CN115283059B - Automatic setting method for discharge hole of cone crusher - Google Patents
Automatic setting method for discharge hole of cone crusher Download PDFInfo
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- CN115283059B CN115283059B CN202210815079.8A CN202210815079A CN115283059B CN 115283059 B CN115283059 B CN 115283059B CN 202210815079 A CN202210815079 A CN 202210815079A CN 115283059 B CN115283059 B CN 115283059B
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- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000004364 calculation method Methods 0.000 claims description 14
- 239000010720 hydraulic oil Substances 0.000 claims description 10
- 239000003921 oil Substances 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 5
- 238000012360 testing method Methods 0.000 claims description 3
- 238000005065 mining Methods 0.000 abstract description 2
- 230000006870 function Effects 0.000 description 5
- 101100408454 Arabidopsis thaliana PLC6 gene Proteins 0.000 description 4
- 101100408456 Arabidopsis thaliana PLC8 gene Proteins 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 238000013519 translation Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013077 target material Substances 0.000 description 1
Classifications
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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
- B02C2/02—Crushing or disintegrating by gyratory or cone crushers eccentrically moved
- B02C2/04—Crushing or disintegrating by gyratory or cone crushers eccentrically moved with vertical axis
- B02C2/047—Crushing or disintegrating by gyratory or cone crushers eccentrically moved with vertical axis and with head adjusting or controlling mechanisms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C25/00—Control arrangements specially adapted for crushing or disintegrating
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention relates to the field of mining machinery, and discloses an automatic setting method for a discharge hole of a cone crusher, which comprises the following steps: the first step: establishing a global coordinate system; and a second step of: extracting working parameters and geometric parameters of the cone crusher according to working conditions of the cone crusher, and unifying geometric dimension characteristics of the cone crusher to a global coordinate system for description; and a third step of: according to the working parameters and the geometric parameters of the cone crusher, the size of a discharge opening of the cone crusher is calculated by combining a built-in algorithm; fourth step: comparing the size of the discharge opening with the size of the target discharge opening, if the difference between the size of the discharge opening and the size of the target discharge opening meets the requirement, recording the height value at the moment, if the difference between the size of the discharge opening and the size of the target discharge opening does not meet the requirement, adding an increment to the existing height, changing the value of the height, and repeating the second step, the third step and the fourth step until the difference between the size of the discharge opening and the size of the target discharge opening meets the requirement.
Description
Technical Field
The invention relates to the field of mining machinery, in particular to an automatic setting method for a discharge hole of a cone crusher.
Background
The discharge port has great influence on the production efficiency of the crusher, the granularity of the product, the shape of the product and other important parameters, and is one of the important factors for directly determining the quality of the product. At present, the size of the discharge opening of the crusher is mainly set by manual setting modes, such as Chinese patent: CN214666497U, CN210180349U, CN204329852U, CN102944155B, directly measuring the size of the discharge opening, when the measured size of the discharge opening is inconsistent with the target size of the discharge opening, changing the height of the movable cone lining board by the hydraulic system, the size of the discharge opening changes with the position change of the movable cone lining board, then continuing to measure, when the actual size of the discharge opening is consistent with the target size of the discharge opening, the height of the movable cone lining board does not change any more, and the hydraulic system maintains the size of the discharge opening at the target value. The method for manually setting the size of the discharge hole requires special customization or purchasing of a discharge hole measuring tool, which increases manufacturing or purchasing cost; the size of the discharge hole is set manually, so that the size is more random, the adjustment is needed repeatedly, the target value is finally tested, and the required working time is longer; in addition, the method for manually setting the size of the discharge opening is greatly influenced by subjective consciousness of people, different people set the same target value, the actual values of the discharge opening are different, and errors cannot be estimated, so that the automatic setting method for the discharge opening of the cone crusher is provided.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides an automatic setting method for a discharge hole of a cone crusher, which solves the problems.
