CN114950615A - Automatic compensation control method for conical breaking discharge hole - Google Patents
Automatic compensation control method for conical breaking discharge hole Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 41
- 238000005299 abrasion Methods 0.000 claims abstract description 58
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 33
- 238000005096 rolling process Methods 0.000 claims abstract description 21
- 238000004364 calculation method Methods 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 12
- 230000000630 rising effect Effects 0.000 claims description 23
- 238000001514 detection method Methods 0.000 claims description 11
- 238000007599 discharging Methods 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 description 15
- 238000004519 manufacturing process Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- 230000009467 reduction Effects 0.000 description 6
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- 238000006243 chemical reaction Methods 0.000 description 2
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- 238000004804 winding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
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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
- B02C2/00—Crushing or disintegrating by gyratory or cone crushers
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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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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
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Abstract
The invention discloses an automatic compensation control method for a conical breaking discharge hole, which comprises the following steps: s1: the moving cone automatically performs zero alignment; s2: calculating the abrasion loss and the abrasion speed of the rolling mortar wall; s3: calculating the opening of the discharge opening in real time; s4: the size of the discharge opening is automatically adjusted; the invention realizes the calculation of the abrasion compensation value of the cone crushing mortar wall and automatically adjusts the opening of the cone crushing discharge port according to the compensation value so as to control the crushing granularity of the material. The wear compensation value of the broken mortar wall of the cone is indirectly calculated by calculating the zero position offset of the movable cone before and after zero setting, and the opening of the broken discharge port of the cone is automatically adjusted under the non-stop state.
Description
Technical Field
The invention relates to an automatic control method, in particular to an automatic compensation control method for a cone breaking and discharging opening.
Background
Cone crushers have been used in a large number of applications in the gravel production industry as a primary crushing apparatus, in which when crushing material, the material is held between an inner cone and an outer cone, the outer cone is fixed, and the inner cone eccentrically swings to crush or break ore lumps sandwiched therebetween. Cone crusher is at the in-process of broken material, because and can produce powerful friction force between the material, broken wall can slowly become thin along with time, satisfy the production needs for guaranteeing the size of broken granularity, broken mortar bin outlet size of circular cone is designed into adjustable, the adjustment of the broken mortar size of the cone crusher on the present market is basically accomplished through manual mode, this kind of mode easy operation, technical requirement is low, but adopt this kind of mode, there are some not enough places yet, its concrete presentation is in following several aspects:
1. the abrasion amount of the broken mortar wall is unknown, so that the position adjustment amount of the movable cone cannot be determined, and the adjustment error is large only by experience;
2. the current actual position of the movable cone cannot be determined by manually operating the movable cone to lift, and the adjustment precision is poor;
3. the adjustment can only be carried out when the production is stopped and the adjustment time is uncertain, thereby influencing the production and reducing the quality of products.
Chinese patent 202110495845.2 discloses an automatic wear compensation system for a liner plate of a cone crusher and a control method thereof, which can realize real-time adjustment of the opening of a discharge opening of the cone crusher in a cone working state, but the system has the following disadvantages:
1. zero alignment is carried out in a static state of the cone, the zero position after zero alignment is not necessarily the movable cone displacement position corresponding to the maximum abrasion position of the cone wall, and when the discharge opening is automatically adjusted, the opening of the discharge opening is possibly adjusted too much, so that the expected control effect cannot be achieved;
2. the variation of the displacement of the movable cone is used as the variation of the opening of the discharge opening, and the calculated abrasion loss cannot reflect the actual abrasion loss of the crushing wall.
Disclosure of Invention
In order to solve the above problems, the present invention provides an automatic compensation control method for a discharge opening of a cone crusher, which is used for accurately and automatically adjusting the size of the discharge opening in real time, so as to improve the production efficiency.
In order to achieve the above purpose, the invention adopts the technical scheme that:
a method for automatically compensating and controlling a conical breaking and discharging opening comprises the following steps:
s1: the moving cone automatically performs zero alignment; detecting the actual position of the moving cone, lifting the moving cone to a specified position, and recording the current position of the moving cone as the first position of the moving cone;
s2: calculating the abrasion loss and the abrasion speed of the rolling mortar wall and the crushing wall; calculating the zero point position deviation of the movable cone according to the first position of the movable cone of S1, and further calculating the abrasion loss and the abrasion speed of the rolling mortar wall and the crushing wall;
s3: calculating the opening of the discharge opening in real time; according to the calculation result of S2, calculating the position deviation of the movable cone, the current opening degree and the compensation value of the discharge opening, and further calculating the real-time opening degree of the discharge opening;
s4: the size of the discharge opening is automatically adjusted; and adjusting the position of the movable cone according to the calculation result of the S3.
