CN112169914B - Method and system for automatically adjusting gap of grinding disc - Google Patents
Method and system for automatically adjusting gap of grinding disc Download PDFInfo
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- CN112169914B CN112169914B CN202011084805.0A CN202011084805A CN112169914B CN 112169914 B CN112169914 B CN 112169914B CN 202011084805 A CN202011084805 A CN 202011084805A CN 112169914 B CN112169914 B CN 112169914B
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- grinding disc
- millstone
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- rotating speed
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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
- B02C7/00—Crushing or disintegrating by disc mills
- B02C7/11—Details
- B02C7/14—Adjusting, applying pressure to, or controlling distance between, 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
- B02C25/00—Control arrangements specially adapted for crushing or disintegrating
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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
- B02C7/00—Crushing or disintegrating by disc mills
- B02C7/11—Details
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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
- B02C7/00—Crushing or disintegrating by disc mills
- B02C7/11—Details
- B02C7/16—Driving mechanisms
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
- G01N2001/2866—Grinding or homogeneising
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Abstract
The invention discloses a method for automatically adjusting clearance of a grinding disc, which is characterized in that before a disc grinder is used, a movable grinding disc is driven to rotate by a movable grinding disc driving motor; meanwhile, the grinding disc translation device realizes the movement of the movable grinding disc or the static grinding disc in the horizontal direction, the rotating speed of the movable grinding disc is measured in real time through the speed measuring device, and when the rotating speed of the movable grinding disc is reduced to a set threshold value after the movable grinding disc is contacted with the static grinding disc, the rotating speed is used as the zero point calibration; the movable millstone or the static millstone is driven by the millstone translation device, so that a preset gap value is achieved between the movable millstone and the static millstone. The adjusting method for the clearance of the grinding disc provided by the invention realizes zero point calibration and particle size adjustment before use of the disc grinder in an automatic mode, improves the efficiency and can ensure the precision of the particle size of the sample.
Description
Technical Field
The invention relates to the field of solid mineral detection, in particular to a method and a system for adjusting a millstone clearance of a disc crusher.
Background
In the use process of the disc grinder (or disc grinder), the clearance between the dynamic grinding disc and the static grinding disc can be influenced by the following factors: the rigidity of the equipment itself, the influence of temperature variation, the abrasion of the grinding disc, the change of the use environment and the like can cause the gap to change, because the fine grinding particles are smaller (the minimum granularity is 0.08 mm), the accuracy requirement on the gap of the grinding disc is higher, in order to ensure the accuracy of the gap during grinding, the gap between the grinding discs is usually detected and regulated manually before the disc grinder is used, because the regulation is carried out manually by manpower, the regulation workload is large, the time consumption is long, human uncontrollable factors exist, and meanwhile, because the particle size of certain samples is 0.08mm, the distance between the movable grinding disc and the static grinding disc is difficult to accurately regulate after the manual zero setting at the moment, so that the use requirement is met.
Therefore, a method for automatically adjusting zero point of a grinding disc, and a method and a system for automatically adjusting clearance of the grinding disc are targets pursued by those skilled in the art.
Disclosure of Invention
The invention provides a method and a system for adjusting the clearance of a grinding disc, which aim to solve the technical problems that the clearance of the grinding disc needs to be checked before the use of the grinding disc grinder in the prior art, the work load is large, the time consumption is long and the accuracy is low due to the fact that the clearance between the grinding discs is adjusted manually, and the grinding disc detection and adjustment of the grinding disc grinder before the use of the grinding disc grinder are realized in an automatic mode, so that the working efficiency of the grinding disc grinder is improved, and the accuracy of the particle size of a sample is improved.
To achieve the above object, the present invention provides a method for automatically adjusting a gap of a grinding disc, including:
starting a movable millstone driving device to drive the movable millstone to rotate;
starting a millstone translation device to realize that the movable millstone or/and the static millstone move the two millstones in opposite directions in the horizontal direction;
measuring the rotating speed of the movable millstone in real time through a speed measuring device;
when the rotating speed of the movable millstone is reduced to a set threshold value after the movable millstone is contacted with the static millstone, the movable millstone driving device stops rotating and the millstone translation device stops moving to be used as the calibration of a zero point;
the movable millstone or/and the static millstone are driven to move back by the millstone translation device, so that the distance between the movable millstone and the static millstone reaches the required particle size value.
