CN110215972A - One kind is from rate controlling ball-milling device and control method - Google Patents
One kind is from rate controlling ball-milling device and control method Download PDFInfo
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- CN110215972A CN110215972A CN201910654078.8A CN201910654078A CN110215972A CN 110215972 A CN110215972 A CN 110215972A CN 201910654078 A CN201910654078 A CN 201910654078A CN 110215972 A CN110215972 A CN 110215972A
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- rotating cylinder
- ball
- shell
- position sensor
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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
- B02C17/10—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 with one or a few disintegrating members arranged in the container
-
- 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
- B02C17/24—Driving mechanisms
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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
- B02C25/00—Control arrangements specially adapted for crushing or disintegrating
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The present invention provides one kind from rate controlling ball-milling device and control method, including rotating cylinder, shaft, bracket, belt, motor, controller and signal receiver, rotating cylinder is cylindrical type hollow, there are two shafts for both ends setting along the central axes of rotating cylinder, two shafts are separately positioned on two brackets, and rotating cylinder is suitable for rotating around the shaft；Motor drives drum rotation by belt；Motor is electrically connected with the controller, and controller can control the revolving speed of motor, and then control the revolving speed of rotating cylinder；Position sensor is set in rotating cylinder, position sensor includes shell, rotary shaft, stop part, spring and inductor, shell is connect by rotary shaft with rotating cylinder, stop part is suitable for limiting the rotation angle of shell, spring is suitable for support rotating cylinder and shell, and induction pieces are suitable for sending a signal to signal receiver in housing into rotation.It is of the present invention from rate controlling ball-milling device, can the motion mode effectively to abrasive media in ball mill detect, and the revolving speed of ball mill is reasonably adjusted.
Description
Technical field
The present invention relates to ball mill controlling technology of velocity field, in particular to one kind from rate controlling ball-milling device and control
Method processed.
Background technique
Ball mill is a kind of industry, agricultural and the common grinding machine such as manufacturing industry, is mainly used for after material is broken,
The key equipment crushed again typically, in the cylinder of ball mill is packed into a certain number of spheres as abrasive media.
Typically, ball mill includes dry grinding and two kinds of ball milling methods of wet-milling, when the rotary drum of ball mill, inertia,
Under the drive of the various ways such as centrifugal force and frictional force, sphere is moved up, and is reached after certain height under gravity
It leaves downwards, the sphere of whereabouts carries out chisel to the material in ball mill and hits, and continues to move up dig next time and hit, and is moving
Abrasive action is carried out to material during dynamic.
The revolving speed of ball mill is the important indicator for influencing grinding efficiency, and cylinder drives the height of sphere, and sphere digs hit downwards
Dynamics, the problem of and degree of grinding is closely related with revolving speed, and current ball grinding technique field is more paid close attention to, and
People are seeking always a kind of technology that can automatically control revolving speed.For example, Chinese application publication number is
The patent of invention of CN201510111449.X discloses one kind from rate controlling ball mill, by the strong magnetic that ball mill inner tube wall is arranged in
Item, spring and magneto sensor generate changes of magnetic field by attraction with abrasive media by strong magnetic stripe, and by magneto sensor into
Row induction obtains the automatic control that leaves state, realize to drum's speed of rotation of the abrasive media in ball mill.
But above-mentioned improvement should so have the defects that it is certain:
Abrasive media is necessary for iron or other magnetic metals, however in certain fields, define that abrasive media is nonmetallic
Material, such as in the nonmetallic industry such as kaolin, have hard requirement to whiteness, the abrasive medias such as iron ball cannot be used, and must
For the higher sphere of whiteness, such as porcelain ball or zirconium ball, but porcelain ball or zirconium ball etc. do not have magnetism, can not be again by magnetic
The revolving speed of variation control ball mill.
Therefore, it is necessary to develop a kind of devices of the ball mill cruise control of non magnetic sphere.
Summary of the invention
Problems solved by the invention is that existing non magnetic abrasive media ball-milling device cannot achieve from rate controlling function, nothing
Method reasonably controls the revolving speed of ball mill.
To solve the above problems, the present invention provides one kind from rate controlling ball-milling device, speed automation can be realized, including
Rotating cylinder, shaft, bracket, belt, motor, controller and signal receiver, the rotating cylinder is cylindrical type hollow, along the rotating cylinder
Central axes both ends setting there are two the shaft, two shafts are separately positioned on two brackets, and the rotating cylinder is suitable
It is rotated in around the shaft；
The motor drives the drum rotation by the belt；The motor is electrically connected with the controller, control
Device can control the revolving speed of the motor, and then control the revolving speed of the rotating cylinder；
Position sensor is set in the rotating cylinder, and the position sensor includes shell, rotary shaft, stop part, spring
With inductor, the shell is connect by the rotary shaft with the rotating cylinder, and the stop part is suitable for limiting the rotation of the shell
Gyration, the spring are suitable for supporting the rotating cylinder and the shell, and the inductor is suitable for sending in the housing into rotation
Signal is to the signal receiver.
