CN105317667B - Pumping speed control method, control device, pumping system and engineering machinery - Google Patents
Pumping speed control method, control device, pumping system and engineering machinery Download PDFInfo
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- CN105317667B CN105317667B CN201410355467.8A CN201410355467A CN105317667B CN 105317667 B CN105317667 B CN 105317667B CN 201410355467 A CN201410355467 A CN 201410355467A CN 105317667 B CN105317667 B CN 105317667B
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- 238000005086 pumping Methods 0.000 title claims abstract description 391
- 238000000034 method Methods 0.000 title claims abstract description 47
- 230000001133 acceleration Effects 0.000 claims abstract description 14
- 230000006641 stabilisation Effects 0.000 claims description 20
- 238000011105 stabilization Methods 0.000 claims description 20
- 230000033228 biological regulation Effects 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 abstract 2
- 239000003921 oil Substances 0.000 description 56
- 230000008859 change Effects 0.000 description 14
- 239000000295 fuel oil Substances 0.000 description 7
- 239000000203 mixture Substances 0.000 description 5
- 238000011217 control strategy Methods 0.000 description 4
- 238000007906 compression Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000008450 motivation Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
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Abstract
The invention provides a pumping speed control method, a pumping speed control device, a pumping system and engineering machinery. The pumping system comprises a delivery oil cylinder, a main oil pump and an engine, and the pumping speed control method comprises the following steps: s10, determining the starting acceleration of the delivery oil cylinder uniquely corresponding to the pumping speed stage according to the pumping speed stage where the target pumping speed is located; s20, determining the stable pumping speed of the delivery oil cylinder according to the starting acceleration and the target pumping speed; s30, determining the engine speed according to the pumping speed stage; s40, controlling the displacement current slope value of the main oil pump according to the starting acceleration and the engine speed; and S50, controlling the displacement current stable value of the main oil pump according to the stable pumping speed and the engine speed, so that the actual pumping speed of the delivery oil cylinder reaches the stable pumping speed according to the starting acceleration. The pumping speed control method can solve the problems of complicated pumping control procedure and low reliability in the prior art.
Description
Technical field
The present invention relates to pumping system control field, in particular to a kind of rate of pumping control method, control dress
Put, pumping system and engineering machinery.
Background technology
At present, most of concrete pumping machinery is pumped using double concrete cylinders, and rate of pumping control strategy is straight
Connecing affects the vibration performance of car load, energy-saving effect and suction coagulation soil characteristics, closely bound up with the efficiency of whole equipment, directly
The comfortableness for affecting client to use and economy.Therefore, rate of pumping control strategy is always the weight of concern needed for pumping field
Point.
At present, the strategy of speed control of delivering concrete mainly has following two schemes：
Scheme one：Adjust hydraulic system of pump main oil pump stable discharge capacity electric current maximum come realize main oil pump output stream
The change of amount, so as to change rate of pumping, as shown in figure 1, wherein a adjusts rank for the speed oil cylinder pace of the program one
Section, b are that commutation buffer stage, c are return speed for oil cylinder and adjust the stage；
Scheme two：In the corresponding pumping starting loop of each pumping gear Automatic-searching, stabilized speed is accelerated to
Constant motion afterwards, as shown in Fig. 2 wherein a adjusts the stage for the speed oil cylinder pace of the program two, b is commutation buffering rank
Section, c are return speed for oil cylinder and adjust the stage.
One speed control method of scheme is excessively single, and in pumping state handoff procedure, compression shock is larger, causes equipment
Vibration larger, easily there is fatigue rupture.The control strategy of scheme two can realize stepless speed regulation, but start in pumping every time
Front several cycles afterwards are required to find starting loop, and program is cumbersome, and reliability is not high, less stable.
Content of the invention
The present invention is intended to provide a kind of rate of pumping control method, control device, pumping system and engineering machinery, to solve
In prior art, pumping control program is loaded down with trivial details, the not high problem of reliability.
