CN112392088A - Breaking hammer control method and device - Google Patents
Breaking hammer control method and device Download PDFInfo
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- CN112392088A CN112392088A CN201910751483.1A CN201910751483A CN112392088A CN 112392088 A CN112392088 A CN 112392088A CN 201910751483 A CN201910751483 A CN 201910751483A CN 112392088 A CN112392088 A CN 112392088A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/30—Auxiliary apparatus, e.g. for thawing, cracking, blowing-up, or other preparatory treatment of the soil
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/30—Auxiliary apparatus, e.g. for thawing, cracking, blowing-up, or other preparatory treatment of the soil
- E02F5/305—Arrangements for breaking-up hard ground
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2221—Control of flow rate; Load sensing arrangements
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2221—Control of flow rate; Load sensing arrangements
- E02F9/2232—Control of flow rate; Load sensing arrangements using one or more variable displacement pumps
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
- E02F9/2267—Valves or distributors
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Abstract
The application provides a breaking hammer control method and a device, wherein the method comprises the following steps: acquiring target striking frequency of a breaking hammer received by a control panel and temperature of current hydraulic oil in a hydraulic oil tank detected by a temperature sensor; according to the target striking frequency and the temperature, outputting a first current signal to a hydraulic pump to enable the hydraulic pump to output first hydraulic oil to a crushing pipeline, wherein the output quantity of the first hydraulic oil is determined according to the first current signal; and controlling the breaking hammer to strike according to the first hydraulic oil.
Description
Technical Field
The application relates to the technical field of control, in particular to a breaking hammer control method and device.
Background
As is known, the working conditions of an excavator are mainly the shoveling, loading and crushing operations of the earth, and the standard working attachment is a bucket. But in some specific operating conditions it may be necessary to use different work attachments to improve the efficiency of the work. In order to meet the working requirements under different working conditions, most manufacturers in the market can provide a complete machine platform with replaceable working accessories, for example, an excavator platform with accessories such as a mower, a wood clamping fork and a breaking hammer can be additionally arranged.
Because different working conditions have different requirements on the working performance of the whole machine, the unified platform is difficult to give consideration to the oil consumption and the performance of different working accessories during working. Especially, when the demand on the flow of the hydraulic system in the breaking hammer mode is greatly different from that in the excavation mode, if the control system in the excavation mode is adopted in the breaking hammer mode, the working efficiency and the fuel economy of the whole machine can be reduced, and the working performance of the breaking hammer cannot be fully exerted.
Disclosure of Invention
In view of the above, an object of the present application is to provide a method and a device for controlling a breaking hammer, which can improve the working performance of the breaking hammer.
In a first aspect, an embodiment of the present application provides a breaking hammer control method, where the method includes:
acquiring target striking frequency of a breaking hammer received by a control panel and temperature of current hydraulic oil in a hydraulic oil tank detected by a temperature sensor;
according to the target striking frequency and the temperature, outputting a first current signal to a hydraulic pump to enable the hydraulic pump to output first hydraulic oil to a crushing pipeline, wherein the output quantity of the first hydraulic oil is determined according to the first current signal;
and controlling the breaking hammer to strike according to the first hydraulic oil.
Optionally, before the obtaining of the target striking frequency of the breaking hammer received by the control panel and the temperature of the current hydraulic oil in the hydraulic oil tank detected by the temperature sensor, the method further includes:
detecting the working state of a pressure switch of a crushing pipeline;
and if the working state of the pressure switch of the crushing pipeline is an opening state, the step of acquiring the target striking frequency of the crushing hammer received by the control panel and the temperature of the current hydraulic oil in the hydraulic oil tank detected by the temperature sensor is executed.
Optionally, the method further comprises:
and if the working state of the crushing pipeline pressure switch is a closed state, ending the operation.
Optionally, the first current signal output to the hydraulic pump according to the target striking frequency and the temperature includes:
determining a first flow of hydraulic oil required by the breaking hammer according to the target striking frequency:
determining a second flow rate of the leaked hydraulic oil of the crushing pipeline according to the temperature;
determining a first current signal output to the hydraulic pump based on the first flow rate and the second flow rate.