Before each use, the disc grinder controls the movable grinding disc driving motor and the grinding disc translation device to automatically zero and adjust the gap between the movable grinding disc and the static grinding disc through the control system, so that the disc grinder is simple and convenient to operate, saves time and labor, and improves the accuracy of product detection.
The invention relates to a method for automatically adjusting a clearance of a grinding disc, which comprises the following steps as a preferable mode:
s1, a control system starts a movable millstone driving device to enable the movable millstone to rotate forwards, a speed measuring device tests the rotating speed of the movable millstone in real time and transmits the rotating speed to the control system, and when the control system judges that the rotating speed of the movable millstone is stable, the step S2 is carried out;
s2, the control system starts a grinding disc translation device to enable the movable grinding disc or/and the static grinding disc to move towards the static grinding disc or/and the movable grinding disc, and the speed measuring device tests the rotating speed of the movable grinding disc in real time and transmits the rotating speed to the control system;
s3, when the movable millstone and the static millstone start to be contacted, the rotation speed of the movable millstone is reduced along with the increase of friction force, the speed measuring device detects the rotation speed of the movable millstone in real time and transmits the rotation speed to the control system, and when the control system judges that the rotation speed is lower than a set rotation speed threshold value, the step S4 is carried out;
s4, stopping horizontal movement of the grinding disc translation device, stopping rotation of the grinding disc by a movable grinding disc driving motor, and entering a step S5 after stopping rotation of the movable grinding disc;
and S5, the control system sends a movement instruction and a displacement instruction to the millstone translation device according to the input particle size, and the millstone translation device drives the movable millstone or the static millstone to move to a position set by the displacement instruction in a direction away from the static millstone or the movable millstone.
In the method for automatically adjusting the clearance of the grinding disc, in the preferred mode, the rotation speed threshold in the step S3 is that the rotation speed in the step S1 is reduced by at least 2r/min, namely, the rotation speed is lower than the initial rotation speed by 2 rotations.
The invention further provides an automatic clearance adjusting system for the grinding disc, which is characterized in that: the rotary grinding disc device comprises a static grinding disc arranged on a disc grinder, a movable grinding disc with a working surface opposite to the working surface of the static grinding disc, a speed measuring device arranged on the movable grinding disc and used for measuring the rotating speed of the movable grinding disc, a grinding disc translation device arranged on the disc grinder and used for driving the movable grinding disc or/and the static grinding disc to move along the horizontal direction, a movable grinding disc driving device arranged on the disc grinder and used for driving the movable grinding disc to rotate, and a control system used for controlling the movement of the grinding disc translation device and the movable grinding disc driving device.
According to the automatic clearance adjusting system for the grinding disc, the movable grinding disc driving device comprises a rotating shaft connected with the movable grinding disc, a movable grinding disc driving motor and a transmission device connected between the rotating shaft and the movable grinding disc driving motor.
According to the automatic clearance adjusting system for the grinding disc, the rotating shaft is arranged on the rotating shaft supporting seat in an optimal mode, and the grinding disc translation device is connected with the rotating shaft supporting seat.
According to the automatic clearance adjusting system for the grinding disc, as an optimal mode, the grinding disc translation device comprises: the servo motor is connected with the connecting piece through a screw rod and a nut, and an adjusting bearing seat is used for supporting one end of the screw rod.
According to the automatic clearance adjusting system for the grinding disc, as a preferable mode, or the feeding port end of the static grinding disc is connected with the feeding mechanism, and the grinding disc translation device is connected with the feeding mechanism and is used for driving the static grinding disc to horizontally move.
The millstone translation device comprises: the guide rail is positioned below the feeding mechanism, the upper surface of a connecting piece is connected with the feeding mechanism, a sliding block matched with the guide rail is arranged below the connecting piece, a servo motor is connected with the connecting piece through a screw rod and a screw nut, and an adjusting bearing seat is used for supporting one end of the screw rod.
The invention relates to an automatic clearance adjusting system for a grinding disc, which is characterized in that a speed measuring device is an encoder.