A first aspect of the present invention, there is provided a kind of rate of pumping control method of pumping system, pumping system includes defeated
Send oil cylinder, for drive carriage cylinder operation main oil pump and for drive main oil pump run electromotor, rate of pumping control
Method comprises the steps：S10, the rate of pumping stage according to residing for target rate of pumping are determined with the rate of pumping stage only
The starting loop of one corresponding carriage cylinder；S20, determines the steady of carriage cylinder according to starting loop and target rate of pumping
Determine rate of pumping；S30, determines engine speed according to the rate of pumping stage；S40, according to starting loop and engine speed
The discharge capacity current slope value of control main oil pump；S50, according to the discharge capacity electricity for stablizing rate of pumping and control of engine speed main oil pump
Stream stationary value, so that the rate of pumping of the reality of carriage cylinder reaches stable rate of pumping according to starting loop.
Further, each rate of pumping stage corresponding engine speed is good with load matched according to electromotor, i.e.,
The principle worked in the economic zone of electromotor determines.
Further, engine speed is the optimum speed under conditions of the economic zone work of electromotor.
Further, each rate of pumping stage corresponding starting loop is according to suction characteristics are good, concrete pipe full packages rate high
Principle determine.
Further, each rate of pumping stage corresponding starting loop is that conveying side measures most under the rate of pumping stage
Pumping acceleration when many.
Further, the rate of pumping stage is divided according to the principle from 0 to 100% mean allocation.
Further, the division number in rate of pumping stage is identical with the number of gear of pumping system and corresponds.
Further, when target rate of pumping changes, judge new pumping speed corresponding with fresh target rate of pumping
Whether identical, if new rate of pumping stage and former pumping if spending the former rate of pumping stage corresponding with former target rate of pumping in stage
Speed stage is identical, keeps engine speed constant and discharge capacity current slope value that is keeping main oil pump is constant, change main oil pump
Discharge capacity current stabilization value.
Further, when target rate of pumping changes, judge new pumping speed corresponding with fresh target rate of pumping
Whether identical, if new rate of pumping stage and former pumping if spending the former rate of pumping stage corresponding with former target rate of pumping in stage
Speed stage is different, repeats step S10 to step S50 according to the new rate of pumping stage.
Further, also include before step S10：S0, sets up data base, including determining target rate of pumping and each pumping
The corresponding relation of speed stage, and determine and one-to-one starting loop of each rate of pumping stage.
Further, step S0 also includes：Determine and one-to-one engine speed of each rate of pumping stage；And/or,
Determine the discharge capacity current slope value with the one-to-one main oil pump of each starting loop；And/or, determine and each rate of pumping stage
The regulation of the discharge capacity current stabilization value of corresponding main oil pump is interval.
Second aspect present invention provides a kind of rate of pumping control device of pumping system, and pumping system includes conveying oil
Cylinder, for drive carriage cylinder operation main oil pump and for drive main oil pump run electromotor, rate of pumping control device
Including：Starting loop setting module, determined and the pumping speed for the rate of pumping stage according to residing for target rate of pumping
Spend the starting loop of stage unique corresponding carriage cylinder；Stable rate of pumping determining module, for according to starting loop
The stable rate of pumping of carriage cylinder is determined with target rate of pumping；Control of engine speed module, for according to rate of pumping
Stage determines engine speed；Discharge capacity current slope determining module, for determining master according to starting loop and engine speed
The discharge capacity current slope value of oil pump, so that the pumping acceleration of the reality of carriage cylinder reaches starting loop；And, discharge capacity electricity
Stream stationary value adjustment module, stablizes the discharge capacity current stabilization value that rate of pumping and engine speed adjust main oil pump for basis,
So that the rate of pumping of the reality of carriage cylinder reaches stable rate of pumping.
Further, control of engine speed module is good with load matched according to electromotor, i.e., in the economy of electromotor
The principle of regional work controls each described rate of pumping stage corresponding engine speed.
Further, rate of pumping control device also includes database storage module, the number of database storage module storage
According to the corresponding relation that storehouse includes target rate of pumping and each rate of pumping stage and one-to-one with each rate of pumping stage
Starting loop.
Further, data base also includes：With one-to-one engine speed of each rate of pumping stage；And/or, and each
The discharge capacity current slope value of the one-to-one main oil pump of starting loop；And/or, conveying oil corresponding with each rate of pumping stage
The regulation of the discharge capacity current stabilization value of cylinder is interval.