Optionally, before the obtaining of the target striking frequency of the breaking hammer received by the control panel and the temperature of the current hydraulic oil in the hydraulic oil tank detected by the temperature sensor, the method further includes:
acquiring an engine control signal in the excavator;
outputting a second current signal to the hydraulic pump according to the engine control signal so that the hydraulic pump outputs second hydraulic oil; the output quantity of the second hydraulic oil is determined according to a second current signal;
so that the hydraulic pump exports first hydraulic oil to broken pipeline, include:
and adjusting the second hydraulic oil output by the hydraulic pump into the first hydraulic oil by using the first current signal.
In a second aspect, embodiments of the present application provide a demolition hammer control apparatus, the apparatus including:
the acquisition module is used for acquiring the target striking frequency of the breaking hammer received by the control panel and the temperature of the current hydraulic oil in the hydraulic oil tank detected by the temperature sensor;
the output module is used for outputting a first current signal to a hydraulic pump according to the target striking frequency and the temperature so that the hydraulic pump outputs first hydraulic oil to a crushing pipeline, and the output quantity of the first hydraulic oil is determined according to the first current signal;
and the control module is used for controlling the breaking hammer to strike according to the first hydraulic oil.
Optionally, the method further comprises: a detection module to:
detecting the working state of a pressure switch of a crushing pipeline;
and if the working state of the pressure switch of the crushing pipeline is an opening state, the step of acquiring the target striking frequency of the crushing hammer received by the control panel and the temperature of the current hydraulic oil in the hydraulic oil tank detected by the temperature sensor is executed.
Optionally, the detection module is further configured to:
and if the working state of the crushing pipeline pressure switch is a closed state, ending the operation.
Optionally, the output module is specifically configured to:
determining a first flow of hydraulic oil required by the breaking hammer according to the target striking frequency:
determining a second flow rate of the leaked hydraulic oil of the crushing pipeline according to the temperature;
determining a first current signal output to the hydraulic pump based on the first flow rate and the second flow rate.
Optionally, the obtaining module is further configured to:
acquiring an engine control signal in the excavator;
the output module is further configured to:
outputting a second current signal to the hydraulic pump according to the engine control signal so that the hydraulic pump outputs second hydraulic oil; the output quantity of the second hydraulic oil is determined according to a second current signal;
the output module is when so that the hydraulic pump is to broken pipeline output first hydraulic oil, specifically is used for:
and adjusting the second hydraulic oil output by the hydraulic pump into the first hydraulic oil by using the first current signal.
According to the breaking hammer control method provided by the embodiment of the application, according to the target striking frequency received by the control panel and the temperature detected by the temperature sensor, the first current signal is output to the hydraulic pump, so that the hydraulic pump outputs the first hydraulic oil to the breaking pipeline, the proper hydraulic oil is provided for the breaking hammer, the first hydraulic oil provided for the breaking hammer can enable the breaking hammer to work under the target striking frequency, the waste of the hydraulic oil is reduced, and the working performance of the excavator is improved.
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 is a schematic flow chart of a breaking hammer control method according to an embodiment of the present disclosure;
fig. 2 is a block diagram of a control system of a breaking hammer according to an embodiment of the present disclosure;
fig. 3 is a schematic view of a first structure of a breaking hammer control device according to an embodiment of the present disclosure;
fig. 4 is a second structural schematic diagram of a breaking hammer control device according to an embodiment of the present disclosure.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.
The working conditions of the excavator are mainly the shoveling, loading and crushing operations of the earth, but under some specific working conditions, the excavator needs to use different working attachments to improve the working efficiency. In order to meet the working requirements under different working conditions, the unified platform is difficult to consider the balance of oil consumption and performance of different accessories during working due to different requirements of different working conditions on the working performance of the excavator. Especially, the demand for the flow of the hydraulic system in the breaking hammer mode is greatly different from that in the excavation mode, the flow of the hydraulic oil required by the excavator in the excavation mode is far larger than that required by the excavator in the breaking mode, if the excavator works in the breaking mode, the flow of the hydraulic oil provided is the same as that of the hydraulic oil provided in the excavation model, the hydraulic flow provided by the excavator for the breaking hammer is overlarge, the striking frequency of the breaking hammer is overlarge, therefore, the working efficiency and the fuel economy of the whole excavator can be reduced by adopting the same control system in the breaking hammer mode and the excavation mode, and the working performance of the breaking hammer cannot be fully exerted.
