Method, device and equipment for controlling the operating frequency of a rod feeder

Abstract

The application discloses a kind of operating frequency control method, device and equipment of bar feeder, the method includes: when bar feeder and jaw crusher are in operating state, the first detection bin of the feeding bin of bar feeder and the second detection bin of the crushing bin of jaw crusher are acquired, and jaw crusher is used to obtain material from bar feeder and crush;Determine the first operating frequency based on the first detection bin;Determine the second operating frequency based on the second detection bin;If no equipment protection signal set for bar feeder and jaw crusher is detected, determine the target operating frequency of bar feeder based on the first operating frequency and the second operating frequency.The technical problem of low work efficiency of bar feeder is solved by the present application.

Description

Technical Field

[0001] This invention belongs to the field of control technology for bar feeders, and particularly relates to a method, device and equipment for controlling the operating frequency of a bar feeder. Background Technology

[0002] The higher the operating frequency of the bar feeder, the more material the jaw crusher can extract from the feed hopper per unit time. However, the operating frequency cannot be increased simply to improve production efficiency. The operating frequency of the bar feeder needs to be adjusted according to production risks. In current technology, production risks are mainly assessed manually, and then the operating frequency is adjusted accordingly. However, due to the varying production experience of personnel, it is impossible to accurately assess production risks, and therefore, it is impossible to accurately adjust the operating frequency.

[0003] When the operating frequency is unreasonable, the bar feeder cannot feed efficiently, resulting in low working efficiency, which in turn increases production costs and reduces the company's competitiveness. Therefore, the low working efficiency of the bar feeder is a technical problem that urgently needs to be solved. Summary of the Invention

[0004] This invention provides a method, apparatus, and equipment for controlling the operating frequency of a bar feeder, which solves the technical problem of low working efficiency of the bar feeder.

[0005] In a first aspect, embodiments of the present invention provide a method for controlling the operating frequency of a bar feeder, comprising: when the bar feeder and a jaw crusher are in operation, acquiring a first detection position of the feed bin of the bar feeder and a second detection position of the crushing bin of the jaw crusher, wherein the jaw crusher is used to acquire material from the bar feeder and crush it; determining a first operating frequency based on the first detection position; determining a second operating frequency based on the second detection position; and if no equipment protection signal set for the bar feeder and the jaw crusher is detected, determining a target operating frequency of the bar feeder based on the first operating frequency and the second operating frequency.

[0006] In conjunction with the first aspect of the present invention, in some embodiments, determining the first operating frequency based on the first detection chamber includes: if the first detection chamber is greater than a first preset chamber, using a preset upper frequency limit as the first operating frequency; if the first detection chamber is less than a second preset chamber, using a preset lower frequency limit as the first operating frequency, wherein the first preset chamber is greater than the second preset chamber and the upper frequency limit is greater than the lower frequency limit; if the first detection chamber is not greater than the first preset chamber and the first detection chamber is not less than the second preset chamber, determining the first operating frequency based on the first detection chamber, the first preset chamber, and the second preset chamber.

[0007] In conjunction with the first aspect of the present invention, in some embodiments, determining the first operating frequency based on the first detection chamber, the first preset chamber, and the second preset chamber includes: using the difference between the upper limit of the frequency and the lower limit of the frequency as a first value; using the difference between the first preset chamber and the first detection chamber as a second value; using the difference between the first preset chamber and the second preset chamber as a third value; using the quotient of the second value and the third value as a fourth value; using the square of the fourth value as a fifth value; using the product of the first value and the fifth value as a sixth value; and using the difference between the upper limit of the frequency and the sixth value as the first operating frequency.

[0008] In conjunction with the first aspect of the present invention, in some embodiments, determining the second operating frequency based on the second detection chamber position includes: if the second detection chamber position is greater than a third preset chamber position, using the lower limit of the frequency as the second operating frequency; if the second detection chamber position is less than a fourth preset chamber position, using the upper limit of the frequency as the second operating frequency, wherein the third preset chamber position is greater than the fourth preset chamber position; if the second detection chamber position is not greater than the third preset chamber position and the second detection chamber position is not less than the fourth preset chamber position, determining the second operating frequency based on the second detection chamber position, the third preset chamber position, and the fourth preset chamber position.