Optionally, the shell is the hollow structure being fully sealed, and the inductor is arranged in the cavity of the shell.
It is of the present invention from rate controlling ball-milling device, can effectively the motion mode to abrasive media in ball mill carry out
Detection, and the revolving speed of ball mill is reasonably adjusted.
Optionally, the inductor includes pedestal, piezoelectric layer, insulating layer, upper electrode layer, lower electrode layer, the first magnet, electricity
Flow sensor and sender unit；
The pedestal is fixed on the inner wall of the shell, be provided on the pedestal piezoelectric layer, the insulating layer,
The upper electrode layer and the lower electrode layer, form the insulating layer-upper electrode layer-piezoelectric layer-lower electrode
Layer-insulating layer multilayer cantilever beam structure, the upper electrode layer and the lower electrode layer respectively with the current sensor
Electrical connection, the current sensor are electrically connected with the sender unit；The first magnet setting is separate in the cantilever beam
One end of the pedestal.
Optionally, the inductor further includes electric storage device, and the electric storage device is suitable for receiving and stores the piezoelectric layer
The electric energy of generation, the electric storage device is suitable for the current sensor and the sender unit is powered.
Optionally, when the shell is not contacted with abrasive media ball, the shell rotates under the action of the spring
To initial position, in the barrel of the rotating cylinder closest to the second magnet is fixed at first magnet positions, the cantilever at this time
Beam is in a vertical state.
Optionally, the rotating cylinder includes resigning plate, and the resigning plate is prominent to the outside of the rotating cylinder and in the rotating cylinder
Inside form avoiding space, the avoiding space is suitable for accommodating the position sensor.
Optionally, it is provided with infrared transmitter on the outside of the resigning plate, infrared remote receiver is provided on the bracket, it is described
Rotating cylinder often rotates a circle, and the infrared remote receiver receives the signal that the primary infrared transmitter is sent.
Optionally, multiple position sensors are provided in the rotating cylinder, multiple position sensors turn along described
The circumferentially-spaced arrangement of cylinder.
A kind of automatic control speed control method, for any of the above-described described from rate controlling ball-milling device, comprising:
Step S1, when ball mill works and rotates, real-time judge position sensor whether can be interrupted send activation signal with
Separating signal is to conclude that abrasive media ball is cascade or leaves formula movement in ball mill, is otherwise concluded in ball mill
Abrasive media ball is centrifugal movement, reduces motor speed, until the position sensor, which can be interrupted, sends the activation signal
With the separating signal；
Step S2, record infrared remote receiver repeatedly receives the time t of infrared transmitter, according to adjacent time point twice when
Between difference △ t and rotating cylinder radius r, calculate the revolving speed v of ball mill, specifically calculation formula be v=2 π r/ △ t；
Step S3, the time ta that the position sensor sends the activation signal is recorded, and sends the disengaging letter
Number time tb, wherein ta and tb is respectively positioned between adjacent time t twice；
Step S4, time difference △ ta, the △ ta=ta-t for calculating ta and t is calculated by current rotating speed v and time difference △ ta
Obtain the height ha when position sensor starts to contact abrasive media ball；Time difference △ tb, the △ tb=of tb and t is calculated again
The height when position sensor starts to be detached from abrasive media ball is calculated by current rotating speed v and time difference △ tb in tb-t
Spend hb；
Step S5, according to the current rotating speed v or contact height ha or described disengaging height hb, judge under current rotating speed
Abrasive media ball motion mode；
Step S6, it is controlled in conjunction with revolving speed of the Ball-milling Time to ball mill.
Control method of the present invention, the detectable motion mode for judging abrasive media in ball mill, and according to ball
The grinding particle size of time consuming reaction, reasonably controls the revolving speed of ball mill, controls the movement of abrasive media in ball mill
Mode.
Optionally, the control method further include:
When judgement show that the position sensor can be interrupted the transmission activation signal, school is carried out to the activation signal
It is right, judge whether the △ ta is greater than the half of the △ t, be to conclude that the activation signal is correct, otherwise concludes described connect
Signal error is touched, is repaired；
When judgement show that the position sensor can be interrupted the transmission separating signal, school is carried out to the separating signal
It is right, judge whether the △ tb is less than the half of the △ t, be to conclude that the separating signal is correct, otherwise concludes described de-
From signal error, repair.
Detailed description of the invention
Fig. 1 is ball mill schematic diagram one described in the embodiment of the present invention；
Fig. 2 is ball mill schematic diagram two described in the embodiment of the present invention；
Fig. 3 is rotating cylinder cross-sectional view one described in the embodiment of the present invention；
Fig. 4 is enlarged drawing at the I of Fig. 3；
Fig. 5 is inductor schematic diagram described in the embodiment of the present invention；
Fig. 6 is rotating cylinder cross-sectional view two described in the embodiment of the present invention；
Fig. 7 is enlarged drawing at the II of Fig. 6；
Fig. 8 is rotating cylinder inwall schematic diagram described in the embodiment of the present invention；
Fig. 9 is infrared transmitter described in the embodiment of the present invention and infrared remote receiver schematic diagram.
