CN104831930A - Pumping control method, device, system and concrete pump truck - Google Patents
Pumping control method, device, system and concrete pump truck Download PDFInfo
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- CN104831930A CN104831930A CN201410806505.7A CN201410806505A CN104831930A CN 104831930 A CN104831930 A CN 104831930A CN 201410806505 A CN201410806505 A CN 201410806505A CN 104831930 A CN104831930 A CN 104831930A
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Abstract
The invention discloses a pumping control method. The pumping control method includes the following steps of: receiving the pressure value of an oil pump in pumping; judging whether the pressure value of the oil pump is greater than a preset threshold value; and controlling the displacement of the oil pump according to the pressure value of the oil pump and the preset threshold value when judging that the pressure value of the oil pump is greater than the preset threshold value. According to the pumping control method provided by the embodiment of the invention, an inconvenient processing mode in which manual pumping termination, pipe disassembly for examination, and jog pumping are adopted can be replaced by a mode in which the displacement of the oil pump can be controlled automatically, and workload of field troubleshooting of service engineers can be decreased, and speed drop and pressure building up can be effectively prevented, and therefore, damage to a pumping system caused by pressure building up of an oil cylinder can be decreased, and potential safety hazards of a construction site can be avoided. The invention also discloses a pumping control device, a pumping control system and a concrete pump truck with the pumping control system.
Description
Technical field
The present invention relates to heavy-duty machinery systems technology field, particularly relate to a kind of pumping control method, device, system and a kind of concrete mixer with this control system.
Background technology
The phenomenons such as concrete mixer is in pumping procedure, and the false plugging phenomenon of pumping system happens occasionally, and namely this just causes pumping to fall speed, builds the pressure, pumping operating mode is unstable, have a strong impact on pump truck application life, site construction progress, become the potential safety hazard of site operation.
At present, the general fashion solving the false plugging problem of this type of pumping is exactly by after service engineering Shi Rengong termination of pumping, check whether carrier pipe has plugging situation, if do not had, then operate pumping a period of time by artificial " crawl ", continue afterwards to carry out pumping work with normal speed, during this period, rate of pumping is always constant.
But Problems existing is: (1) not only adds the workload of service engineering teacher scene investigation fault by the way, also affects construction speed simultaneously; (2) carry out termination of pumping for false plugging (building the pressure) situation, tear the pumping process such as pipe inspection, crawl open, complex operation; (3) in testing process, because rate of pumping remains unchanged, so false plugging (building the pressure) phenomenon still likely occurs.
Summary of the invention
Object of the present invention is intended to solve one of technical problem in correlation technique at least to a certain extent.
For this reason, first object of the present invention is to propose a kind of pumping control method.The method is by the mode of automatic control oil pump discharge capacity, replace artificial termination of pumping, tear pipe inspection open, the processing mode of this inconvenience of crawl pumping, effectively prevent speed and build the pressure, thus reducing the infringement to pumping system when oil cylinder builds the pressure, avoiding the potential safety hazard of job site.
Second object of the present invention is to propose a kind of pumping control device.
3rd object of the present invention is to propose a kind of pumping control system.
4th object of the present invention is to propose a kind of concrete mixer.
To achieve these goals, the pumping control method of first aspect present invention embodiment, comprising: the force value receiving oil pump in pumping; Judge whether the force value of described oil pump is greater than pre-set threshold value; And if judge that the force value of described oil pump is greater than described pre-set threshold value, then according to the force value of described oil pump and described pre-set threshold value, described oily pump delivery is controlled.
According to the pumping control method of the embodiment of the present invention, the force value of oil pump in pumping can be received, and judge whether the force value of oil pump is greater than pre-set threshold value, if judge that the force value of oil pump is greater than pre-set threshold value, then according to the force value of oil pump and pre-set threshold value, oily pump delivery is controlled, make when there is false plugging (or building the pressure) situation, by the mode of automatic control oil pump discharge capacity, replace artificial termination of pumping, tear pipe inspection open, the processing mode of this inconvenience of crawl pumping, decrease the workload of service engineering teacher scene investigation fault, and effectively prevent speed and build the pressure, thus the infringement reduced to pumping system when oil cylinder builds the pressure, avoid the potential safety hazard of job site.