[0009] In conjunction with the first aspect of the present invention, in some embodiments, determining the second operating frequency based on the second detection chamber, the third preset chamber, and the fourth preset chamber includes: determining N based on the second detection chamber, where N is a positive number greater than 1, wherein the lower the second detection chamber, the larger N is; taking the difference between the second detection chamber and the fourth preset chamber as a seventh value, and the difference between the third preset chamber and the fourth preset chamber as an eighth value; taking the quotient of the seventh value and the eighth value as a ninth value, and the Nth power of the ninth value as a tenth value; taking the product of the first value and the tenth value as an eleventh value; and taking the difference between the upper limit of the frequency and the eleventh value as the second operating frequency.

[0010] In conjunction with the first aspect of the present invention, in some embodiments, determining the target operating frequency of the bar feeder based on the first operating frequency and the second operating frequency includes: if the first detection bin is less than the second preset bin, the first operating frequency is used as the target operating frequency; if the first detection bin is not less than the second preset bin, the second operating frequency is used as the target operating frequency.

[0011] In conjunction with the first aspect of the present invention, in some embodiments, the method further includes: if the device protection signal is detected, using a preset protection frequency as the target operating frequency.

[0012] In conjunction with the first aspect of the present invention, in some embodiments, before setting the preset protection frequency as the target operating frequency, the method further includes: generating the equipment protection signal if the operating current of the bar feeder is higher than a first preset current, the operating current of the jaw crusher is higher than a second preset current, the operating current of the downstream belt of the bar feeder is higher than a third preset current, or the operating current of the downstream belt of the jaw crusher is higher than a fourth preset current; and generating the equipment protection signal if the first detection bin is greater than a preset bin threshold, the operating frequency of the bar feeder is greater than 35 Hz, and the operating current of the bar feeder is less than 50 A.

[0013] Secondly, embodiments of the present invention provide an operating frequency control device for a bar feeder, comprising: a bin position acquisition unit, configured to acquire, when the bar feeder and jaw crusher are in operation, a first detection bin position of the feeding bin of the bar feeder and a second detection bin position of the crushing bin of the jaw crusher, wherein the jaw crusher is used to acquire material from the bar feeder and crush it; a first determination unit, configured to determine a first operating frequency based on the first detection bin position; a second determination unit, configured to determine a second operating frequency based on the second detection bin position; and a target determination unit, configured to determine a target operating frequency of the bar feeder based on the first operating frequency and the second operating frequency if no equipment protection signal set for the bar feeder and the jaw crusher is detected.

[0014] Thirdly, embodiments of the present invention provide an electronic device, including: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the method described in any of the first aspects.

[0015] The one or more technical solutions provided in the embodiments of the present invention achieve at least the following technical effects or advantages:

[0016] This invention, in its embodiments, acquires the first detection bin position of the bar feeder's feed hopper and the second detection bin position of the jaw crusher's crushing bin while both the bar feeder and jaw crusher are in operation. The jaw crusher receives material from the bar feeder and crushes it. A first operating frequency is determined based on the first detection bin position; a second operating frequency is determined based on the second detection bin position; if no equipment protection signal is detected for the bar feeder and jaw crusher, a target operating frequency for the bar feeder is determined based on the first and second operating frequencies. If the first detection bin position is too low, material may directly impact the bar screen of the bar feeder; if the second detection bin position is too high, material may slug into the jaw crusher, potentially damaging it. Therefore, by combining the first and second detection bin positions, accurate assessment of production risks can be achieved, leading to precise adjustment of the operating frequency, resulting in efficient feeding by the bar feeder. This improves the working efficiency of the bar feeder. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1This is a flowchart of the operating frequency control method for the bar feeder in an embodiment of the present invention;

[0019] Figure 2 This is a functional block diagram of the operating frequency control device of the bar feeder in an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of an electronic device in an embodiment of the present invention. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0022] In this invention, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Furthermore, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0023] This invention provides a method for controlling the operating frequency of a bar feeder, referring to... Figure 1 As shown, the method includes the following steps S101 to S104:

[0024] S101: When the bar feeder and jaw crusher are in operation, the first detection position of the feed bin of the bar feeder and the second detection position of the crushing bin of the jaw crusher are obtained. The jaw crusher is used to obtain materials from the bar feeder and crush them.

[0025] S102: Determine the first operating frequency based on the first detection chamber.