Description of symbols:
1- rotating cylinder, 11- gear ring, 12- barrel, 121- protrusion, 122- resigning plate, 123- avoiding space, the second magnetic of 124-
Body, 13- position sensor, 131- shell, 132- rotary shaft, 133- stop part, 134- spring, 135- inductor, 1351- base
Seat, 1352- piezoelectric layer, 1353- insulating layer, 1354- upper electrode layer, 1355- lower electrode layer, the first magnet of 1356-, 1357- electricity
Flow sensor, 1358- sender unit, 2- shaft, 3- bracket, 4- belt, 5- motor, 6- controller, 7- signal receiver.
Specific embodiment
To make the above purposes, features and advantages of the invention more obvious and understandable, with reference to the accompanying drawing to the present invention
Specific embodiment be described in detail.
At work, the working method of cylinder is to rotate about axis to be rotated to ball mill, and rotary shaft is located in cylinder
At axis.The revolving speed of ball mill is different, and the motion state of ball grinder interior abrasive media can be made different, be broadly divided into the formula of dropping
It moves, leave formula movement and centrifugal movement, wherein drop formula movement and leave the normal operating conditions that formula movement is ball mill,
When there is centrifugal movement, show that the revolving speed of ball mill is too fast, abrasive media can not preferably crush material.For
Different materials and different material particles and milling time should be closed to formula movement is dropped with formula movement is left
The selection of reason, this is required to the revolving speed by regulating and controlling ball mill to realize, the control for drum's speed of rotation is to influence ball milling effect
The important indicator of rate.
In the prior art, the revolving speed of ball mill is mostly the standard speed obtained by experiment, but in actual use process
In inevitably will appear certain deviation, and ball mill is mostly closed, and people can not intuitively obtain ball grinder interior grinding medium
The state of matter, therefore suitable revolving speed is unable to ensure to realize higher grinding efficiency.
One kind is present embodiments provided from rate controlling ball-milling device, in conjunction with shown in Fig. 1-Fig. 8, including rotating cylinder 1, shaft 2, bracket
3, belt 4, motor 5, controller 6 and signal receiver 7, rotating cylinder 1 are cylindrical type hollow, and the both ends along its central axes are provided with
Two shafts 2, two shafts 2 are separately positioned on two brackets 3, and bracket 3 supports two shafts 2, and rotating cylinder 1 is supported and taken off
From the ground, enable rotating cylinder 1 around the shaft 2 rotation.
Gear ring 11 is provided on the outer wall of rotating cylinder 1, preferably, gear ring 11 is arranged on the side of rotating cylinder 1, Fig. 1 institute
The right side of rotating cylinder 1 is arranged in the gear ring 11 shown.Be arranged with belt 4 on gear ring 11, belt 4 be set in simultaneously gear ring 11 with
On the belt pulley of motor 5, motor 5 drives rotating cylinder 1 to rotate by belt 4, and the revolving speed of rotating cylinder 1 is controlled by motor 5.
Motor 5 is electrically connected with controller 6, and controller 6 can control the revolving speed of motor 5, and then control the revolving speed of rotating cylinder 1.
Specifically, as shown in connection with fig. 3, rotating cylinder 1 includes barrel 12, and protrusion 121 is provided on the inner wall of barrel 12, usually and
Speech, protrusion 121 are arranged on liner plate (Fig. 3 is not drawn into), and protrusion 121 is prominent from the inner wall of barrel 12 to rotary shaft side, are turning
When cylinder 1 rotates, the function of driving abrasive media ball to move upwards can be played.
Specifically, in conjunction with shown in Fig. 3 and Fig. 4, position sensor 13 is arranged in the inside of barrel 12, is provided on barrel 12
Resigning plate 122, resigning plate 122 and 12 fixed seal connection of barrel, the inside of resigning plate 122 form avoiding space 123, and position passes
Sensor 13 is arranged at avoiding space 123.
Specifically, position sensor 13 includes shell 131, rotary shaft 132, stop part 133, spring 134 and inductor
135, shell 131 is hollow closed structure, shell 131 towards side rotating cylinder 1 inside be arcwall face, and one end of shell 131
It is provided with rotary shaft 132, shell 131 is fixedly connected by rotary shaft 132 with the rotation of barrel 12, and shell 131 can be around rotary shaft 132
It is rotated.
The side of shell 131 towards resigning plate 122 is provided with spring 134, and spring 134 is compressed spring, and the two of spring 134
End is fixedly connected with resigning plate 122 with shell 131 respectively, and 134 supporing shell 131 of spring is allowed to protrude from the inside of barrel 12
Face is preferably provided with stop part 133 on shell 131, the one end of shell 131 far from rotary shaft 132 is arranged in stop part 133,
Stop part 133 can be abutted against with other structures, prevent shell 131 from rotationally disengaging avoiding space 123.