Further, the automatic zero alignment of the dynamic cone in the step S1 includes the following steps:
s101: starting a cone main engine and a detection element, wherein the detection element is used for detecting the position of a movable cone and the pressure of a movable cone adjusting oil way; storing pre-zero data, wherein the pre-zero data comprises pre-zero positions; judging whether zero alignment is finished or not; if yes, executing S104; if not, emptying accumulated materials in the crushing mortar, detecting the no-load pressure of the movable cone adjusting oil way at the moment, and executing the next step;
s102: executing a zero-aligning cone rising command, detecting the position of the movable cone at the moment as a first position of the movable cone and a first pressure of a movable cone adjusting oil path, and judging whether the first position of the movable cone is more than or equal to a zero-aligning pre-zero position or not when the first pressure is more than or equal to a threshold pressure; if yes, executing the next step, otherwise, executing the step S104;
s103: executing a zero-point cone reduction command, reducing the cone to a specified position, and executing the next step;
s104: and restoring the data before zero alignment and finishing the automatic zero alignment.
Further, the threshold pressure is a pressure scaling factor x idle pressure.
Further, in step S102, a zero-crossing cone rising command is executed, a first position of the movable cone and a first pressure of the movable cone adjusting oil path at this time are detected, and when the first pressure is smaller than a threshold pressure, cone rising is continued until the first pressure is greater than or equal to the threshold pressure.
Further, the calculation of the wear amount and wear speed of the rolling mortar wall and the crushing wall in the step S2 includes the following steps:
s201: calculating a zero point position deviation, wherein the zero point position deviation is the first position of the movable cone-the position of a zero point before zero;
s202: calculating the abrasion loss, wherein the abrasion loss is zero point position deviation divided by an abrasion factor;
s203: calculating the wear speed, and judging whether a first operation time is greater than 0, wherein the first operation time is the total operation time of the equipment after last zero-setting; if so, the wear rate is the wear amount ÷ first operating time, otherwise, the wear rate is 0.
Further, the step S3 of calculating the real-time opening of the discharge opening includes the following steps:
s301: calculating the position deviation of the movable cone and the current opening degree of the discharge hole; detecting the position of the movable cone at the moment as a second position of the movable cone, wherein the position deviation of the movable cone is equal to the first position of the movable cone-the second position of the movable cone; the current opening degree of the discharge opening is equal to the position deviation of the movable cone and is divided by a wear factor;
s302: and calculating the real-time opening degree of the discharge opening, and judging whether the abrasion compensation function is started, wherein if so, the real-time opening degree of the discharge opening is equal to the current opening degree of the discharge opening plus a compensation value.
Further, the method for calculating the compensation value includes: when calculating the compensation value, judging whether the second operation time is larger than the operation time limit value, if not, the compensation value is the abrasion speed multiplied by the second operation time, and if so, the compensation value is the abrasion speed multiplied by the operation time limit value.
Further, the step S4 of automatically adjusting the size of the discharge opening includes the following steps:
s401: detecting the pressure value of the movable cone adjusting oil way as a second pressure at the moment, and starting the automatic adjusting function of the discharge port; when the second pressure is smaller than the threshold pressure, comparing the real-time opening degree of the discharge opening, the opening degree upper limit value and the opening degree lower limit value, and if the real-time opening degree of the discharge opening is larger than the opening degree upper limit value, executing the next step; if the real-time opening of the discharge port is smaller than the opening lower limit value, executing the step S403; otherwise, executing step S404;
s402: sending a cone rising command of the discharge opening, and carrying out automatic cone rising adjustment on the discharge opening; comparing the opening of the discharge opening controlled in real time, the upper limit value of the opening of the discharge opening and the lower limit value of the opening of the discharge opening, and executing S404 when the lower limit value of the opening is smaller than or equal to the real-time opening of the discharge opening and smaller than or equal to the upper limit value of the opening; otherwise, continuing to perform cone rising adjustment;
s403: sending a cone-reducing command of the discharge opening, and automatically reducing and adjusting the cone of the discharge opening; comparing the real-time opening degree of the discharge opening, the opening degree upper limit value and the opening degree lower limit value, executing the next step when the opening degree lower limit value is smaller than or equal to the real-time opening degree of the discharge opening and smaller than or equal to the opening degree upper limit value, and otherwise, continuously executing a cone-reducing command;
s404: and finishing the adjustment after the discharge port is automatically adjusted.
Further, in step S401, when the second pressure is greater than or equal to the threshold pressure, step S404 is executed.