An encoder is a device that compiles, converts, or converts a signal (e.g., a bit stream) or data into a signal form that can be used for communication, transmission, and storage. The encoder converts angular displacement, referred to as a code wheel, or linear displacement, referred to as a code scale, into an electrical signal. Encoders can be classified into contact type and non-contact type according to the read-out mode; encoders can be classified into incremental and absolute types according to the operating principle. The incremental encoder converts the displacement into a periodic electric signal, and then converts the electric signal into counting pulses, and the number of the pulses is used for representing the size of the displacement. Each position of the absolute encoder corresponds to a determined digital code, so that its indication is only related to the start and end positions of the measurement, and not to the intermediate course of the measurement.
According to the adjusting system for automatically adjusting the clearance of the grinding disc, the output frequency of the frequency converter of the driving motor of the movable grinding disc is 10-20 Hz.
By adopting the technical scheme, the speed measuring device for testing the rotating speed of the movable millstone is arranged on the movable millstone, the millstone translation device for driving the movable millstone or/and the static millstone to move along the horizontal direction and the movable millstone driving device for driving the movable millstone to rotate are arranged on the disc crusher. The control system controls the movable grinding disc driving motor to drive the movable grinding disc to rotate, and simultaneously controls the grinding disc translation device to translate so that one grinding disc is close to the other grinding disc, when the movable grinding disc is contacted with the static grinding disc, the rotating speed of the movable grinding disc is reduced due to friction resistance, and when the rotating speed is lower than a set rotating speed threshold value, the movable grinding disc and the static grinding disc reach the zero point position, so that the zero point position can be determined.
Drawings
FIG. 1 is a flow chart of a method for automatically adjusting a gap of a grinding disc according to the invention;
FIG. 2 is a schematic view of a first embodiment of an automatic clearance adjustment system for a grinding disc according to the present invention;
FIG. 3 is a schematic view of the overall structure of a disc pulverizer employing the disc automatic gap adjustment system of the present invention;
FIG. 4 is a schematic view of the structure of the slide blocks and guide rails in the pan translation device of the pan automatic gap adjustment system of the present invention;
FIG. 5 is a schematic structural view of a second embodiment of an automatic clearance adjustment system for a grinding disc according to the present invention;
fig. 6 is a schematic structural view of a third embodiment of the automatic clearance adjustment system for a grinding disc according to the present invention.
Reference numerals: the grinding device comprises a control system 100, a speed measuring device 1, a grinding mechanism 2, a grinding cavity 21, a feed inlet 211, a discharge outlet 213, a static grinding disc 22, a movable grinding disc 23, a rotating shaft 24, a grinding disc translation device 25, a sliding block 251, a screw 252, a screw 253, an adjusting bearing seat 254, a coupler 255, a servo motor 256, a guide rail 257, a connecting piece 258, an end plate 2581, a rotating shaft supporting seat 26, a driving device 3, a driving motor 31, a belt transmission device 32, a receiving mechanism 4, a feed mechanism 5 and a frame 6.
Detailed Description
Specific embodiments of the present invention will be described below with reference to the drawings.
In a first embodiment, as shown in fig. 1 and 2, fig. 1 is a flowchart of a method for automatically adjusting a gap of a grinding disc according to the present invention, fig. 2 is a schematic structural diagram of a system for automatically adjusting a gap of a grinding disc according to the present invention, and in combination with fig. 2, the method for automatically adjusting a gap of a grinding disc according to the present invention includes the following steps:
s1, a control system 100 starts a movable millstone driving motor 31, the output frequency of a frequency converter of the movable millstone driving motor 31 is 15Hz, the movable millstone 23 is enabled to rotate positively, the rotating speed of the movable millstone 23 is controlled to be 420r/min, the torque is 6NM, a speed measuring device 1 tests the rotating speed of the movable millstone 23 in real time and transmits the rotating speed to the control system 100, and when the control system 100 judges that the rotating speed of the movable millstone 23 is stable, the step S2 is carried out;
s2, the control system 100 starts the millstone translation device 25, the millstone translation device 25 drives the movable millstone 23 to move towards the static millstone 22, and the speed measuring device 1 tests the rotating speed of the movable millstone 23 in real time and transmits the rotating speed to the control system 100;
s3, when the movable millstone 23 and the static millstone 22 start to be contacted, the rotation speed of the movable millstone 23 is reduced along with the increase of friction force, the speed measuring device 1 detects the rotation speed of the movable millstone 23 in real time and transmits the rotation speed to the control system 100, when the control system 100 judges that the rotation speed is lower than a set rotation speed threshold, the initial rotation speed is reduced by 3 revolutions, namely 417 revolutions/minute, and the step S4 is entered;
s4, stopping the horizontal movement of the movable millstone 23 by the millstone translation device 25, stopping the rotation of the movable millstone 22 by the movable millstone driving motor 31, and entering a step S5 after stopping the rotation of the movable millstone 23;
s5, the control system 100 sends a movement instruction and a displacement instruction to the millstone translation device 25 according to the input particle size value, and the millstone translation device 25 controls the movable millstone 22 to move to a position set by the displacement instruction in a direction away from the static millstone 23 under the action of the servo motor 256; thereby realizing the purpose of automatically adjusting the clearance of the grinding disc.