According to one embodiment of present invention, the described force value according to described oil pump and described pre-set threshold value control specifically to comprise to described oily pump delivery: the amplitude of accommodation value obtaining electric proportional valve electric current according to the force value of described oil pump, described pre-set threshold value and default current amplitude design formulas; Amplitude of accommodation value according to described electric proportional valve electric current controls described oily pump delivery.
Wherein, in an embodiment of the present invention, described default current amplitude design formulas is: Δ I=[(X-X
0)/(I
max-I
min)] * 100% wherein, X is the force value of oil pump described in described pumping, X
0for described pre-set threshold value, I
maxfor the maximum current of described electric proportional valve, I
minfor the minimum current of described electric proportional valve.
According to one embodiment of present invention, the described amplitude of accommodation value according to described electric proportional valve electric current controls specifically to comprise to described oily pump delivery: the amplitude of accommodation value according to described electric proportional valve electric current controls electric proportional valve, to make described electric proportional valve control oil pump aperture, described oil pump reduces described oily pump delivery according to described oil pump aperture.
To achieve these goals, the pumping control device of second aspect present invention embodiment, comprising: receiver module, for receiving the force value of oil pump in pumping; Judge module, for judging whether the force value of described oil pump is greater than pre-set threshold value; And control module, for when judging that the force value of described oil pump is greater than described pre-set threshold value, according to the force value of described oil pump and described pre-set threshold value, described oily pump delivery is controlled.
According to the pumping control device of the embodiment of the present invention, the force value of oil pump in the pumping detected by the receiver module reception pressure sensor in pumping control device, judge module judges whether the force value of oil pump is greater than pre-set threshold value, control module is when judge module judges that the force value of oil pump is greater than pre-set threshold value, according to the force value of oil pump and pre-set threshold value, oily pump delivery is controlled, make when there is false plugging (or building the pressure) situation, by the mode of automatic control oil pump discharge capacity, replace artificial termination of pumping, tear pipe inspection open, the processing mode of this inconvenience of crawl pumping, decrease the workload of service engineering teacher scene investigation fault, and effectively prevent speed and build the pressure, thus the infringement reduced to pumping system when oil cylinder builds the pressure, avoid the potential safety hazard of job site.
According to one embodiment of present invention, described control module specifically comprises: acquiring unit, obtains the amplitude of accommodation value of electric proportional valve electric current for the force value according to described oil pump, described pre-set threshold value and default current amplitude design formulas; Control unit, controls described oily pump delivery for the amplitude of accommodation value according to described electric proportional valve electric current.
Wherein, in an embodiment of the present invention, described default current amplitude design formulas is: Δ I=[(X-X
0)/(I
max-I
min)] * 100% wherein, X is the force value of oil pump described in described pumping, X
0for described pre-set threshold value, I
maxfor the maximum current of described electric proportional valve, I
minfor the minimum current of described electric proportional valve.
According to one embodiment of present invention, described control unit specifically for: control electric proportional valve according to the amplitude of accommodation value of described electric proportional valve electric current, to make described electric proportional valve control oil pump aperture, described oil pump reduces described oily pump delivery according to described oil pump aperture.
To achieve these goals, the pumping control system of third aspect present invention embodiment, comprising: oil pump; Pressure sensor, for detecting the force value of oil pump described in described pumping; And the pumping control device of second aspect present invention embodiment.
According to the pumping control system of the embodiment of the present invention, the force value of oil pump in the pumping detected by the receiver module reception pressure sensor in pumping control device, judge module judges whether the force value of oil pump is greater than pre-set threshold value, control module is when judge module judges that the force value of oil pump is greater than pre-set threshold value, according to the force value of oil pump and pre-set threshold value, oily pump delivery is controlled, make when there is false plugging (or building the pressure) situation, by the mode of automatic control oil pump discharge capacity, replace artificial termination of pumping, tear pipe inspection open, the processing mode of this inconvenience of crawl pumping, decrease the workload of service engineering teacher scene investigation fault, and effectively prevent speed and build the pressure, thus the infringement reduced to pumping system when oil cylinder builds the pressure, avoid the potential safety hazard of job site.