The invention has the beneficial effects that:
the invention provides an automatic compensation control method for a broken cone discharge port, which automatically adjusts the size of the discharge port, adopts a displacement sensor to detect the actual position of a movable cone and detect and convert the size of the discharge port, adopts a pressure sensor to detect the pressure of a movable cone adjusting oil way so as to judge the position relation between the movable cone and a rolling mortar wall, automatically calculates the abrasion degree and the abrasion compensation value of the broken wall of the movable cone and the rolling mortar wall of a static cone, automatically adjusts the size of the discharge port according to the calculation result, has small adjustment error and high precision, can realize real-time adjustment, can automatically judge whether the adjustment is needed or not according to the calculation result in the production process, responds to the change of the opening of the discharge port quickly, and ensures the quality of the produced products; and the size of the adjustment amount and the adjustment time are not required to be judged by operators, the machine is not required to be stopped for adjustment, the production efficiency is ensured, and the labor cost is saved.
Drawings
FIG. 1 is a flowchart of a control method according to embodiment 1 of the present invention;
FIG. 2 is a flowchart of a control method according to embodiment 2 of the present invention;
FIG. 3 is a flowchart of a control method according to embodiment 3 of the present invention;
FIG. 4 is a flowchart of a control method according to embodiment 4 of the present invention;
FIG. 5 is a flowchart of a control method according to embodiment 5 of the present invention;
fig. 6 is a schematic structural view of a cone crusher according to the present invention.
In the figure: 1. crushing the mortar; 2. rolling a mortar wall; 3. crushing the wall; 4. adjusting a hydraulic cylinder; 5. a displacement sensor; 6. a pressure sensor; 7. the movable cone adjusts the oil way.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described with reference to the accompanying drawings. In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Example 1
As shown in fig. 1 to 6, the present embodiment provides an automatic compensation control method for a broken cone discharge opening, which includes the following steps:
a method for automatically compensating and controlling a conical breaking and discharging opening comprises the following steps:
s1: the moving cone automatically performs zero alignment; detecting the actual position of the moving cone, lifting the moving cone to a specified position, and recording the current position of the moving cone as the first position of the moving cone;
s2: calculating the abrasion loss and the abrasion speed of the rolling mortar wall 2 and the crushing wall 3; according to the first position of the movable cone of S1, calculating the zero point position deviation of the movable cone, and further calculating the abrasion loss and the abrasion speed of the rolling mortar wall 2 and the crushing wall 3;
s3: calculating the opening of the discharge opening in real time; according to the calculation result of S2, calculating the position deviation of the movable cone, the current opening degree and the compensation value of the discharge opening, and further calculating the real-time opening degree of the discharge opening;
s4: the size of the discharge opening is automatically adjusted; and adjusting the position of the movable cone according to the calculation result of the S3.
In some preferred embodiments, a displacement sensor 5 is used for detecting the actual position of the moving cone, a pressure sensor 6 is used for detecting the pressure of a moving cone adjusting oil way 7 so as to judge the position relation between the moving cone and the static wall of the crusher, the moving of the moving cone is controlled, the moving cone is moved to the position attached to the static wall of the crusher, whether the moving cone is attached to the static wall of the crusher is judged through the pressure on the moving cone oil way, the current position of the moving cone is recorded as the first position of the moving cone, and one-time zero alignment is realized; after zero alignment is completed, the control system calculates the zero position deviation of the movable cone before and after zero alignment, and further calculates the abrasion loss and the abrasion speed of the rolling mortar wall 2 and the crushing wall 3; calculating the real-time opening degree of the discharge opening according to the calculated results of the abrasion loss and the abrasion speed of the rolling mortar wall 2 and the crushing wall 3, judging whether the opening degree of the current discharge opening meets the automatic adjustment condition, starting the automatic adjustment function if the opening degree meets the automatic adjustment condition, and automatically adjusting the real-time opening degree of the discharge opening until the real-time opening degree of the discharge opening is matched with the control opening degree of the discharge opening; in some preferred embodiments, the discharge opening control opening is preset by the control system human-machine interaction device.