[0026] In some implementations, step S102 may include: if the first detection position is greater than a first preset position, using a preset upper frequency limit as the first operating frequency; if the first detection position is less than a second preset position, using a preset lower frequency limit as the first operating frequency, where the first preset position is greater than the second preset position and the upper frequency limit is greater than the lower frequency limit; if the first detection position is neither greater than the first preset position nor less than the second preset position, determining the first operating frequency based on the first detection position, the first preset position, and the second preset position.

[0027] It should be noted that if the first detection bin is less than the first preset bin, the mine car is allowed to unload material to increase the material in the feed bin of the bar feeder. If the first detection bin is not less than the first preset bin, the mine car is prohibited from unloading material. The first preset bin ensures that the feed bin can accommodate at least the material of one mine car to prevent the feed bin from becoming full during the unloading process.

[0028] When the first detection bin is greater than the first preset bin, it indicates that there is too much material in the feed bin, so the mine car is prohibited from unloading material. At this time, the preset frequency upper limit is used as the first operating frequency, that is, the bar feeder should feed ore according to the maximum feeding amount, shorten the time interval between the next allowed mine car unloading of material, meet the requirements of efficient ore feeding, and thus improve the working efficiency of the bar feeder.

[0029] When the first detection bin is lower than the second preset bin, it indicates that the material in the feed bin is too low, thus allowing the mine car to overturn and unload material. However, this greatly increases the likelihood that the overturned material will directly hit the bar screen of the bar feeder. Therefore, setting the preset lower frequency limit as the first operating frequency prevents further reduction of material in the feed bin, thereby reducing the possibility of the overturned material directly hitting the bar screen of the bar feeder. This improves the operational safety of the bar feeder.

[0030] When the first detection bin is not greater than the first preset bin and the first detection bin is not less than the second preset bin, the mine car is allowed to unload materials. Therefore, although the possibility of the unloaded material from the mine car directly hitting the bar screen of the bar feeder is small, it will gradually increase. In order to prevent the feed bin from being empty during the interval between the unloading of two mine cars, the operating frequency of the bar feeder needs to be gradually reduced.

[0031] In some implementations, determining the first operating frequency based on the first detection chamber, the first preset chamber, and the second preset chamber may include: using the difference between the upper frequency limit and the lower frequency limit as a first value; using the difference between the first preset chamber and the first detection chamber as a second value; using the difference between the first preset chamber and the second preset chamber as a third value; using the quotient of the second value and the third value as a fourth value; using the square of the fourth value as a fifth value; using the product of the first value and the fifth value as a sixth value; and using the difference between the upper frequency limit and the sixth value as the first operating frequency.

[0032] It should be noted that the lower the first detection bin position, the greater the likelihood that the material unloaded from the mine car will directly hit the bar screen of the bar feeder. Therefore, as the detection bin position of the feed hopper decreases, the operating frequency needs to be gradually reduced. The relationship between the detection bin position and the operating frequency can be linear or non-linear. The above specifies that the square of the fourth value is used as the fifth value, meaning a non-linear relationship is adopted to determine the operating frequency. Therefore, when the difference between the first detection bin position and the first preset bin position is small, i.e., in the initial stage of reducing the operating frequency, a gradual reduction in the operating frequency can be achieved, thus improving the working efficiency of the bar feeder.

[0033] S103: Determine the second operating frequency based on the second detection chamber.

[0034] In some implementations, step S103 may include: if the second detection position is greater than the third preset position, using the lower frequency limit as the second operating frequency; if the second detection position is less than the fourth preset position, using the upper frequency limit as the second operating frequency, wherein the third preset position is greater than the fourth preset position; if the second detection position is not greater than the third preset position and not less than the fourth preset position, determining the second operating frequency based on the second detection position, the third preset position, and the fourth preset position.

[0035] It should be noted that a second detection bin exceeding the third preset bin indicates excessive material in the jaw crusher's crushing chamber, potentially causing material slugging and damage. Therefore, using the lower frequency limit as the second operating frequency reduces the material received by the jaw crusher from the bar feeder, thus preventing material slugging and improving the jaw crusher's operational safety.

[0036] It should be noted that a second detection bin lower than the fourth preset bin indicates insufficient material in the jaw crusher's crushing bin, resulting in a reduced material crushing volume per unit time and consequently lower operating efficiency. Therefore, using the upper frequency limit as the second operating frequency increases the material intake from the bar feeder, thereby increasing the material crushing volume per unit time and improving the jaw crusher's operating efficiency.

