Method for acquiring control power of crusher pump set

Abstract

The invention discloses a control power obtaining method of a crusher pump set, and belongs to the technical field of hydraulic control. In order to solve the problem that in the prior art, due to posture adjustment of a crusher, the working efficiency of a breaking hammer is reduced, the pump sets are divided into the second branch pump set for driving the breaking hammer and the first branch pump set for driving other parts, and power is dynamically distributed so as to preferentially guarantee operation of the breaking hammer. The method specifically comprises the steps of obtaining required power of a crusher working part and current working power of a pump set power source, and calculating a power deduction value; and setting a power deduction upper limit based on the minimum working power of the first branch pump set, deducting the required power from the first branch pump set preferentially, and further adjusting the power of the low-priority oil pump in the second branch pump set if the deduction value exceeds the upper limit. According to the method, through layered power regulation and control, the working efficiency of the breaking hammer is preferentially maintained during posture adjustment, the overload risk of a power source is reduced, and meanwhile the influence on other parts is reduced.

Description

Technical Field

[0001] The invention relates to a method for obtaining control power of a crusher pump group, and belongs to the technical field of hydraulic control. Background Art

[0002] The breaker hammer is driven by a hydraulic pump group. As the breaker hammer develops into a larger one, the required crushing flow rate is large.

[0003] However, the hydraulic pump unit isn't the only component in a crusher that requires power. Adjusting the crusher's posture also requires it. Adjusting the crusher's posture, especially when multiple components are aligned, reduces the hydraulic oil flow that drives the hammer. Consequently, the hammer receives insufficient power from the hydraulic pump unit, which in turn reduces the crushing frequency, impacting both crushing efficiency and operator experience.

[0004] Therefore, the existing method for obtaining control power of the crusher pump group has the problem of weakening the working efficiency of the crushing hammer when the crusher performs posture adjustment. Summary of the Invention

[0005] The purpose of this application is to overcome the deficiencies in the prior art and to provide a method for obtaining control power for a crusher pump group that prioritizes the working efficiency of a crushing hammer when the crusher is adjusting its posture.

[0006] To achieve the above objectives, this application is implemented using the following technical solutions: In a first aspect, the present application provides a method for obtaining control power of a crusher pump group, comprising: Obtaining the power demanded by the crusher's working components for the pump group and the current working power of the pump group's power source; the pump group is divided into a first sub-pump group and a second sub-pump group for driving the crushing hammer; Obtaining a power deduction value according to the required power and the working power of the current pump group power source; Obtaining the minimum operating power of the first pump group; The required power of the first sub-pump group is deducted according to the minimum working power of the first sub-pump group and the power deduction value to obtain the control power of the first sub-pump group and the control power of the second sub-pump group.

[0007] In some embodiments of the first aspect of the present application, obtaining the power demanded by the crusher working component for the pump group includes: obtaining the pressure of the first sub-pump group and the pressure of the second sub-pump group; Obtaining the required flow rate of the first sub-pump group and the required flow rate of the second sub-pump group when adjusting the compound crushing posture; The power requirements of the first pump group and the second pump group are obtained according to the required flow and the pressure, and the power requirements of the first pump group and the second pump group are integrated to obtain the power requirements of the crusher working components for the pump group.

[0008] In some embodiments of the first aspect of the present application, the power deduction value is obtained based on the required power and the working power of the current pump group power source, including taking the difference between the required power and the working power of the current pump group power source as the power deduction value.

[0009] In some embodiments of the first aspect of the present application, obtaining the control power of the first sub-pump group and the control power of the second sub-pump group according to the minimum operating power of the first sub-pump group and the power deduction value includes: Obtaining a power deduction upper limit of the first sub-pump group according to the minimum working power of the first sub-pump group; In response to the power deduction value being less than or equal to the power deduction upper limit, deducting the power deduction value from the required power of the first sub-pump group to obtain the control power of the first sub-pump group, and using the required power of the second sub-pump group as the control power of the second sub-pump group; In response to the power deduction being greater than or equal to the power deduction upper limit, the power deduction upper limit is deducted from the required power of the first sub-pump group to obtain the control power of the first sub-pump group, and the part of the power deduction value that exceeds the power deduction upper limit is deducted from the required power of the second sub-pump group to obtain the control power of the second sub-pump group.

