CN104196692B - Pumping equipment, pumping system and reversing control device and method of pumping system - Google Patents
Pumping equipment, pumping system and reversing control device and method of pumping system Download PDFInfo
- Publication number
- CN104196692B CN104196692B CN201410334886.3A CN201410334886A CN104196692B CN 104196692 B CN104196692 B CN 104196692B CN 201410334886 A CN201410334886 A CN 201410334886A CN 104196692 B CN104196692 B CN 104196692B
- Authority
- CN
- China
- Prior art keywords
- master cylinder
- pumping system
- piston
- time delay
- sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The invention discloses a reversing control device and method for a pumping system. According to the invention, the current reversing condition of the pumping system is detected in real time and delay time of next reversing can be adjusted in real time based on the current reversing condition, so that effective utilization of the strokes of a first main oil cylinder and the stroke of a second main oil cylinder of the pumping system is guaranteed, and therefore the working efficiency of the pumping system is improved. In addition, by the adoption of the reversing control system, pumping system adjusting requirements can be effectively reduced and the manufacturing efficiency of the pumping system is improved. On this basis, the invention further discloses the pumping system and pumping equipment provided with the reversing control device.
Description
Technical field
The present invention relates to material pumping technology and in particular to a kind of pumping equipment, pumping system and its control device for reversing,
Method.
Background technology
Pumping equipment (such as pump truck, drag pump, Vehicle loaded pump, fire fighting truck etc.) be a kind of will fluid (or slurry) material pressurize after defeated
Deliver to the machinery in precalculated position, it has the advantages that working performance height, conveniently moving, is widely used to engineering construction
In.
Pumping equipment is usually provided with pumping system, mobile platform and three parts of power set, pumping system and power
Device is arranged on a mobile platform.As depicted in figs. 1 and 2, generally, pumping system is provided with 1, two conveying cylinders of two master cylinders
2nd, two concrete pistons 5, hopper 3 and distributing valve 4, the piston rod of master cylinder 1 is connected with concrete piston 5, and concrete piston 5 is mounted slidably
In conveying cylinder 2, master cylinder 1 is driven by the hydraulic system on pumping equipment；The operation process of pumping system is: in master cylinder 1
Ordering about under, concrete piston 5 moves back and forth in conveying cylinder 2, when concrete piston 5 moves toward the direction away from hopper 3, conveying cylinder 2
Suck material in hopper 3, when concrete piston 5 is toward during near the motion of the direction of hopper 3, convey the material the allocated valve pump in cylinder 2
Go out.
In pumping procedure, it usually needs accurately control the commutation of master cylinder 1；If too early commutate, master cylinder 1 stroke mistake
Short, do not make full use of the stroke of master cylinder 1, lead to the discharge capacity of pumping system to reduce, be unfavorable for improving work efficiency, and complete
The pumping of the material of same volume needs more commutation, leads to pumping system service life reduction；If commutated too late, master cylinder
1 occurs and hits cylinder phenomenon (i.e. piston slap cylinder barrel), causes mechanical loss and hydraulic shock, also can reduce the use of pumping system
Life-span.In order to accurately control the master cylinder 1 to commutate it is thus proposed that a kind of mode, as shown in Fig. 2 the rodless cavity of two master cylinders 1
Connection, hydraulic oil passes in and out from rod chamber, setting travel switch 6 (or other class on the precalculated position of close the end cap of rod chamber
The position sensor of type), when piston runs to this precalculated position, travel switch 6 is to the controller feedback inspection on pumping equipment
Survey signal, after controller receives detection signal, control master cylinder to commutate after predetermined time delay；Here postpone predetermined
Master cylinder is controlled time delay to commutate, primarily to ensureing that master cylinder runs to put (i.e. piston just runs to extreme position) in place
Commutate again afterwards；However, master cylinder or other Hydraulic Elements are inevitably present leakage, lead to the fortune of the piston of master cylinder 1
Scanning frequency degree cannot accurately anticipation；In this case, " time delay " is specifically set as how much not having clear and definite foundation, Zhi Nengtong
Cross after veteran engineer is repeatedly attempted according to personal view and set；Above-mentioned this by manually repeatedly debugging
To set the operator scheme of " time delay " in practice process, easily deviation to occur it is difficult to ensure that the pumping produced in batches sets
Get everything ready standby equal high-quality, and veteran engineer's limited amount is it is difficult to improve production efficiency and scale.