[0037] In some implementations, determining the second operating frequency based on the second detection chamber, the third preset chamber, and the fourth preset chamber may include: determining N based on the second detection chamber, where N is a positive number greater than 1, wherein the lower the second detection chamber, the larger N is; using the difference between the second detection chamber and the fourth preset chamber as the seventh value, and the difference between the third preset chamber and the fourth preset chamber as the eighth value; using the quotient of the seventh value and the eighth value as the ninth value, and the Nth power of the ninth value as the tenth value; using the product of the first value and the tenth value as the eleventh value; and using the difference between the upper limit of the frequency and the eleventh value as the second operating frequency.

[0038] Specifically, determining N based on the second detected position can be as follows: If the second detected position is within the first position range, N is set to 1.6, where the lower limit of the first position range is the fourth preset position; if the second detected position is within the second position range, N is set to 1.5, where the lower limit of the second position range is greater than the upper limit of the first position range; if the second detected position is within the third position range, N is set to 1.4, where the lower limit of the third position range is greater than the upper limit of the second position range; if the second detected position is within the fourth position range, N is set to 1.3, where the lower limit of the fourth position range is greater than the upper limit of the third position range; if the second detected position is within the fifth position range, N is set to 1.2, where the lower limit of the fifth position range is greater than the upper limit of the fourth position range, and the upper limit of the fifth position range is the third preset position.

[0039] It should be noted that, provided the second detection bin level is no higher than the third preset bin level and no lower than the fourth preset bin level, a lower second detection bin level results in less material in the crushing bin. Therefore, as the second detection bin level decreases, the operating frequency of the bar feeder should be increased to increase the material in the crushing bin. Conversely, as the second detection bin level increases, the operating frequency of the bar feeder should be decreased to prevent material overflow from the crushing bin. Thus, by determining N based on the second detection bin level, a slow descent at low material levels ensures efficient feeding, while a rapid descent at high material levels prevents overflow from a full crushing bin.

[0040] S104: If no equipment protection signal is detected for the bar feeder and jaw crusher, determine the target operating frequency of the bar feeder based on the first operating frequency and the second operating frequency.

[0041] In some implementations, determining the target operating frequency of the bar feeder based on the first operating frequency and the second operating frequency may include: if the first detection bin is less than the second preset bin, the first operating frequency is used as the target operating frequency; if the first detection bin is not less than the second preset bin, the second operating frequency is used as the target operating frequency.

[0042] In some implementations, determining the target operating frequency of the bar feeder based on the first operating frequency and the second operating frequency may include: obtaining a user-defined intention; and determining the target operating frequency from the first operating frequency and the second operating frequency based on the user-defined intention.

[0043] In some embodiments, the operating frequency control method for the bar feeder may further include: if a device protection signal is detected, using a preset protection frequency as the target operating frequency.

[0044] In some embodiments, before setting the preset protection frequency as the target operating frequency, the method may further include: generating an equipment protection signal if the operating current of the bar feeder is higher than a first preset current, the operating current of the jaw crusher is higher than a second preset current, the operating current of the downstream belt of the bar feeder is higher than a third preset current, or the operating current of the downstream belt of the jaw crusher is higher than a fourth preset current; and generating an equipment protection signal if the first detection bin is greater than a preset bin threshold, the operating frequency of the bar feeder is greater than 35 Hz, and the operating current of the bar feeder is less than 50 A.

[0045] It should be noted that if the operating current of the bar feeder exceeds the first preset current, it indicates that the working load of the bar feeder is too high; if the operating current of the jaw crusher exceeds the second preset current, it indicates that the working load of the jaw crusher is too high; if the operating current of the downstream belt of the bar feeder exceeds the third preset current, it indicates that the working load of the downstream belt of the bar feeder is too high; and if the operating current of the downstream belt of the jaw crusher exceeds the fourth preset current, it indicates that the working load of the downstream belt of the jaw crusher is too high. Additionally, if the first detection bin level is greater than the preset bin level threshold, the operating frequency of the bar feeder is greater than 35 Hz, and the operating current of the bar feeder is less than 50 A, it indicates that the feed inlet of the bar feeder is blocked. Therefore, by setting equipment protection signals, the safety of equipment operation is improved.

[0046] It should be noted that the bar feeder in the iron ore building materials production line of the mining company's water plant is the primary component of the entire system, and the feed rate is a crucial indicator of production line efficiency. Currently, the frequency adjustment of the bar feeder is mainly based on remote, manual, segmented control. Research on the optimal control methods for the upstream and downstream equipment of the entire feeding system is still lacking. With the continuous increase in sand and gravel enterprises, technological innovation and intelligent control have become the main ways to improve production efficiency and are also important supports for enhancing the profitability of sand and gravel production lines.