According to the breaking hammer control method provided by the embodiment of the application, according to the target striking frequency received by the control panel and the temperature detected by the temperature sensor, the first current signal is output to the hydraulic pump, so that the hydraulic pump outputs the first hydraulic oil to the breaking pipeline, the proper hydraulic oil is provided for the breaking hammer, the first hydraulic oil provided for the breaking hammer can enable the breaking hammer to work under the target striking frequency, the waste of the hydraulic oil is reduced, and the working performance of the excavator is improved.
The embodiment of the application provides a breaking hammer control method, as shown in fig. 1, the method includes:
s101, acquiring the target striking frequency of the breaking hammer received by the control panel and the temperature of the current hydraulic oil in the hydraulic oil tank detected by the temperature sensor.
Here, the control panel is generally a display in the excavator, the display may be a touch display, the control panel may display a plurality of striking frequencies, and a user may select a required striking frequency from the control panel according to a requirement, and determine the striking frequency selected by the user as a target striking frequency; the temperature of the current hydraulic oil in the hydraulic oil tank is detected through a temperature sensor arranged on the hydraulic oil tank, and the hydraulic oil tank is arranged above the hydraulic pump.
Before the application is described, when the working mode of the excavator is the crushing mode, in order to facilitate understanding of specific operation details of the excavator in the crushing mode, a control system of the excavator is briefly introduced:
referring to fig. 2, the system of the excavator includes: the accelerator knob 1 is used for transmitting an engine gear signal required by a current user to a vehicle control unit (VECU)15, and the vehicle control unit (VECU)15 is used for controlling the rotating speed of the engine 4 and the current of the working pump power regulation proportional solenoid valve 6.
The display (IECU)2 is used to display the current information (such as the grade of the breaking hammer, the engine speed, etc.) of the whole vehicle, and support the user to set the parameters (such as the grade of the breaking hammer, the control mode of the breaking hammer, etc.) of the breaking hammer through the multifunctional Keyboard (KEYPAD)5, and then transmit the information to the vehicle controller 15 for control.
The engine controller (EECU)3 is used for receiving the engine speed requirement of the vehicle control unit VECU15 and controlling the engine speed to be stabilized in the required range.
The engine 4 is a power output component of the whole vehicle and is used for driving a hydraulic working pump 7 (also called a hydraulic pump, hereinafter, the hydraulic pump 7 is used) to provide power for a hydraulic system of the whole vehicle. A multifunction key pad (KEYPAD)5 integrates the operation buttons of the breaking hammer button and display (IECU)2 to enter/exit the breaking mode and set the breaking hammer parameters.
The working pump power adjusting proportional electromagnetic valve 6 is controlled by the vehicle control unit 15 through output current to adjust the angle of the swash plate of the hydraulic pump 7, so as to achieve the purpose of adjusting the output power (flow) of the hydraulic pump 7. The hydraulic pump 7 obtains mechanical energy through the engine 4, and converts the mechanical energy into pressure energy of hydraulic oil, so as to provide power for the hydraulic system of the whole vehicle (in a crushing mode, hydraulic oil enters the crushing hammer through a crushing pipeline, so that the crushing hammer is controlled to strike). The breaking hammer flow control proportional electromagnetic valve 8 is controlled by the vehicle control unit 15 through output current to adjust the feedback pressure of the hydraulic pump 7, so as to achieve the purpose of adjusting the output power (flow) of the hydraulic pump 7. The breaking hammer power switch valve 9 is controlled by the vehicle control unit 15 to open/cut off the hydraulic power of the breaking hammer pipeline (hydraulic control channel).
