Material taking flow control method of semi-closed spiral material taking equipment

Abstract

The invention discloses a material taking flow control method for semi-closed spiral material taking equipment, relates to the technical field of material conveying, and is used for controlling the semi-closed spiral material taking equipment. The target conveying amount of the horizontal material collecting mechanism and the target rotating speed of rotating blades of the horizontal material collecting mechanism are set, and the target filling rate of the horizontal material collecting mechanism is calculated based on the target conveying amount and the target rotating speed; according to the flowability of the target material, initial state adjustment of the semi-closed spiral material taking equipment is completed, and a theoretical current value of a driving motor of a horizontal material collecting mechanism in the initial state is obtained through calculation; and dynamically adjusting the rotating speed of the rotating blade of the horizontal material collecting mechanism based on current value comparison. The semi-closed spiral material taking device can be intelligently controlled, and stable material taking operation is achieved.

Description

Technical Field

[0001] This application relates to the technical field of material transportation, and particularly relates to a method for controlling the feeding flow rate of a semi-closed spiral feeding device. Background Art

[0002] A spiral feeding device is a machine that uses the rotation of a spiral to lift materials, and in actual applications, semi-closed spiral feeding devices are more common. Currently, a semi-closed spiral feeding device generally includes a vertical material collecting mechanism and a horizontal material collecting mechanism. The horizontal material collecting mechanism includes components such as a mounting seat, a rotating shaft, spiral blades, a driving member, and a material blocking member. The mounting seat is fixedly connected to the lower end of the vertical material collecting mechanism. The rotating shaft is rotatably arranged in the mounting seat. The spiral blades are fixedly connected to the rotating shaft. The material blocking member is rotatably connected to the rotating shaft. The material blocking member is arranged along the length direction of the spiral blades and semi-wraps the spiral blades to form an opening for feeding. The vertical material collecting mechanism includes components such as a vertical lifting cylinder, a rotating shaft, spiral blades, and a reduction motor.

[0003] For current semi-closed spiral feeding devices, they are generally used for surface material feeding. If the semi-closed spiral feeding device is buried too deep in the material, situations such as too high a filling rate, motor overload, and jamming of the spiral blades will occur. Moreover, for materials with poor fluidity, they perform poorly in dealing with material cave-ins and often exhibit unstable flow rates. Therefore, how to achieve intelligent control of semi-closed spiral feeding devices has become an urgent problem to be solved currently. Summary of the Invention

[0004] This application provides a method for controlling the feeding flow rate of a semi-closed spiral feeding device, which can perform intelligent control of the semi-closed spiral feeding device and achieve stable feeding operations.

[0005] In a first aspect, an embodiment of this application provides a method for controlling the feeding flow rate of a semi-closed spiral feeding device for controlling a semi-closed spiral feeding device. The method for controlling the feeding flow rate of the semi-closed spiral feeding device includes: Setting the target conveying volume of the horizontal material collecting mechanism and the target rotational speed of the rotating blades of the horizontal material collecting mechanism, and calculating the target filling rate of the horizontal material collecting mechanism based on the target conveying volume and the target rotational speed; According to the fluidity of the target material, calculating the target rotation angle of the material blocking member based on the target filling rate to adjust the rotation angle of the material blocking member, or calculating the target sinking cutting amount of the horizontal material collecting mechanism based on the target filling rate to adjust the sinking cutting amount of the horizontal material collecting mechanism, completing the initial state adjustment of the semi-closed spiral feeding device, and calculating the theoretical current value of the driving motor of the horizontal material collecting mechanism in the initial state; After the semi-closed spiral feeding device is actually applied in the initial state, obtain the actual current value of the driving motor of the horizontal aggregate mechanism, and compare it with the theoretical current value to dynamically adjust the rotation speed of the rotating blades of the horizontal aggregate mechanism.

[0006] Combined with the first aspect, in one embodiment, the target filling rate of the horizontal aggregate mechanism calculated based on the target conveying volume and the target rotation speed is specifically calculated as follows:

[0007] Wherein, represents the target conveying volume of the horizontal aggregate mechanism, represents the inclination correction coefficient of the semi-closed spiral feeding device, represents the pitch coefficient of the horizontal aggregate mechanism, represents the bulk density of the target material, represents the target filling rate of the horizontal aggregate mechanism, represents the diameter of the rotating blades of the horizontal aggregate mechanism, represents the target rotation speed of the rotating blades of the horizontal aggregate mechanism.

[0008] Combined with the first aspect, in one embodiment, according to the fluidity of the target material, based on the target filling rate, calculate the target rotation angle of the baffle to adjust the rotation angle of the baffle, or calculate the target sinking cutting amount of the horizontal aggregate mechanism based on the target filling rate to adjust the sinking cutting amount of the horizontal aggregate mechanism, complete the adjustment of the initial state of the semi-closed spiral feeding device, and calculate the theoretical current value of the driving motor of the horizontal aggregate mechanism in the initial state, specifically including: Based on the type of the target material, judge the fluidity of the target material: If the fluidity is better, calculate the target rotation angle of the baffle based on the target filling rate, and adjust the rotation angle of the baffle according to the calculated target rotation angle to complete the adjustment of the initial state of the semi-closed spiral feeding device, and calculate the theoretical current value of the driving motor of the horizontal aggregate mechanism in the initial state; If the fluidity is poor, calculate the target sinking cutting amount of the horizontal aggregate mechanism based on the target filling rate, and adjust the sinking cutting amount of the horizontal aggregate mechanism according to the calculated target sinking cutting amount to complete the adjustment of the initial state of the semi-closed spiral feeding device, and calculate the theoretical current value of the driving motor of the horizontal aggregate mechanism in the initial state.