[0047] It should be noted that before the system runs, relevant control parameters are set via the host computer. The upper frequency limit is the maximum frequency that the bar feeder is allowed to adjust during the adjustment process, and the lower frequency limit is the minimum frequency that the bar feeder is allowed to adjust during the adjustment process. The system calculates the first and second operating frequencies of the bar feeder according to the two control modes respectively, and displays the two operating frequencies.

[0048] This invention, in its embodiments, acquires the first detection bin position of the bar feeder's feed hopper and the second detection bin position of the jaw crusher's crushing bin while both the bar feeder and jaw crusher are in operation. The jaw crusher receives material from the bar feeder and crushes it. A first operating frequency is determined based on the first detection bin position; a second operating frequency is determined based on the second detection bin position; if no equipment protection signal is detected for the bar feeder and jaw crusher, a target operating frequency for the bar feeder is determined based on the first and second operating frequencies. If the first detection bin position is too low, material may directly impact the bar screen of the bar feeder; if the second detection bin position is too high, material may slug into the jaw crusher, potentially damaging it. Therefore, by combining the first and second detection bin positions, accurate assessment of production risks can be achieved, leading to precise adjustment of the operating frequency, resulting in efficient feeding by the bar feeder. This improves the working efficiency of the bar feeder.

[0049] Based on the same inventive concept, and referring to Figure 2 As shown, this embodiment of the invention provides an operating frequency control device 10 for a bar feeder, comprising: a bin position acquisition unit 110, used to acquire the first detection bin position of the feed bin of the bar feeder and the second detection bin position of the crushing bin of the jaw crusher when the bar feeder and the jaw crusher are in operation, the jaw crusher being used to acquire material from the bar feeder and crush it; a first determination unit 120, used to determine a first operating frequency based on the first detection bin position; a second determination unit 130, used to determine a second operating frequency based on the second detection bin position; and a target determination unit 140, used to determine a target operating frequency of the bar feeder based on the first operating frequency and the second operating frequency if no equipment protection signal set for the bar feeder and the jaw crusher is detected.

[0050] Understandably, the first determining unit 120 includes: a first setting subunit, used to set a preset upper frequency limit as the first operating frequency if the first detection compartment is greater than the first preset compartment; a second setting subunit, used to set a preset lower frequency limit as the first operating frequency if the first detection compartment is less than the second preset compartment, wherein the first preset compartment is greater than the second preset compartment and the upper frequency limit is greater than the lower frequency limit; and a third setting subunit, used to determine the first operating frequency based on the first detection compartment, the first preset compartment, and the second preset compartment if the first detection compartment is not greater than the first preset compartment and the first detection compartment is not less than the second preset compartment.

[0051] Understandably, the third setting subunit is specifically used to: take the difference between the upper frequency limit and the lower frequency limit as the first value; take the difference between the first preset position and the first detection position as the second value; take the difference between the first preset position and the second preset position as the third value; take the quotient of the second value and the third value as the fourth value; take the square of the fourth value as the fifth value; take the product of the first value and the fifth value as the sixth value; and take the difference between the upper frequency limit and the sixth value as the first operating frequency.

[0052] Understandably, the second determining unit 130 includes: a fourth setting subunit, used to set the lower frequency limit as the second operating frequency if the second detection position is greater than the third preset position; a fifth setting subunit, used to set the upper frequency limit as the second operating frequency if the second detection position is less than the fourth preset position, wherein the third preset position is greater than the fourth preset position; and a sixth setting subunit, used to determine the second operating frequency based on the second detection position, the third preset position, and the fourth preset position if the second detection position is not greater than the third preset position and the second detection position is not less than the fourth preset position.

[0053] Understandably, the sixth setting subunit is specifically used for: determining N based on the second detection position, where N is a positive number greater than 1, and the lower the second detection position, the larger N is; taking the difference between the second detection position and the fourth preset position as the seventh value, and the difference between the third preset position and the fourth preset position as the eighth value; taking the quotient of the seventh value and the eighth value as the ninth value, and the Nth power of the ninth value as the tenth value; taking the product of the first value and the tenth value as the eleventh value; and taking the difference between the upper limit of frequency and the eleventh value as the second operating frequency.