According to one embodiment of present invention, described pumping control system also comprises: electric proportional valve, and described electric proportional valve is used for control oil pump aperture; Described oil pump is used for reducing described oily pump delivery according to described oil pump aperture.
To achieve these goals, the concrete mixer of fourth aspect present invention embodiment, comprising: the pumping control system of third aspect present invention embodiment.
According to the concrete mixer of the embodiment of the present invention, by in pumping control system, the force value of oil pump in the pumping that receiver module reception pressure sensor in pumping control device detects, judge module judges whether the force value of oil pump is greater than pre-set threshold value, control module is when judge module judges that the force value of oil pump is greater than pre-set threshold value, according to the force value of oil pump and pre-set threshold value, oily pump delivery is controlled, make when there is false plugging (or building the pressure) situation, by the mode of automatic control oil pump discharge capacity, replace artificial termination of pumping, tear pipe inspection open, the processing mode of this inconvenience of crawl pumping, decrease the workload of service engineering teacher scene investigation fault, and effectively prevent speed and build the pressure, thus the infringement reduced to pumping system when oil cylinder builds the pressure, avoid the potential safety hazard of job site.
The aspect that the present invention adds and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
The present invention above-mentioned and/or additional aspect and advantage will become obvious and easy understand from the following description of the accompanying drawings of embodiments, wherein,
Fig. 1 is the flow chart of pumping control method according to an embodiment of the invention;
Fig. 2 is the flow chart of pumping control method in accordance with another embodiment of the present invention;
Fig. 3 is the structural representation of pumping control device according to an embodiment of the invention;
Fig. 4 is the structural representation of control module according to an embodiment of the invention;
Fig. 5 is the structural representation of pumping control system according to an embodiment of the invention; And
Fig. 6 is the structural representation of pumping control system in accordance with another embodiment of the present invention.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
Describe and can be understood in flow chart or in this any process otherwise described or method, represent and comprise one or more for realizing the module of the code of the executable instruction of the step of specific logical function or process, fragment or part, and the scope of the preferred embodiment of the present invention comprises other realization, wherein can not according to order that is shown or that discuss, comprise according to involved function by the mode while of basic or by contrary order, carry out n-back test, this should understand by embodiments of the invention person of ordinary skill in the field.
Below with reference to the accompanying drawings describe the pumping control method according to the embodiment of the present invention, device, system and there is the concrete mixer of this pumping control system.
Fig. 1 is the flow chart of pumping control method according to an embodiment of the invention.As shown in Figure 1, this pumping control method can comprise:
S101, receives the force value of oil pump in pumping.
Wherein, in an embodiment of the present invention, in pumping, the force value of oil pump obtains by pressure sensor, and namely pressure sensor can detect the pressure of oil pump in pumping in real time, and the force value detected is carried out Real-time Feedback.
S102, judges whether the force value of oil pump is greater than pre-set threshold value.
Wherein, in an embodiment of the present invention, it is maximum pumping pressure value that pre-set threshold value can be understood, namely when normal pumping, and the maximum force value that can reach of oil pump.
Particularly, the force value of the current oil pump received and maximum pumping pressure value can be contrasted, namely judge whether the current force value of oil pump is greater than maximum pumping pressure value.Should be appreciated that in an embodiment of the present invention, if judge that the force value of oil pump is less than or equal to pre-set threshold value, then can continue to receive the force value of the oil pump detected by pressure sensor in pumping.That is, when judging that the force value of oil pump is less than or equal to pre-set threshold value, pressure sensor can continue the pressure detecting oil pump in pumping.
S103, if judge that the force value of oil pump is greater than pre-set threshold value, then controls oily pump delivery according to the force value of oil pump and pre-set threshold value.
Particularly, when judging that the force value of oil pump is greater than pre-set threshold value, can judge that now oil pump is in the state of building the pressure, namely pump truck cannot normally pumping, the pressure increase amplitude size of oil pump can be obtained according to the force value of oil pump and pre-set threshold value, and regulate according to the electric current of this pressure increase amplitude size to electric proportional valve, decline to make oily pump delivery.Wherein, in an embodiment of the present invention, build the pressure and can be regarded as concrete pump hydraulic system working connection pressure far away higher than normal value.