Content of the invention
In view of this, the present invention proposes a kind of control device for reversing for pumping system, method, using this commutation control
Device or method in real time, automatically can adjust " time delay " commutated according to the present case of pumping system, and then make
Pumping system reaches optimal job state.On this basis, the present invention also proposes a kind of pumping system and pumping equipment.
As a first aspect of the present invention, the present invention proposes a kind of control device for reversing for pumping system, described
Pumping system is provided with the first master cylinder, the second master cylinder, the first conveying cylinder, the second conveying cylinder and hydraulic drive unit, and first
Master cylinder and the series connection of the second master cylinder, it is the first master cylinder that described hydraulic drive unit is used for and the second master cylinder provides power；
Described control device for reversing is provided with primary importance sensor, the 4th position sensor, pressure transducer and control unit；When
When the piston of one master cylinder runs to the first precalculated position, described primary importance sensor is to control unit feedback primary importance inspection
Survey signal, when the piston of the second master cylinder runs to the second extreme position, described 4th position sensor is anti-to control unit
Present the second limit signal；Described pressure transducer is used for detecting in hydraulic drive unit, the first master cylinder or the second master cylinder
Pressure, described control unit controls described pumping system in t time delay when receiving primary importance detection signalsAfter change
To described control unit is according to t time delay described in feedback adjustment of the 4th position sensor and pressure transducersSize.
In preferred technical scheme, described control device for reversing is additionally provided with second position sensor and the 3rd position passes
Sensor；When the piston of the first master cylinder runs to the first extreme position, described second position sensor feeds back to control unit
First limit signal；When the piston of the second master cylinder runs to the second precalculated position, described 3rd position sensor is to control
Unit feeds back second position detection signal；Described control unit controls described pumping system when receiving second position detection signal
System is in t time delaysAfter commutate, described control unit is according to the feedback adjustment of second position sensor and pressure transducer
Time delay tsSize.
In preferred technical scheme, if in commutation process, described control unit does not receive the second limit signal
Or first limit signal, described control unit increases t described time delays；If in commutation process, described control unit connects
Receive the second limit signal or the first limit signal, and the pressure that pressure transducer described in commutation process detects increases suddenly
Greatly, described control unit reduction t described time delays.
In preferred technical scheme, described primary importance sensor is arranged on the first master cylinder near its rod chamber side
And the extreme position from rod chamber has preset distance；Described second position sensor is arranged on the first master cylinder and is located at it no
On the extreme position of rod cavity side；Described 3rd position sensor is arranged on the second master cylinder near its rod chamber side and from having
The extreme position of rod cavity has preset distance；Described 4th position sensor is arranged on the second master cylinder and is located at its rodless cavity one
On the extreme position of side.
In preferred technical scheme, described primary importance sensor is arranged on the first master cylinder near its rodless cavity side
And the extreme position from rodless cavity has preset distance；Described second position sensor is arranged on the first master cylinder and has positioned at it
On the extreme position of rod cavity side；Described 3rd position sensor is arranged on the second master cylinder near its rodless cavity side and from no
The extreme position of rod cavity has preset distance；Described 4th position sensor is arranged on the second master cylinder and is located at its rod chamber one
On the extreme position of side.
In preferred technical scheme, described time delay tsIt is adjusted according in the following manner:
During increase: ts(n+1)=(1+k1)ts(n)；During reduction: ts(n+1)=(1-k2)ts(n)；Wherein, k1For increase coefficient, k2
For degradation factor.
In preferred technical scheme, described primary importance sensor, second position sensor, the 3rd position sensor and
4th position sensor is travel switch.