The breaking hammer switch control valve 10 is controlled by the vehicle control unit 15 and is used for directly driving the breaking hammer to act (an electric control mode). The breaking hammer control pedal switch 11 is a control switch for the working of the breaking hammer (in a hydraulic control mode), directly drives the breaking hammer to act, the breaking hammer handle switch 12 is a control switch for the working of the breaking hammer (in an electric control mode), transmits a breaking hammer control signal to the vehicle control unit 15, and the vehicle control unit 15 drives the breaking hammer switch control valve 10 to control the working state of the breaking hammer. The hydraulic oil temperature sensor 13 is configured to convert a hydraulic oil temperature signal into an electrical signal and transmit the electrical signal to the vehicle control unit 15. The crushing pipeline pressure switch 14 is used for converting a pressure signal of a crushing hammer pipeline into an electric signal and transmitting the electric signal to the vehicle control unit 15, the vehicle control unit 15 is used for receiving the vehicle electric signal and finishing control over electric devices through logical operation to achieve the function of an electric control system of the crushing hammer, and the safety locking switch 16 inputs a switch signal into the vehicle control unit VECU15 to serve as a control factor for entering/exiting a crushing mode.
S102, outputting a first current signal to a hydraulic pump according to the target striking frequency and the temperature, so that the hydraulic pump outputs first hydraulic oil to a crushing pipeline, wherein the output quantity of the first hydraulic oil is determined according to the first current signal.
Here, the first current signal is transmitted to a breaking hammer flow control proportional solenoid valve in the hydraulic pump, the first current signal adjusts the power of the hydraulic pump through the breaking hammer flow control proportional solenoid valve, that is, the output quantity of the hydraulic oil output by the hydraulic pump, different current signals correspond to different hydraulic oil output quantities, the smaller the current signal, the larger the output quantity of the hydraulic oil output by the hydraulic pump, and accordingly, the output quantity of the second hydraulic oil is generally larger than the output quantity of the first hydraulic oil.
When the first current signal is output to the hydraulic pump according to the target striking frequency and the temperature, the method comprises the following steps:
determining a first flow of hydraulic oil required by the breaking hammer according to the target striking frequency:
determining a second flow rate of the leaked hydraulic oil of the crushing pipeline according to the temperature;
a first current signal output by the hydraulic pump is determined based on the first flow rate and the second flow rate.
Here, since the hydraulic oil needs to pass through the crushing pipeline from the hydraulic oil tank to reach the crushing hammer, if the crushing hammer is made to operate at the target striking frequency, theoretically, the first flow rate of the hydraulic oil needed by the operation of the crushing hammer can be determined based on the target striking frequency, however, the crushing pipeline may have an oil leakage phenomenon, and when the leakage exists in the crushing pipeline, the flow rate reaching the crushing hammer is smaller than the first flow rate needed by the actual operation, so that the second flow rate of the hydraulic oil leaked from the crushing pipeline needs to be considered, and thus, the hydraulic flow rate finally input to the crushing hammer is the flow rate needed by the operation of the crushing hammer, and the operation of the crushing hammer at the target striking frequency is realized.
In a specific implementation process, according to the target striking frequency and a linear operation relation between the preset target striking frequency and the first flow, determining a first flow of hydraulic oil required by the breaking hammer: determining a second flow of the leaked hydraulic oil of the crushing pipeline according to the temperature of the hydraulic oil in the hydraulic oil tank and an exponential operation relation between a preset temperature and the second flow; and determining a first current signal output to the hydraulic pump according to the first flow and the second flow, so that the hydraulic pump outputs hydraulic oil to the crushing pipeline under the first current signal, and finally realizing that the crushing hammer works under the target striking frequency. The operation relation between the amount of the hydraulic oil finally output by the hydraulic pump and the first current signal is a linear operation relation.
For example, if the target impact frequency is F1, the temperature of the hydraulic oil in the hydraulic tank is T2, and the flow rate Q1, Q1 ═ F required for the breaking hammer is calculated from the target impact frequency F11(F1) Calculating the flow leakage quantity Q2 of the crushing pipeline according to the temperature T2 of the hydraulic oil, wherein the Q2 is f2(T2), Q1+ Q2 is the total flow Q required to break the pipeline. And calculating the target current I, I ═ f (Q) of the breaking hammer flow control proportional electromagnet according to the total flow Q.
This application is to the first hydraulic oil of quartering hammer output, the hydraulic pump obtains after adjusting through the volume of the hydraulic oil of working pump power regulation proportion solenoid valve output, because the volume of first hydraulic oil is the volume of the hydraulic oil that the excavator needs under the excavation mode, and the volume of the hydraulic oil under the excavation mode is greater than the volume of the hydraulic oil that needs under the fragmentation mode, consequently, need further adjust the volume of first hydraulic oil, in order to satisfy the volume of needing of the hydraulic oil under the fragmentation mode, and then reduce the waste to the hydraulic oil, improve the working property of excavator.