Specifically, in one embodiment of the invention, the amplitude of accommodation value of electric proportional valve electric current can be obtained according to the force value of oil pump, pre-set threshold value and default current amplitude design formulas, and according to the amplitude of accommodation value of electric proportional valve electric current, oily pump delivery is controlled.Wherein, in an embodiment of the present invention, the current amplitude design formulas preset can be:
ΔI＝[(X-X
0)/(I
max-I
min)]*100％ (1)
Wherein, X is the force value of oil pump in pumping, X
0for pre-set threshold value, I
maxfor the maximum current of electric proportional valve, I
minfor the minimum current of electric proportional valve.
Particularly, the force value of pre-set threshold value and the oil pump received can be substituted into the amplitude of accommodation value (i.e. the numerical value of electric proportional valve electric current decline to be regulated) that above-mentioned formula (1) can obtain electric proportional valve electric current, and the discharge capacity of amplitude of accommodation value control oil pump according to this electric proportional valve electric current.In an embodiment of the present invention, amplitude of accommodation value according to electric proportional valve electric current to the specific implementation process that oily pump delivery controls is: the amplitude of accommodation value according to electric proportional valve electric current controls electric proportional valve, to make electric proportional valve control oil pump aperture, oil pump reduces oily pump delivery according to oil pump aperture.
That is, can control electric proportional valve and decline to make the electric current of electric proportional valve according to the amplitude of accommodation value of electric proportional valve electric current, electric proportional valve is according to this electric current decline situation control oil pump aperture, and oil pump reduces oily pump delivery according to this oil pump aperture.Thus, after oil pump capacity declines, in pumping, the pressure of oil pump also can decline immediately, prevents the generation of fast phenomenon, builds the pressure simultaneously and is able to effective alleviation.
It should be noted that, the pumping control method of the embodiment of the present invention carries out regulable control by pulse regulation mode to oily pump delivery.Particularly, while oily pump delivery being controlled according to the amplitude of accommodation value of electric proportional valve electric current, oil pump capacity carries out self-regulation according to actual loading situation again, in discharge capacity self-regulating process if any build the pressure situation time, the pumping control method of the embodiment of the present invention can continue Displacement Regulation, so repeatedly carries out pulse regulation control, reaches the object solving false plugging phenomenon, what effectively prevent false plugging phenomenon from causing speed and builds the pressure, thus to the damaged condition of pump truck system when reducing stifled pump.
According to the pumping control method of the embodiment of the present invention, the force value of oil pump in pumping can be received, and judge whether the force value of oil pump is greater than pre-set threshold value, if judge that the force value of oil pump is greater than pre-set threshold value, then according to the force value of oil pump and pre-set threshold value, oily pump delivery is controlled, make when there is false plugging (or building the pressure) situation, by the mode of automatic control oil pump discharge capacity, replace artificial termination of pumping, tear pipe inspection open, the processing mode of this inconvenience of crawl pumping, decrease the workload of service engineering teacher scene investigation fault, and effectively prevent speed and build the pressure, thus the infringement reduced to pumping system when oil cylinder builds the pressure, avoid the potential safety hazard of job site.
In order to make those skilled in the art to more clearly understand the present invention, will illustrate below.
For example, as shown in Figure 2, pressure sensor can detect the force value X of oil pump in real time, and is carried out feeding back (S201) by the force value X detected.First, the force value X (S202) of pressure sensor feedback can be received, and by this force value X and pre-set threshold value (the i.e. Pressure maximum value X of oil pump
0) carry out contrasting (S203).Afterwards, can judge whether the force value X of oil pump is greater than the Pressure maximum value X of oil pump
0(S204), if not, then pressure sensor continues to detect and feeds back the force value of oil pump; If so, then can judge now to occur stifled pump (or building the pressure) phenomenon, namely pump truck cannot normally pumping (S205), and according to force value X, the Pressure maximum value X of current oil pump
0required drop-out current range value (S206) when calculating Displacement Regulation with the current amplitude design formulas preset.Then, electric proportional valve is drop-out current range value control oil pump aperture (S207) needed for electric proportional valve, and finally, oil pump is according to the discharge capacity (S208) of oil pump aperture control oil pump.
In order to realize above-described embodiment, the invention allows for a kind of pumping control device.