[0009] Combined with the first aspect, in one embodiment, calculating the target rotation angle of the baffle based on the target filling rate specifically includes: Calculate the material filling area of the horizontal aggregate mechanism when adjusting the rotation angle of the baffle. Specifically:

[0010] Among them, represents the material filling area of the horizontal aggregate mechanism when adjusting the rotation angle of the baffle, represents the diameter of the rotating blade of the horizontal aggregate mechanism, represents the target rotation angle of the baffle, represents the natural angle of repose of the target material; Based on the calculated material filling area and the target filling rate, calculate the target rotation angle of the baffle. Specifically:

[0011] Among them, represents the target filling rate of the horizontal aggregate mechanism.

[0012] Combined with the first aspect, in an embodiment, after adjusting the rotation angle of the baffle to complete the initial state adjustment of the semi-closed spiral reclaimer, for the theoretical current value of the driving motor of the horizontal aggregate mechanism, the specific calculation method is:

[0013] Among them, represents the theoretical current value of the driving motor of the horizontal aggregate mechanism, represents the power reserve coefficient, represents the conveying length of the horizontal aggregate mechanism, represents the inclination correction coefficient of the semi-closed spiral reclaimer, represents the pitch coefficient of the horizontal aggregate mechanism, represents the bulk density of the target material, represents the target rotational speed of the horizontal aggregate mechanism, represents the resistance coefficient of the target material, represents the voltage of the driving motor of the horizontal aggregate mechanism, represents the total efficiency of the driving motor of the horizontal aggregate mechanism, represents the power factor of the driving motor of the horizontal aggregate mechanism.

[0014] Combined with the first aspect, in an embodiment, the target sinking cutting amount of the horizontal aggregate mechanism calculated based on the target filling rate specifically includes: Calculate the material filling area of the horizontal aggregate mechanism when adjusting the sinking cutting amount of the horizontal aggregate mechanism. Specifically:

[0015] Among them, It represents the material filling area of the horizontal aggregate mechanism when adjusting the downward cutting amount of the horizontal aggregate mechanism. It represents the diameter of the rotating blade of the horizontal aggregate mechanism. It represents the angle between the edge of the material baffle and the horizontal plane, that is, the rotation angle of the material baffle. It represents the natural angle of repose of the target material. It represents the target downward cutting amount of the horizontal aggregate mechanism. Based on the calculated material filling area and the target filling rate, calculate the target downward cutting amount of the horizontal aggregate mechanism. Specifically:

[0016] Among them, It represents the target filling rate of the horizontal aggregate mechanism.

[0017] Combined with the first aspect, in an implementation manner, after the initial state adjustment of the semi-closed spiral reclaimer is completed by adjusting the downward cutting amount of the horizontal aggregate mechanism, for the theoretical current value of the driving motor of the horizontal aggregate mechanism, the specific calculation method is:

[0018] Among them, It represents the theoretical current value of the driving motor of the horizontal aggregate mechanism. It represents the power reserve coefficient. It represents the conveying length of the horizontal aggregate mechanism. It represents the inclination correction coefficient of the semi-closed spiral reclaimer. It represents the pitch coefficient of the horizontal aggregate mechanism. It represents the bulk density of the target material. It represents the target rotational speed of the horizontal aggregate mechanism. It represents the resistance coefficient of the target material. It represents the voltage of the driving motor of the horizontal aggregate mechanism. It represents the total efficiency of the driving motor of the horizontal aggregate mechanism. It represents the power factor of the driving motor of the horizontal aggregate mechanism.

[0019] Combined with the first aspect, in an implementation manner, after the semi-closed spiral reclaimer is actually applied in the initial state, obtain the actual current value of the driving motor of the horizontal aggregate mechanism and compare it with the theoretical current value to dynamically adjust the rotational speed of the rotating blade of the horizontal aggregate mechanism. Specifically, it includes: After the semi-closed spiral reclaimer is actually applied in the initial state, periodically obtain the actual current value of the driving motor of the horizontal aggregate mechanism, and compare the obtained actual current value with the theoretical current value to determine whether the difference is within the preset range: If not, compare the actual current value with the theoretical current value: - When the actual current value is greater than the theoretical current value, reduce the rotational speed of the rotating blades of the horizontal aggregate mechanism by a set step, and obtain the actual current value of the driving motor of the horizontal aggregate mechanism again. Compare the obtained actual current value with the theoretical current value again, and determine again whether the difference is within the preset range. Repeat this cycle until the difference between the obtained actual current value and the theoretical current value is within the preset range; - When the actual current value is less than the theoretical current value, increase the rotational speed of the rotating blades of the horizontal aggregate mechanism by a set step, and obtain the actual current value of the driving motor of the horizontal aggregate mechanism again. Compare the obtained actual current value with the theoretical current value again, and determine again whether the difference is within the preset range. Repeat this cycle until the difference between the obtained actual current value and the theoretical current value is within the preset range; If so, do not make any treatment.

[0020] Combined with the first aspect, in one embodiment, An absolute encoder is provided on the baffle; The absolute encoder is used to detect the rotation angle of the baffle to monitor whether the baffle is adjusted in place according to the target rotation angle.