Before obtaining the target hitting frequency of the breaking hammer received by the control panel and the temperature of the current hydraulic oil in the hydraulic oil tank detected by the temperature sensor, the method further comprises the following steps:
acquiring an engine control signal in the excavator;
outputting a second current signal to the hydraulic pump according to the engine control signal so that the hydraulic pump outputs second hydraulic oil; the output quantity of the second hydraulic oil is determined according to a second current signal;
the engine control signal is a voltage signal corresponding to the gear of the accelerator knob and is used for controlling the torque and the power of the engine, wherein the accelerator is used for controlling the engine to work; the second current signal is transmitted to a working pump power regulation proportional electromagnetic valve in the hydraulic pump, the second current signal regulates the power of the hydraulic pump through the working pump power regulation proportional electromagnetic valve, namely, the output quantity of the hydraulic oil output by the hydraulic pump is different, different current signals correspond to different hydraulic oil output quantities, and the smaller the current signal is, the larger the output quantity of the hydraulic oil output by the hydraulic pump is.
After the voltage signal corresponding to the accelerator knob gear is obtained, inquiring a current signal corresponding to the voltage signal which is the same as the voltage signal corresponding to the accelerator knob gear in a corresponding relation table between the voltage signal corresponding to the accelerator knob gear and the current signal; the queried current signal is taken as the second current signal. The voltage signals in the corresponding relation table correspond to the voltage signals output by the gears of the accelerator knob, and the voltage signals output by different gears of the accelerator knob are different.
In the specific implementation process, after a vehicle control unit in an excavator receives an output voltage signal corresponding to an accelerator knob gear, a current signal corresponding to a voltage signal which is the same as the voltage signal output by an accelerator and received by the vehicle control unit is inquired from a corresponding relation table between the voltage signal and the current signal, the inquired current signal is used as a second current signal, the second current signal is transmitted to a working pump power regulation proportion electromagnetic valve in a hydraulic pump, the output power of the hydraulic pump is regulated, the hydraulic pump outputs hydraulic oil under the regulated output power, a crushing pipeline pressure switch is arranged in a crushing pipeline, and the hydraulic oil enters the crushing pipeline only when the crushing pipeline pressure switch is turned on.
When the excavator is in a crushing mode, a user can control the foot switch to open the crushing pipeline pressure switch through the crushing hammer for controlling the crushing pressure switch, and after the user steps on the crushing hammer control foot switch, the method further comprises the following steps:
detecting the working state of the crushing pipeline pressure switch;
and if the working state of the pressure switch of the crushing pipeline is an opening state, the step of acquiring the target striking frequency of the crushing hammer received by the control panel and the temperature of the current hydraulic oil in the hydraulic oil tank detected by the temperature sensor is executed.
And if the working state of the crushing pipeline pressure switch is a closed state, ending the operation.
In the specific implementation process, after the pressure switch of the crushing pipeline is opened, the hydraulic oil enters the crushing pipeline, so that the working state of the pressure switch of the crushing pipeline can be determined by detecting the pressure of the hydraulic oil in the crushing pipeline, when the pressure of the hydraulic oil in the crushing pipeline is higher than a preset pressure threshold, the working state of the pressure switch of the crushing pipeline is in an open state, step S103 (described below) is executed when the working state of the pressure switch of the crushing pipeline is in an open state, if the working state of the pressure switch of the crushing pipeline is in a closed state, whether the pressure of the hydraulic oil in the crushing pipeline is higher than the preset pressure threshold is continuously detected, it should be noted here that when the pressure of the hydraulic oil in the crushing pipeline is not detected or the detected pressure is lower than the preset pressure threshold, a user may not step on the crushing hammer to control the foot switch, or the crushing pipeline has a fault, or the crushing hammer controls the pedal switch to have a fault, and at the moment, the user can overhaul the crushing pipeline or the crushing hammer controls the pedal switch.
So that hydraulic pump exports first hydraulic oil to broken pipeline, include:
and adjusting second hydraulic oil output to a crushing pipeline by the hydraulic pump into the first hydraulic oil by utilizing the first current signal.
