivity is reduced; liquefied mercury vapor is gathered through the return groove 23, negative pressure is formed when mercury at the lower part of the heat conduction pipe 12 is precooled and contracted, and the liquefied mercury is gathered into the bottom space of the disc 22 again by matching with the damping of the sealing ring to the disc 22 and the cylinder 25, so that the expansion volume change of the mercury at the bottom of the disc 22 is accurate, and the controllability of the trigger temperature of the first electrode and the second electrode 14 is further ensured by matching with the elastic sheet 26.
As shown in fig. 3 to 4, preferably, the lower end of the heat pipe 12 is fixedly connected with an elastic tube 27, one end of the elastic tube 27 away from the heat pipe 12 is communicated with a hollow elastic ball 28, and the elastic ball 28 and the elastic tube 27 are filled with absolute ethyl alcohol; magnetic particles are added into the absolute ethyl alcohol; the elastic tube 27 and the elastic balls 28 are driven to swing when the screen mesh 11 vibrates, so that the absolute ethyl alcohol is filled into the elastic balls 28 in a reciprocating mode under the action of centrifugal force, the vibration screening efficiency of the screen mesh 11 is further improved by matching with the elastic balls 28, and the blockage of large-particle substances to the screen mesh 11 is reduced.
Preferably, the screen 11 is arranged obliquely, and one end portion of the heat transfer pipe 12 inside the screen 11 is provided with an arc portion 29 bent toward the lower end of the screen 11; the arc-shaped part 29 is sleeved with a tension spring 3, one end of the tension spring 3 is fixedly connected with the heat conduction pipe 12, and the other end of the tension spring 3 is fixedly connected with the elastic ball 28; the inner diameter of the tension spring 3 is larger than that of the heat conduction pipe 12; through arc portion 29 cooperation extension spring 3 and elastic ball 28 for elastic ball 28 drives the continuous extension of extension spring 3 and extrudees the powder between extension spring 3 and the heat pipe 12, increases the mobile circulation efficiency who remains the powder between heat pipe 12 and the screen cloth 11 simultaneously, increases the broken transportation screening efficiency of powder, reduces the jam, guarantees the powder of the different temperatures that heat pipe 12 fully contacted the flow simultaneously, increases the sensitivity of heat pipe 12.
Preferably, a chain wheel 31 is rotatably connected to a position corresponding to the inner periphery of the arc-shaped part 29 in the screen mesh 11, and teeth 32 uniformly distributed on the outer periphery of the chain wheel 31 are in clearance engagement with the tension spring 3; the top of the chain wheel 31 is fixedly connected with a fan blade 33; the tension spring 3 is used for driving the teeth 32 meshed with the tension spring to continuously stretch and retract, so that the fan blades 33 are driven to continuously rotate and blow back the screen mesh 11, the blockage of the screen mesh 11 is reduced, meanwhile, residual powder on the inner periphery of the arc-shaped part 29 is dredged, the flowing efficiency of the powder on the outer periphery of the heat pipe 12 is further increased, and the sensitivity of the heat pipe 12 is improved.
Preferably, the inside of the screen mesh 11 on the side of the chain wheel 31 far away from the arc-shaped part 29 is hinged with a ratchet 34 through a torsion spring, and the end part of the ratchet 34 inclines upwards and is clamped between the adjacent teeth 32; the ratchet 34 controls the one-way rotation of the chain wheel 31, so that the tension spring 3 continuously slides over the teeth 32 when contracting, the radial vibration crushing transportation effect of the tension spring 3 is increased, and the powder accumulation blockage corresponding to the arc-shaped part 29 is further reduced.
Preferably, an elastic rope 35 is fixedly connected to the end of the ratchet 34, and a group of protrusions 36 are uniformly distributed on the elastic rope 35; the other end of the elastic rope 35 is fixedly connected with the elastic ball 28 after bypassing the rotating shaft of the fan blade 33; the elastic rope 35 is driven to stretch when the small ball swings, so that the protrusion 36 continuously slides through the rotating shaft, the vibration of the elastic rope 35 and the fan blade 33 is increased, the shaking-off efficiency of powder adhered to the teeth 32 and the fan blade 33 is further increased, and the meshing efficiency of the ratchets 34 is ensured.