As shown in fig. 2, the automatic clearance adjustment system for the grinding disc, which is described in the embodiment, comprises a static grinding disc 22, a movable grinding disc 23, a speed measuring device 1 and a grinding disc translation device 25 which are arranged on a disc grinder; the working surface of the movable millstone 23 is opposite to the working surface of the static millstone 22, and the speed measuring device 1 for testing the rotating speed of the movable millstone 23 is arranged on the movable millstone 23, and the speed measuring device 1 is an encoder; the grinding disc translation device 25 is arranged on the disc grinder and used for driving the movable grinding disc 23 to move along the horizontal direction, the driving device 3 is arranged on the disc grinder and used for driving the movable grinding disc 23 to rotate, and the control system 100 is used for controlling the movement of the grinding disc translation device 25 and the driving device 3, wherein the control system 100 adopts a PLC (programmable logic controller) or a singlechip and the like. The control system 100 may be provided independently of the disc automatic adjustment gap system and the disc crusher, see fig. 3, or may be provided below the disc crusher frame 6 beside the receiving mechanism 4.
The automatic clearance adjustment system for a grinding disc according to the present invention will be described in detail with reference to a disc crusher employing the automatic clearance adjustment system for a grinding disc according to the present embodiment.
As shown in fig. 2 and 3, the disc crusher adopting the automatic clearance adjusting system for the grinding disc according to the present embodiment comprises a grinding mechanism 2, a driving device 3, a receiving mechanism 4, a frame 6 and a grinding disc translation device 25. The frame 6 is used for installing a grinding mechanism 2, a millstone translation device 25, a driving device 3 and the like; wherein, the grinding mechanism 2 comprises a grinding cavity 21, a discharge hole 213 is arranged at the bottom of the grinding cavity 21, and a feed inlet 211 is arranged at the front end; a static grinding disc 22 in the grinding cavity 21, a movable grinding disc 23 arranged opposite to the static grinding disc 22 at intervals, and the movable grinding disc 23 is connected with the driving device 3 through a rotating shaft 24 and can rotate; the rotating shaft 24 is arranged on a rotating shaft supporting seat 26 through a bearing, and the grinding disc translation device 25 is connected with the rotating shaft supporting seat 26 and is used for adjusting the distance between the movable grinding disc 23 and the static grinding disc 22; the grinding cavity 21 is fixed on the frame 6, the rotating shaft supporting seat 26 is fixed on the frame 6 through the grinding disc translation device 25, so that under the control of the control system, the grinding disc pair zero point is performed through the method of the first embodiment, and further the grinding disc translation device 25 is controlled to drive the rotating shaft supporting seat 26 to drive the rotating shaft and the movable grinding disc 23 to conduct the moving and approaching actions relative to the static grinding disc 22, so that the gap adjustment between the movable grinding disc 23 and the static grinding disc 22 is completed, namely, the grinding disc translation device 25 is used for grinding the zero point pair zero point and adjusting the gap between the movable grinding disc and the static grinding disc under the control of the method of the invention, so that materials with different particle sizes can be ground.