Further, rate of pumping control device also includes that gear adjustment module, gear adjustment module are pumped according to target
Speed adjusts the gear of pumping system.Third aspect present invention provides a kind of pumping system, and the pumping system includes conveying oil
Cylinder, for driving the main oil pump and electromotor for driving the main oil pump operation of carriage cylinder operation, pumping system
Also include the rate of pumping control device of any one of second aspect present invention, rate of pumping control device and electromotor and main oil
Pump is electrically connected.
Fourth aspect present invention provides a kind of engineering machinery, and including pumping system, pumping system is third aspect present invention
Pumping system.
Application technical scheme, rate of pumping control method include：Pumping according to residing for target rate of pumping
Speed stage determines the starting loop with the rate of pumping stage unique corresponding carriage cylinder；According to starting loop and mesh
Mark rate of pumping determines the stable rate of pumping of carriage cylinder；Engine speed and main oil pump are determined according to the rate of pumping stage
Discharge capacity current slope value and discharge capacity current stabilization value.When being pumped, due to pump according to residing for target rate of pumping
Send speed stage to determine appropriate starting loop, directly can start pumping with the starting loop, it is to avoid in pump
The complicated procedures of starting loop are found when sending startup.The determination of the starting loop can start according to preferably ensureing to pump
When the principle of reliability and stability determine, rushed with avoiding occurring pressure in pumping procedure by the selected starting loop
Larger problem is hit, equipment when pumping state switches that reduces bears the number of times of fatigue stress, the service life of extension device.This
Outward, after starting loop is determined, you can to determine stable rate of pumping according to starting loop and target rate of pumping, and select
Take suitable engine speed so that electromotor can saving fuel oil, can improve the suction characteristics of pumping mechanism again, realize using
Less fuel oil conveys more concrete.On the basis of above-mentioned condition meets, according to the starting loop, stable pumping speed
Degree and engine speed are assured that the discharge capacity current slope value and stationary value of main oil pump, so that pumping system is realized reaching
Arrive target rate of pumping.
Description of the drawings
The accompanying drawing for constituting the part of the present invention is used for providing a further understanding of the present invention, the schematic reality of the present invention
Apply example and its illustrate, for explaining the present invention, not constituting inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 shows the speed controlling figure of scheme of the prior art；
Fig. 2 shows the speed controlling figure of scheme of the prior art two；
Fig. 3 shows the rate of pumping control method flow chart according to the present invention；
Fig. 4 shows that rate of pumping control method does not change in target rate of pumping according to an embodiment of the invention
Flow chart during Shi Jinhang speed controlling；
Fig. 5 shows that rate of pumping control method is when target rate of pumping changes according to an embodiment of the invention
Carry out flow chart during speed controlling.
Specific embodiment
Below with reference to accompanying drawing and in conjunction with the embodiments describing the present invention in detail.It should be noted that not conflicting
In the case of, the feature in embodiment and embodiment in the application can be mutually combined.
Target rate of pumping in the application refers to that the average rate of pumping in the pump cycles, pumping stabilized speed are
Refer to stabilized speed when being at the uniform velocity pumping state.In general, pumping stabilized speed is higher than average rate of pumping.
As shown in figure 3, according to embodiments of the present invention, pumping system includes carriage cylinder, for driving carriage cylinder to run
Main oil pump and for drive main oil pump run electromotor.Rate of pumping control method comprises the steps：S10, according to mesh
The rate of pumping stage residing for mark rate of pumping determines the Acceleration of starting with the rate of pumping stage unique corresponding carriage cylinder
Degree；S20, according to the stable rate of pumping that starting loop and target rate of pumping determine carriage cylinder；S30, according to pumping speed
The stage of spending determines engine speed；S40, according to the discharge capacity current slope of starting loop and control of engine speed main oil pump
Value；S50, according to the discharge capacity current stabilization value for stablizing rate of pumping and control of engine speed main oil pump, so that carriage cylinder
Actual rate of pumping reaches stable rate of pumping according to starting loop.The present embodiment is said by taking delivering concrete as an example
Bright.