Fig. 3 is the structural representation of pumping control device according to an embodiment of the invention.As shown in Figure 3, this pumping control device can comprise: receiver module 110, judge module 120 and control module 130.
Particularly, receiver module 110 can be used for the force value receiving oil pump in pumping.Wherein, in an embodiment of the present invention, in pumping, the force value of oil pump obtains by pressure sensor, and namely pressure sensor can detect the pressure of oil pump in pumping in real time, and the force value detected is carried out Real-time Feedback.
Judge module 120 can be used for judging whether the force value of oil pump is greater than pre-set threshold value.Wherein, in an embodiment of the present invention, it is maximum pumping pressure value that pre-set threshold value can be understood, namely when normal pumping, and the maximum force value that can reach of oil pump.
More specifically, the force value of the current oil pump received and maximum pumping pressure value can contrast by judge module 120, namely judge whether the current force value of oil pump is greater than maximum pumping pressure value.Should be appreciated that in an embodiment of the present invention, if judge that the force value of oil pump is less than or equal to pre-set threshold value, then receiver module 110 can continue to receive the force value of the oil pump detected by pressure sensor in pumping.That is, when judging that the force value of oil pump is less than or equal to pre-set threshold value, pressure sensor can continue the pressure detecting oil pump in pumping.
When control module 130 is used in and judges that the force value of oil pump is greater than pre-set threshold value, according to the force value of oil pump and pre-set threshold value, oily pump delivery is controlled.More specifically, when judge module 120 judges that the force value of oil pump is greater than pre-set threshold value, control module 130 can judge that now oil pump is in the state of building the pressure, namely pump truck cannot normally pumping, the pressure increase amplitude size of oil pump can be obtained according to the force value of oil pump and pre-set threshold value, and regulate according to the electric current of this pressure increase amplitude size to electric proportional valve, decline to make oily pump delivery.Wherein, in an embodiment of the present invention, build the pressure and can be regarded as concrete pump hydraulic system working connection pressure far away higher than normal value.
Specifically, in one embodiment of the invention, as shown in Figure 4, this control module 130 can comprise acquiring unit 131 and control unit 132.More specifically, acquiring unit 131 force value, pre-set threshold value and the default current amplitude design formulas that can be used for according to oil pump obtains the amplitude of accommodation value of electric proportional valve electric current.Wherein, in an embodiment of the present invention, the current amplitude design formulas preset is:
ΔI＝[(X-X
0)/(I
max-I
min)]*100％
Wherein, X is the force value of oil pump in pumping, X
0for pre-set threshold value, I
maxfor the maximum current of electric proportional valve, I
minfor the minimum current of electric proportional valve.
More specifically, the force value of pre-set threshold value and the oil pump received can be substituted into the amplitude of accommodation value (i.e. the numerical value of electric proportional valve electric current decline to be regulated) that above-mentioned formula (1) can obtain electric proportional valve electric current by acquiring unit 131.
Control unit 132 can be used for controlling oily pump delivery according to the amplitude of accommodation value of electric proportional valve electric current.Specifically, in an embodiment of the present invention, control unit 132 can control electric proportional valve according to the amplitude of accommodation value of electric proportional valve electric current, and to make electric proportional valve control oil pump aperture, oil pump reduces oily pump delivery according to oil pump aperture.That is, control unit 132 can control electric proportional valve and decline to make the electric current of electric proportional valve according to the amplitude of accommodation value of electric proportional valve electric current, and electric proportional valve is according to this electric current decline situation control oil pump aperture, and oil pump reduces oily pump delivery according to this oil pump aperture.Thus, after oil pump capacity declines, in pumping, the pressure of oil pump also can decline immediately, prevents the generation of fast phenomenon, builds the pressure simultaneously and is able to effective alleviation.
According to the pumping control device of the embodiment of the present invention, the force value of oil pump in pumping is received by receiver module, judge module judges whether the force value of oil pump is greater than pre-set threshold value, control module is when judge module judges that the force value of oil pump is greater than pre-set threshold value, according to the force value of oil pump and pre-set threshold value, oily pump delivery is controlled, make when there is false plugging (or building the pressure) situation, by the mode of automatic control oil pump discharge capacity, replace artificial termination of pumping, tear pipe inspection open, the processing mode of this inconvenience of crawl pumping, decrease the workload of service engineering teacher scene investigation fault, and effectively prevent speed and build the pressure, thus the infringement reduced to pumping system when oil cylinder builds the pressure, avoid the potential safety hazard of job site.