In preferred technical scheme, described control device for reversing is additionally provided with the 3rd position sensor, when the second main oil
When the piston of cylinder (10) runs to the second precalculated position, described 3rd position sensor is to control unit feedback second position detection
Signal, described control unit controls described pumping system in t time delay when receiving second position detection signalsAfter change
To；Or,
Described control device for reversing is additionally provided with the 5th position sensor, when the piston of the first master cylinder runs to the 3rd pre-
When positioning is put, described 5th position sensor feeds back the 3rd position detection signal to control unit, and described control unit is receiving
Control described pumping system in t time delay during to three position detection signalssAfter commutate, described first precalculated position, the 3rd
Precalculated position is located at the two ends of the first master cylinder respectively.
Control device for reversing proposed by the present invention is provided with primary importance sensor, the 4th position sensor, pressure sensing
Device and control unit, primary importance sensor sends primary importance when the piston of the first master cylinder runs to the first precalculated position
Detection signal, control unit controls pumping system in t time delay after receiving primary importance detection signalsAfter commutate；?
In commutation process, whether the piston in order to judge the second master cylinder runs and puts in place, and on the second master cylinder, setting the 4th position passes
Sensor, when the piston that the 4th position sensor detects the second master cylinder runs to the second extreme position, the 4th position sensing
Device sends the second limit signal；In commutation process, (hit cylinder phenomenon) too late when commutation occurs, the pressure in hydraulic drive unit
Power necessarily occurs that hydraulic shock is that pressure increases suddenly, therefore the pressure according to pressure transducer feedback, and control unit is permissible
Judge whether commutation opportunity is too late；Problem if there is too early commutation, then, the piston of the second master cylinder cannot run and put in place
I.e. piston cannot run to the second extreme position, and therefore, whether control unit can be according to receiving the second pole in commutation process
Whether limit signal is too early to judge commutation opportunity；To sum up, control unit can be according to pressure transducer and the 4th position sensor
Feedback judge current commutation be just suitable, too early or commutation is too late that is to say, that may determine that current prolonging for commutation
Time t latesIt is just right, too little or too big, if current commutation action occurs in that the too early problem of commutation, then meaning
T time delaysLess than normal, in commutation next time, control unit can increase time delay；If current commutation action occurs
Commutation problem too late, then mean t time delaysBigger than normal, when in commutation next time, control unit can reduce delay
Between；If current commutation action is just suitable, the piston of the second master cylinder just runs to the second extreme position, pressure transducer
It is not detected by compression shock, current t time delay is describedsJust suitable, when remaining in that current delay during commutation next time
Between ts.
By the operation principle of the control device for reversing of the present invention it is recognised that it is adjusted according to current actual commutation condition
T time delay of section commutation next times, and then improve pumping system work efficiency；In addition, in view of this control device for reversing can be certainly
Dynamic regulation t time delays, in the fabrication process, waste time and energy de-regulation t time delay without commissioning staffs, reduce pumping
The debugging difficulty of system, brings great convenience for manufacturing.
As a second aspect of the present invention, the present invention proposes a kind of pumping system, is provided with the first master cylinder, the second master
Oil cylinder, the first conveying cylinder, the control device for reversing of the second conveying cylinder, hydraulic drive unit and any of the above-described, the first master cylinder
Connect with the second master cylinder, it is the first master cylinder that described hydraulic drive unit is used for and the second master cylinder provides power.
Pumping system proposed by the present invention pass through using above-mentioned control device for reversing, can with real-time adjustment commutating period,
And then make pumping system reach optimal left and right state；In addition, by using this control device for reversing, reducing pumping system
Commissioning requirements, are conducive to the batch production of pumping system.
As a third aspect of the present invention, the present invention proposes a kind of pumping equipment, is provided with mobile platform and above-mentioned
Pumping system, described pumping system is arranged on described mobile platform.Described pumping equipment be specifically as follows concrete mixer or
Vehicle loaded pump.
Compared with prior art, by using above-mentioned pumping system, be conducive to being lifted the working performance of pumping equipment and
Manufacture efficiency.