In a specific implementation process, the vehicle control unit transmits the first current signal to a breaking hammer flow control proportional electromagnetic valve in the hydraulic pump, so that the hydraulic pump adjusts second hydraulic oil output by the hydraulic pump into first hydraulic oil through the breaking hammer flow control proportional electromagnetic valve, and transmits the first hydraulic oil to the breaking hammer.
S103, controlling the breaking hammer to strike according to the first hydraulic oil.
In a specific implementation process, the vehicle control unit controls the hydraulic pump to transmit the first hydraulic oil to the breaking hammer, so that the breaking hammer performs striking work at a target striking frequency.
According to the breaking hammer control method provided by the embodiment of the application, according to the target striking frequency received by the control panel and the temperature detected by the temperature sensor, the first current signal is output to the hydraulic pump, so that the hydraulic pump outputs the first hydraulic oil to the breaking pipeline, the proper hydraulic oil is provided for the breaking hammer, the first hydraulic oil provided for the breaking hammer can enable the breaking hammer to work under the target striking frequency, the waste of the hydraulic oil is reduced, and the working performance of the excavator is improved.
The embodiment of the present application provides a breaking hammer control device, as shown in fig. 3, the device includes:
the acquisition module 31 is configured to acquire a target striking frequency of the breaking hammer received by the control panel and a temperature of current hydraulic oil in the hydraulic oil tank detected by the temperature sensor;
the output module 32 is configured to output a first current signal to a hydraulic pump according to the target striking frequency and the temperature, so that the hydraulic pump outputs first hydraulic oil to a crushing pipeline, where an output amount of the first hydraulic oil is determined according to the first current signal;
and the control module 33 is used for controlling the breaking hammer to strike according to the first hydraulic oil.
Optionally, the output module 32 is specifically configured to:
determining a first flow of hydraulic oil required by the breaking hammer according to the target striking frequency:
determining a second flow rate of the leaked hydraulic oil of the crushing pipeline according to the temperature;
determining a first current signal output to the hydraulic pump based on the first flow rate and the second flow rate.
Optionally, the obtaining module 31 is further configured to:
acquiring an engine control signal in the excavator;
the output module 32 is further configured to:
outputting a second current signal to the hydraulic pump according to the engine control signal so that the hydraulic pump outputs second hydraulic oil; the output quantity of the second hydraulic oil is determined according to a second current signal;
when the output module 32 enables the hydraulic pump to output the first hydraulic oil to the crushing pipeline, the output module is specifically configured to:
and adjusting the second hydraulic oil output by the hydraulic pump into the first hydraulic oil by using the first current signal.
The embodiment of the present application further provides a breaking hammer control device, as shown in fig. 4, the device further includes: a detection module 34, the detection module 34 being configured to:
detecting the working state of a pressure switch of a crushing pipeline;
and if the working state of the pressure switch of the crushing pipeline is an opening state, the step of acquiring the target striking frequency of the crushing hammer received by the control panel and the temperature of the current hydraulic oil in the hydraulic oil tank detected by the temperature sensor is executed.
The detection module 34 is further configured to:
and if the working state of the crushing pipeline pressure switch is a closed state, ending the operation.
In the embodiments provided in the present application, it should be understood that the disclosed system and method may be implemented in other ways. The above-described system embodiments are merely illustrative, and for example, the division of the units is only one logical functional division, and there may be other divisions in actual implementation, and for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of systems or units through some communication interfaces, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments provided in the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus once an item is defined in one figure, it need not be further defined and explained in subsequent figures, and moreover, the terms "first", "second", "third", etc. are used merely to distinguish one description from another and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present application, and are used for illustrating the technical solutions of the present application, but not limiting the same, and the scope of the present application is not limited thereto, and although the present application is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope disclosed in the present application; such modifications, changes or substitutions do not depart from the spirit and scope of the present disclosure, which should be construed in light of the above teachings. Are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A method of demolition hammer control, the method comprising:
acquiring target striking frequency of a breaking hammer received by a control panel and temperature of current hydraulic oil in a hydraulic oil tank detected by a temperature sensor;
according to the target striking frequency and the temperature, outputting a first current signal to a hydraulic pump to enable the hydraulic pump to output first hydraulic oil to a crushing pipeline, wherein the output quantity of the first hydraulic oil is determined according to the first current signal;
and controlling the breaking hammer to strike according to the first hydraulic oil.