[0010] In some embodiments of the first aspect of the present application, obtaining the power deduction upper limit of the first sub-pump group according to the minimum operating power of the first sub-pump group includes: Obtaining the minimum operating flow rate of the first sub-pump group; The power deduction upper limit of the first sub-pump group is obtained according to the difference between the minimum working flow of the first sub-pump group and the required flow of the first sub-pump group.

[0011] In some embodiments of the first aspect of the present application, the portion of the power deduction value that exceeds the power deduction upper limit is deducted from the required power of the second sub-pump group, including: setting a priority for each oil pump in the second pump group according to a power correlation between each oil pump and the breaker hammer; The required power of the corresponding oil pump is deducted according to the priority.

[0012] In some embodiments of the first aspect of the present application, the crusher working components include a breaker hammer, a crushing posture adjustment cylinder, and a boom cylinder.

[0013] In a second aspect, the present application further provides a computer device comprising a processor and a memory connected to the processor, wherein a computer program is stored in the memory. When the computer program is executed by the processor, the steps of the method for obtaining control power of a crusher pump group as described in any embodiment of the first aspect are executed.

[0014] In a third aspect, the present application further provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the method for obtaining control power of a crusher pump group as described in any embodiment of the first aspect.

[0015] In a fourth aspect, the present application further provides a computer program product, comprising a computer program / instruction, characterized in that when the computer program / instruction is executed by a processor, the steps of the method for obtaining control power of a crusher pump group described in any embodiment of the first aspect are implemented.

[0016] Compared with the prior art, the present invention has the following beneficial effects: This application provides a method for obtaining control power for a crusher pump group. This method ensures the hydraulic oil flow and operating efficiency of the second sub-pump group at the expense of the required power of the first sub-pump group, thereby ensuring the operating frequency of the breaker hammer 1 under conditions where the crusher is undergoing complex posture adjustments. However, the control frequency of the first sub-pump group is lower than its required power, resulting in slower posture adjustment speed and a minimal impact on operating efficiency and driving experience. This application dynamically allocates power by dividing the pump group into a second sub-pump group that drives the breaker hammer and a first sub-pump group that drives other components, prioritizing the operation of the breaker hammer. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present application or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0018] Figure 1 This is a flowchart of the steps of the method for obtaining control power of a crusher pump group provided in this embodiment; Figure 2 It is a schematic diagram of the structure of the components used for attitude adjustment of the crusher; Figure 3 is a schematic block diagram of the principles of the computer device provided in this embodiment; In the figure: 1. Breaker hammer; 2. Crushing posture adjustment cylinder; 3. Arm cylinder; 4. Arm; 5. Boom. DETAILED DESCRIPTION

[0019] The technical solution of the present invention is described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiments of the present application and the specific features in the embodiments are detailed descriptions of the technical solution of the present application, rather than limitations on the technical solution of the present application. Unless there is a conflict, the embodiments of the present application and the technical features in the embodiments can be combined with each other.

[0020] The term "and / or" in this document simply describes a relationship between related objects, indicating that three possible relationships exist. For example, "A and / or B" can mean: A exists alone, A and B exist simultaneously, or B exists alone. Additionally, the character " / " in this document generally indicates an "or" relationship between the related objects. Example 1

[0021] Figure 1 This is a flow chart of a method for obtaining control power of a crusher pump group in the first embodiment of the present invention. This flow chart only shows the logical sequence of the method described in this embodiment. In other possible embodiments of the present invention, different methods may be used without conflict. Figure 1 The steps shown or described are accomplished in the order shown.

[0022] The method for obtaining the control power of the crusher pump group provided in this embodiment can be applied to the terminal and can be executed by the crusher vehicle controller. Figure 1 , the method of this implementation specifically includes the following steps: Obtain the power demanded by the crusher's working components for the pump group and the operating power of the current pump group power source; based on the comparison between the demanded power and the operating power, we can determine whether the breaker hammer 1 is affected.