[0021] Combined with the first aspect, in one embodiment, An angle sensor is provided on the horizontal aggregate mechanism; The angle sensor is used to detect the sinking cutting amount of the horizontal aggregate mechanism to monitor whether it is adjusted in place according to the target sinking cutting amount.

[0022] The beneficial effects brought by the technical solution provided in the embodiments of the present application include: By adjusting the rotation angle of the baffle or the sinking cutting amount of the horizontal aggregate mechanism, the initial state adjustment of the semi-closed spiral reclaimer corresponding to the target conveying volume is completed, and during actual use, based on the difference between the actual current value and the theoretical current value of the driving motor of the horizontal aggregate mechanism, the rotational speed of the rotating blades of the horizontal aggregate mechanism is adjusted, so that the driving motor of the horizontal aggregate mechanism operates at the theoretical current value and rotates at the target power, enabling the semi-closed spiral reclaimer to perform the reclaiming operation according to the target conveying volume, effectively realizing the intelligent control of the semi-closed spiral reclaimer and ensuring the stable progress of the reclaiming operation. Description of the Drawings

[0023] Figure 1 It is a schematic flowchart of the reclaiming flow control method of the semi-closed spiral reclaimer of the present application; Figure 2 It is a cross-sectional view of the horizontal aggregate mechanism when adjusting the rotation angle of the baffle; Figure 3 Schematic cross-sectional view of the horizontal aggregate mechanism when adjusting the sinking cutting amount. Specific implementation mode

[0024] In order to enable those skilled in the art to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of this application.

[0025] To make the purpose, technical solution and advantages of this application clearer, the embodiments of this application will be further described in detail below with reference to the accompanying drawings.

[0026] In a first aspect, an embodiment of this application provides a method for controlling the feeding flow rate of a semi-closed spiral feeding device, which is used to control the semi-closed spiral feeding device. By initially adjusting the rotation angle of the baffle or the sinking cutting amount of the horizontal aggregate mechanism, and adjusting the rotation speed of the rotating blades of the horizontal aggregate mechanism during actual use, the semi-closed spiral feeding device can perform feeding operations according to the target conveying volume, effectively realizing the intelligent control of the semi-closed spiral feeding device.

[0027] In one embodiment, refer to Figure 1 , Figure 1 is a schematic flow chart of the method for controlling the feeding flow rate of the semi-closed spiral feeding device of this application. As Figure 1 shown, the method for controlling the feeding flow rate of the semi-closed spiral feeding device includes: S1: Set the target conveying volume of the horizontal aggregate mechanism and the target rotation speed of the rotating blades of the horizontal aggregate mechanism, and calculate the target filling rate of the horizontal aggregate mechanism based on the target conveying volume and the target rotation speed; That is, for the semi-closed spiral feeding device in the default working state, according to work experience, set the target conveying volume of the horizontal aggregate mechanism and the target rotation speed of the rotating blades of the horizontal aggregate mechanism, and then calculate the target filling rate of the horizontal aggregate mechanism based on the set target conveying volume and target rotation speed; S2: Based on the fluidity of the target material, calculate the target rotation angle of the baffle to adjust the rotation angle of the baffle based on the target filling rate, or calculate the target sinking cutting amount of the horizontal aggregate mechanism to adjust the sinking cutting amount of the horizontal aggregate mechanism based on the target filling rate, complete the initial state adjustment of the semi-closed spiral feeding device, and calculate the theoretical current value of the driving motor of the horizontal aggregate mechanism in the initial state; S3: After the semi-enclosed spiral feeding equipment is actually used in the initial state, the actual current value of the driving motor of the horizontal feeding mechanism is obtained, and compared with the theoretical current value to dynamically adjust the rotation speed of the rotating blades of the horizontal feeding mechanism.

[0028] Furthermore, in one embodiment, the target filling rate of the horizontal aggregate mechanism is calculated based on the target conveying volume and the target rotational speed. The specific calculation method is:

[0029] in, Indicates the target conveying volume of the horizontal aggregate mechanism, Indicates the inclination correction coefficient of the semi-enclosed spiral reclaimer, Indicates the pitch coefficient of the horizontal aggregate mechanism, with a value range of 0.6~0.9. Indicates the bulk density of the target material, represents the target filling rate of the horizontal aggregate mechanism, Indicates the diameter of the rotating blade of the horizontal aggregate mechanism, Represents the target speed of the horizontal collection mechanism's rotating blades. In this technical field, the filling rate is also referred to as the filling coefficient. Based on this formula, adjusting the filling rate and / or the rotating blade speed can adjust the conveying rate. In this application, the target material is the material being conveyed by the semi-enclosed spiral reclaimer during the reclaiming operation.

[0030] The calculation principle of the above formula is explained below.

[0031] According to the geometric relationship, the conveying capacity of the horizontal aggregate mechanism is: ,in, Indicates the cross-sectional area of the target material, Indicates the axial conveying speed of the target material; For the cross-sectional area of the target material:

[0032] Axial conveying speed for target material:

[0033] Combining the above formulas, we can get: .

[0034] It should be noted that in actual applications, users will adjust the conveying capacity of the semi-enclosed spiral reclaiming equipment according to operational requirements to match the rear production needs. The adjustment of the conveying capacity of the semi-enclosed spiral reclaiming equipment mainly depends on the adjustment of the conveying volume of the horizontal aggregate mechanism. The conveying volume of the vertical aggregate mechanism only needs to be greater than or equal to the conveying volume of the horizontal aggregate mechanism.