2. The breaking hammer control method according to claim 1, wherein before the obtaining of the target striking frequency of the breaking hammer received by the control panel and the temperature of the current hydraulic oil in the hydraulic oil tank detected by the temperature sensor, further comprising:
detecting the working state of a pressure switch of a crushing pipeline;
and if the working state of the pressure switch of the crushing pipeline is an opening state, the step of acquiring the target striking frequency of the crushing hammer received by the control panel and the temperature of the current hydraulic oil in the hydraulic oil tank detected by the temperature sensor is executed.
3. The breaking hammer control method of claim 2, further comprising:
and if the working state of the crushing pipeline pressure switch is a closed state, ending the operation.
4. The breaking hammer control method according to claim 1, wherein the first current signal output to the hydraulic pump according to the target striking frequency and the temperature includes:
determining a first flow of hydraulic oil required by the breaking hammer according to the target striking frequency:
determining a second flow rate of the leaked hydraulic oil of the crushing pipeline according to the temperature;
determining a first current signal output to the hydraulic pump based on the first flow rate and the second flow rate.
5. The breaking hammer control method according to claim 1, wherein before the obtaining of the target striking frequency of the breaking hammer received by the control panel and the temperature of the current hydraulic oil in the hydraulic oil tank detected by the temperature sensor, further comprising:
acquiring an engine control signal in the excavator;
outputting a second current signal to the hydraulic pump according to the engine control signal so that the hydraulic pump outputs second hydraulic oil; the output quantity of the second hydraulic oil is determined according to a second current signal;
so that the hydraulic pump exports first hydraulic oil to broken pipeline, include:
and adjusting the second hydraulic oil output by the hydraulic pump into the first hydraulic oil by using the first current signal.
6. A demolition hammer control apparatus, the apparatus comprising:
the acquisition module is used for acquiring the target striking frequency of the breaking hammer received by the control panel and the temperature of the current hydraulic oil in the hydraulic oil tank detected by the temperature sensor;
the output module is used for outputting a first current signal to a hydraulic pump according to the target striking frequency and the temperature so that the hydraulic pump outputs first hydraulic oil to a crushing pipeline, and the output quantity of the first hydraulic oil is determined according to the first current signal;
and the control module is used for controlling the breaking hammer to strike according to the first hydraulic oil.
7. The demolition hammer control apparatus as recited in claim 6, further comprising: a detection module to:
detecting the working state of a pressure switch of a crushing pipeline;
and if the working state of the pressure switch of the crushing pipeline is an opening state, the step of acquiring the target striking frequency of the crushing hammer received by the control panel and the temperature of the current hydraulic oil in the hydraulic oil tank detected by the temperature sensor is executed.
8. The demolition hammer control apparatus of claim 7 wherein the detection module is further configured to:
and if the working state of the crushing pipeline pressure switch is a closed state, ending the operation.
9. The demolition hammer control apparatus of claim 6 wherein the output module is specifically configured to:
determining a first flow of hydraulic oil required by the breaking hammer according to the target striking frequency:
determining a second flow rate of the leaked hydraulic oil of the crushing pipeline according to the temperature;
determining a first current signal output to the hydraulic pump based on the first flow rate and the second flow rate.
10. The demolition hammer control apparatus of claim 6 wherein the acquisition module is further configured to:
acquiring an engine control signal in the excavator;
the output module is further configured to:
outputting a second current signal to the hydraulic pump according to the engine control signal so that the hydraulic pump outputs second hydraulic oil; the output quantity of the second hydraulic oil is determined according to a second current signal;
the output module is when so that the hydraulic pump is to broken pipeline output first hydraulic oil, specifically is used for:
and adjusting the second hydraulic oil output by the hydraulic pump into the first hydraulic oil by using the first current signal.
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| CN201910751483.1A CN112392088A (en) | 2019-08-15 | 2019-08-15 | Breaking hammer control method and device |
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| CN201910751483.1A CN112392088A (en) | 2019-08-15 | 2019-08-15 | Breaking hammer control method and device |
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