[0023] The pump group is divided into a first sub-pump group and a second sub-pump group for driving the breaker hammer 1; that is, the pump group is divided into the second sub-pump group for ensuring the working efficiency of the breaker hammer 1, and the first sub-pump group with a weak correlation or no correlation with the breaker hammer 1, and the first sub-pump group is used to drive the working parts other than the breaker hammer 1.

[0024] A power deduction value is obtained based on the required power and the current operating power of the pump group power source. This power deduction value represents the current operating power deficit of the pump group power source. In the prior art, a power deficit of the pump group power source affects all working components, including the breaker hammer 1, causing a decrease in the operating frequency of the breaker hammer 1. A power deficit of the pump group power source is more likely to occur when the crusher is performing a crushing operation while adjusting its posture.

[0025] Obtain the minimum operating power of the first sub-pump group; in this embodiment, the control power of the first sub-pump group will be reduced to ensure the normal operation of the second sub-pump group used to drive the breaker 1, so the minimum operating power of the first sub-pump group is the safety lower limit of the first sub-pump group.

[0026] The required power of the first sub-pump group is deducted from the minimum operating power of the first sub-pump group and the power deduction value to obtain the control power of the first and second sub-pump groups. This sacrifices the required power of the first sub-pump group to ensure the hydraulic oil flow and operating efficiency of the second sub-pump group, thus maintaining the operating frequency of the breaker hammer 1 under conditions where the crusher performs complex posture adjustments. However, the control frequency of the first sub-pump group is lower than its required power, resulting in slower posture adjustments and a minimal impact on operating efficiency and driving experience.

[0027] As one embodiment, the first pump group has only one oil pump, and the second pump group also has only one oil pump. Example 2

[0028] This embodiment provides a method for obtaining control power of a crusher pump group. This embodiment is optimized based on the first embodiment to improve the technical effect and refine the technical solution. For details not fully described in this embodiment, please refer to the first embodiment.

[0029] As one example, refer to Figure 2 The working parts of the crusher include a breaker hammer 1, a crushing posture adjustment cylinder 2 and an arm cylinder 3, wherein the breaker hammer 1 is installed on the arm 4, the arm 4 is hinged to the boom 5, the arm cylinder 3 is connected to the boom 5 and hinged to the arm 4, the arm cylinder 3 is used to adjust the posture of the arm 4, the crushing posture adjustment cylinder 2 is connected to the arm 4 and hinged to the breaker hammer 1, the crushing posture adjustment cylinder 2 is used to adjust the posture of the breaker hammer 1, when the crushing posture adjustment cylinder 2 and the arm cylinder 3 are in operation, the working flow of the breaker hammer 1 will be reduced, thereby reducing the working efficiency.

[0030] As one embodiment, obtaining the power demanded by the crusher working components for the pump group includes: obtaining the pressure of the first sub-pump group and the pressure of the second sub-pump group; Obtaining the required flow rate of the first sub-pump group and the required flow rate of the second sub-pump group when adjusting the compound crushing posture; The power requirements of the first and second sub-pump groups are calculated based on the required flow rate and pressure. The power requirements can be calculated using the physical relationship between the required flow rate and pressure. The power requirements of the first and second sub-pump groups are then integrated to determine the power requirements of the crusher's working components. For example, P1 = (Press1 × Q1) / 60, P2 = (Press2 × Q2) / 60, where P1 is the power requirement of the first sub-pump group, P2 is the power requirement of the second sub-pump group, Press1 is the pressure of the first sub-pump group, Press2 is the pressure of the second sub-pump group, Q1 is the flow requirement of the first sub-pump group, and Q2 is the flow requirement of the second sub-pump group.

[0031] In one embodiment, the power deduction value is obtained based on the required power and the current operating power of the pump group power source, including using the difference between the required power and the current operating power of the pump group power source as the power deduction value. That is, Pcut = (P1+P2)-P0, where Pcut is the power deduction value and P0 is the operating power of the previous pump group power source. This difference represents the gap between the current power demand of each component for the pump group power source and the actual operating efficiency that the pump group power source can achieve.