[0054] It is understandable that the target determination unit 140 is specifically used for: if the first detection position is less than the second preset position, the first operating frequency is used as the target operating frequency; if the first detection position is not less than the second preset position, the second operating frequency is used as the target operating frequency.

[0055] Understandably, the operating frequency control device 10 of the bar feeder also includes a protection unit, which is used to set the preset protection frequency as the target operating frequency if a device protection signal is detected.

[0056] Understandably, the operating frequency control device 10 of the bar feeder also includes: a signal generation unit, used to generate an equipment protection signal if, before setting the preset protection frequency as the target operating frequency, the operating current of the bar feeder is higher than the first preset current, the operating current of the jaw crusher is higher than the second preset current, the operating current of the downstream belt of the bar feeder is higher than the third preset current, or the operating current of the downstream belt of the jaw crusher is higher than the fourth preset current; and if the first detection bin is greater than the preset bin threshold, the operating frequency of the bar feeder is greater than 35 Hz, and the operating current of the bar feeder is less than 50 A.

[0057] It should be understood that further implementation details of the operating frequency control device 10 of the bar feeder in the embodiments of the present invention are as described in the aforementioned operating frequency control method of the bar feeder, and will not be repeated here for the sake of brevity.

[0058] Based on the same inventive concept, embodiments of the present invention also provide an electronic device, such as... Figure 3 As shown, it includes a memory 304, a processor 302, and a computer program stored in the memory 304 and executable on the processor 302. The processor 302 executes the program to implement the steps described in any embodiment of the method for controlling the operating frequency of the bar feeder.

[0059] Among them, Figure 3 In this document, a bus architecture (represented by bus 300) is used. Bus 300 may include any number of interconnected buses and bridges, linking various circuits including one or more processors represented by processor 302 and memory represented by memory 304. Bus 300 may also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. Bus interface 305 provides an interface between bus 300 and receiver 301 and transmitter 303. Receiver 301 and transmitter 303 may be the same element, i.e., a transceiver, providing a unit for communicating with various other devices over a transmission medium. Processor 302 is responsible for managing bus 300 and general processing, while memory 304 can be used to store data used by processor 302 during operation.

[0060] The functions described herein can be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions can be stored as one or more instructions or codes on or transmitted via a computer-readable medium. Other examples and embodiments are within the scope and spirit of this invention and the appended claims. For example, due to the nature of software, the functions described above can be implemented using software executed by a processor, hardware, firmware, hardwired, or any combination thereof. Furthermore, the functional units can be integrated into a single processing unit, or each unit can exist physically separately, or two or more units can be integrated into a single unit.

[0061] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For instance, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual coupling, direct coupling, or communication connection may be through some interfaces; the indirect coupling or communication connection between units or modules may be electrical or other forms.

[0062] The units described as separate components may or may not be physically separate. Similarly, the components of the control device may or may not be physical units; they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment, depending on actual needs.

[0063] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0064] The above description is merely an embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A method for controlling the operating frequency of a bar feeder, characterized in that, include: When the bar feeder and jaw crusher are in operation, the first detection position of the feed bin of the bar feeder and the second detection position of the crushing bin of the jaw crusher are obtained. The jaw crusher is used to obtain materials from the bar feeder and crush them. A first operating frequency is determined based on the first detection chamber position; wherein, if the first detection chamber position is greater than a first preset chamber position, a preset upper frequency limit is used as the first operating frequency; if the first detection chamber position is less than a second preset chamber position, a preset lower frequency limit is used as the first operating frequency, wherein the first preset chamber position is greater than the second preset chamber position, and the upper frequency limit is greater than the lower frequency limit; if the first detection chamber position is neither greater than the first preset chamber position nor less than the second preset chamber position, the first operating frequency is determined based on the first detection chamber position, the first preset chamber position, and the second preset chamber position; wherein, the difference between the upper frequency limit and the lower frequency limit is used as a first value, the difference between the first preset chamber position and the first detection chamber position is used as a second value, the difference between the first preset chamber position and the second preset chamber position is used as a third value; the quotient of the second value and the third value is used as a fourth value; the square of the fourth value is used as a fifth value; the product of the first value and the fifth value is used as a sixth value; and the difference between the upper frequency limit and the sixth value is used as the first operating frequency. The second operating frequency is determined based on the second detection chamber; If no equipment protection signal is detected for the bar feeder and the jaw crusher, the target operating frequency of the bar feeder is determined based on the first operating frequency and the second operating frequency.