[0035] For the conveying capacity of the vertical aggregate mechanism, the calculation method is:

[0036] Among them, represents the conveying volume of the vertical aggregate mechanism, represents the filling rate of the vertical aggregate mechanism, represents the vertical lifting speed of the vertical aggregate mechanism, represents the diameter of the rotating blades of the vertical aggregate mechanism, represents the diameter of the rotating shaft of the vertical aggregate mechanism.

[0037] Furthermore, in one embodiment, according to the fluidity of the target material, the target rotation angle of the baffle is calculated based on the target filling rate to adjust the rotation angle of the baffle, or the target sinking cutting amount of the horizontal aggregate mechanism is calculated based on the target filling rate to adjust the sinking cutting amount of the horizontal aggregate mechanism, completing the initial state adjustment of the semi-closed spiral reclaimer, and calculating the theoretical current value of the drive motor of the horizontal aggregate mechanism in the initial state, specifically including: Judging the fluidity of the target material based on the type of the target material: If the fluidity is better, the target rotation angle of the baffle is calculated based on the target filling rate, and the rotation angle of the baffle is adjusted according to the calculated target rotation angle, completing the initial state adjustment of the semi-closed spiral reclaimer, and calculating the theoretical current value of the drive motor of the horizontal aggregate mechanism in the initial state; If the fluidity is poor, the target sinking cutting amount of the horizontal aggregate mechanism is calculated based on the target filling rate, and the sinking cutting amount of the horizontal aggregate mechanism is adjusted according to the calculated target sinking cutting amount, completing the initial state adjustment of the semi-closed spiral reclaimer, and calculating the theoretical current value of the drive motor of the horizontal aggregate mechanism in the initial state. Among them, materials with better fluidity refer to materials such as soybeans and corn with smaller particle diameters and better self-flowability, and materials with poor fluidity refer to materials such as coal with larger particle diameters and poor self-flowability.

[0038] It should be noted that for the horizontal aggregate mechanism, the feeding amount of the horizontal aggregate mechanism can be changed by adjusting the rotation angle of the baffle, that is, by controlling the flipping of the baffle, so as to change the filling rate of the horizontal aggregate mechanism; or, the feeding amount of the horizontal aggregate mechanism can be changed by adjusting the sinking cutting amount of the horizontal aggregate mechanism, so as to change the filling rate of the horizontal aggregate mechanism. Therefore, in practical applications, when the fluidity of the target material is good, after setting the target conveying amount of the horizontal aggregate mechanism and the target rotation speed of the rotating blades of the horizontal aggregate mechanism, by adjusting the rotation angle of the baffle, the filling rate of the horizontal aggregate mechanism is changed, so that the horizontal aggregate mechanism can take materials according to the target conveying amount; when the fluidity of the target material is poor, after setting the target conveying amount of the horizontal aggregate mechanism and the target rotation speed of the rotating blades of the horizontal aggregate mechanism, by adjusting the sinking cutting amount of the horizontal aggregate mechanism, the filling rate of the horizontal aggregate mechanism is changed, so that the horizontal aggregate mechanism can take materials according to the target conveying amount.

[0039] Further, as shown in Figure 2 which is a schematic cross-sectional view of the horizontal aggregate mechanism. Among them, calculating the target rotation angle of the baffle based on the target filling rate specifically includes: a1: Calculate the material filling area of the horizontal aggregate mechanism when adjusting the rotation angle of the baffle. Specifically:

[0040] Among them, represents the material filling area of the horizontal aggregate mechanism when adjusting the rotation angle of the baffle, represents the diameter of the rotating blade of the horizontal aggregate mechanism, represents the target rotation angle of the baffle, obtained based on the angle between the edge of the baffle and the horizontal plane, represents the natural stacking angle of the target material; Figure 2 In the shaded part where the diagonal line is located is the material filling area of the horizontal aggregate mechanism when adjusting the rotation angle of the baffle; .

[0041] Through steps a1 and a2, the target rotation angle corresponding to adjusting the rotation angle of the baffle can be calculated for the semi-closed spiral material taking device in the default working state after setting the target conveying amount of the horizontal aggregate mechanism and the target rotation speed of the rotating blades of the horizontal aggregate mechanism, so as to realize the adjustment of the baffle. For the same kind of material, in the case of no caking, the natural stacking angle of the material is a fixed value. Therefore, only by changing the rotation angle of the baffle can the filling rate be changed and the flow rate be adjusted.

[0042] Further, after the rotation angle of the material baffle is adjusted to complete the initial state adjustment of the semi-closed spiral material taking device, for the theoretical current value of the driving motor of the horizontal material collecting mechanism, the specific calculation method is as follows:

[0043] Among them, represents the theoretical current value of the driving motor of the horizontal material collecting mechanism, represents the power reserve coefficient, and the value range is 1.2 to 1.4, represents the conveying length of the horizontal material collecting mechanism, represents the inclination correction coefficient of the semi-closed spiral material taking device, represents the pitch coefficient of the horizontal material collecting mechanism, represents the bulk density of the target material, represents the target rotational speed of the horizontal material collecting mechanism, represents the resistance coefficient of the target material, which can be obtained by querying the material manual, represents the voltage of the driving motor of the horizontal material collecting mechanism, represents the total efficiency of the driving motor of the horizontal material collecting mechanism, and the value range is 0.9 to 0.94, represents the power factor of the driving motor of the horizontal material collecting mechanism.