When being pumped, as the rate of pumping stage according to residing for target rate of pumping determines appropriate opening
Dynamic acceleration, directly can start pumping with the starting loop, it is to avoid find starting loop when pumping starts
Complicated procedures.The determination of the starting loop can be according to the principle for preferably ensureing to pump reliability and stability when starting
Determine, the occurring larger problem of compression shock in pumping procedure is avoided by the selected starting loop, reduce pumping shape
When state switches, equipment bears the number of times of fatigue stress, the service life of extension device.Additionally, after starting loop is determined, i.e.,
Stable rate of pumping can be determined according to starting loop and target rate of pumping, and choose suitable engine speed so that
Electromotor can saving fuel oil, can improve the suction characteristics of pumping mechanism again, realize conveying more mixing with less fuel oil
Solidifying soil.On the basis of above-mentioned condition meets, just can be true according to the starting loop, stable rate of pumping and engine speed
Determine the discharge capacity current slope value and stationary value of main oil pump, so that pumping system is realized reaching target rate of pumping.Therefore lead to
The rate of pumping control method for crossing the application effectively can reduce pumping the complicated procedures in start-up course, improve rate of pumping control
The reliability and stability of system, reduce the impact in pumping procedure, improve pumping efficiency.
There is the Acceleration of starting of larger pumping side's amount as concrete pumping under different target rate of pumpings, can be made
Degree, engine speed and discharge capacity current slope value also can be accordingly different, in order to reduce this change to concrete in pumping procedure
The impact brought by the determination of numerical value, and cause concrete pumping under corresponding target rate of pumping that there is larger pump as far as possible
Target rate of pumping is divided into multiple rate of pumping stages by the side's of sending amount, makes the corresponding determination of each rate of pumping stage
Starting loop.Each rate of pumping stage corresponding starting loop is according to the requirement that suction characteristics are good, concrete pipe full packages rate is high
Determine.It is highly preferred that each rate of pumping stage corresponding starting loop is that conveying side's amount is most under the rate of pumping stage
When pumping acceleration.
Division in order to cause the rate of pumping stage is more accurate to the control of rate of pumping, each rate of pumping stage
Interval should be as little as possible, the number in rate of pumping stage should be as more as possible, and for simplify control process, rate of pumping
The number in stage needs to control in a rational scope again.For simplification point mode, it is preferable that the rate of pumping stage presses
Divide according to the principle from 0 to 100% mean allocation.In conjunction with the classification of current concrete pumping machinery delivering concrete speed, more
Preferably, the division number in rate of pumping stage is identical with the number of gear of pumping system and corresponds.
The rate of pumping stage is divided according to the principle from 0 to 100% mean allocation and rate of pumping in the present embodiment
Stage divides that number is identical with the number of gear of pumping system and correspond, and wherein, pumping system is with 10 gears.I.e.
Rate of pumping is divided into 0 to 10 gear or 0 to 100% grade.Certainly, the present invention is not precluded from according to actual needs, selecting other
Speed dividing mode or the division number in rate of pumping stage.
In the present embodiment, when engine speed is determined, it then follows electromotor is good with load matched, i.e., in the warp of electromotor
The principle of Ji regional work so that electromotor can meet load request, while pumping work being completed well, can be with
There is relatively low fuel consumption.In order that electromotor reaches minimum, Ke Yi in satisfaction with the observable index on the basis of load matched
The optimum speed under conditions of the economic zone work of electromotor is selected in the range of being somebody's turn to do as engine speed.Due to now sending out
Motivation in optimum speed state, therefore can ensure that the situation in identical starting loop in the case of fuel consumption is less
Under, pumping side's amount of concrete is larger, and the therefore selection is an engine speed with higher pumping side amount, to improve pump
Send efficiency.
Due to ai=f (ri,ki), wherein aiFor starting loop, riFor engine speed, kiDischarge capacity electric current for main oil pump
Slope value, therefore determine engine speed after, can according to engine speed, starting loop and discharge capacity current slope value it
Between relation, it may be determined that the discharge capacity current slope value of corresponding main oil pump, relation a between above-mentioned parameteri=f (ri,ki)
Can be obtained by test, be rule-of-thumb relation, for different product categories, parameter is it can also happen that corresponding change.