Example 2
As shown in fig. 2, the present embodiment is developed based on the above embodiment, and specifically, the present embodiment discloses a specific step of automatically zeroing the moving cone in step S1, as follows:
s101: starting a cone main engine and a detection element, wherein the detection element is used for detecting the position of the movable cone and the pressure of the movable cone adjusting oil path 7, and in some preferred embodiments, the detection element is a displacement sensor 5 and a pressure sensor 6, which are respectively used for detecting the position of the movable cone and the pressure of the movable cone adjusting oil path 7; storing pre-zero data, wherein the pre-zero data comprises pre-zero positions; the automatic zero-setting control system further comprises a data set related to last-time bin outlet adjustment, wherein the data set is used for restoring corresponding control data of the cone crusher under the condition that automatic zero-setting is not normally completed, and the control data is used for calculating data such as real-time bin outlet opening, current bin outlet opening, abrasion loss and the like so as to ensure that the cone crusher can automatically adjust and automatically compensate and control the bin outlet in a state before zero-setting failure. Emptying accumulated materials in the crushing mortar 1, detecting the no-load pressure of the movable cone adjusting oil way 7 at the moment, and executing the next step; it is worth to be noted that, in the automatic zero-checking process, the data detected by the detecting element will be within a certain threshold interval, if the detecting element fails, the detecting element will output an error data, and if the data exceeds the threshold interval, the detecting element is determined to be failed, and the system will give an alarm signal of the detecting element failure, and terminate the automatic zero-checking, discharge opening adjustment and wear compensation functions. Before the zero-point cone rising, a main engine needs to be started to empty accumulated materials in the crushing mortar 1, after the main engine reaches the empty distinguishing time, the system judges that the accumulated materials in the crushing cavity are already emptied, and the zero-point cone rising operation can be carried out.
S102: executing a zero cone lifting command, starting an adjusting oil pump to lift a cone, detecting the position of the movable cone and the pressure of a movable cone adjusting oil path 7 at the moment as first pressure of a first position of the movable cone and the movable cone adjusting oil path 7, wherein the threshold pressure is the pressure when the crushing wall 3 is attached to the rolling mortar wall 2, and when the first pressure is more than or equal to the threshold pressure, the movable cone is shown to be fully contacted with the static wall of the crusher; after the crusher is worn for a period of time, the first position of the movable cone is not less than the zero point position before zero, so that whether the first position of the movable cone is not less than the zero point position before zero is judged at the moment, if yes, the next step is executed, if not, the cone rising error is judged, and the step S104 is executed; it is worth to be noted that in the cone lifting process, whether cone lifting faults occur or not is detected in real time in the whole process, and if the cone lifting faults occur, the functions of zero alignment, automatic adjustment of a discharge port and abrasion compensation are stopped.
S103: executing a zero-aligning and cone-reducing command, starting an adjusting oil pump to reduce the cone, and finishing automatic zero alignment if the actual opening degree of the cone reducing to a discharge port is larger than the set discharge port control opening degree; in some preferred embodiments, because the oil station is fixed, the moving cone descending speed is basically constant, so that whether the cone descending is finished or not can be judged by setting the cone descending time.
S104: and restoring the data before zero alignment and finishing the automatic zero alignment.
Preferably, the threshold pressure is a pressure scaling factor x idle pressure.
Preferably, in step S102, a zero-facing cone rising command is executed, the first position of the movable cone and the first pressure of the movable cone adjusting oil path 7 at this time are detected, and when the first pressure is smaller than the threshold pressure, cone rising is continued until the first pressure is greater than or equal to the threshold pressure.
Example 3
As shown in fig. 3, the present embodiment is developed on the basis of the above-mentioned embodiment, and specifically, the present embodiment discloses that the calculation of the wear amount and the wear rate of the rolling mortar wall 2 and the crushing wall 3 in step S2 includes the following steps:
the cone crusher is worn for a period of time, whether zero alignment is finished or not is judged before the abrasion loss and the abrasion speed of the rolling mortar wall 2 and the crushing wall 3 are calculated, the following steps are continuously executed after the automatic zero alignment is confirmed to be finished, and if the automatic zero alignment is not finished correctly, the step is finished.
S201: calculating zero point position deviation, preparing for calculation of subsequent abrasion loss and abrasion speed, and calculating abrasion loss of the rolling mortar wall 2 and the crushing wall 3 according to the position deviation, wherein the zero point position deviation is the position of a first position-a zero point before zero of the movable cone;
s202: calculating the abrasion loss, wherein the abrasion loss is zero point position deviation divided by an abrasion factor; it is worth to be noted that the abrasion factor is the ratio of the displacement variation of the movable cone to the variation of the cone discharge opening, and is related to the parameters of the cone crusher.
S203: calculating the wear speed, and judging whether the first operation time of the equipment is greater than 0 after the last zero setting, if so, setting the wear speed as the wear amount and dividing the first operation time, and if not, setting the wear speed as 0; it should be noted that the first operation time of the device here is a total strip operation time from the last time the device performs the zeroing to the time the device realizes the auto-zeroing function.