[0044] For the horizontal material collecting mechanism, as the conveying volume changes, the shaft power and load current of the driving motor of the horizontal material collecting mechanism will also change accordingly. Therefore, when the conveying volume of the horizontal material collecting mechanism is a fixed value, the load current of the driving motor of the horizontal material collecting mechanism should also be a fixed value. Therefore, after setting the target conveying volume of the horizontal material collecting mechanism and the target rotational speed of the rotating blades of the horizontal material collecting mechanism, and calculating the rotation angle of the material baffle, the theoretical current value of the driving motor of the horizontal material collecting mechanism can be calculated. When the semi-closed spiral material taking device actually works, the actual current value of the driving motor of the horizontal material collecting mechanism should be equal to the theoretical current value.

[0045] The following explains the calculation principle of the theoretical current value of the driving motor of the horizontal material collecting mechanism.

[0046] Since the calculation of various resistances of the horizontal material collecting mechanism is relatively complex, it can be simplified into two parts. One is the shaft power required for the material to run , and the other is the power required for the horizontal material collecting mechanism to rotate idly . Specifically,

[0047]

[0048] Among them, Represents the target conveying volume of the horizontal aggregate mechanism; Obtain the net driving power of the horizontal aggregate mechanism :

[0049] The driving motor power of the horizontal aggregate mechanism is :

[0050] Calculate the relationship between the current and the conveying volume: .

[0051] Based on this, the theoretical current value of the driving motor of the horizontal aggregate mechanism can be obtained after adjusting the rotation angle of the baffle.

[0052] Furthermore, referring to Figure 3 shown, which is a cross-sectional schematic diagram of the horizontal aggregate mechanism. Among them, the target sinking cutting amount of the horizontal aggregate mechanism is calculated based on the target filling rate, specifically including: b1: Calculate the material filling area of the horizontal aggregate mechanism when adjusting the sinking cutting amount of the horizontal aggregate mechanism. Specifically:

[0053] Among them, represents the material filling area of the horizontal aggregate mechanism when adjusting the sinking cutting amount of the horizontal aggregate mechanism, represents the diameter of the rotating blade of the horizontal aggregate mechanism, represents the angle between the edge of the baffle and the horizontal plane, that is, the rotation angle of the baffle. At this time is a fixed value, represents the natural angle of repose of the target material, represents the target sinking cutting amount of the horizontal aggregate mechanism; Figure 3 In, the shaded part where the diagonal line is located is the material filling area of the horizontal aggregate mechanism when adjusting the sinking cutting amount; b2: Based on the calculated material filling area and the target filling rate, calculate the target sinking cutting amount of the horizontal aggregate mechanism. Specifically: .

[0054] Through steps b1 and b2, it is possible to calculate the target sinking cutting amount corresponding to the adjustment of the sinking cutting amount of the horizontal aggregate mechanism after setting the target conveying amount of the horizontal aggregate mechanism and the target rotational speed of the rotating blades of the horizontal aggregate mechanism for the semi-closed spiral material taking device in the default working state, thereby realizing the adjustment of the sinking cutting amount of the horizontal aggregate mechanism. For the same material, in the case of no caking, the natural angle of repose of the material is a fixed value. When the rotation angle of the baffle is fixed, only by changing the sinking cutting amount of the horizontal aggregate mechanism can the filling rate be changed to achieve flow regulation.

[0055] Furthermore, after the adjustment of the sinking cutting amount of the horizontal aggregate mechanism is completed and the initial state adjustment of the semi-closed spiral material taking device is completed, for the theoretical current value of the driving motor of the horizontal aggregate mechanism, the specific calculation method is as follows:

[0056] Among them, represents the theoretical current value of the driving motor of the horizontal aggregate mechanism, represents the power reserve coefficient, represents the conveying length of the horizontal aggregate mechanism, represents the inclination correction coefficient of the semi-closed spiral material taking device, represents the pitch coefficient of the horizontal aggregate mechanism, represents the bulk density of the target material, represents the target rotational speed of the horizontal aggregate mechanism, represents the resistance coefficient of the target material, represents the voltage of the driving motor of the horizontal aggregate mechanism, represents the total efficiency of the driving motor of the horizontal aggregate mechanism, represents the power factor of the driving motor of the horizontal aggregate mechanism.

[0057] It should be noted that after setting the target conveying amount of the horizontal aggregate mechanism and the target rotational speed of the rotating blades of the horizontal aggregate mechanism and adjusting the baffle to the target rotation angle, a theoretical current value of the driving motor of the horizontal aggregate mechanism can be calculated; or, after setting the target conveying amount of the horizontal aggregate mechanism and the target rotational speed of the rotating blades of the horizontal aggregate mechanism and adjusting the horizontal aggregate mechanism to the target sinking cutting amount, a theoretical current value of the driving motor of the horizontal aggregate mechanism can be calculated. And when the horizontal aggregate mechanism operates at the theoretical current value, at this time, the horizontal aggregate mechanism operates at the target power, and the corresponding conveying amount is the target conveying amount.