Specifically, as shown in fig. 2 and 4, the grinding disc translation device 25 for zero point and gap adjustment is connected with the rotating shaft supporting seat 26, the grinding disc translation device 25 comprises a sliding block 251 which is arranged below the rotating shaft supporting seat 26 and can move along the axial direction of the rotating shaft 24 on a plane, and a guide rail 257 for sliding the sliding block 251 is arranged on the frame 6; a connecting piece 258 is arranged between the sliding block 251 and the rotating shaft supporting seat 26, an end face of the connecting piece 258 is provided with an end plate 2581, a screw 252 is fixedly connected to the end plate 2581, the screw 252 is connected with a screw rod 253, the body of the screw rod 253 is fixed in position through an adjusting bearing seat 254, and one end of the screw rod 253 is connected with a servo motor 256 through a coupler 255. The control system controls the servo motor 256 to rotate, the screw rod 253 rotates along with the servo motor, the screw rod 252 is driven to axially move on the screw rod 253, the slider 251 is driven by the connecting piece 258 to linearly move along the guide rail 257, and the rotating shaft supporting seat 26 and the rotating shaft 24 are driven to synchronously displace, so that the gap between the movable grinding disc 23 and the static grinding disc 22 can be adjusted.
As shown in fig. 2 and 3, the driving device 3 for driving the movable millstone of the present invention includes: the driving motor 31, the rotating shaft 24 and the transmission device 32 are shown in fig. 3, and the driving motor 31 is fixed on the upper surface of the frame 6 and positioned on the side surface of the grinding mechanism 2; the rotating shaft 24 is arranged on the rotating shaft supporting seat 26; the tail end of the rotating shaft 24 is connected with the output shaft end of the driving motor 31 through a belt transmission device 32; the driving motor 31 supplies rotational power to the rotating shaft 24 and the movable millstone 23 through the belt transmission 32.
In a second embodiment, referring to fig. 5, another automatic clearance adjustment system for a grinding disc is shown, which is different from the first embodiment in that: the grinding disc translation device 25 is connected with the static grinding disc 22, the feeding mechanism 5 is connected with the feeding port 211 end of the static grinding disc, and the grinding disc translation device 25 is connected with the feeding mechanism 5 and is used for carrying the dynamic grinding disc 22 to do horizontal movement. The millstone translation device 25 is the same as the mechanism of the first embodiment, the upper surface of the connecting piece 258 is connected to the feeding mechanism 5, the lower surface of the connecting piece 258 is also provided with a sliding block 251 matched with the guide rail 257, and the servo motor 256 is connected with the connecting piece 258 through a screw 253.
The method for automatically adjusting the clearance of the clearance system by using the grinding disc comprises the following steps:
s1, a control system 100 starts a movable millstone driving motor 31, the output frequency of a frequency converter of the movable millstone driving motor 31 is 15Hz, the movable millstone 23 is enabled to rotate positively, the rotating speed of the movable millstone 23 is controlled to be 450r/min, the torque is 6NM, a speed measuring device 1 tests the rotating speed of the movable millstone 23 in real time and transmits the rotating speed to the control system 100, and when the control system 100 judges that the rotating speed of the movable millstone 23 is stable, the step S2 is carried out;
s2, the control system 100 starts the millstone translation device 25, the millstone translation device 25 drives the static millstone 22 to move towards the direction of the movable millstone 23, and the speed measuring device 1 tests the rotating speed of the movable millstone 23 in real time and transmits the rotating speed to the control system 100;
s3, when the static grinding disc 22 and the movable grinding disc 23 start to be contacted, the rotating speed of the movable grinding disc 23 is reduced along with the increase of friction force, the speed measuring device 1 detects the rotating speed of the movable grinding disc 23 in real time and transmits the rotating speed to the control system, when the control system judges that the rotating speed is lower than a set rotating speed threshold value, the initial rotating speed is reduced by 4 revolutions, namely 446 revolutions/minute, and the step S4 is entered;
s4, stopping the horizontal movement of the static grinding disc 22 by the grinding disc translation device 25, stopping the rotation of the static grinding disc 22 by the movable grinding disc driving motor 31, and entering a step S5 after stopping the rotation of the movable grinding disc 23;
and S5, the control system 100 sends a movement instruction and a displacement instruction to the millstone translation device 25 according to the input particle size value, and the millstone translation device 25 controls the static millstone 22 to move to a position set by the displacement instruction in a direction away from the movable millstone 23 under the action of a servo motor.