(II) technical scheme
In order to achieve the above purpose, the present invention provides the following technical solutions: an automatic setting method for a discharge port of a cone crusher comprises the following steps:
the first step: establishing a global coordinate system;
and a second step of: extracting working parameters and geometric parameters of the cone crusher according to working conditions of the cone crusher, and unifying geometric dimension characteristics of the cone crusher to a global coordinate system for description;
and a third step of: according to the working parameters and the geometric parameters of the cone crusher, the size of a discharge opening of the cone crusher is calculated by combining a built-in algorithm;
fourth step: comparing the size of the discharge opening with the size of the target discharge opening, if the difference between the size of the discharge opening and the size of the target discharge opening meets the requirement, recording the height value at the moment, if the difference between the size of the discharge opening and the size of the target discharge opening does not meet the requirement, adding an increment to the existing height, changing the value of the height, and repeating the second step, the third step and the fourth step until the difference between the size of the discharge opening and the size of the target discharge opening meets the requirement.
Fifth step: and (3) lifting the movable cone assembly to the updated height according to the calculation result of the fourth step.
Preferably, the global coordinate system in the first step uses the bottom center point of the hydraulic cylinder as the origin of the coordinate system, the horizontal right direction is the positive direction of the x axis of the coordinate system, and the vertical upward direction is the positive direction of the y axis of the coordinate system.
Preferably, the working parameters and the geometric parameters comprise a precession angle of a movable cone assembly, an eccentric distance of the movable cone assembly, a height of the movable cone assembly, a cavity type curve and a target discharge hole size, the movable cone assembly comprises a main shaft, a movable cone and a movable cone lining plate, and the fixed cone lining plate and an upper frame form an upper frame assembly of the cone crusher together.
Preferably, the extracting of the dynamic cone lining plate cavity curve and the fixed cone lining plate cavity curve follows the following rules:
1. the lining plate is worn continuously along with time in the using process, the cavity curve of the cone crusher is a function of the total working time, and the specific form of the function is determined by fitting industrial test data;
2. extracting coordinates of two end points of the straight line at the straight line part of the cavity;
3. and extracting two endpoints of the arc, the circle center of the arc and the diameter of the arc from the arc part of the cavity.
Preferably, the built-in algorithm in the third step specifically includes the following steps:
1. dispersing a dynamic cone lining plate cavity curve of the cone crusher into a plurality of dynamic cone lining plate dispersing points;
2. dispersing a fixed cone lining plate cavity curve of the cone crusher into a plurality of fixed cone lining plate discrete points;
3. and sequentially taking the discrete points of each fixed cone lining plate, respectively calculating the distance between the discrete points and each movable cone lining plate, storing the discrete points into a two-dimensional array, and taking out the minimum value of the two-dimensional array, wherein the minimum value is the calculated size of the discharge opening.
Preferably, the size of the discharge opening is different from the target size of the discharge opening by a value less than or equal to zero point one.
Preferably, the input, selection of the cone crusher operating parameters and the geometrical parameters, and the calculation are all the PLC of the cone crusher.
Preferably, the height content of the lifting adjustment moving cone assembly in the fifth step is as follows: the equipment for lifting and adjusting the height of the movable cone assembly is a hydraulic system, after the height is calculated, the oil supply time is calculated according to the mathematical relationship among flow, time, volume, area and height, the hydraulic oil station quantitatively supplies hydraulic oil to the hydraulic cylinder according to the oil supply time, and the piston is lifted to the updated height under the pushing of the hydraulic oil.
Preferably, the increment is 0.5 or 1.