[0058] Furthermore, after the semi-closed spiral material taking device is actually applied in the initial state, obtaining the actual current value of the driving motor of the horizontal aggregate mechanism and comparing it with the theoretical current value to dynamically adjust the rotational speed of the rotating blades of the horizontal aggregate mechanism specifically includes: After the semi-closed spiral material taking device is actually applied in the initial state, periodically obtain the actual current value of the driving motor of the horizontal aggregate mechanism, and compare the obtained actual current value with the theoretical current value to determine whether the difference is within the preset range: If not, compare the magnitudes of the actual current value and the theoretical current value: - When the actual current value is greater than the theoretical current value, decrease the rotation speed of the rotating blades of the horizontal aggregate mechanism by a set step size, and obtain the actual current value of the driving motor of the horizontal aggregate mechanism again. Compare the obtained actual current value with the theoretical current value again, and determine again whether the difference is within the preset range. Repeat this cycle until the difference between the obtained actual current value and the theoretical current value is within the preset range; - When the actual current value is less than the theoretical current value, increase the rotation speed of the rotating blades of the horizontal aggregate mechanism by a set step size, and obtain the actual current value of the driving motor of the horizontal aggregate mechanism again. Compare the obtained actual current value with the theoretical current value again, and determine again whether the difference is within the preset range. Repeat this cycle until the difference between the obtained actual current value and the theoretical current value is within the preset range; If so, no processing is required.

[0059] Specifically, when the semi-closed spiral material taking device after the initial state adjustment is actually applied, in theory, the semi-closed spiral material taking device will operate at the target rotation speed, and the target rotation angle or the target sinking cutting amount. That is, in theory, the actual current value of the driving motor of the horizontal aggregate mechanism is equal to the theoretical current value. However, as the material taking progresses, the material will exert a certain force on the horizontal aggregate mechanism or be affected by factors such as vibration and material distribution. At this time, the rotation angle or the sinking cutting amount of the baffle of the horizontal aggregate mechanism will change, that is, the horizontal aggregate mechanism no longer operates at the target rotation angle or the target sinking cutting amount, but still operates at the target rotation speed, and the conveying capacity will change at this time; Referring to the theoretical current value calculation formula, as the rotation angle or the sinking cutting amount of the baffle changes, the calculation result of the current value will also change. Therefore, the actual current value of the driving motor measured at this time is no longer equal to the theoretical current value. Therefore, when comparing the actual current value with the theoretical current value at this time, if the error between the two is within the preset range, it indicates that the offset amount of the rotation angle or the sinking cutting amount of the baffle is within the acceptable range, and the actual conveying capacity of the horizontal aggregate mechanism is also within the acceptable range, then there is no need to control and adjust the horizontal aggregate mechanism.

[0060] When the error between the two is not within the preset range, it indicates that the offset amount of the rotation angle or the sinking cutting amount of the baffle is no longer within the acceptable range, and the offset amount of the rotation angle or the sinking cutting amount of the baffle is relatively large. At this time, it is necessary to control and adjust the horizontal aggregate mechanism. Referring to the calculation formula of the target filling rate:

[0061] According to the calculation principle of the above formula, it can be known that after the rotation angle of the baffle or the sinking cutting amount changes, the filling rate will change accordingly. When the rotation speed of the rotating blade remains unchanged, the conveying amount of the horizontal aggregate mechanism will change, and then there will be a deviation from the target conveying amount. At this time, to ensure that the actual conveying amount of the horizontal aggregate mechanism is close to or equal to the target conveying amount, when the filling rate changes, the rotation speed of the rotating blade can be adjusted so that the actual conveying amount of the horizontal aggregate mechanism is close to or equal to the target conveying amount, and then the horizontal aggregate mechanism can perform the feeding operation with a stable conveying amount. And because the current value of the driving motor is positively correlated with the rotation speed of the rotating blade, the current value of the driving motor can be changed while changing the rotation speed of the rotating blade, so that the current value of the driving motor is close to the theoretical current value, so that the horizontal aggregate mechanism operates at a power close to the target power, and the actual conveying amount of the horizontal aggregate mechanism is still close to or equal to the target conveying amount.

[0062] It should be noted that when comparing the actual current value with the theoretical current value, if the fluidity of the target material is better, after the rotation angle of the baffle is adjusted to complete the initial state adjustment of the semi-closed spiral feeding device, the calculated theoretical current value is compared with the actual current value; if the fluidity of the target material is poor, after the sinking cutting amount of the horizontal aggregate mechanism is adjusted to complete the initial state adjustment of the semi-closed spiral feeding device, the calculated theoretical current value is compared with the actual current value.

[0063] Furthermore, in one embodiment, an absolute encoder is provided on the baffle; the absolute encoder is used to detect the rotation angle of the baffle to monitor whether the baffle is adjusted in place according to the target rotation angle. An angle sensor is provided on the horizontal aggregate mechanism; the angle sensor is used to detect the sinking cutting amount of the horizontal aggregate mechanism to monitor whether it is adjusted in place according to the target sinking cutting amount.

[0064] The feeding flow control method of the semi-closed spiral feeding device in the embodiment of the present application adjusts the rotation angle of the baffle or the sinking cutting amount of the horizontal aggregate mechanism to complete the initial state adjustment of the semi-closed spiral feeding device corresponding to the target conveying amount, and based on the difference between the actual current value and the theoretical current value of the driving motor of the horizontal aggregate mechanism during actual use, adjusts the rotation speed of the rotating blade of the horizontal aggregate mechanism, so that the driving motor of the horizontal aggregate mechanism operates at the theoretical current value and operates at the target power, so that the semi-closed spiral feeding device can perform the feeding operation according to the target conveying amount, effectively realizing the intelligent control of the semi-closed spiral feeding device and achieving the stable progress of the feeding operation.