In order to easily facilitate the discharge capacity current slope value for determining engine speed corresponding with starting loop and main oil pump
With discharge capacity current stabilization value etc., the selection efficiency of parameters is improved, so as to improve pumping starting efficiency, and ensures coagulation
Soil can quickly reach larger pumping side's amount in pumping procedure, also include before the starting loop of carriage cylinder is set
The step of pre-building data base S0 (not shown)s.Step S0 includes determining target rate of pumping and each rate of pumping rank
The corresponding relation of section, and determine and one-to-one starting loop of each rate of pumping stage.Preferably step S0 also includes
Determine and one-to-one engine speed of each rate of pumping stage；And/or, determine and led with each starting loop correspondingly
The discharge capacity current slope value of oil pump；And/or, determine the discharge capacity current stabilization value of main oil pump corresponding with each rate of pumping stage
Adjust interval.
Certainly, the present embodiment is not used in the restriction present invention.For example, in another embodiment, step S0 can not be bag
The step of including determination engine speed one-to-one with each rate of pumping stage, but including determining and each rate of pumping stage
The regulation of corresponding engine speed is interval.Again for example, In yet another embodiment, step S0 can not be including determine with each
The discharge capacity current slope value of the one-to-one main oil pump of starting loop, but including determining and each starting loop and corresponding
The regulation of the discharge capacity current slope value of main oil pump is interval.
In the present embodiment, as shown in table 1, after target rate of pumping d is determined, due to rate of pumping stage and gear
Have corresponding relation, therefore, rate of pumping stage and gear just determine therewith, so as to corresponding rate of pumping stage and gear
Uniquely corresponding starting loop is determined, oblique such that it is able to the corresponding discharge capacity electric current for choosing engine speed and main oil pump
Rate value.Due under the starting loop choose corresponding engine speed and main oil pump discharge capacity current slope value be can
So that larger numerical value is measured by the pumping side of concrete, therefore can save and go to calculate corresponding electromotor according to starting loop
Rotating speed and the time of discharge capacity current slope value, and the resource needed for calculating can be saved, reduce the consuming of the energy, improve pumping
Efficiency.
Table 1：Target rate of pumping, engine speed, the mapping table of discharge capacity electric current
As shown in figure 4, wherein, after control device receives target pumping rotating speed, i.e., rotating speed is pumped according to target and determines pump
The rotating speed stage is sent, and then determines starting loop, then determine stable rate of pumping, determine that electromotor turns according to the rate of pumping stage
Fast ri, according to starting loop and engine speed riDetermine discharge capacity current slope value ki, and according to stablize rate of pumping and send out
Motivation rotating speed riDetermine discharge capacity current value stationary value mix, carriage cylinder is made according to starting loop and stablize rate of pumping operating,
The rate of pumping for needing is obtained so as to reach.
As shown in figure 5, in this control method, when target rate of pumping changes, judging and fresh target rate of pumping
Whether the former rate of pumping stage corresponding with former target rate of pumping in corresponding new rate of pumping stage is identical.If new pumping speed
It is identical with the former rate of pumping stage to spend the stage, i.e., for target rate of pumping some stage i (i=1,2,3 ..., 10) in become
During change, starting loop a is pumpediKeep constant, i.e. engine speed riWith discharge capacity current slope value kiKeep constant, only need
Change discharge capacity current value stationary value m of main oil pumpix, you can realize the change of rate of pumping, i.e. d=f (mix).The setting is avoided
Discharge capacity current slope value k of new main oil pump found by controlleri, therefore control logic is simple, within the different time periods, only needs
Discharge capacity current value stationary value m of main oil pump to be adjustedix, it is possible to it is conveniently adjusted stable rate of pumping so as to pump with target
The adjustment of speed and adjust, adjustment quick and precisely, can simplify adjustment programme, improve pumping efficiency.
As shown in figure 5, in this control method, when target rate of pumping changes, judging and fresh target rate of pumping
Whether the former rate of pumping stage corresponding with former target rate of pumping in corresponding new rate of pumping stage is identical, if new pumping speed
It is different from the former rate of pumping stage to spend the stage, such as：Rate of pumping by the rate of pumping stage 1 be adjusted to the rate of pumping stage 2 or by
When the rate of pumping stage 6 is adjusted to the rate of pumping stage 5, step S10 is repeated to step S50 according to fresh target rate of pumping,
New starting loop is determined according to the new rate of pumping stage, and is determined according to new starting loop and fresh target pumping rotating speed new
Stable rate of pumping, according to new rate of pumping phasic change engine speed and then changes the discharge capacity current slope value of main oil pump
Discharge capacity current stabilization value with main oil pump.Due to rate of pumping and starting loop aiWith stablize rate of pumping viCorrelation, i.e. d=f
(ai,vi)=f (ri,ki,mix), control device selects corresponding engine speed r according to the control strategy of table 1i, main oil pump row
Amount current slope value kiWith discharge capacity current stabilization value mix.Within the different time periods, using different starting loops, obtain
Discharge capacity current slope value kiAlso accordingly change.