In a third embodiment, referring to fig. 6, there is shown an automatic clearance adjustment system for a grinding disc, which is different from the second embodiment in that: the grinding disc translation device 25 comprises two grinding disc translation devices, wherein the two grinding disc translation devices are respectively connected with the static grinding disc 22 and the movable grinding disc 23, the mode of connection with the static grinding disc 22 is consistent with that of the third embodiment, and the mode of connection with the movable grinding disc 23 is consistent with that of the first embodiment. The specific method for adjusting the clearance of the grinding disc by adopting the automatic clearance adjusting system of the grinding disc comprises the following steps:
s1, a control system 100 starts a movable millstone driving motor 31, the output frequency of a frequency converter of the movable millstone driving motor 31 is 15Hz, the movable millstone 23 is enabled to rotate positively, the rotating speed of the movable millstone 23 is controlled to be 400r/min, the torque is 6NM, a speed measuring device 1 tests the rotating speed of the movable millstone 23 in real time and transmits the rotating speed to the control system 100, and when the control system 100 judges that the rotating speed of the movable millstone 23 is stable, the step S2 is carried out;
s2, the control system 100 starts a grinding disc translation device 25, the grinding disc translation device 25 drives the static grinding disc 22 or/and the movable grinding disc 23 to move towards the other grinding disc direction, and the speed measuring device 1 tests the rotating speed of the movable grinding disc 23 in real time and transmits the rotating speed to the control system;
s3, when the static grinding disc 22 and the movable grinding disc 23 start to be contacted, the rotating speed of the movable grinding disc 23 is reduced along with the increase of friction force, the speed measuring device 1 detects the rotating speed of the movable grinding disc 23 in real time and transmits the rotating speed to the control system 100, when the control system 100 judges that the rotating speed is lower than a set rotating speed threshold value, the initial rotating speed is reduced by 2 revolutions, namely 398 revolutions per minute, and the step S4 is entered;
s4, the grinding disc translation device 25 stops the horizontal movement of the static grinding disc 22 or/and the movable grinding disc 23, the movable grinding disc driving motor 31 stops the rotation of the static grinding disc 22, and the step S5 is carried out after the rotation of the movable grinding disc 23 is stopped;
and S5, the control system 100 sends a movement instruction and a displacement instruction to one of the grinding disc translation devices 25 according to the input particle size value, and the grinding disc translation device 25 controls the static grinding disc 22 or the movable grinding disc 23 to move to a position set by the displacement instruction in a direction away from the movable grinding disc 23 or the static grinding disc 22 under the action of a servo motor.
The foregoing description is illustrative of the present invention and is not intended to be limiting, and the present invention is directed to a method and system for automatically adjusting a gap between two grinding discs, wherein the method and system are mainly implemented by rotating the two grinding discs while driving one grinding disc to move horizontally toward the other grinding disc, when the rotation speed of the two grinding discs drops to a threshold value due to friction force after the two grinding discs are contacted, the two grinding discs are marked as zero points, and one grinding disc is controlled to move reversely by a preset distance, so as to achieve the purpose of automatically adjusting the gap between the grinding discs.
Claims (10)
1. A method for automatically adjusting clearance of a grinding disc is characterized by comprising the following steps: comprising the following steps:
starting a movable millstone driving device (3) to drive the movable millstone (23) to rotate;
the static grinding disc (22) and/or the movable grinding disc (23) move in the opposite direction in the horizontal direction through the grinding disc translation device (25);
the rotating speed of the movable millstone (23) is measured in real time through a speed measuring device (1);
when the rotating speed of the movable millstone (23) is reduced to a set threshold value after the movable millstone (23) is contacted with the static millstone (22), the movable millstone driving device (3) stops rotating and the millstone translation device (25) stops translating, and the rotation is used as zero calibration;
the movable millstone (23) or/and the static millstone (22) are/is driven to move back through the millstone translation device (25), so that a set gap is formed between the movable millstone (23) and the static millstone (22).