In conjunction with shown in Fig. 3 and Fig. 4, when shell 131 is not by other active forces, spring 134 gives shell 131 obliquely
Power, stop part 133 and the clamping portion of barrel 12 abut against at this time, and shell 131 is in initial position, the initial bit of shell 131
Being set to has certain prominent structure to the inside of barrel 12, and the side of shell 131 towards 12 inside of barrel is cambered surface, without rib
Angle.
In conjunction with shown in Fig. 4 and Fig. 5, inductor 135 is arranged in shell 131, and inductor 135 includes pedestal 1351, piezoelectricity
Layer 1352, insulating layer 1353, upper electrode layer 1354, lower electrode layer 1355, the first magnet 1356, current sensor 1357 and signal
Transmitter 1358；One second magnet 124 is fixedly installed on the rotating cylinder.
It should be noted that shell 131 is completely enclosed structure, i.e., be hermetic water-proof structure inside shell 131, this be because
Wet ball-milling can be used at work for ball mill, and 131 inner inlet of shell damages inductor 135 in order to prevent, shell
Body 131 is completely enclosed structure.
Inductor 135 is the important sensing device of the present invention, and pedestal 1351 is fixed on the inner wall of shell 131, pedestal
It is provided with piezoelectric layer 1352, insulating layer 1353, upper electrode layer 1354 and lower electrode layer 1355 on 1351, forms insulating layer 1353-
The multilayer cantilever beam structure of upper electrode layer 1354- piezoelectric layer 1352- lower electrode layer 1355- insulating layer 1353, upper electrode layer 1354
It is electrically connected respectively with current sensor 1357 with lower electrode layer 1355, current sensor 1357 is electrically connected with sender unit 1358
It connects.
When shell 131 is in initial position, insulating layer 1353- upper electrode layer 1354- piezoelectric layer 1352- lower electrode layer
The cantilever beam structure that 1355- insulating layer 1353 is constituted is in a vertical state, and cantilever beam is provided with the far from one end of pedestal 1351
One magnet 1356 is fixed with the second magnet 124 close at the position of the first magnet 1356 in barrel 12, when shell 131 rotates,
Second magnet 124 is fixed on always on barrel 12.Preferably, in order to prevent the second magnet 124 be ground medium ball damage, second
Magnet 124 is arranged inside barrel 12, i.e., is arranged a cavity close at the first magnet 1356 in barrel 12, in the second magnet 124
It sets in the cavity.
When the ball mill work of the present embodiment, position sensor 13 can be with 12 common rotation of barrel, in conjunction with Fig. 3-Fig. 7 institute
Show, when sensor 13 is not in contact with abrasive media ball is arrived, under the action of spring 134, shell 131 is in original state, at this time
At the cantilever beam structure that insulating layer 1353- upper electrode layer 1354- piezoelectric layer 1352- lower electrode layer 1355- insulating layer 1353 is constituted
In vertical state, deformation occurs for piezoelectric layer 1352, is formed so upper electrode layer 1354 does not generate charge with lower electrode layer 1355
Electric current, current sensor 13 will not transmit and receive the signal to electric current to sender unit.With the rotation of barrel 12, position is passed
Sensor 13 is gradually rotated and is contacted with abrasive media ball, and when touching abrasive media ball, the gravity by abrasive media ball is made
With and rotate outward, spring 134 is gradually compressed, until be compressed to minimum state, shell 131 is in shown in Fig. 7 at this time
State, since there are mutual attractive force for the second magnet 124 and the first magnet 1356, under the action of magnetic attraction, insulating layer 1353-
The cantilever beam that upper electrode layer 1354- piezoelectric layer 1352- lower electrode layer 1355- insulating layer 1353 is constituted can bend, and press at this time
Electric layer 1352 generates charge since deformation occurs, and current sensor 1357 can detect that electric current generates, and send activation signal extremely
Activation signal is sent to signal receiver 7 by sender unit 1358, sender unit 1358, and signal receiver 7 believes contact
Number it is sent to controller, and concludes that position sensor 13 is ground medium ball at this time by activation signal and push down, therefore judgement is ground
The bottom position of grinding media ball heap.
When position sensor 13 follows barrel 12 to rotate, and when a certain height and abrasive media ball are detached from, position sensing
Device 13 is no longer influenced by the active force of abrasive media ball and is restored to initial position, and insulating layer 1353- upper electrode layer 1354- is pressed at this time
The cantilever beam that electric layer 1352- lower electrode layer 1355- insulating layer 1353 is constituted is restored to vertical state, and piezoelectric layer 1352 can be by
Deformed state returns to original state, and current sensor 1359 can detect current signal again, and sends separating signal to letter
Number transmitter 1358, sender unit 1358 will be disengaged from signal and be sent to signal receiver 7,6 electricity of signal receiver 7 and controller
Connection, signal receiver 7 will be disengaged from signal and be sent to controller 6, conclude that position sensor 13 is no longer at this time by separating signal
The contact for receiving abrasive media ball shows that abrasive media ball is detached from barrel 12 and tumbles downwards, judges the top of abrasive media ball heap
Portion position.