Detecting after target rate of pumping adjusted from the former rate of pumping stage to another new rate of pumping stage, control
Device determines the parameter such as new starting loop and engine speed, discharge capacity current slope value according to the new rate of pumping stage, and ties
Target rate of pumping before being fated redefines discharge capacity current stabilization value, as the target rate of pumping in the rate of pumping stage is
One value range, therefore discharge capacity current stabilization value is also a value range accordingly, i.e. mi0≤mix≤min.Starting loop,
After engine speed and discharge capacity current slope value determine, it is possible to which the control method using the single rate of pumping stage is making pump
Send stabilized speed consistent with target rate of pumping.
By above-mentioned control method, can be flexible according to the change of target rate of pumping and the change in rate of pumping stage
Adjustment that is convenient and rapidly realizing pumping stabilized speed so that pumping system can be always ensured that the concrete square amount of output
More, and the fuel oil for expending is less, it is ensured that while the economy of pumping system, improve the pumping efficiency of pumping system.
Embodiment of the present invention rate of pumping control device is used for being controlled the rate of pumping of pumping system.Pumping system
Including carriage cylinder, for driving the main oil pump and electromotor for driving main oil pump to run of carriage cylinder operation.Pumping speed
Degree control device includes：Starting loop setting module, determined for the rate of pumping stage according to residing for target rate of pumping
Starting loop with the rate of pumping stage unique corresponding carriage cylinder；Stable rate of pumping determining module, for basis
Starting loop and target rate of pumping determine the stable rate of pumping of carriage cylinder；Control of engine speed module, for root
Engine speed is determined according to the rate of pumping stage；Discharge capacity current slope determining module, for according to starting loop and electromotor
Rotating speed determines the discharge capacity current slope value of main oil pump, so that the pumping acceleration of the reality of carriage cylinder reaches starting loop；
And discharge capacity current stabilization value adjustment module, for according to the discharge capacity electricity for stablizing rate of pumping and engine speed regulation main oil pump
Stream stationary value, so that the rate of pumping of the reality of carriage cylinder reaches stable rate of pumping.
Wherein preferably, control of engine speed module is good with load matched according to electromotor, i.e., in the warp of electromotor
The principle of Ji regional work controls each rate of pumping stage corresponding engine speed.It is preferably carried out in mode at one,
Can be by determination engine speed corresponding with the rate of pumping stage of tabling look-up.
Preferably, rate of pumping control device also includes database storage module, the data of database storage module storage
Storehouse includes the corresponding relation of target rate of pumping and each rate of pumping stage, starts with each rate of pumping stage correspondingly and adds
Speed.Additionally preferably, data base also includes and one-to-one engine speed of each rate of pumping stage；And/or, and respectively open
The discharge capacity current slope value of the one-to-one main oil pump of dynamic acceleration；And/or, carriage cylinder corresponding with each rate of pumping stage
Discharge capacity current stabilization value regulation interval.
Additionally preferably, rate of pumping control device also includes gear adjustment module, and gear adjustment module is according to target pump
Speed is sent to adjust the gear of pumping system.
The pumping system of the embodiment of the present invention includes carriage cylinder, for driving the main oil pump of carriage cylinder operation and being used for
The electromotor of main oil pump operation is driven, wherein, pumping system also includes that above-mentioned rate of pumping control device, rate of pumping are controlled
Device is electrically connected with electromotor and main oil pump.
The engineering machinery of the embodiment of the present invention includes pumping system, and the pumping system is above-mentioned pumping system.
As can be seen from the above description, the above embodiments of the present invention achieve following technique effect：
1. the rate of pumping control method of the application can either saving fuel oil, the suction that can improve concrete pump again is special
Property, and then conveying side's amount of raising concrete pump, realize most concrete being conveyed with minimum fuel oil, improve pumping efficiency.