As a fourth aspect of the present invention, the present invention proposes a kind of reverse control method for pumping system, described
Pumping system is provided with the first master cylinder, the second master cylinder, the first conveying cylinder, the second conveying cylinder and hydraulic drive unit, and first
Master cylinder and the series connection of the second master cylinder, it is the first master cylinder that described hydraulic drive unit is used for and the second master cylinder provides power；
Described control method comprises the following steps:
Pressure in real-time monitoring hydraulic drive unit；
Monitor the run location of the piston of the first master cylinder and the second master cylinder；
Control described pumping system in t time delay after the piston of the first master cylinder reaches the first precalculated positionsAfter change
To；
If in commutation process, the piston of the second master cylinder does not reach the second extreme position, then increase t time delays；
If in commutation process, the piston of the second master cylinder reaches the second extreme position, and in hydraulic drive unit
Pressure increases suddenly, then reduce t time delays.
In preferred technical scheme, described reverse control method is further comprising the steps of:
Control described pumping system in t time delay after the piston of the second master cylinder reaches the second precalculated positionsAfter change
To；
If in commutation process, the piston of the first master cylinder does not reach the first extreme position, then increase t time delays；
If in commutation process, the piston of the first master cylinder reaches the first extreme position, and in hydraulic drive unit
Pressure increases suddenly, then reduce t time delays.
Compared with prior art, reverse control method proposed by the present invention passes through the commutation feelings of monitor in real time pumping system
Condition, can revise time delay during pumping system commutation according to current condition of commutation, in real time so that it is guaranteed that pumping system is in
Optimal working condition.In addition, it also reduces the requirement to commissioning staff for the manufacture process, be conducive to the high-volume of pumping system
Produce.
Brief description
The accompanying drawing 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 is the schematic perspective view of pumping system in correlation technique；
Fig. 2 is the schematic cross-section of pumping system shown in Fig. 1；
The FB(flow block) of the control device for reversing that Fig. 3 provides for the specific embodiment of the invention；
The schematic cross-section of the pumping system that Fig. 4 provides for the specific embodiment of the invention.
Description of reference numerals:
In attached Fig. 1 and 2: 1 master cylinder 2 conveying cylinder 3 hopper, 4 distributing valve, 5 concrete piston 6 travel switch
In accompanying drawing 4: 1 first master cylinder 2 first conveying cylinder 3 hopper 4 distributing valve 5 first concrete piston
6 primary importance sensor, 7 second position sensor 8 the 4th position sensor 9 the 3rd position sensor 10
Two master cylinder 11 second conveys cylinder 12 second concrete piston
Specific embodiment
It should be noted that in the case of not conflicting, the embodiment in the present invention and the feature in embodiment can phases
Mutually combine.To describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
As shown in figure 4, the pumping system that the specific embodiment of the invention proposes is provided with the first master cylinder 1, the second master cylinder
10th, the first conveying cylinder 2, second conveying cylinder 11, the first concrete piston 5, the second concrete piston 12, hopper 3, distributing valve 4, hydraulic-driven list
First (not shown) and control device for reversing, the rodless cavity of the first master cylinder 1 is connected with the rodless cavity of the second master cylinder 10, makes
First master cylinder 1 is connected with the second master cylinder 10 (it should be noted that the rod chamber and second of the first master cylinder 1 can also allow
The rod chamber connection of master cylinder 10, principle is similar with control mode), the first concrete piston 5 is slidably disposed in the first conveying cylinder 2
Interior, the piston rod of the first master cylinder 1 is connected with the first concrete piston 5, and the second concrete piston 12 is slidably disposed in the second conveying cylinder
In 11, the piston rod of the second master cylinder 10 is connected with the second concrete piston 12, and hydraulic drive unit is that the first master cylinder 1 and second is main
Oil cylinder 10 provides hydraulic oil；During operation, under the ordering about of the first master cylinder 1 and the second master cylinder 10, the first conveying cylinder 2 and second
Conveying cylinder 11 alternately sucks material in hopper 3 and the allocated valve 4 alternately pumps out material；In the process, control device for reversing
Control the commutation (i.e. the commutation of the first master cylinder 1 and the second master cylinder 10) of pumping system.