Example two
As shown in fig. 5, a first comparative example, in which another embodiment of the present invention is:
the periphery of the tooth 32 is provided with an arc-shaped groove 37 matched with the outer diameter of the tension spring 3, and the inner wall of the arc-shaped groove 37 is fixedly connected with an elastic plug ball 39 through an elastic plate 38; the middle part of the elastic plate 38 is provided with a through hole 4, and an elastic ring 41 penetrates through the adjacent through holes 4; through the cladding of arc wall 37 to extension spring 3, reduce the volume dislocation between extension spring 3 and the tooth 32, expand extension spring 3 many times when going into and breaking away from the clearance between extension spring 3 through stopper ball 39 card simultaneously, further increase the transmission efficiency of extension spring 3 longitudinal fluctuation, increase extension spring 3 and tremble the efficiency of loosing and transporting the powder of caking.
When the electric energy-saving grinding machine works, the heat conduction pipe 12 extends into the screen mesh 11, so that when powder formed by grinding of the grinding roller 2 falls on the screen mesh 11 for screening, the temperature of the grinding powder is quickly raised to drive the heat conduction pipe 12 to be raised, the first electrode 13 is electrically communicated with the second electrode 14 after mercury expands, the alarm is controlled by the controller to give out a buzzer, an operator is reminded to adjust grinding parameters of the grinding machine in time, the temperature of the grinding roller 2 is reduced, and the ablation damage of lithium battery raw materials due to high temperature and the fire hazard caused by the ablation are further reduced; after mercury expands, the first electrode 13 and the second electrode 14 are conducted, so that the controller controls the fixed disc 16 and the motor 17 to ascend, further the gap between the grinding roller 2 and the inner wall of the grinding chamber 19 is increased, severe friction heat generation of the grinding roller 2 is reduced, meanwhile, raw materials adhered to the inner wall of the grinding chamber 19 are scraped through the scraping blade 21, adhesion is reduced, air flow generated when the scraping blade 21 rotates is matched to quickly cool the grinding roller 2, and the influence of local high temperature of the grinding machine on the quality of lithium battery raw materials is further reduced; the conductive disc 22 is contacted with the liquid level at the top of the mercury, so that the mercury liquid level is prevented from generating ripples due to the vibration of the screen 11, and the error contact of the mercury and the second electrode 14 is reduced; vapor generated by mercury is collected through the exhaust groove 24, and the mercury vapor is exhausted upwards, so that good contact between liquid mercury and the disc 22 is ensured, and the influence of bubbles formed by mercury vapor collected at the bottom of the disc 22 on electric conductivity is reduced; liquefied mercury vapor is gathered through the return groove 23, meanwhile, negative pressure is formed when mercury at the lower part of the heat conduction pipe 12 precools and contracts, and the liquefied mercury is gathered into the bottom space of the disc 22 again by matching with the damping of the sealing ring to the disc 22 and the cylinder 25, so that the expansion volume change of the mercury at the bottom of the disc 22 is accurate, and the controllability of the trigger temperature of the first electrode and the second electrode 14 is further ensured by matching with the elastic sheet 26; the elastic tube 27 and the elastic ball 28 are driven to swing when the screen mesh 11 vibrates, so that the absolute ethyl alcohol is filled into the elastic ball 28 in a reciprocating manner under the action of centrifugal force, the vibration screening efficiency of the screen mesh 11 is further improved by matching with the elastic ball 28, and the blockage of large-particle substances on the screen mesh 11 is reduced; the arc-shaped part 29 is matched with the tension spring 3 and the elastic ball 28, so that the elastic ball 28 drives the tension spring 3 to continuously stretch and extrude the powder between the tension spring 3 and the heat conduction pipe 12, meanwhile, the flowing circulation efficiency of the residual powder between the heat conduction pipe 12 and the screen mesh 11 is increased, the crushing, conveying and screening efficiency of the powder is increased, the blockage is reduced, meanwhile, the heat conduction pipe 12 is ensured to be fully contacted with the flowing powder with