[0065] In the description of the specification, claims and the above-mentioned drawings of this application, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally further include steps or units not listed, or may optionally further include other steps or units inherent to these processes, methods, products or devices. Descriptions such as "first", "second" and "third" are used to distinguish different objects, etc., and do not represent a sequence, nor do they limit that "first", "second" and "third" are different types.

[0066] In the description of the embodiments of this application, words such as "exemplary", "for example" or "for instance" are used to indicate examples, illustrations or explanations. Any embodiment or design solution described as "exemplary", "for example" or "for instance" in the embodiments of this application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Rather, the use of words such as "exemplary", "for example" or "for instance" is intended to present relevant concepts in a specific manner.

[0067] In the description of the embodiments of this application, unless otherwise specified, " / " means "or". For example, A / B may mean A or B; "and / or" in the text is merely a description of the association relationship between associated objects, indicating that there can be three relationships. For example, A and / or B may mean: A exists alone, A and B exist simultaneously, and B exists alone. In addition, in the description of the embodiments of this application, "a plurality of" means two or more than two.

[0068] In some processes described in the embodiments of this application, a plurality of operations or steps appear in a specific order. However, it should be understood that these operations or steps may not be executed in the order in which they appear in the embodiments of this application or may be executed in parallel. The serial numbers of the operations are only used to distinguish different operations, and the serial numbers themselves do not represent any order of execution. In addition, these processes may include more or fewer operations, and these operations or steps may be executed in sequence or in parallel, and these operations or steps may be combined.

[0069] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of this application, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium as described above (such as ROM / RAM, magnetic disk, optical disc), and includes several instructions to enable a terminal device to execute the methods described in the various embodiments of this application.

[0070] The above are only the preferred embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, shall equally be included in the patent protection scope of the present application.

Claims

1. A method for controlling the feeding flow rate of a semi-closed spiral feeding device, which is used to control the semi-closed spiral feeding device, characterized in that, The method for controlling the feeding flow rate of the semi-closed spiral feeding device includes: Setting the target conveying volume of the horizontal aggregate mechanism and the target rotational speed of the rotating blades of the horizontal aggregate mechanism, and calculating the target filling rate of the horizontal aggregate mechanism based on the target conveying volume and the target rotational speed; Based on the fluidity of the target material, calculating the target rotation angle of the baffle to adjust the rotation angle of the baffle based on the target filling rate, or calculating the target sinking cutting amount of the horizontal aggregate mechanism to adjust the sinking cutting amount of the horizontal aggregate mechanism based on the target filling rate, completing the initial state adjustment of the semi-closed spiral feeding device, and calculating the theoretical current value of the driving motor of the horizontal aggregate mechanism in the initial state; After the semi-closed spiral feeding device is actually applied in the initial state, obtaining the actual current value of the driving motor of the horizontal aggregate mechanism and comparing it with the theoretical current value to dynamically adjust the rotational speed of the rotating blades of the horizontal aggregate mechanism.

2. The method for controlling the feeding flow rate of a semi-closed spiral feeding device according to claim 1, wherein The specific calculation method for calculating the target filling rate of the horizontal aggregate mechanism based on the target conveying volume and the target rotational speed is as follows: Among them, represents the target conveying volume of the horizontal aggregate mechanism, represents the inclination correction coefficient of the semi-closed spiral reclaiming equipment, represents the pitch coefficient of the horizontal aggregate mechanism, represents the bulk density of the target material, represents the target filling rate of the horizontal aggregate mechanism, represents the diameter of the rotating blades of the horizontal aggregate mechanism, represents the target rotational speed of the rotating blades of the horizontal aggregate mechanism.

3. The material taking flow control method of a semi-closed spiral material taking device according to claim 1, characterized in that, Based on the fluidity of the target material, calculating the target rotation angle of the baffle to adjust the rotation angle of the baffle based on the target filling rate, or calculating the target sinking cutting amount of the horizontal aggregate mechanism to adjust the sinking cutting amount of the horizontal aggregate mechanism based on the target filling rate, completing the initial state adjustment of the semi-closed spiral feeding device, and calculating the theoretical current value of the driving motor of the horizontal aggregate mechanism in the initial state, specifically including: Judging the fluidity of the target material based on the type of the target material: If the fluidity is better, calculating the target rotation angle of the baffle based on the target filling rate, adjusting the rotation angle of the baffle according to the calculated target rotation angle, completing the initial state adjustment of the semi-closed spiral feeding device, and calculating the theoretical current value of the driving motor of the horizontal aggregate mechanism in the initial state; If the fluidity is poor, calculating the target sinking cutting amount of the horizontal aggregate mechanism based on the target filling rate, adjusting the sinking cutting amount of the horizontal aggregate mechanism according to the calculated target sinking cutting amount, completing the initial state adjustment of the semi-closed spiral feeding device, and calculating the theoretical current value of the driving motor of the horizontal aggregate mechanism in the initial state.