The control device for reversing that the specific embodiment of the invention proposes is provided with primary importance sensor 6, second position sensing
Device 7, the 3rd position sensor 9, the 4th position sensor 8, pressure transducer (not shown) and control unit, as Fig. 4 institute
Show, primary importance sensor 6 is arranged on the right-hand member of the first master cylinder 1, in order that piston as far as possible can in commutation process steadily
Slow down and stop, its particular location can determine according to the extreme position that the first master cylinder 1 is located at right-hand member, will its setting
At the extreme position preset distance of right-hand member；In the same manner, the 3rd position sensor 9 is using identical with primary importance sensor 6
Mode be configured；Second position sensor 7 is arranged on the extreme position of the first master cylinder 1 left end, the 4th position sensing
Device 8 is arranged on the extreme position of the second master cylinder 10 left end.The operation of this control device for reversing to be described in conjunction with accompanying drawing 3
Journey, specific as follows:
When initial, hydraulic oil enters from the rod chamber of the second master cylinder 10, and the piston ordering about the second master cylinder 10 is transported to the left
Dynamic, the hydraulic oil in the rodless cavity of the second master cylinder 10 enters the rodless cavity of the first master cylinder 1, and then orders about the first master cylinder 1
Piston move right, the hydraulic oil in the rod chamber of the first master cylinder 1 flows out to hydraulic oil container；Work when the first master cylinder 1
When plug runs to primary importance sensor 6, primary importance sensor 6 feeds back primary importance to control unit after piston is detected
Signal (step s1 corresponding in Fig. 3), control unit receives after primary importance signal through t time delaysBackward pumping system
System sends commutation control instruction, and pumping system starts to commutate (corresponding to step s2 in Fig. 3)；In commutation process, it is divided into deceleration
With two stages of commutation；In the decelerating phase: the hydraulic oil entering from the second master cylinder 10 rod chamber progressively reduces until zero, from the
The hydraulic oil that one master cylinder 1 rod chamber flows out also progressively reduces until zero, accordingly, the first master cylinder 1 and the second master cylinder 10
Translational speed gradually reduce until stop；In commutation phase: hydraulic oil enters from the rod chamber of the first master cylinder 1, orders about work
Plug is moved to the left, and the hydraulic oil of the rodless cavity of the first master cylinder 1 enters the rodless cavity of the second master cylinder 10, and then it is main to order about second
The piston of oil cylinder 10 moves right, and the hydraulic oil in the rod chamber of the second master cylinder 10 flows out to hydraulic oil container；Obviously, passing through
After commutating and accelerating two stages, change the first master cylinder 1 and the direction of action of the second master cylinder 10, that is, complete to commutate；?
While commutation, the 4th position sensor 8 and pressure transducer feed back detection signal (corresponding in Fig. 3 to control unit in real time
Step s3), controller judges the commutation of current pumping system according to the testing result of the 4th position sensor 8 and pressure transducer
Situation (step s4 corresponding in Fig. 3), if control unit only receives the 4th position sensor 8 in commutation process and feeds back
The second limit signal it is meant that in commutation process the piston of the second master cylinder 10 reach the extreme position of left end, commutation
It is normal, in this case, during commutation next time, keep time delay constant (corresponding to step s6 in Fig. 3 and s8)；If
Control unit does not receive the second limit signal of the 4th position sensor 8 feedback it is meant that commutating in commutation process
In journey, the piston of the second master cylinder 10 does not reach the extreme position of left end, commutation is described too early, the stroke of the second master cylinder 10 is not
It is utilized effectively, in this case, during commutation next time, needs time delay to increase, the concrete mode that increases is ts(n+1)=(1
+k1)ts(n)(corresponding to step s5 in Fig. 3 and s8, wherein, increase coefficient k1Can as the case may be or result of the test set),
By increasing time delay, make the piston of the second master cylinder 10 can reach the extreme position of left end in commutation process；If
Control unit not only have received the second limit signal in commutation process but also found that the pressure signal that pressure transducer feeds back was unexpected
Increase, then mean that the piston of the second master cylinder 10 and left end end cap there occurs collision (hitting cylinder) in commutation process, this says
Bright commutation too late, causes hydraulic shock, in this case, during commutation next time, needs to reduce time delay, concrete decreasing fashion
For ts(n+1)=(1-k2)ts(n)(corresponding to step s7 in Fig. 3 and s8, wherein, degradation factor k2Can as the case may be or examination
Test result to set), by reducing time delay, reduce the distance of the piston of the second master cylinder 10 to left end movement, and then guarantee
Piston just completed to commutate before reaching left end extreme position and hitting cylinder.