different temperatures, and the sensitivity of the heat conduction pipe 12 is increased; the tension spring 3 is used for driving the teeth 32 engaged with the tension spring when continuously stretching and retracting, so that the fan blades 33 are driven to continuously rotate and blow back the screen mesh 11, the blockage of the top screen mesh 11 is reduced, meanwhile, the residual powder on the inner periphery of the arc-shaped part 29 is dredged, the flowing efficiency of the powder on the outer periphery of the heat conducting pipe 12 is further increased, and the sensitivity of the heat conducting pipe 12 is increased; the one-way rotation of the chain wheel 31 is controlled by the ratchet 34, so that the tension spring 3 continuously slides over the teeth 32 when being contracted, the radial vibration crushing and conveying effect of the tension spring 3 is improved, and powder accumulation and blockage corresponding to the arc-shaped part 29 are further reduced; the elastic rope 35 is driven to stretch when the small ball swings, so that the protrusion 36 continuously slides through the rotating shaft, the vibration of the elastic rope 35 and the fan blade 33 is increased, the shaking-off efficiency of powder adhered to the teeth 32 and the fan blade 33 is further increased, and the meshing efficiency of the ratchets 34 is ensured.
The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and so on.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are merely intended to facilitate the description of the present invention and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the scope of the present invention.
The foregoing shows and describes the general principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a monitoring devices for lithium cell raw materials grinds machine which characterized in that: comprising a mill body (1) and a screen (11); the screen (11) is double-layer, an insulated L-shaped heat conduction pipe (12) is arranged in the hollow part of the screen (11), one end of the heat conduction pipe (12) penetrates through the side surface of the screen (11) and extends upwards, and the other end of the heat conduction pipe (12) is positioned in the screen (11); the two ends of the heat conduction pipe (12) are sealed, mercury is filled in the heat conduction pipe (12), and a first electrode (13) is fixedly connected to the inner wall of the heat conduction pipe (12) at a position below the lowest liquid level of the mercury; the top end of the heat conduction pipe (12) is fixedly connected with a second electrode (14), the first electrode (13) and the second electrode (14) are connected with a controller through wires, the grinder body (1) is fixedly connected with an alarm, and the alarm is connected with a power supply through the wires and the controller;
the top of one side of the grinding machine body (1) is connected with a fixed disc (16) in a sliding mode through a sliding column (15), the top of the fixed disc (16) is fixedly connected with a motor (17), and a group of electric push rods (18) are fixedly connected between the two sides of the fixed disc (16) and the top of the grinding machine body (1); a conical grinding chamber (19) communicated with the feed hopper is arranged at the bottom of the grinding machine body (1), an output shaft of the motor (17) extends into the grinding chamber (19), the output shaft of the motor (17) is fixedly connected with a conical grinding roller (2) positioned in the grinding chamber (19), and a group of elastic scraping blades (21) are uniformly distributed on the periphery of the top of the grinding roller (2); the electric push rod (18) is connected with a power supply through a controller;
a conductive disc (22) is connected in the heat conduction pipe (12) in a sliding manner at a position corresponding to the liquid level of the mercury, and an elastic sealing ring is fixedly sleeved in a sealing groove formed in the periphery of the disc (22); a conical reflux groove (23) is formed in the center of the top of the disc (22), and the reflux groove (23) penetrates through the disc (22); a group of conical exhaust grooves (24) are uniformly distributed on the circumference of the bottom surface of the disc (22), and the top of each exhaust groove (24) penetrates through the disc (22); porous cylinders (25) are embedded in the top of the exhaust groove (24) and the bottom of the reflux groove (23); a group of arc-shaped elastic pieces (26) are evenly distributed on the circumference of the inner wall of the reflux groove (23), and the top ends of the elastic pieces (26) are higher than the top of the disc (22) and are bent towards the direction close to the axis of the disc (22).