2. the rate of pumping control method both achieves pumping no pressure impact, adjustment time when turn avoid startup pumping
Long problem.
3. the compression shock when rate of pumping control method can reduce pumping in a large number, had both reduced concrete pump truck tail-end
Big problem shaken by flexible pipe, reduces the number of times that equipment bears fatigue stress again, improves the service life of equipment.
The preferred embodiments of the present invention are the foregoing is only, the present invention is not limited to, for the skill of this area
For art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (18)
1. the rate of pumping control method of a kind of pumping system, it is characterised in that the pumping system includes carriage cylinder, is used for
Drive the main oil pump and the electromotor for driving the main oil pump operation of the carriage cylinder operation, the rate of pumping control
Method comprises the steps：
S10, the rate of pumping stage according to residing for target rate of pumping determine uniquely corresponding described with the rate of pumping stage
The starting loop of carriage cylinder；
S20, according to the stable rate of pumping that the starting loop and the target rate of pumping determine the carriage cylinder；
S30, determines the engine speed according to the rate of pumping stage；
S40, according to the starting loop and main oil pump described in the control of engine speed discharge capacity current slope value；
S50, according to the stable rate of pumping and the discharge capacity current stabilization value of main oil pump described in the control of engine speed, with
The rate of pumping of the reality of the carriage cylinder is made to reach the stable rate of pumping according to the starting loop.
2. rate of pumping control method according to claim 1, it is characterised in that each described rate of pumping stage is corresponding
The engine speed good with load matched according to electromotor, i.e., electromotor economic zone work principle determine.
3. rate of pumping control method according to claim 2, it is characterised in that the engine speed is in electromotor
Economic zone work under conditions of optimum speed.
4. rate of pumping control method according to claim 1, it is characterised in that each described rate of pumping stage is corresponding
The starting loop determine according to suction characteristics are good, concrete pipe full packages rate is high principle.
5. rate of pumping control method according to claim 4, it is characterised in that each described rate of pumping stage is corresponding
The starting loop be under the rate of pumping stage conveying side amount most when pumping acceleration.
6. rate of pumping control method according to claim 1, it is characterised in that the rate of pumping stage is according to from 0
Principle to 100% mean allocation is divided.
7. rate of pumping control method according to claim 1, it is characterised in that the division number in the rate of pumping stage
Mesh is identical with the number of gear of the pumping system and corresponds.
8. rate of pumping control method according to claim 1, it is characterised in that when target rate of pumping changes
When, judge former rate of pumping rank corresponding with former target rate of pumping of new rate of pumping stage corresponding with fresh target rate of pumping
Whether section is identical, if the new rate of pumping stage is identical with the former rate of pumping stage, keeps the engine speed constant and protects
The discharge capacity current slope value for holding the main oil pump is constant, changes the discharge capacity current stabilization value of the main oil pump.
9. rate of pumping control method according to claim 1, it is characterised in that when target rate of pumping changes
When, judge former rate of pumping rank corresponding with former target rate of pumping of new rate of pumping stage corresponding with fresh target rate of pumping
Whether section is identical, if the new rate of pumping stage is different from the former rate of pumping stage, is repeated according to the new rate of pumping stage
Step S10 is executed to step S50.
10. rate of pumping control method according to claim 1, it is characterised in that also include before step S10：
S0, sets up data base, including determining the corresponding relation of the target rate of pumping and each rate of pumping stage, and
Determine and the starting loop correspondingly of each rate of pumping stage.
11. rate of pumping control methods according to claim 10, it is characterised in that step S0 also includes：
Determine and the engine speed correspondingly of each rate of pumping stage；And/or,
Determine the discharge capacity current slope value with each starting loop main oil pump correspondingly；And/or,
Determine that the regulation of the discharge capacity current stabilization value of the main oil pump corresponding with each rate of pumping stage is interval.