2. The method for controlling the operating frequency of a bar feeder according to claim 1, characterized in that, The determination of the second operating frequency based on the second detection chamber includes: If the second detection chamber is greater than the third preset chamber, the lower limit of the frequency will be used as the second operating frequency; If the second detection position is less than the fourth preset position, the upper limit of the frequency is used as the second operating frequency, and the third preset position is greater than the fourth preset position; If the second detection unit is not greater than the third preset unit and the second detection unit is not less than the fourth preset unit, the second operating frequency is determined based on the second detection unit, the third preset unit, and the fourth preset unit.

3. The method for controlling the operating frequency of a bar feeder according to claim 2, characterized in that, The step of determining the second operating frequency based on the second detection chamber, the third preset chamber, and the fourth preset chamber includes: N is determined based on the second detection chamber position, where N is a positive number greater than 1, and the lower the second detection chamber position, the larger N is. The difference between the second detection chamber and the fourth preset chamber is taken as the seventh value, and the difference between the third preset chamber and the fourth preset chamber is taken as the eighth value. The quotient of the seventh value and the eighth value is taken as the ninth value, and the Nth power of the ninth value is taken as the tenth value. The product of the first value and the tenth value is taken as the eleventh value; The difference between the upper frequency limit and the eleventh value is taken as the second operating frequency.

4. The method for controlling the operating frequency of a bar feeder according to claim 1, characterized in that, Determining the target operating frequency of the bar feeder based on the first operating frequency and the second operating frequency includes: If the first detection chamber is smaller than the second preset chamber, the first operating frequency will be used as the target operating frequency. If the first detection chamber is not less than the second preset chamber, the second operating frequency is used as the target operating frequency.

5. The method for controlling the operating frequency of a bar feeder according to any one of claims 1-4, characterized in that, Also includes: If the device protection signal is detected, the preset protection frequency will be used as the target operating frequency.

6. The method for controlling the operating frequency of a bar feeder according to claim 5, characterized in that, Before setting the preset protection frequency as the target operating frequency, the method further includes: If the operating current of the bar feeder is higher than the first preset current, the operating current of the jaw crusher is higher than the second preset current, the operating current of the downstream belt of the bar feeder is higher than the third preset current, or the operating current of the downstream belt of the jaw crusher is higher than the fourth preset current, the equipment protection signal is generated. If the first detection chamber is greater than the preset chamber threshold, the operating frequency of the bar feeder is greater than 35 Hz, and the operating current of the bar feeder is less than 50 A, the equipment protection signal is generated.

7. A frequency control device for a bar feeder, characterized in that, include: The bin position acquisition unit is used to acquire the first detection bin position of the feed bin of the bar feeder and the second detection bin position of the crushing bin of the jaw crusher when the bar feeder and the jaw crusher are in operation. The jaw crusher is used to acquire materials from the bar feeder and crush them. A first determining unit is configured to determine a first operating frequency based on the first detection chamber position; wherein, if the first detection chamber position is greater than a first preset chamber position, a preset upper frequency limit is used as the first operating frequency; if the first detection chamber position is less than a second preset chamber position, a preset lower frequency limit is used as the first operating frequency, wherein the first preset chamber position is greater than the second preset chamber position, and the upper frequency limit is greater than the lower frequency limit; if the first detection chamber position is neither greater than the first preset chamber position nor less than the second preset chamber position, the first operating frequency is determined based on the first detection chamber position, the first preset chamber position, and the second preset chamber position; wherein, the difference between the upper frequency limit and the lower frequency limit is used as a first value, the difference between the first preset chamber position and the first detection chamber position is used as a second value, the difference between the first preset chamber position and the second preset chamber position is used as a third value; the quotient of the second value and the third value is used as a fourth value; the square of the fourth value is used as a fifth value; the product of the first value and the fifth value is used as a sixth value; and the difference between the upper frequency limit and the sixth value is used as the first operating frequency. The second determining unit is used to determine the second operating frequency based on the second detection chamber. The target determination unit is used to determine the target operating frequency of the bar feeder based on the first operating frequency and the second operating frequency if no equipment protection signal set for the bar feeder and the jaw crusher is detected.

8. An electronic device, characterized in that, include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor, when executing the computer program, implements the method of any one of claims 1-6.

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