In order to realize above-described embodiment, the invention allows for a kind of pumping control system.
Fig. 5 is the structural representation of pumping control system according to an embodiment of the invention.As shown in Figure 5, this pumping control system can comprise: pumping control device 100, oil pump 200 and pressure sensor 300.Wherein, in an embodiment of the present invention, pumping control device 100 can be the pumping control device described in any one embodiment above-mentioned.It should be noted that, " pumping control device " that the present invention relates to can be understood is controller in pumping control system.
Particularly, pressure sensor 300 can be used for the force value detecting oil pump 200 in pumping.The concrete function that the concrete function of pumping control device 100 can refer to the pumping control device described in any one embodiment above-mentioned describes, and does not repeat them here.
Further, in one embodiment of the invention, as shown in Figure 6, this pumping control system also can comprise electric proportional valve 400, and electric proportional valve 400 can be used for control oil pump aperture.In an embodiment of the present invention, oil pump 200 can be used for the discharge capacity reducing oil pump 200 according to oil pump aperture.That is, pumping control device 100 can control electric proportional valve and decline to make the electric current of electric proportional valve according to the amplitude of accommodation value of electric proportional valve electric current, electric proportional valve 400 is according to this electric current decline situation control oil pump aperture, and oil pump 200 reduces the discharge capacity of oil pump 200 according to this oil pump aperture.Thus, after oil pump capacity declines, in pumping, the pressure of oil pump also can decline immediately, prevents the generation of fast phenomenon, builds the pressure simultaneously and is able to effective alleviation.
According to the pumping control system of the embodiment of the present invention, the force value of oil pump in the pumping detected by the receiver module reception pressure sensor in pumping control device, judge module judges whether the force value of oil pump is greater than pre-set threshold value, control module is when judge module judges that the force value of oil pump is greater than pre-set threshold value, according to the force value of oil pump and pre-set threshold value, oily pump delivery is controlled, make when there is false plugging (or building the pressure) situation, by the mode of automatic control oil pump discharge capacity, replace artificial termination of pumping, tear pipe inspection open, the processing mode of this inconvenience of crawl pumping, decrease the workload of service engineering teacher scene investigation fault, and effectively prevent speed and build the pressure, thus the infringement reduced to pumping system when oil cylinder builds the pressure, avoid the potential safety hazard of job site.
In order to realize above-described embodiment, the invention allows for a kind of concrete mixer, comprising the pumping control system described in any one embodiment above-mentioned.
According to the concrete mixer of the embodiment of the present invention, by in pumping control system, the force value of oil pump in the pumping that receiver module reception pressure sensor in pumping control device detects, judge module judges whether the force value of oil pump is greater than pre-set threshold value, control module is when judge module judges that the force value of oil pump is greater than pre-set threshold value, according to the force value of oil pump and pre-set threshold value, oily pump delivery is controlled, make when there is false plugging (or building the pressure) situation, by the mode of automatic control oil pump discharge capacity, replace artificial termination of pumping, tear pipe inspection open, the processing mode of this inconvenience of crawl pumping, decrease the workload of service engineering teacher scene investigation fault, and effectively prevent speed and build the pressure, thus the infringement reduced to pumping system when oil cylinder builds the pressure, avoid the potential safety hazard of job site.
Should be appreciated that each several part of the present invention can realize with hardware, software, firmware or their combination.In the above-described embodiment, multiple step or method can with to store in memory and the software performed by suitable instruction execution system or firmware realize.Such as, if realized with hardware, the same in another embodiment, can realize by any one in following technology well known in the art or their combination: the discrete logic with the logic gates for realizing logic function to data-signal, there is the special IC of suitable combinational logic gate circuit, programmable gate array (PGA), field programmable gate array (FPGA) etc.
In the description of this manual, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this manual or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (11)
1. a pumping control method, is characterized in that, comprises the following steps:
Receive the force value of oil pump in pumping;
Judge whether the force value of described oil pump is greater than pre-set threshold value; And
If judge that the force value of described oil pump is greater than described pre-set threshold value, then according to the force value of described oil pump and described pre-set threshold value, described oily pump delivery is controlled.