Example 4
As shown in fig. 4, the present embodiment is developed on the basis of the above embodiments, and specifically, the present embodiment discloses a specific step of calculating the real-time opening degree of the discharge opening, as follows:
s301: calculating the position deviation of the movable cone and the current opening degree of the discharge hole; detecting the position of the movable cone at the moment as a second position of the movable cone, wherein the position deviation of the movable cone is equal to the first position of the movable cone-the second position of the movable cone; the current opening degree of the discharge opening is equal to the position deviation of the movable cone and is divided by a wear factor;
s302: calculating the real-time opening of the discharge opening, judging whether the abrasion compensation function is started, and if so, determining the real-time opening of the discharge opening as the current opening of the discharge opening plus a compensation value; if not, the real-time opening degree of the discharge opening is equal to the current opening degree of the discharge opening, and whether the abrasion compensation function is started or not is judged by judging whether a switch of the function is started or not.
Preferably, the compensation value calculating method includes: when calculating the compensation value, judging whether the second operation time is larger than the operation time limit value, if not, the compensation value is the abrasion speed multiplied by the second operation time, and if so, the compensation value is the abrasion speed multiplied by the operation time limit value; it should be noted that the second running time here is the total strip running time of the equipment after the equipment completes the automatic zero alignment at this time, and when the cone crusher runs and the current value of the main machine is greater than the loading judgment threshold value of the crusher, the control device automatically accumulates the running time to obtain the second running time.
Example 5
As shown in fig. 5, the present embodiment is developed based on the above embodiments, and specifically, the present embodiment discloses a specific step of automatically adjusting the size of the discharge opening in step S4, in which the real-time opening degree of the discharge opening is calculated in the whole process as follows:
s401: the detection element detects the second pressure of the movable cone adjusting oil way 7 and starts the automatic adjusting function of the discharge port; judging whether the detection element has a fault in the whole process, and if the detection element has the fault, finishing the automatic adjustment of the size of the discharge port; when the second pressure is smaller than the threshold pressure, comparing the real-time opening degree of the discharge opening, the opening degree upper limit value and the opening degree lower limit value, and if the real-time opening degree of the discharge opening is larger than the opening degree upper limit value, executing the next step; if the real-time opening degree of the discharge opening is smaller than the opening degree lower limit value, executing the step S403; otherwise, executing step S404;
s402: sending a cone rising command of the discharge opening, and automatically rising the cone of the discharge opening for adjustment; comparing the real-time opening degree of the discharge opening, the upper limit value of the opening degree of the discharge opening and the lower limit value of the opening degree of the discharge opening, and executing the step S405 when the lower limit value of the opening degree is smaller than or equal to the real-time opening degree of the discharge opening and smaller than or equal to the upper limit value of the opening degree; otherwise, continuing to perform cone rising adjustment; it is worth to be noted that the size of the discharge opening of the cone crusher can meet the production requirement as long as the size is controlled within the allowable deviation range of the opening degree, and the deviation range is preset by the system.
S403: sending a cone-reducing command of the discharge opening, and automatically reducing and adjusting the cone of the discharge opening; comparing the real-time opening degree of the discharge opening, the opening degree upper limit value and the opening degree lower limit value, executing the next step when the opening degree lower limit value is smaller than or equal to the real-time opening degree of the discharge opening and smaller than or equal to the opening degree upper limit value, and otherwise, continuously executing a cone-reducing command;
s404: and finishing the adjustment after the discharge port is automatically adjusted.
Preferably, in step S401, when the second pressure is greater than or equal to the threshold pressure, step S404 is executed.