Preferably, as shown in connection with fig. 5, the stratiform knot that upper electrode layer 1354, piezoelectric layer 1352 and lower electrode layer 1355 are formed
It is provided with gap between structure body and the first magnet 1356, there are certain skies when first is that being bent to piezoelectric layer 1352 and electrode layer
Between, two charges that can also prevent electrode layer from generating receive the influence of the first magnet 1356, and then the inspection of impact position sensor 13
Survey result.
It can accurately obtain whether abrasive media ball in rotating cylinder 1 occurs centrifugal movement according to position sensor 13,
When centrifugal movement occurs for abrasive media ball, abrasive media ball extrusion position sensor 13 always, so when rotating cylinder 1 rotates a circle
The variation of electric signal will not occur for position sensor 13, and it is centrifugal clearly to know whether rotating cylinder 1 occurs by the process
Movement.
Preferably, as shown in connection with fig. 8, there are multiple position sensors 13 in ball mill, and multiple sensors 13 are in same height
Degree interval is arranged side by side, and abrasive media ball in rotating cylinder 1 can be prevented highly to be unevenly distributed during rotation, detection inaccuracy
The phenomenon that occur, and can pass through the detection simultaneously of multiple position sensors 13 as a result, being closed to the revolving speed of balling-drum 1
The control of reason.
Preferably, multiple position sensors 13 are set in the circumferential direction of rotating cylinder 1, and multiple position sensors 13 are along rotating cylinder
1 circumferentially-spaced arrangement, by multiple position sensors 13 in circumferential direction, can state to ball grinder interior abrasive media into
Row more accurate detection, can also effectively prevent the failure of single location sensor 13 and influence the control to drum's speed of rotation
System.
Specifically, the stratiform of the formation of upper electrode layer 1354- piezoelectric layer 1352- lower electrode layer 1355 is arranged in insulating layer 1353
Structure two sides can prevent from contacting in cantilever beam swing process with shell 131, and the charge that electrode layer is generated passes through shell
131 transfer, and cause the inaccuracy of detection.On the other hand, insulating layer 1353 also can play a buffer role in, and prevent electrode layer from colliding
It is damaged to shell 131.Preferably, insulating layer 1353 can be used the insulating materials such as rubber, elastoplastic and be made.
Preferably, it is provided with buffer layer before pedestal 1351 and shell 131, i.e. pedestal 1351 passes through buffer layer and shell
131 are fixedly connected, and the vibration that buffer layer can effectively prevent ball mill to generate at work drives piezoelectric layer 1352, and deformation occurs,
And it misleads to detection.Preferably, buffer layer can be constituted for spring or rubber etc..
Preferably, inductor 135 further includes having electric storage device, and the continuous deformation of piezoelectric layer 1352 in inductor 135 produces
Raw electric energy can be collected storage by electric storage device, and for supplying to current sensor 1357 and sender unit 1358
Electricity realizes the self-powered of inductor 135.Such design, shell 131 can be set to fully sealed position, also do not need guiding through electricity
Line is powered to inductor 135, is less that current sensor 1357 and sender unit 1358 are powered with the component by battery, no
Shell 131 must be dismantled.
It is provided in this embodiment from rate controlling ball-milling device, compared with the existing technology, nonmagnetic abrasive media ball can also lead to
The position sensor detection of the present embodiment is crossed, and is sent to controller, more rationally effective control is carried out to the revolving speed of ball mill
System.
Preferably, as shown in connection with fig. 9, it is provided with infrared transmitter 14 on the lateral wall of resigning plate 122, is set on ball mill
It is equipped with infrared remote receiver 15, the position that ball mill does not rotate is arranged in infrared remote receiver 15, and the bracket 3 of ball mill is such as arranged in
On, when infrared transmitter 14 follows the rotation of rotating cylinder 1 to certain position, infrared remote receiver 15 can receive the hair of infrared transmitter 14
Signal out, the position that recording drum 1 rotates.After the rotation of rotating cylinder 1 is turned around, infrared remote receiver 15 receives infrared transmitter again
When the signal of 14 sendings, indicates that the rotation of rotating cylinder 1 is turned around, by interval time twice, the revolving speed of rotating cylinder 1 can be calculated.