[0032] In one embodiment, obtaining the control power of the first sub-pump group and the control power of the second sub-pump group according to the minimum operating power of the first sub-pump group and the power deduction value includes: Obtain the power deduction upper limit of the first sub-pump group according to the minimum operating power of the first sub-pump group; that is, P1cutable = [Press1×(Q1- Q1min)] / 60, where Q1min is the minimum operating flow rate of the first sub-pump group; In response to the power deduction value being less than or equal to the power deduction upper limit, the power deduction value is deducted from the required power of the first sub-pump group to obtain the control power of the first sub-pump group, and the required power of the second sub-pump group is used as the control power of the second sub-pump group. This means that the first sub-pump group is not operated at the required power, and the operating efficiency of other components besides the breaker hammer 1 is reduced by using a lower control power. The control power of the second sub-pump group is operated at the actual required power to ensure the operation of the breaker hammer 1. That is, Q1out = [(P1 - Pcut) × 60] / Press1, where Q1out is the flow rate corresponding to the control power of the first sub-pump group.

[0033] In response to the power deduction being greater than or equal to the power deduction upper limit, the power deduction upper limit is deducted from the required power of the first sub-pump group to obtain the control power of the first sub-pump group. The portion of the power deduction value that exceeds the power deduction upper limit is deducted from the required power of the second sub-pump group to obtain the control power of the second sub-pump group. Specifically, the control power of the first sub-pump group is reduced to a minimum while not falling below the minimum operating flow rate of the first sub-pump group. The remaining portion of the power deduction value, given the power compromise made by the first sub-pump group, is deducted from the required power of the second sub-pump group. This means that the power guarantee priority of the breaker 1 is higher than that of other components undergoing posture adjustment. Furthermore, the control efficiency of the first and second sub-pump groups is consistent with the current operating power of the pump group power source, reducing the risk of power source overload. Specifically, Q1out = Q1min, and Q2out = {[P2 - (Pcut - P1cutable)] × 60} / Press2, where Q2out is the flow rate corresponding to the control power of the second sub-pump group and P1cutable is the power deduction upper limit of the first sub-pump group.

[0034] In one embodiment, the second sub-pump group includes multiple oil pumps supplying the breaker hammer 1. The portion of the power deduction value that exceeds the power deduction upper limit is deducted from the power demand of the second sub-pump group. This includes setting a priority for each oil pump in the second sub-pump group based on its power correlation with the breaker hammer 1; and deducting the power demand of the corresponding oil pump based on the priority. In other words, the power demand of the oil pump with weak power correlation is deducted first, while the power demand of the oil pump with strong power correlation is protected.

[0035] Compared with the first embodiment, the method for obtaining the control power of the crusher pump group provided in this embodiment clarifies the specific method for obtaining the required power and the power deduction value, making the control power more accurate; by adjusting the control power in detail, the working power of the breaker is prioritized, reducing the risk of power source overload. Example 3

[0036] This embodiment provides a computer device, including a processor and a memory connected to the processor, wherein a computer program is stored in the memory. When the computer program is executed by the processor, the steps of the method for obtaining control power of a crusher pump group provided in embodiment one or two are performed.

[0037] The computer device may be a server or an electronic terminal. As one embodiment, Figure 3, the computer device includes a processor, a memory, an input / output interface (Input / Output, abbreviated as I / O) and a communication interface. The processor, memory and input / output interface are connected through a system bus, and the communication interface is connected to the system bus through the input / output interface. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and computer program in the non-volatile storage medium. The database of the computer device is used to store data obtained and generated in the control power acquisition method of the crusher pump group. The input / output interface of the computer device is used to exchange information between the processor and an external device. The communication interface of the computer device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, it implements the control power acquisition method of the crusher pump group provided in embodiment one or two.

[0038] Those skilled in the art will understand that Figure 3 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than shown in the figure, or combine certain components, or have a different component arrangement.

[0039] The computer device provided in this embodiment has the same technical effects as those in Embodiment 1 or 2, and will not be described in detail here. Example 4

[0040] This embodiment provides a computer-readable storage medium having a computer program stored thereon. When the program is executed by a processor, the steps of the method for obtaining control power of a crusher pump group provided in the first or second embodiment are implemented.

[0041] The computer-readable storage medium provided in this embodiment has the same technical effects as those in Embodiment 1 or 2, and will not be described in detail here. Example 5

[0042] This embodiment provides a computer program product having a computer program stored thereon. When the computer program is executed by a processor, the computer program product implements the steps of the method for obtaining control power of a crusher pump group provided in Embodiment 1 or Embodiment 2. The computer program product provided in this embodiment can be transmitted, distributed, and downloaded in the form of a signal via the Internet.