(III) beneficial effects
Compared with the prior art, the invention provides an automatic setting method for the discharge hole of the cone crusher, which has the following beneficial effects:
1. according to the automatic setting method of the discharge hole of the cone crusher, the existing setting method of the discharge hole is firstly required to be provided with a complex measuring device to actually measure the size of the discharge hole, and then the size of the discharge hole is regulated according to the measured value; according to the invention, theoretical calculation is not needed in the PLC, the position of the movable cone assembly corresponding to the target discharge hole is calculated by reversely pushing according to the working condition and the structural characteristics of the cone crusher, and the height of the movable cone assembly is directly controlled according to the theoretical calculation value, so that the setting of the discharge hole is realized, a complex measuring device is not needed to be configured, repeated measurement is not needed, the cost of manpower and material resources is greatly reduced, and the structure of the crusher is simplified. Meanwhile, human factor interference is completely eliminated, the setting precision of the target discharge port is high, and the error is controllable.
2. According to the automatic setting method for the material outlet of the cone crusher, the position height of the movable cone assembly corresponding to the target material outlet is found and set by utilizing the mathematical principle that the linear distance between two points is shortest, the related calculation logic, principle and operation process are simple and clear, no complex programming language is needed, the memory required in the operation process is small, and only the calculation program with an input interface, the geometric characteristic parameter and the working condition parameter are written in the PLC of the cone crusher, so that data input, mathematical operation and corresponding instruction output can be completed without adding additional software equipment. Because the built-in program and related parameters are written into the PLC in advance, two steps of cavity type curve coordinates and target discharge port sizes are selected only through a PLC operation interface in actual operation, and the method is simple and convenient.
3. According to the automatic setting method for the discharge opening of the cone crusher, the actuator for controlling the height of the movable cone assembly is a hydraulic system of the crusher, other power assisting devices are not needed to be additionally arranged, and the automatic setting function of the discharge opening can be realized on the premise that the structure of the cone crusher is not changed and the hardware cost of the cone crusher is not increased.
Drawings
FIG. 1 is a computational flow diagram of the present invention;
FIG. 2 is a schematic diagram of a detailed parameter architecture in accordance with the present invention;
FIG. 3 is a graph of the cavity pattern to be extracted in accordance with the present invention;
fig. 4 is a graph of the cavity pattern after discretization in the practice of the invention.
In the figure: 1. a main shaft; 2. a movable cone; 3. eccentric steel sleeve; 4. eccentric copper sleeve; 5. a hydraulic cylinder; 6. a piston; 7. a hydraulic oil station; 8. a PLC; 9. a lower frame; 10. a movable cone lining plate; 11. a fixed cone lining plate; 12. an upper frame; 001. a movable cone assembly; 002. a lower frame assembly; 003. a hydraulic system; 004. an upper housing assembly; 101. a dynamic cone profile curve; 102. a conical profile curve is determined; 201. discrete points of the movable cone lining plate; 202. discrete points of the fixed cone lining plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-4, an automatic setting method for a discharge opening of a cone crusher mainly utilizes the existing PLC8 and hydraulic system 003 of the cone crusher to realize the automatic setting of the discharge opening of the cone crusher according to the working parameters and geometric characteristics of the cone crusher.
In this example, before acquiring the calculation data, the coordinate system is unified, specifically, the center point of the bottom of the hydraulic cylinder 5 is taken as the origin of the coordinate system, the horizontal right direction is taken as the positive direction of the x axis of the coordinate system, and the vertical upward direction is taken as the positive direction of the y axis of the coordinate system, so as to extract the data. Specific data to be extracted: with the precession angle phi of the moving cone assembly 001, the eccentricity epsilon of the moving cone assembly 001, the height H of the moving cone assembly 001 0 Cavity curve (x) of dynamic cone liner 10 vi(t) ，y vi(t) ) 101, fixed coneCavity curve of liner 11 (x sj(t) ，y sj(t) ) 102, target discharge opening size C 0 The method comprises the steps of carrying out a first treatment on the surface of the The movable cone assembly 001 consists of a main shaft 1, a movable cone 2 and a movable cone lining plate 10; the fixed cone lining plate 11 and the upper frame 12 together form an upper frame assembly 004 of the cone crusher.