2. pumping control method as claimed in claim 1, it is characterized in that, the described force value according to described oil pump and described pre-set threshold value control specifically to comprise to described oily pump delivery:
The amplitude of accommodation value of electric proportional valve electric current is obtained according to the force value of described oil pump, described pre-set threshold value and default current amplitude design formulas;
Amplitude of accommodation value according to described electric proportional valve electric current controls described oily pump delivery.
3. pumping control method as claimed in claim 2, it is characterized in that, described default current amplitude design formulas is:
ΔI＝[(X-X
0)/(I
max-I
min)]*100％
Wherein, X is the force value of oil pump described in described pumping, X
0for described pre-set threshold value, I
maxfor the maximum current of described electric proportional valve, I
minfor the minimum current of described electric proportional valve.
4. pumping control method as claimed in claim 2, it is characterized in that, the described amplitude of accommodation value according to described electric proportional valve electric current controls specifically to comprise to described oily pump delivery:
Amplitude of accommodation value according to described electric proportional valve electric current controls electric proportional valve, and to make described electric proportional valve control oil pump aperture, described oil pump reduces described oily pump delivery according to described oil pump aperture.
5. a pumping control device, is characterized in that, comprising:
Receiver module, for receiving the force value of oil pump in pumping;
Judge module, for judging whether the force value of described oil pump is greater than pre-set threshold value; And
Control module, for when judging that the force value of described oil pump is greater than described pre-set threshold value, controls described oily pump delivery according to the force value of described oil pump and described pre-set threshold value.
6. pumping control device as claimed in claim 5, it is characterized in that, described control module specifically comprises:
Acquiring unit, obtains the amplitude of accommodation value of electric proportional valve electric current for the force value according to described oil pump, described pre-set threshold value and default current amplitude design formulas;
Control unit, controls described oily pump delivery for the amplitude of accommodation value according to described electric proportional valve electric current.
7. pumping control device as claimed in claim 6, it is characterized in that, described default current amplitude design formulas is:
ΔI＝[(X-X
0)/(I
max-I
min)]*100％
Wherein, X is the force value of oil pump described in described pumping, X
0for described pre-set threshold value, I
maxfor the maximum current of described electric proportional valve, I
minfor the minimum current of described electric proportional valve.
8. pumping control device as claimed in claim 6, is characterized in that, described control unit specifically for:
Amplitude of accommodation value according to described electric proportional valve electric current controls electric proportional valve, and to make described electric proportional valve control oil pump aperture, described oil pump reduces described oily pump delivery according to described oil pump aperture.
9. a pumping control system, is characterized in that, comprising:
Oil pump;
Pressure sensor, for detecting the force value of oil pump described in described pumping; And
Pumping control device according to any one of claim 5 to 8.
10. pumping control system as claimed in claim 9, is characterized in that, also comprise:
Electric proportional valve, described electric proportional valve is used for control oil pump aperture;
Described oil pump is used for reducing described oily pump delivery according to described oil pump aperture.
11. 1 kinds of concrete mixers, is characterized in that, comprising: the pumping control system according to any one of claim 9 to 10.
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|---|---|---|---|
| CN201410806505.7A CN104831930B (en) | 2014-12-19 | 2014-12-19 | Pumping control method, device, system and concrete mixer |
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|---|---|---|---|
| CN201410806505.7A CN104831930B (en) | 2014-12-19 | 2014-12-19 | Pumping control method, device, system and concrete mixer |
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| CN104831930A true CN104831930A (en) | 2015-08-12 |
| CN104831930B CN104831930B (en) | 2017-04-05 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN115013277B (en) * | 2022-06-20 | 2024-02-02 | 中联重科股份有限公司 | Method and device for determining pumpability of material and pumping control method and device |
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Effective date of registration: 20200927 Address after: No.202 Xuanfu street, Xuanhua District, Zhangjiakou, Hebei Province Patentee after: Hebei Leisa Heavy Construction Machinery Co., Ltd Address before: 102206 Changping District City, Shahe, Sha Yang Road, Beijing Patentee before: BEIQI FOTON MOTOR Co.,Ltd. |