4. The method for controlling the feeding flow rate of a semi-closed spiral feeding device according to claim 3, characterized in that, The specific calculation method for calculating the target rotation angle of the baffle based on the target filling rate includes: Calculating the material filling area of the horizontal aggregate mechanism when adjusting the rotation angle of the baffle, specifically: Among them, represents the material filling area of the horizontal aggregate mechanism when adjusting the rotation angle of the baffle,[ represents the diameter of the rotating blade of the horizontal aggregate mechanism,[ represents the target rotation angle of the baffle,[ represents the natural angle of repose of the target material; Calculating the target rotation angle of the baffle based on the calculated material filling area and the target filling rate, specifically: Among them, represents the target filling rate of the horizontal aggregate mechanism.

5. The material taking flow control method of a semi-closed spiral material taking device as described in claim 4, characterized in that, After the initial state adjustment of the semi-closed spiral feeding device is completed by adjusting the rotation angle of the baffle, the specific calculation method for the theoretical current value of the driving motor of the horizontal aggregate mechanism is as follows: Among them, represents the theoretical current value of the horizontal aggregate mechanism drive motor, represents the power reserve coefficient, represents the conveying length of the horizontal aggregate mechanism, represents the inclination correction coefficient of the semi-closed spiral reclaiming equipment, represents the pitch coefficient of the horizontal aggregate mechanism, represents the bulk density of the target material, represents the target rotational speed of the horizontal aggregate mechanism, represents the resistance coefficient of the target material, represents the voltage of the horizontal aggregate mechanism drive motor, represents the total efficiency of the horizontal aggregate mechanism drive motor, represents the power factor of the horizontal aggregate mechanism drive motor.

6. The method for controlling the feeding flow rate of a semi-closed spiral feeding device according to claim 3, wherein The specific calculation method for calculating the target sinking cutting amount of the horizontal aggregate mechanism based on the target filling rate includes: Calculating the material filling area of the horizontal aggregate mechanism when adjusting the sinking cutting amount of the horizontal aggregate mechanism, specifically: Among them, represents the material filling area of the horizontal aggregate mechanism when adjusting the downward cutting amount of the horizontal aggregate mechanism, represents the diameter of the rotating blade of the horizontal aggregate mechanism, represents the angle between the edge of the material baffle and the horizontal plane, that is, the rotation angle of the material baffle, represents the natural angle of repose of the target material, represents the target downward cutting amount of the horizontal aggregate mechanism; Calculating the target sinking cutting amount of the horizontal aggregate mechanism based on the calculated material filling area and the target filling rate, specifically: Among them, represents the target filling rate of the horizontal aggregate mechanism.

7. A method for controlling the feeding flow rate of a semi-closed spiral feeding device according to claim 6, characterized in that, After the initial state adjustment of the semi-closed spiral reclaimer is completed by adjusting the horizontal aggregate mechanism's downward cutting amount, the theoretical current value of the horizontal aggregate mechanism's drive motor is calculated as follows: Among them, represents the theoretical current value of the horizontal aggregate mechanism drive motor, represents the power reserve coefficient, represents the conveying length of the horizontal aggregate mechanism, represents the inclination correction coefficient of the semi-closed spiral reclaiming equipment, represents the pitch coefficient of the horizontal aggregate mechanism, represents the bulk density of the target material, represents the target rotational speed of the horizontal aggregate mechanism, represents the resistance coefficient of the target material, represents the voltage of the horizontal aggregate mechanism drive motor, represents the total efficiency of the horizontal aggregate mechanism drive motor, represents the power factor of the horizontal aggregate mechanism drive motor.

8. The method for controlling the feeding flow rate of a semi-closed spiral feeding device according to claim 1, characterized in that, After the semi-closed spiral reclaimer is actually applied in the initial state, the actual current value of the horizontal aggregate mechanism's drive motor is obtained and compared with the theoretical current value to dynamically adjust the rotation speed of the horizontal aggregate mechanism's rotating blades, specifically including: After the semi-closed spiral reclaimer is actually applied in the initial state, the actual current value of the horizontal aggregate mechanism's drive motor is periodically obtained, and the obtained actual current value is compared with the theoretical current value to determine whether the difference is within a preset range: If not, then compare the size between the actual current value and the theoretical current value: - When the actual current value is greater than the theoretical current value, reduce the rotation speed of the horizontal aggregate mechanism's rotating blades by a set step size, and obtain the actual current value of the horizontal aggregate mechanism's drive motor again. Compare the obtained actual current value with the theoretical current value again, and determine again whether the difference is within the preset range. Repeat this cycle until the difference between the obtained actual current value and the theoretical current value is within the preset range; - When the actual current value is less than the theoretical current value, increase the rotation speed of the horizontal aggregate mechanism's rotating blades by a set step size, and obtain the actual current value of the horizontal aggregate mechanism's drive motor again. Compare the obtained actual current value with the theoretical current value again, and determine again whether the difference is within the preset range. Repeat this cycle until the difference between the obtained actual current value and the theoretical current value is within the preset range; If so, no processing is required.

9. A method for controlling the feeding flow of a semi-closed spiral reclaimer according to claim 1, wherein: An absolute encoder is provided on the baffle; The absolute encoder is used to detect the rotation angle of the baffle to monitor whether the baffle is adjusted in place according to the target rotation angle.

10. A method for controlling the feeding flow of a semi-closed spiral reclaimer according to claim 1, wherein: An angle sensor is provided on the horizontal aggregate mechanism; The angle sensor is used to detect the downward cutting amount of the horizontal aggregate mechanism to monitor whether it is adjusted in place according to the target downward cutting amount.

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