Based on described above, the present embodiment additionally provides a kind of automatic control speed control method, includes the following steps:
Step S1, when ball mill works and rotates, whether real-time judge position sensor 13 can be interrupted transmission activation signal
It with separating signal, is to conclude that abrasive media ball is cascade or leaves formula movement in ball mill, otherwise concludes ball mill
Interior abrasive media ball is centrifugal movement, reduces motor speed, sends activation signal until position sensor 13 can be interrupted and takes off
From signal；
Step S2, time t1, t2, t3 ... for recording more than 15 reception infrared transmitters 14 of infrared remote receiver, according to adjacent
The radius r of the time difference △ t Yu rotating cylinder 1 at time point twice calculates revolving speed v1, v2, v3 ... of every circle ball mill, specifically calculates
Formula is v=2 π r/ △ t；
Step S3, position recording sensor 13 sends time ta1, ta2, ta3 ... and separating signal of activation signal
Time tb1, tb2, tb3 ..., wherein ta1 and tb1 are respectively positioned between t1 and t2, and ta2 and tb2 are respectively positioned between t2 and t3；
Step S4, time difference △ ta, the △ ta=ta-t for calculating ta and t is calculated by current rotating speed v and time difference △ ta
Obtain height ha when position sensor 13 starts to contact abrasive media ball；Time difference △ tb, the △ tb=of tb and t is calculated again
Height when position sensor 13 starts to be detached from abrasive media ball is calculated by current rotating speed v and time difference △ tb in tb-t
hb；
Specifically, the calculating process of ha are as follows: first calculate contact angle Da, Da=360- ((360v △ ta)/(2 π r)) sentences
Whether disconnected Da is then ha=r (1-cosDa) less than 90 degree；Otherwise continue to judge whether Da is greater than 90 degree, be then ha=r (1+
CosDa), otherwise ha=r；
Specifically, the calculating process of hb are as follows: first calculate contact angle Db, Db=(360v △ tb)/(2 in 90 degree, are then hb
=r (1+cosDb), otherwise hb=r；
Step S5, according to current rotating speed v or contact height ha or it is detached from height hb, judges the abrasive media under current rotating speed
Ball motion mode；
Specifically, the movement side of abrasive media at this time is judged according to the relationship that contact height ha and disengaging leave height value h0
Formula rushes down the formula of falling or leaves formula, and the height value h0 that leaves is by experiment (same abrasive media ball filling rate and rotating cylinder
Radius) the abrasive media critical drop point height value that is changed into the formula of leaving by rushing down the formula of falling that obtains, whether small judge to be detached from height hb
It is to conclude that abrasive media ball is cascade at this time in leaving height value h0, otherwise concludes that abrasive media ball is throwing at this time
Fall formula movement；
Specifically, judging the motion mode of abrasive media at this time with the relationship for leaving height value h1 according to disengaging height hb is
It rushes down the formula of falling and still leaves formula, the height value h1 that leaves is by experiment (same abrasive media ball filling rate and rotating cylinder radius)
The critical altitude value that the abrasive media of acquisition is changed into the formula of leaving by rushing down the formula of falling judges whether disengaging height hb is greater than and leaves height
Value h1 is to conclude that abrasive media ball is to leave formula movement at this time, otherwise concludes that abrasive media ball is cascade at this time；
Specifically, critical altitude value is directly related with the revolving speed of rotating cylinder, according to current rotating speed v and can also leave tachometer value v0
The motion mode of relationship judgement abrasive media at this time rush down the formula of falling or leave formula, similarly, the tachometer value v0 that leaves is
Throwing is changed by cascade by the abrasive media that experiment (same abrasive media ball filling rate and rotating cylinder radius) obtains
The critical speed value for falling formula movement, whether the revolving speed v for judging at this time, which is greater than, leaves tachometer value v0 (this step has determined grinding medium
Matter ball is not belonging to centrifugal movement), it is to conclude that abrasive media ball is to leave formula movement at this time, otherwise concludes abrasive media at this time
Ball is cascade；
Step S6, revolving speed is controlled in conjunction with Ball-milling Time, it is however generally that, it is preferably used in time early period of material ball milling
The mode for leaving formula ball milling is gradually converted into rushing down the mode for falling formula ball milling, the present embodiment passes through reality with the reduction of material size
When detection ball mill in abrasive media ball motion mode, and revolving speed is controlled in different time, and pass through step in real time
The motion mode of S5 detection abrasive media ball.
Preferably, the control method of the present embodiment further include:
When judgement show that position sensor 13 can be interrupted transmission activation signal and separating signal, school is carried out to activation signal
It is right, judge whether △ ta is greater than the half of △ t, be, conclude signal transmission is activation signal, and otherwise assertive signal receives
Mistake repairs；
When judgement show that position sensor 13 can be interrupted transmission activation signal and separating signal, school is carried out to separating signal
It is right, judge whether △ tb is less than the half of △ t, be, conclude signal transmission is separating signal, and otherwise assertive signal receives
Mistake repairs.
In general, separating signal only appears in rotating cylinder left hand half when rotating cylinder is according to rotating clockwise, therefore it is detached from letter
Number time point sent should be period when position sensor goes to rotating cylinder left hand half；Similarly, activation signal only can
It appears on the right side of rotating cylinder on one side of something, when the time point that activation signal is sent should be that position sensor goes to half of on the right side of rotating cylinder
Period further judges that whether activation signal is correct with separating signal, improves the accuracy of detection by the time.
Although the disclosure discloses as above, the protection scope of the disclosure is not limited only to this.Those skilled in the art are not
Under the premise of being detached from spirit and scope of the present disclosure, it can make various changes and modify, these changes will fall into this with modification
The protection scope of invention.