Example 6
As shown in fig. 1 to 6, the present embodiment is developed based on the above embodiments, and provides a specific control method of an automatic compensation control method for a cone crusher discharge opening, an example is a single-cylinder hydraulic cone crusher, after measurement and calculation, the conversion relationship between the displacement variation of the movable cone of the cone crusher and the opening variation of the discharge opening, that is, the wear factor is 1.75, the conversion relationship between the no-load pressure of the movable cone and the threshold pressure, that is, the threshold pressure is the pressure conversion factor × the no-load pressure, that is, the pressure conversion factor is 1.5, and in order to prevent the calculated compensation amount from being too large to cause over-adjustment, the operation time limit value for calculating the compensation amount is set to 300.0 hours. Before zero-crossing, the first operating time of the cone crusher is 16200 minutes, the zero-crossing point is 2231.0 (unit 0.1mm), and the zero-crossing completion flag REF END ＝TRUE。
S1: the moving cone automatically performs zero alignment; in some better embodiments, adopt displacement sensor 5 to detect the actual position of moving the awl, adopt pressure sensor 6 to detect the pressure that moves awl adjustment oil circuit 7 and then judge the position relation that moves the awl and roll mortar wall 2, software control moves the awl and removes the position of broken wall 3 with rolling the laminating of mortar wall 2, record and move awl present position as the first position of moving the awl, realize once making change, at the automatic implementation in-process that makes change of moving the awl, equipment is being in the stop state this moment, include following step:
s101: starting a cone host, a displacement sensor 5 and a pressure sensor 6, wherein the displacement sensor 5 is used for detecting the actual position of a moving cone, and the pressure sensor 6 is used for detecting the pressure of a moving cone adjusting oil way 7; storing the data before zero alignment so as to be convenient for replying the data after the zero alignment fails; judging whether zero alignment is finished or not; zero-complete flag REF END Not equal to TRUE, emptying accumulated materials in the crushing mortar 1, detecting that the no-load pressure of the movable cone adjusting oil way 7 is 20MPa when the continuous operation time of the cone main engine reaches accumulated material emptying judgment time, and executing the next step;
s102: executing a zero-point cone lifting command, and respectively detecting the position of the movable cone at the moment by the pressure sensor 6 and the displacement sensor 5 as the first position of the movable cone and the first pressure of the movable cone adjusting oil way 7, wherein the first pressure is more than or equal to 30 MPa; taking the current data of the displacement sensor 5 as 2261.0 (unit is 0.1mm), and executing the next step when the first position of the moving cone is not less than the zero point position before zero;
s103: executing a zero-point cone reduction command, starting a zero-point cone reduction timer, setting the zero-point cone reduction timer to be 20s, finishing cone reduction until the zero-point cone reduction timer reaches a set value, and executing the next step;
s104: and restoring the data before zero alignment and finishing the automatic zero alignment.
Further, the threshold pressure is 1.5 × 20MPa or 30MPa for the pressure conversion factor × no-load pressure;
s2: calculating the abrasion loss and the abrasion speed of the rolling mortar wall 2 and the crushing wall 3; calculating the zero point position deviation of the movable cone according to the first position of the movable cone of S1, and further calculating the abrasion loss and the abrasion speed of the rolling mortar wall 2 and the crushing wall 3;
s201: calculating a zero point position deviation, wherein the zero point position deviation is 2261.0-2231.0 which is 30.0 (unit 0.1mm) of a first position-a zero point before zero point of the movable cone;
s202: calculating the wear loss, which is the zero point position deviation ÷ wear factor ÷ 30.0 ÷ 1.75 ÷ 17.0 (unit 0.1 mm); (ii) a
S203: calculating the abrasion speed, wherein the total operation time of the equipment after the last zero-checking, namely the first operation time is 16200 minutes, namely the first operation time of the equipment is 16200 hours; the wear rate is 17.0 ÷ first operating time ÷ 270.0 ÷ 0.063 (unit 0.1 mm/h).
S3: calculating the opening of the discharge port in real time; according to the calculation result of S2, calculating the position deviation of the movable cone, the current opening degree and the compensation value of the discharge opening, and further calculating the real-time opening degree of the discharge opening; at this time, a zero-setting operation has been successfully performed, the operation time after this zero-setting operation is 280.0 hours, the wear rate is 0.063 (unit is 0.1mm/h), the cone position detection displacement sensor 5 and the pressure sensor 6 of the movable cone adjusting oil passage 7 are in an enabled state, the wear compensation function is started, and the method comprises the following steps:
s301: calculating the position deviation of the movable cone and the current opening degree of the discharge port; reading a moving cone second position of 2200.0 (unit 0.1mm), wherein the moving cone position deviation is the moving cone first position-the moving cone second position is 2261.0-2200.0-61.0 (unit 0.1 mm); the current opening of the discharge opening is the position deviation of the moving cone, the abrasion factor is 61.0, 1.75, 35.0 (unit 0.1 mm);
s302: and calculating the real-time opening degree of the discharge opening, and judging whether the abrasion compensation function is started, wherein if so, the real-time opening degree of the discharge opening is equal to the current opening degree of the discharge opening plus a compensation value.
Further, after one time of the zeroing operation has been successfully performed, the operation time of the device after the one time of the zeroing operation is 280.0 hours, that is, the second operation time is 280.0 hours, and the calculation method of the compensation value includes: when the compensation value is calculated, the operating time is less than the operating time limit, the second operating time is 280 hours, and the operating time limit is 300 hours, then the compensation value is abrasion speed × second operating time 0.063 × 280.0 ═ 17.6 (unit 0.1mm), then the discharge opening real-time opening is the current opening of the discharge opening + the compensation value is 35.0+17.6 ═ 52.6 (unit 0.1 mm).