A kind of rate of pumping control device of 12. pumping systems, the pumping system include carriage cylinder, described defeated for driving
Send the main oil pump and the electromotor for driving the main oil pump operation of oil cylinder operation, it is characterised in that the rate of pumping control
Device processed includes：
Starting loop setting module, determined and the rate of pumping for the rate of pumping stage according to residing for target rate of pumping
The starting loop of the stage unique corresponding carriage cylinder；
Stable rate of pumping determining module, for determining the conveying according to the starting loop and the target rate of pumping
The stable rate of pumping of oil cylinder；
Control of engine speed module, for determining the engine speed according to the rate of pumping stage；
Discharge capacity current slope determining module, for determining the main oil pump according to the starting loop and the engine speed
Discharge capacity current slope value so that the pumping acceleration of the reality of the carriage cylinder reaches the starting loop；And,
Discharge capacity current stabilization value adjustment module, for adjusting the master according to the stable rate of pumping and the engine speed
The discharge capacity current stabilization value of oil pump, so that the rate of pumping of the reality of the carriage cylinder reaches the stable rate of pumping.
13. rate of pumping control devices according to claim 12, it is characterised in that the control of engine speed module
Good with load matched according to electromotor, i.e., the principle for working in the economic zone of electromotor controls each described rate of pumping rank
The corresponding engine speed of section.
14. rate of pumping control devices according to claim 12, it is characterised in that the rate of pumping control device is also
Including database storage module, the data base of the database storage module storage includes that the target rate of pumping is described with each
The corresponding relation in rate of pumping stage, and with the starting loop correspondingly of each rate of pumping stage.
15. rate of pumping control devices according to claim 14, it is characterised in that the data base also includes：
With the engine speed correspondingly of each rate of pumping stage；And/or,
Discharge capacity current slope value with each starting loop main oil pump correspondingly；And/or,
The regulation of the discharge capacity current stabilization value of the carriage cylinder corresponding with each rate of pumping stage is interval.
16. rate of pumping control devices according to claim 12, it is characterised in that the rate of pumping control device is also
Including gear adjustment module, the gear adjustment module adjusts the gear of the pumping system according to the target rate of pumping.
A kind of 17. pumping systems, the pumping system include carriage cylinder, for driving the main oil pump of the carriage cylinder operation
With the electromotor for driving the main oil pump to run, it is characterised in that the pumping system also includes claim 12 to 16
Any one of rate of pumping control device, the rate of pumping control device and the electromotor and main oil pump electricity
Connection.
A kind of 18. engineering machinery, including pumping system, it is characterised in that the pumping system is the pump described in claim 17
Send system.
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| CN112832528B (en) * | 2020-08-12 | 2022-04-26 | 中联重科股份有限公司 | Pumping control method and device, material distribution method and device and material distribution equipment |
| CN114562453B (en) * | 2022-02-09 | 2024-01-30 | 三一汽车制造有限公司 | Engineering vehicle and pumping operation control method and device thereof |
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|---|---|---|---|---|
| CN1916429A (en) * | 2005-08-11 | 2007-02-21 | 神钢建设机械株式会社 | Control device for hydraulic cylinder and operating machine including control device |
| CN102410268A (en) * | 2011-10-20 | 2012-04-11 | 中联重科股份有限公司 | Method and device for controlling hydraulic oil cylinder, pumping system and concrete pumping equipment |
| CN103557149A (en) * | 2013-10-29 | 2014-02-05 | 中联重科股份有限公司 | Control equipment, method and system of concrete piston and engineering machinery |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1182312A (en) * | 1997-09-12 | 1999-03-26 | Furukawa Co Ltd | Hydraulically driven piston pump |
| JP2002276611A (en) * | 2001-03-19 | 2002-09-25 | Amada Eng Center Co Ltd | Hydraulic operation system, sheet metal working machine and industrial machine |
| WO2014087978A1 (en) * | 2012-12-03 | 2014-06-12 | 日立建機株式会社 | Work machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1916429A (en) * | 2005-08-11 | 2007-02-21 | 神钢建设机械株式会社 | Control device for hydraulic cylinder and operating machine including control device |
| CN102410268A (en) * | 2011-10-20 | 2012-04-11 | 中联重科股份有限公司 | Method and device for controlling hydraulic oil cylinder, pumping system and concrete pumping equipment |
| CN103557149A (en) * | 2013-10-29 | 2014-02-05 | 中联重科股份有限公司 | Control equipment, method and system of concrete piston and engineering machinery |
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