2. The monitoring device for a lithium battery raw material grinding machine according to claim 1, characterized in that: the other end of the heat conduction pipe (12) is fixedly connected with an elastic pipe (27), one end, far away from the heat conduction pipe (12), of the elastic pipe (27) is communicated with a hollow elastic ball (28), and the elastic ball (28) and the elastic pipe (27) are filled with absolute ethyl alcohol; magnetic particles are added into the absolute ethyl alcohol.
3. The monitoring device for a lithium battery raw material grinding machine according to claim 2, characterized in that: the screen (11) is obliquely arranged, an arc-shaped part (29) which is bent towards the direction close to the lower end of the screen (11) is arranged on the part, located in the screen (11), of the heat conduction pipe (12), and the tail end, extending from the arc-shaped part (29), of the heat conduction pipe is fixedly connected with the elastic pipe (27); a tension spring (3) is sleeved on the arc-shaped part (29), one end of the tension spring (3) is fixedly connected with the heat conduction pipe (12), and the other end of the tension spring is fixedly connected with the elastic ball (28); the inner diameter of the tension spring (3) is larger than the outer diameter of the heat conduction pipe (12).
4. A monitoring device for a lithium battery raw material grinder as claimed in claim 3, wherein: a chain wheel (31) is rotatably connected to the position, corresponding to the inner periphery of the arc-shaped part (29), in the screen mesh (11), and teeth (32) uniformly distributed on the periphery of the chain wheel (31) are in clearance engagement with the tension spring (3); one side of the chain wheel (31) is fixedly connected with a fan blade (33).
5. The monitoring device for a lithium battery raw material grinding machine according to claim 4, characterized in that: the periphery of the tooth (32) is provided with an arc-shaped groove (37) matched with the outer diameter of the tension spring (3), and the inner wall of the arc-shaped groove (37) is fixedly connected with an elastic plug ball (39) through an elastic plate (38); the middle part of the elastic plate (38) is provided with a through hole (4), and an elastic ring (41) penetrates through the adjacent through holes (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210019298.5A CN114243864B (en) | 2022-01-10 | 2022-01-10 | Monitoring device for lithium battery raw material grinding machine |
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| CN202210019298.5A CN114243864B (en) | 2022-01-10 | 2022-01-10 | Monitoring device for lithium battery raw material grinding machine |
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| CN114243864B true CN114243864B (en) | 2022-08-19 |
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| CN202210019298.5A Active CN114243864B (en) | 2022-01-10 | 2022-01-10 | Monitoring device for lithium battery raw material grinding machine |
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| CN118403710A (en) * | 2024-05-15 | 2024-07-30 | 兴化市润禾食品有限公司 | Breaker for food processing |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203750612U (en) * | 2014-01-20 | 2014-08-06 | 山东科技大学 | Air-cooled planetary ball mill |
| CN205925936U (en) * | 2016-08-19 | 2017-02-08 | 广州艾蓓生物科技有限公司 | Cosmetic raw material grinds machine |
| CN206240426U (en) * | 2016-12-01 | 2017-06-13 | 内蒙古欣源石墨烯科技有限公司 | A kind of rate lithium ion battery negative material grinds agitating device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW592113U (en) * | 2002-07-23 | 2004-06-11 | Chung-Jen Pai | Opening/closing device for outlet of grinding device |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203750612U (en) * | 2014-01-20 | 2014-08-06 | 山东科技大学 | Air-cooled planetary ball mill |
| CN205925936U (en) * | 2016-08-19 | 2017-02-08 | 广州艾蓓生物科技有限公司 | Cosmetic raw material grinds machine |
| CN206240426U (en) * | 2016-12-01 | 2017-06-13 | 内蒙古欣源石墨烯科技有限公司 | A kind of rate lithium ion battery negative material grinds agitating device |
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