Extracting dynamic cone lining board cavity curve (x) vi(t) ，y vi(t) ) 101 and fixed cone liner cavity curve (x sj(t) ，y sj(t) ) 102, the following rules are followed:
(1) The lining plate is worn continuously along with time in the using process, the cavity curve of the cone crusher is a function of the total working time t, and the specific form of the function is determined by fitting industrial test data;
(2) Extracting coordinates of two end points of the straight line at the straight line part of the cavity;
(3) And extracting two endpoints of the arc, the circle center of the arc and the diameter of the arc from the arc part of the cavity.
Before the hydraulic system 003 starts to act to adjust the height of the movable cone assembly 001, the hydraulic system 003 is in an unloading state, the piston 6 and the movable cone lining plate 10 are in a lower limit state, and the height H of the movable cone is recorded 0 At a minimum value; at this time, the cavity curve of the movable cone liner 10 is defined by the coordinates (x vi(t) ，y vi(t) ) 101, the cavity curve of the fixed cone liner 11 is represented by coordinates (x sj(t) ，y sj(t) ) 102. According to the equation, the dynamic cone lining plate cavity curve (x vi(t) ，y vi(t) ) 101 into M moving cone liner discrete points (X) vi(t) ，Y vi(t) ) 201; then the cavity curve (x) of the fixed cone lining plate sj(t) ，y sj(t) ) 102 into N fixed cone liner discrete points (X) sj(t） ，Y sj(t) ) 202; in order to ensure the accuracy of the calculation result, the values of M and N are not smaller than 100. Each discrete point (X) of the fixed cone lining board is taken out in turn sj(t) ，Y sj(t) ) 202, calculating the discrete point (X) between the two points and each movable cone lining plate according to the following two-point interval formula vi(t) ，Y vi(t) ) Distance L of 201 ij ：
Adopting counting rules from top to bottom, L ij Representing the discrete points of the movable cone lining board (X) vi(t) ，Y vi(t) ) 201 from the discrete point (X sj(t) ，Y sj(t) ) 202, the distance of the j-th point. L corresponding to different i and j ij Store into array { L ] ij In }. Then to two-dimensional array { L ] ij Fetch its minimum value L min Minimum value L min The size C of the discharge outlet of the crusher to be calculated is obtained. And judging whether the discharge port is a target discharge port according to the following formula:
|C 0 -C|≤0.1
if the inequality is satisfied, the discharge outlet at the moment is the target discharge outlet C 0 The calculation is ended. If the inequality is not satisfied, i.e. the current discharge outlet is not the target discharge outlet C 0 The C value needs to be recalculated.
In the next calculation, the height H of the movable cone assembly 001 is updated by taking delta H as increment 0 The method comprises the following steps:
H 0 ＝H 0 +ΔH
ΔH is positive, preferably 0.5 or 1, where the corresponding piston 6 is at the bottom and can only rise, the height H of the cone assembly 001 0 But can only be increased. Height value H of movable cone assembly 001 0 After the change, the discrete points (X vi(t) ，Y vi(t) ) 201 the precession angle phi and the eccentricity epsilon are determined by an eccentric steel sleeve 3 and an eccentric copper sleeve 4, and the eccentric steel sleeve 3 and the eccentric copper sleeve 4 are fixedly connected to a lower frame 9, so that the precession angle phi and the eccentricity epsilon cannot follow the height value H of the cone assembly 001 0 A change occurs. The precession angle phi is calculated using the eccentricity epsilon as a reference quantity. The movable cone lining plate 10 rotates, the maximum rotation angle is a precession angle phi, the movable cone lining plate 10 also moves horizontally in the vertical direction, and the translation amount of each time is delta H. According to the coordinate rotation transformation formula and the coordinate translation transformation formula, the discrete points (X) of the movable cone lining plate after the movable cone assembly 001 rises are obtained vi(t) ，Y vi(t) ) 201, further againUpdating array { L ] ij [ solution to L ] min And judging whether the current height corresponds to the target discharge opening according to the target discharge opening judgment inequality. Repeating the loop iterative calculation according to the method until the inequality is judged to be satisfied according to the target discharge opening, namely finding the height value H of the movable cone assembly 001 corresponding to the target discharge opening 0 Until that point.