[0043] The computer program product provided in this embodiment has the same technical effects as those in Embodiment 1 or 2, and will not be described in detail here.

[0044] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware. Furthermore, the present application may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0045] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0046] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0047] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0048] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0049] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0050] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A method for obtaining control power of a crusher pump group, characterized in that: include, Obtaining the power demanded by the crusher's working components for the pump group and the working power of the current pump group power source; the pump group is divided into a first sub-pump group and a second sub-pump group for driving the crushing hammer (1); Obtaining a power deduction value according to the required power and the working power of the current pump group power source; Obtaining the minimum operating power of the first pump group; The required power of the first sub-pump group is deducted according to the minimum working power of the first sub-pump group and the power deduction value to obtain the control power of the first sub-pump group and the control power of the second sub-pump group.

2. The method for obtaining control power of a crusher pump group according to claim 1, characterized in that: The power demanded by the crusher working parts for the pump group is obtained. include, obtaining the pressure of the first sub-pump group and the pressure of the second sub-pump group; Obtaining the required flow rate of the first sub-pump group and the required flow rate of the second sub-pump group when adjusting the compound crushing posture; The power requirements of the first pump group and the second pump group are obtained according to the required flow and the pressure, and the power requirements of the first pump group and the second pump group are integrated to obtain the power requirements of the crusher working components for the pump group.

3. The method for obtaining control power of a crusher pump group according to claim 1, characterized in that: The obtaining of the power deduction value according to the required power and the current working power of the power source of the pump group includes taking the difference between the required power and the current working power of the power source of the pump group as the power deduction value.

4. The method for obtaining control power of a crusher pump group according to claim 1, characterized in that: The obtaining of the control power of the first sub-pump group and the control power of the second sub-pump group according to the minimum operating power of the first sub-pump group and the power deduction value includes: Obtaining a power deduction upper limit of the first sub-pump group according to the minimum working power of the first sub-pump group; In response to the power deduction value being less than or equal to the power deduction upper limit, deducting the power deduction value from the required power of the first sub-pump group to obtain the control power of the first sub-pump group, and using the required power of the second sub-pump group as the control power of the second sub-pump group; In response to the power deduction being greater than or equal to the power deduction upper limit, the power deduction upper limit is deducted from the required power of the first sub-pump group to obtain the control power of the first sub-pump group, and the part of the power deduction value that exceeds the power deduction upper limit is deducted from the required power of the second sub-pump group to obtain the control power of the second sub-pump group.

5. The method for obtaining control power of a crusher pump group according to claim 4, characterized in that: The step of obtaining the power deduction upper limit of the first sub-pump group according to the minimum working power of the first sub-pump group includes: Obtaining the minimum operating flow rate of the first sub-pump group; The power deduction upper limit of the first sub-pump group is obtained according to the difference between the minimum working flow of the first sub-pump group and the required flow of the first sub-pump group.

6. The method for obtaining control power of a crusher pump group according to claim 4, characterized in that: The portion of the power deduction value exceeding the power deduction upper limit is deducted from the required power of the second pump group, including: Setting a priority for each oil pump in the second sub-pump group according to the power correlation between each oil pump and the breaker hammer (1); The required power of the corresponding oil pump is deducted according to the priority.

7. The method for obtaining control power of a crusher pump group according to claim 1, characterized in that: The crusher working parts include a crushing hammer (1), a crushing posture adjustment cylinder (2), and a boom cylinder (3).

8. A computer device, characterized in that: The method comprises a processor and a memory connected to the processor, wherein a computer program is stored in the memory, and when the computer program is executed by the processor, the steps of the method for obtaining control power of a crusher pump group according to any one of claims 1 to 7 are executed.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the steps of the method for obtaining control power of a crusher pump group according to any one of claims 1 to 7 are implemented.

10. A computer program product comprising a computer program / instructions, characterized in that When the computer program / instruction is executed by a processor, the steps of the method for controlling power acquisition of a crusher pump group according to any one of claims 1 to 7 are implemented.

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