S4: the size of the discharge opening is automatically adjusted; adjusting the position of the moving cone according to the calculation result of S3, wherein the zero-crossing operation is successfully executed, REF END The method comprises the following steps of (1), setting the upper limit value of the opening of a discharge opening to be 40 (unit 0.1mm), setting the lower limit value of the opening of the discharge opening to be 20 (unit 0.1mm), enabling a displacement sensor 5 and a pressure sensor 6, and starting an automatic adjustment function of the discharge opening, wherein the real-time opening of the discharge opening is 52.6 (unit 0.1mm), and the method comprises the following steps:
s401: detecting the pressure value of the movable cone adjusting oil way 7 as a second pressure at the moment, and starting the automatic adjusting function of the discharge port; the second pressure is smaller than the threshold pressure, at this time, the real-time opening degree of the discharge opening, the opening degree upper limit value and the opening degree lower limit value are compared, the real-time opening degree of the discharge opening is 52.6, and the opening degree upper limit value is 40 (unit is 0.1mm), and step S402 is executed; if the real-time opening degree of the discharge opening is smaller than the opening degree lower limit value, executing the step S403; otherwise, executing step S404;
s402: sending a cone rising command of the discharge opening, and automatically rising the cone of the discharge opening for adjustment; comparing the opening of the discharge opening controlled in real time, the upper limit value of the opening of the discharge opening and the lower limit value of the opening of the discharge opening, and executing S404 when the lower limit value of the opening is smaller than or equal to the real-time opening of the discharge opening and smaller than or equal to the upper limit value of the opening; otherwise, continuing to perform cone rising adjustment;
s403: sending a cone-reducing command of the discharge opening, and automatically reducing and adjusting the cone of the discharge opening; comparing the real-time opening of the discharge opening, the opening upper limit value and the opening lower limit value, executing the next step when the opening lower limit value is less than or equal to the real-time opening of the discharge opening and less than or equal to the opening upper limit value, and otherwise, continuing to execute a cone falling command;
s404: and finishing the adjustment after the discharge port is automatically adjusted.
Further, in step S401, when the second pressure is greater than or equal to the threshold pressure, step S404 is executed.
After the end of steps S1 and S2, the following method was used to test the effect of the auto-adjustment. Firstly, setting the opening of a discharge hole to be 20mm, starting an automatic discharge hole adjusting function, automatically adjusting the current opening of the discharge hole to be 20mm by the system according to the steps S3 and S4, then winding a circle by using a standard test rod with the diameter of 20mm and attaching the standard test rod to the conical movable cone crushing wall 3, and checking whether the narrowest part of the discharge hole can smoothly pass through the test rod or not, wherein the 20mm test rod perfectly passes through the test rod; next, setting the control opening of the discharge opening to be 30mm, starting the automatic adjustment function, automatically adjusting the current opening of the discharge opening to 30mm according to the steps of S3 and S4 by the system, then winding a circle by using a standard test rod with the diameter of 30mm to be attached to the cone movable cone crushing wall 3, and seeing whether the narrowest part of the discharge opening can smoothly pass through the test rod or not, wherein the test rod with the diameter of 30mm perfectly passes through the test rod, which shows that the control algorithm process adopted by the scheme can completely realize the automatic adjustment of the cone crushing discharge opening.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. The automatic compensation control method for the conical breaking and discharging opening is characterized by comprising the following steps of:
s1: the moving cone automatically performs zero alignment; detecting the actual position of the moving cone, raising the moving cone to a specified position, and recording the current position of the moving cone as the first position of the moving cone;
s2: calculating the abrasion loss and the abrasion speed of the rolling mortar wall and the crushing wall; calculating the zero point position deviation of the movable cone according to the first position of the movable cone of S1, and further calculating the abrasion loss and the abrasion speed of the rolling mortar wall and the crushing wall;
s3: calculating the opening of the discharge opening in real time; according to the calculation result of S2, calculating the position deviation of the movable cone, the current opening degree and the compensation value of the discharge opening, and further calculating the real-time opening degree of the discharge opening;
s4: the size of the discharge opening is automatically adjusted; and adjusting the position of the moving cone according to the calculation result of the S3.
2. The automatic compensation control method for the broken cone discharge opening as claimed in claim 1, wherein: the automatic zero alignment of the dynamic cone in the step S1 comprises the following steps:
s101: starting a cone main engine and a detection element, wherein the detection element is used for detecting the position of a movable cone and the pressure of a movable cone adjusting oil way; storing pre-zero data, wherein the pre-zero data comprises pre-zero positions; judging whether zero alignment is finished or not; if yes, executing S104; if not, emptying accumulated materials in the crushing mortar, detecting the no-load pressure of the movable cone adjusting oil way at the moment, and executing the next step;
s102: executing a zero-aligning cone rising command, detecting the position of the movable cone at the moment as a first position of the movable cone and a first pressure of a movable cone adjusting oil path, and judging whether the first position of the movable cone is more than or equal to a zero-aligning pre-zero position or not when the first pressure is more than or equal to a threshold pressure; if yes, executing the next step, otherwise, executing the step S104;
s103: executing a zero-point cone-reducing command, reducing the cone to a specified position, and executing the next step;
s104: and restoring the data before zero alignment and finishing the automatic zero alignment.