Claims (10)
1. one kind from rate controlling ball-milling device, can be realized speed automation, which is characterized in that including rotating cylinder (1), shaft (2),
Bracket (3), belt (4), motor (5), controller (6) and signal receiver (7), the rotating cylinder (1) are cylindrical type hollow, edge
There are two the shaft (2), two shafts (2) are separately positioned on two for the both ends setting of the central axes of the rotating cylinder (1)
On bracket (3), the rotating cylinder (1) is suitable for rotating around the shaft (2)；
The motor (5) drives rotating cylinder (1) rotation by the belt (4)；The motor (5) and the controller (6)
Electrical connection, controller (6) can control the revolving speed of the motor (5), and then control the revolving speed of the rotating cylinder (1)；
Position sensor (13) are set in the rotating cylinder (1), the position sensor (13) includes shell (131), rotary shaft
(132), stop part (133), spring (134) and inductor (135), the shell (131) pass through the rotary shaft (132) and institute
Rotating cylinder (1) connection is stated, the stop part (133) is suitable for limiting the rotation angle of the shell (131), and the spring (134) is suitable
In supporting the rotating cylinder (1) and the shell (131), the inductor (135) is suitable for sending when the shell (131) rotate
Signal is to the signal receiver (7).
2. according to claim 1 from rate controlling ball-milling device, which is characterized in that the shell (131) is fully sealed
Hollow structure, the inductor (135) are arranged in the cavity of the shell (131).
3. according to claim 1 from rate controlling ball-milling device, which is characterized in that the inductor (135) includes pedestal
(1351), piezoelectric layer (1352), insulating layer (1353), upper electrode layer (1354), lower electrode layer (1355), the first magnet
(1356), current sensor (1357) and sender unit (1358)；
The pedestal (1351) is fixed on the inner wall of the shell (131), is provided with the piezoelectricity on the pedestal (1351)
Layer (1352), the insulating layer (1353), the upper electrode layer (1354) and the lower electrode layer (1355), form the insulation
Layer (1353)-upper electrode layer (the 1354)-piezoelectric layer (the 1352)-lower electrode layer (1355)-described insulating layer
(1353) multilayer cantilever beam structure, the upper electrode layer (1354) and the lower electrode layer (1355) are passed with the electric current respectively
Sensor (1357) electrical connection, the current sensor (1357) are electrically connected with the sender unit (1358)；First magnetic
Body (1356) is arranged in the one end of the cantilever beam far from the pedestal (1351).
4. according to claim 3 from rate controlling ball-milling device, which is characterized in that the inductor (135) further includes storage
Device, the electric storage device are suitable for receiving and storing the electric energy of the piezoelectric layer (1352) generation, and the electric storage device is suitable for
The current sensor (1357) and the sender unit (1358) power.
5. according to claim 3 from rate controlling ball-milling device, which is characterized in that the shell (131) not with grinding medium
When matter ball contacts, the shell (131) rotates under the action of the spring (134) to initial position, in the rotating cylinder (1)
Barrel (12) fixes the second magnet (124) at closest first magnet (1356) position, and the cantilever beam is in perpendicular at this time
Straight state.
6. according to claim 1 from rate controlling ball-milling device, which is characterized in that the rotating cylinder (1) includes resigning plate
(122), the outside of resigning plate (122) the Xiang Suoshu rotating cylinder (1) is prominent and forms avoiding space in the inside of the rotating cylinder (1)
(123), the avoiding space (123) is suitable for accommodating the position sensor (135).
7. according to claim 6 from rate controlling ball-milling device, which is characterized in that be provided on the outside of the resigning plate (122)
Infrared transmitter (14) is provided with infrared remote receiver (15) on the bracket (3), and the rotating cylinder (1) often rotates a circle, described red
Outer receiver (15) receives the signal that the primary infrared transmitter (14) sends.
8. according to claim 1 from rate controlling ball-milling device, which is characterized in that be provided with multiple institutes in the rotating cylinder (1)
It states position sensor (13), circumferentially-spaced arrangement of multiple position sensors (13) along the rotating cylinder (1).
9. a kind of automatic control speed control method, any described from rate controlling ball-milling device for the claims 1-8, feature exists
In, comprising:
Step S1, when ball mill works and rotates, whether real-time judge position sensor, which can be interrupted, sends activation signal and is detached from
Signal is to conclude that abrasive media ball is cascade or leaves formula movement in ball mill, otherwise concludes grinding in ball mill
Medium ball is centrifugal movement, reduces motor speed, until the position sensor, which can be interrupted, sends the activation signal and institute
State separating signal；
Step S2, record infrared remote receiver repeatedly receives the time t of infrared transmitter, according to the time difference at adjacent time point twice
The radius r of △ t and rotating cylinder calculate the revolving speed v of ball mill, and specifically calculation formula is v=2 π r/ △ t；
Step S3, the time ta that the position sensor sends the activation signal is recorded, and sends the separating signal
Time tb, wherein ta and tb is respectively positioned between adjacent time t twice；
Step S4, time difference △ ta, the △ ta=ta-t for calculating ta and t, is calculated by current rotating speed v and time difference △ ta
The position sensor starts to contact height ha when abrasive media ball；Time difference △ tb, the △ tb=tb- of tb and t is calculated again
The height when position sensor starts to be detached from abrasive media ball is calculated by current rotating speed v and time difference △ tb in t
hb；
Step S5, according to the current rotating speed v or contact height ha or described disengaging height hb, judge the grinding under current rotating speed
Medium ball motion mode；
Step S6, it is controlled in conjunction with revolving speed of the Ball-milling Time to ball mill.