2. The method for automatically adjusting a gap of a grinding disc according to claim 1, wherein: the method comprises the following steps:
s1, a control system (100) starts the movable millstone driving device (3) to enable the movable millstone (23) to rotate forwards, the speed measuring device (1) tests the rotating speed of the movable millstone (23) in real time and transmits the rotating speed to the control system (100), and when the control system (100) judges that the rotating speed of the movable millstone (23) is stable, the step S2 is carried out;
s2, the control system (100) starts the millstone translation device (25) to enable the movable millstone (23) and/or the static millstone (22) to move towards the static millstone (22) and/or the movable millstone (23), and the speed measuring device (1) tests the rotating speed of the movable millstone (23) in real time and transmits the rotating speed to the control system (100);
s3, when the movable millstone (23) and the static millstone (22) start to be contacted, the rotating speed of the movable millstone (23) is reduced along with the increase of friction force, the speed measuring device (1) detects the rotating speed of the movable millstone (23) in real time and transmits the rotating speed to the control system (100), and when the control system (100) judges that the rotating speed is lower than a set rotating speed threshold value, the step S4 is carried out;
s4, stopping the horizontal movement of the movable millstone (23) and/or the static millstone (22) by the millstone translation device (25), stopping the rotation of the movable millstone (23) by the movable millstone driving device (3), and entering a step S5 after the rotation of the movable millstone (23) is stopped;
s5, the control system (100) sends a motion instruction and a displacement instruction to the millstone translation device (25) according to the input particle size value, and the millstone translation device (25) controls the movable millstone (23) or the static millstone (22) to move to a position set by the displacement instruction in a direction away from the static millstone (22) or the movable millstone (23).
3. The method for automatically adjusting a gap of a grinding disc according to claim 2, wherein: the rotation speed threshold in the step S3 is at least 2r/min of rotation speed drop in the step S1.
4. A millstone automatic clearance adjustment system for implementing the method of millstone automatic clearance adjustment of claim 1, characterized in that: the rotary grinding disc device comprises a static grinding disc (22) arranged on a disc grinder, a movable grinding disc (23) with a working surface opposite to the working surface of the static grinding disc (22), a speed measuring device (1) arranged on the movable grinding disc (23) and used for testing the rotating speed of the movable grinding disc (23), a grinding disc translation device (25) arranged on the disc grinder and used for driving the movable grinding disc (23) or/and the static grinding disc (22) to move along the horizontal direction, a movable grinding disc driving device (3) arranged on the disc grinder and used for driving the movable grinding disc (23) to rotate, and a control system (100) used for controlling the movement of the grinding disc translation device (25) and the movable grinding disc driving device (3).
5. The automatic grinding disc gap adjustment system for implementing the method of automatic grinding disc gap adjustment as defined in claim 4, wherein: the movable grinding disc driving device (3) comprises a rotating shaft (24) connected with the movable grinding disc (23) and a movable grinding disc driving motor (31), and a transmission device (32) connected between the rotating shaft (24) and the movable grinding disc driving motor (31).
6. The automatic grinding disc gap adjustment system for implementing the method of automatic grinding disc gap adjustment as defined in claim 5, wherein: the rotating shaft (24) is arranged on the rotating shaft supporting seat (26), and the millstone translation device (25) is connected with the rotating shaft supporting seat (26).
7. The automatic grinding disc gap adjustment system for implementing the method of automatic grinding disc gap adjustment of claim 6, characterized in that: the grinding disc translation device (25) comprises: a servo motor (256), a guide rail (257) is located below the rotating shaft supporting seat (26), a connecting piece (258) is arranged below the rotating shaft supporting seat (26), a sliding block (251) matched with the guide rail (257) is arranged below the connecting piece (258), the servo motor (256) is connected with the connecting piece (258) through a screw rod (253) and a screw nut (252), and an adjusting bearing seat (254) provides support for one end of the screw rod (253).
8. The automatic grinding disc gap adjustment system for implementing the method of automatic grinding disc gap adjustment as defined in claim 5, wherein: the feeding port end of the static grinding disc (22) is connected with the feeding mechanism (5), and the grinding disc translation device (25) is connected with the feeding mechanism (5) and is used for driving the static grinding disc to horizontally move.