3. The automatic compensation control method for the broken cone discharge opening as claimed in claim 2, wherein: the threshold pressure is the pressure scaling factor x the unloaded pressure.
4. The automatic compensation control method for the broken cone discharge opening as claimed in claim 2, wherein: in step S102, a zero-crossing cone rising command is executed, a first position of the movable cone and a first pressure of the movable cone adjusting oil path at this time are detected, and when the first pressure is smaller than a threshold pressure, cone rising is continued until the first pressure is greater than or equal to the threshold pressure.
5. The automatic compensation control method for the broken cone discharge opening as claimed in claim 1, wherein: the calculation of the wear amount and the wear speed of the rolling mortar wall and the crushing wall in the step S2 comprises the following steps:
s201: calculating a zero point position deviation, wherein the zero point position deviation is the first position of the movable cone-the position of a zero point before zero;
s202: calculating the abrasion loss, wherein the abrasion loss is zero point position deviation divided by an abrasion factor;
s203: calculating the wear speed, and judging whether a first operation time is greater than 0, wherein the first operation time is the total operation time of the equipment after last zero-setting; if so, the wear rate is the wear amount ÷ first operating time, otherwise, the wear rate is 0.
6. The automatic compensation control method for the conical breaking discharge hole as claimed in claim 1, characterized in that: the step S3 of calculating the real-time opening degree of the discharge opening comprises the following steps:
s301: calculating the position deviation of the movable cone and the current opening degree of the discharge hole; detecting the position of the movable cone at the moment as a second position of the movable cone, wherein the position deviation of the movable cone is equal to the first position of the movable cone-the second position of the movable cone; the current opening degree of the discharge opening is equal to the position deviation of the movable cone and is divided by a wear factor;
s302: and calculating the real-time opening degree of the discharge opening, and judging whether the abrasion compensation function is started, wherein if so, the real-time opening degree of the discharge opening is equal to the current opening degree of the discharge opening plus a compensation value.
7. The automatic compensation control method for the broken cone discharge opening as claimed in claim 6, wherein: the calculation method of the compensation value comprises the following steps: when the compensation value is calculated, judging whether a second running time is greater than a running time limit value, wherein the second running time is the total running time of the equipment after automatic zero setting; if not, the compensation value is the wear rate × the second operating time, and if yes, the compensation value is the wear rate × the operating time limit value.
8. The automatic compensation control method for the broken cone discharge opening as claimed in claim 1, wherein: the step S4 of automatically adjusting the size of the discharge opening includes the following steps:
s401: detecting the pressure value of the movable cone adjusting oil way as a second pressure at the moment, and starting the automatic adjusting function of the discharge port; when the second pressure is smaller than the threshold pressure, comparing the real-time opening degree of the discharge opening, the opening degree upper limit value and the opening degree lower limit value, and if the real-time opening degree of the discharge opening is larger than the opening degree upper limit value, executing the next step; if the real-time opening of the discharge port is smaller than the opening lower limit value, executing the step S403; otherwise, executing step S404;
s402: sending a cone rising command of the discharge opening, and carrying out automatic cone rising adjustment on the discharge opening; comparing the opening of the discharge opening controlled in real time, the upper limit value of the opening of the discharge opening and the lower limit value of the opening of the discharge opening, and executing S404 when the lower limit value of the opening is smaller than or equal to the real-time opening of the discharge opening and smaller than or equal to the upper limit value of the opening; otherwise, continuing to perform cone rising adjustment;
s403: sending a cone-reducing command of the discharge opening, and automatically reducing and adjusting the cone of the discharge opening; comparing the real-time opening degree of the discharge opening, the opening degree upper limit value and the opening degree lower limit value, executing the next step when the opening degree lower limit value is smaller than or equal to the real-time opening degree of the discharge opening and smaller than or equal to the opening degree upper limit value, and otherwise, continuously executing a cone-reducing command;
s404: and finishing the adjustment after the discharge port is automatically adjusted.
9. The automatic compensation control method for the broken cone discharge opening as claimed in claim 9, wherein: in step S401, when the second pressure is greater than or equal to the threshold pressure, step S404 is performed.
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