10. automatic control speed control method according to claim 9, which is characterized in that the control method further include:
When judgement show that the position sensor can be interrupted the transmission activation signal, the activation signal is proofreaded,
Judge whether the △ ta is greater than the half of the △ t, be to conclude that the activation signal is correct, otherwise concludes the contact letter
Number mistake, repairs；
When judgement show that the position sensor can be interrupted the transmission separating signal, the separating signal is proofreaded,
Judge whether the △ tb is less than the half of the △ t, be to conclude that the separating signal is correct, otherwise concludes the disengaging letter
Number mistake, repairs.
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| CN201910654078.8A CN110215972B (en) | 2019-07-19 | 2019-07-19 | Automatic speed-controlled ball milling device |
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| CN201910654078.8A CN110215972B (en) | 2019-07-19 | 2019-07-19 | Automatic speed-controlled ball milling device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110694748A (en) * | 2019-11-01 | 2020-01-17 | 栾川县金鼎矿业有限公司 | High-energy-efficiency ball mill and rotating speed control method thereof |
| CN113499717A (en) * | 2021-06-30 | 2021-10-15 | 江苏亚飞炭素有限公司 | Ball-milling wet mixing equipment for producing lithium battery anode material precursor |
| CN115448715A (en) * | 2022-07-25 | 2022-12-09 | 矿冶科技集团有限公司 | Method for manufacturing dry-pressed sintered ferrite permanent magnet material |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102179278A (en) * | 2011-03-28 | 2011-09-14 | 山东理工大学 | Automatic speed regulation system and method for ball milling machine |
| CN104069917A (en) * | 2014-07-01 | 2014-10-01 | 山东理工大学 | Ball mill impact force detection device and impact force detection and ball mill speed regulation method |
| CN105396681A (en) * | 2015-12-24 | 2016-03-16 | 山东理工大学 | Swelling detecting device and pre-swelling control method for piezoelectric type compound tube mill |
| CN106179633A (en) * | 2016-07-28 | 2016-12-07 | 洛阳矿山机械工程设计研究院有限责任公司 | A kind of method of adjustment of grinding machine intelligence automatic speed regulation system |
| US20170036213A1 (en) * | 2014-04-28 | 2017-02-09 | Outotec (Finland) Oy | A method and an arrangement for determining a degree of fullness of a large grinding mill drum, and a large grinding mill drum |
| CN109821619A (en) * | 2019-03-11 | 2019-05-31 | 合肥水泥研究设计院有限公司 | A kind of ball mill load measuring device based on piezoelectric transducer and wireless transmission |
-
2019
- 2019-07-19 CN CN201910654078.8A patent/CN110215972B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102179278A (en) * | 2011-03-28 | 2011-09-14 | 山东理工大学 | Automatic speed regulation system and method for ball milling machine |
| US20170036213A1 (en) * | 2014-04-28 | 2017-02-09 | Outotec (Finland) Oy | A method and an arrangement for determining a degree of fullness of a large grinding mill drum, and a large grinding mill drum |
| CN104069917A (en) * | 2014-07-01 | 2014-10-01 | 山东理工大学 | Ball mill impact force detection device and impact force detection and ball mill speed regulation method |
| CN105396681A (en) * | 2015-12-24 | 2016-03-16 | 山东理工大学 | Swelling detecting device and pre-swelling control method for piezoelectric type compound tube mill |
| CN106179633A (en) * | 2016-07-28 | 2016-12-07 | 洛阳矿山机械工程设计研究院有限责任公司 | A kind of method of adjustment of grinding machine intelligence automatic speed regulation system |
| CN109821619A (en) * | 2019-03-11 | 2019-05-31 | 合肥水泥研究设计院有限公司 | A kind of ball mill load measuring device based on piezoelectric transducer and wireless transmission |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110694748A (en) * | 2019-11-01 | 2020-01-17 | 栾川县金鼎矿业有限公司 | High-energy-efficiency ball mill and rotating speed control method thereof |
| CN113499717A (en) * | 2021-06-30 | 2021-10-15 | 江苏亚飞炭素有限公司 | Ball-milling wet mixing equipment for producing lithium battery anode material precursor |
| CN113499717B (en) * | 2021-06-30 | 2023-09-15 | 江苏亚飞炭素有限公司 | Ball milling wet mixing equipment for producing lithium battery anode material precursor |
| CN115448715A (en) * | 2022-07-25 | 2022-12-09 | 矿冶科技集团有限公司 | Method for manufacturing dry-pressed sintered ferrite permanent magnet material |
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| CN110215972B (en) | 2020-11-27 |
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