9. The automatic grinding disc gap adjustment system for implementing the method of automatic grinding disc gap adjustment of claim 8, characterized in that: the grinding disc translation device (25) comprises: a guide rail (257) is arranged below the feeding mechanism (5), a connecting piece (258) is connected to the feeding mechanism (5), a sliding block (251) matched with the guide rail is arranged below the connecting piece (258), a servo motor (256) is connected with the connecting piece (258) through a screw rod (253) and a nut (252), and an adjusting bearing seat (254) provides support for one end of the screw rod (253).
10. The disc automatic gap adjustment system for implementing the disc automatic gap adjustment method according to any one of claims 4 to 9, characterized in that: the speed measuring device (1) is an encoder.
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| CN115945260A (en) * | 2023-02-28 | 2023-04-11 | 当升科技(常州)新材料有限公司 | Automatic adjusting system for grinding disc gap of colloid mill based on voiceprint recognition technology |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100027607A (en) * | 2008-09-03 | 2010-03-11 | 주식회사 제이오 | Intaking improved type pulverization and dispersion apparatus for pulverization and dispersion level controllable |
| CN101831828A (en) * | 2006-01-09 | 2010-09-15 | 安德里兹有限公司 | Refining method of refiner having an outer row of teeth slanted to deflect pulp |
| CN109847921A (en) * | 2019-03-29 | 2019-06-07 | 东北大学 | Stochastic distribution control experimental provision and method towards mill system powder granularity |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005185898A (en) * | 2003-12-24 | 2005-07-14 | Masahiro Sugawara | Stone mill |
| WO2014017168A1 (en) * | 2012-07-24 | 2014-01-30 | ネピュレ株式会社 | Method for operating food mill |
| CN202898875U (en) * | 2012-11-12 | 2013-04-24 | 陕西西微测控工程有限公司 | Displacement detecting device for abrasive disk of cylindrical stuff grinder |
| WO2015136815A1 (en) * | 2014-03-12 | 2015-09-17 | 株式会社グローエンジニアリング | Operation control system for grinder and diagnostic device |
| CN205413167U (en) * | 2015-12-14 | 2016-08-03 | 丽江丰源生物科技开发有限公司 | Peppery wooden leaf rubbing crusher of energy -conserving inverter type |
| CN205413174U (en) * | 2016-02-18 | 2016-08-03 | 辽宁英冠高技术陶瓷股份有限公司 | A earthenware conduit grinds for food grinds to be processed |
| CN205887002U (en) * | 2016-06-29 | 2017-01-18 | 张升亮 | Abrasive disc of modified usefulness of carbon nanotube processing |
| CN107081187A (en) * | 2017-06-22 | 2017-08-22 | 深圳市香雅食品有限公司 | Flour mill abrasive disk space automatic adjusting mechanism and flour mill |
| CA3010942A1 (en) * | 2017-07-18 | 2019-01-18 | Gruppo Cimbali S.P.A. | Device for resetting the position of the grinding wheels in a grinder |
| CN207981296U (en) * | 2017-12-29 | 2018-10-19 | 江西畅品居新型材料有限公司 | A kind of double mill flour mills of plastics |
| CN108544351A (en) * | 2018-05-30 | 2018-09-18 | 佛山市三水区琪昌机械设备有限公司 | A kind of Ceramic Tiles face mill blank machine |
| CN109201199A (en) * | 2018-09-30 | 2019-01-15 | 东北大学 | A kind of the abrasive disk space Servocontrol device and method of disc type scratch system |
| CN111495495A (en) * | 2019-06-11 | 2020-08-07 | 江西光明智能科技有限公司 | Disc crusher |
| CN111167560B (en) * | 2020-01-15 | 2021-05-11 | 成都新润油脂有限责任公司 | Sesame oil raw material grinding system |
-
2020
- 2020-10-12 CN CN202011084805.0A patent/CN112169914B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101831828A (en) * | 2006-01-09 | 2010-09-15 | 安德里兹有限公司 | Refining method of refiner having an outer row of teeth slanted to deflect pulp |
| KR20100027607A (en) * | 2008-09-03 | 2010-03-11 | 주식회사 제이오 | Intaking improved type pulverization and dispersion apparatus for pulverization and dispersion level controllable |
| CN109847921A (en) * | 2019-03-29 | 2019-06-07 | 东北大学 | Stochastic distribution control experimental provision and method towards mill system powder granularity |
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