In this example, the arithmetic program is written and implemented by the PLC 8. Firstly, a calculation program and an operation interface are written in a PLC8 according to the calculation logic and the algorithm, and the working parameters and the geometric characteristics which need to be input mainly comprise the eccentricity epsilon of the movable cone assembly 001 and the height H of the movable cone assembly 001 0 Cavity curve (x) of dynamic cone liner 10 vi(t) ，y vi(t) ) 101, cavity curve of fixed cone liner 11 (x sj(t) ，y sj(t) ) 102 and target tap size C 0 After receiving the calculation data, the PLC8 automatically calculates according to the program, and when the PLC8 calculates the height value H of the movable cone assembly 001 corresponding to the target discharge port 0 Then, the oil supply time is calculated according to the mathematical relationship among the flow, time, volume, area and height, the hydraulic oil station 7 quantitatively supplies hydraulic oil to the hydraulic cylinder 5 according to the oil supply time, and the hydraulic oil pushes the piston 6 to rise to H 0 The automatic setting of the discharge hole of the cone crusher is realized.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The automatic setting method for the discharge hole of the cone crusher is characterized by comprising the following steps of:
the first step: establishing a global coordinate system; the global coordinate system in the first step takes the bottom center point of the hydraulic cylinder (5) as the origin of the coordinate system, the horizontal right direction is the positive direction of the x axis of the coordinate system, and the vertical upward direction is the positive direction of the y axis of the coordinate system;
and a second step of: extracting working parameters and geometric parameters of the cone crusher according to working conditions of the cone crusher, and unifying geometric dimension characteristics of the cone crusher to a global coordinate system for description; the working parameters and the geometric parameters in the second step comprise the precession angle of a movable cone assembly (001), the eccentricity of the movable cone assembly (001), the height of the movable cone assembly (001), a movable cone lining plate cavity curve (101), a fixed cone lining plate cavity curve (102) and the size of a target discharge hole;
and a third step of: according to the working parameters and the geometric parameters of the cone crusher, the size of a discharge opening of the cone crusher is calculated by combining a built-in algorithm; the built-in algorithm in the third step specifically comprises the following steps:
1. dispersing a dynamic cone lining plate cavity curve (101) of the cone crusher into a plurality of dynamic cone lining plate dispersing points (201);
2. dispersing a fixed cone lining plate cavity curve (102) of the cone crusher into a plurality of fixed cone lining plate discrete points (202);
3. sequentially taking each discrete point (202) of the fixed cone lining plate, respectively calculating the distance between the discrete point and each discrete point (201) of the movable cone lining plate, storing the discrete point into a two-dimensional array, and taking out the minimum value of the two-dimensional array, wherein the minimum value is the calculated size of the discharge opening;
fourth step: comparing the size of the discharge opening with the size of the target discharge opening, if the difference between the size of the discharge opening and the size of the target discharge opening meets the requirement, recording the height value at the moment, if the difference between the size of the discharge opening and the size of the target discharge opening does not meet the requirement, adding an increment to the existing height, changing the value of the height, and repeating the second step, the third step and the fourth step until the difference between the size of the discharge opening and the size of the target discharge opening meets the requirement;
fifth step: and (3) lifting the movable cone assembly (001) to the updated height according to the calculation result of the fourth step.
2. The automatic setting method for a discharge port of a cone crusher according to claim 1, characterized by: the following rules are followed when extracting the dynamic cone lining plate cavity curve (101) and the fixed cone lining plate cavity curve (102):
1. the lining plate is worn continuously along with time in the using process, the cavity curve of the cone crusher is a function of the total working time, and the specific form of the function is determined by fitting industrial test data;
2. extracting coordinates of two end points of the straight line at the straight line part of the cavity;
3. and extracting two endpoints of the arc, the circle center of the arc and the diameter of the arc from the arc part of the cavity.
3. The automatic setting method for a discharge port of a cone crusher according to claim 1, characterized by: the movable cone assembly (001) consists of a main shaft (1), a movable cone (2) and a movable cone lining plate (10), and the fixed cone lining plate (11) and the upper frame (12) together form an upper frame assembly (004) of the cone crusher.
4. The automatic setting method for a discharge port of a cone crusher according to claim 1, characterized by: in the fourth step, the difference between the size of the discharge opening and the size of the target discharge opening is required to be less than or equal to zero point one.
5. The automatic setting method for a discharge port of a cone crusher according to claim 1, characterized by: the working parameters and the geometric parameters of the cone crusher are input and selected, and the calculation is carried out by adopting a PLC (8) of the cone crusher.
6. The automatic setting method for a discharge port of a cone crusher according to claim 1, characterized by: the height content of the lifting adjusting movable cone assembly (001) in the fifth step is as follows: the equipment for lifting and adjusting the height of the movable cone assembly (001) is a hydraulic system (003), after the height is calculated, oil supply time is calculated according to mathematical relations among flow, time, volume, area and height, a hydraulic oil station (7) quantitatively supplies hydraulic oil to a hydraulic cylinder (5) according to the oil supply time, and a piston (6) is lifted to an updated height under the pushing of the hydraulic oil.
7. The automatic setting method for a discharge port of a cone crusher according to claim 1, characterized by: the increment is 0.5 or 1.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210815079.8A CN115283059B (en) | 2022-07-12 | 2022-07-12 | Automatic setting method for discharge hole of cone crusher |
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| CN202210815079.8A CN115283059B (en) | 2022-07-12 | 2022-07-12 | Automatic setting method for discharge hole of cone crusher |
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| CN117540508B (en) * | 2024-01-10 | 2024-09-17 | 南昌矿机集团股份有限公司 | Cone crusher productivity analysis method considering limit compression state |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1462895A (en) * | 1966-02-25 | 1966-12-16 | Vsesoiuzny Nautchno I I Pi Mek | Device for adjusting the outlet air gap of a gyratory crusher |
| CN201101976Y (en) * | 2007-08-31 | 2008-08-20 | 上海慧桥电气自动化有限公司 | Automatic control device of spindle breaker discharge port |
| CN106216078A (en) * | 2016-08-11 | 2016-12-14 | 中信重工机械股份有限公司 | Control method for discharge port of multi-hydraulic-cylinder cone crusher |
| CN107597408A (en) * | 2017-10-31 | 2018-01-19 | 徐工集团工程机械有限公司 | Cone crusher discharge gate control system, method and cone crusher |
| CN114054131A (en) * | 2021-10-25 | 2022-02-18 | 南昌矿机集团股份有限公司 | Double-crushing-cavity cone crusher and crushing method |
-
2022
- 2022-07-12 CN CN202210815079.8A patent/CN115283059B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1462895A (en) * | 1966-02-25 | 1966-12-16 | Vsesoiuzny Nautchno I I Pi Mek | Device for adjusting the outlet air gap of a gyratory crusher |
| CN201101976Y (en) * | 2007-08-31 | 2008-08-20 | 上海慧桥电气自动化有限公司 | Automatic control device of spindle breaker discharge port |
| CN106216078A (en) * | 2016-08-11 | 2016-12-14 | 中信重工机械股份有限公司 | Control method for discharge port of multi-hydraulic-cylinder cone crusher |
| CN107597408A (en) * | 2017-10-31 | 2018-01-19 | 徐工集团工程机械有限公司 | Cone crusher discharge gate control system, method and cone crusher |
| CN114054131A (en) * | 2021-10-25 | 2022-02-18 | 南昌矿机集团股份有限公司 | Double-crushing-cavity cone crusher and crushing method |
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