By above-mentioned operation process it is recognised that the pumping system that the present invention is embodied as providing can make full use of first
Master cylinder 1 and the stroke of the second master cylinder 10, and avoid occurring hydraulic shock in commutation process, finally, be conducive to improving pumping
The working performance of system and service life；In addition, the debug time of pumping system, Jin Eryou in the fabrication process, can be reduced
Beneficial to raising manufacture efficiency.
It should be noted that primary importance sensor 6, second position sensor 7, the 3rd position sensor 9 and the 4th
The set location putting sensor 8 is not unique, specifically, primary importance sensor 6 can be arranged on the first master cylinder 1
The precalculated position of left end on, second position sensor 7 is arranged on the extreme position of the first master cylinder 1 right-hand member, the 3rd position
Sensor 9 is arranged on the precalculated position of left end of the second master cylinder 10, and the 4th position sensor 8 is arranged on the second master cylinder 10
The extreme position of right-hand member.
In other embodiments, control device for reversing can omit primary importance sensor 6 and the 4th position sensor 10,
Second position sensor 7 and the 3rd position sensor 9 can also be omitted, certainly, both of these case, the function of control device for reversing
Can be affected accordingly；When dispensing primary importance sensor 6 and four position sensors 10, control unit can only basis
Situation in current commutation process for the piston of the first master cylinder 1 to adjust t time delays, in the same manner, dispensing the second position
When sensor 7 and three position sensors 9, control unit can only be according to the piston of the second master cylinder 10 in current commutation process
In situation adjusting t time delays, that is, (first is main in once complete stroke for the first master cylinder 1 and the second master cylinder 10
Oil cylinder 1 or the second master cylinder 10) from left to right, then complete a suction and pumping procedure more from right to left) adjust and once prolong
Time t lates, adjustment frequency minimizing half.
In the case of dispensing second position sensor 7 and the 3rd position sensor 9, the first master cylinder 1 can be adopted
The journey time moving to right-hand member from left end to set the journey time that the first master cylinder 1 moves to left end from right-hand member, in order that
Pumping system is preferably worked continuously, and can arrange the 5th position sensing on the 3rd precalculated position of the first master cylinder 1 left end
Device, when the piston of the first master cylinder 1 runs to three precalculated positions, the 5th position sensor feeds back the 3rd to control unit
Put detection signal, control unit controls pumping system in t time delay after receiving the 3rd position detection signalsAfter commutate.
Certainly second position sensor 7 can also only be dispensed, the piston of the second master cylinder 10 runs making a reservation for right-hand member
When commutation in position, time delay tsThe situation not commutated in left end further according to the piston of the first master cylinder 1 is adjusted.
On the basis of the above, the specific embodiment of the present invention also proposes a kind of pumping being provided with above-mentioned pumping system and sets
Standby, this pumping equipment can be specifically concrete mixer or Vehicle loaded pump.Compared with prior art, by using above-mentioned pumping
System, is conducive to being lifted working performance and the manufacture efficiency of concrete mixer or Vehicle loaded pump.
On the basis of the above, the specific embodiment of the present invention also proposes a kind of reverse control method for pumping system；
Comprise the following steps:
Pressure in real-time monitoring hydraulic drive unit；
Monitor the run location of the piston of the first master cylinder 1 and the second master cylinder 10；
Control described pumping system in t time delay after the piston of the first master cylinder 1 reaches the first precalculated positionsAfter change
To；
If in commutation process, the piston of the second master cylinder 10 does not reach the second extreme position, then increase time delay
ts；
If in commutation process, the piston of the second master cylinder 10 reaches the second extreme position, and in hydraulic drive unit
Pressure increase suddenly, then reduce time delay ts.
Preferably, control described pumping system when postponing after the piston of the second master cylinder 10 reaches the second precalculated position
Between tsAfter commutate；
If in commutation process, the piston of the first master cylinder 1 does not reach the first extreme position, then increase time delay
ts；
If in commutation process, the piston of the first master cylinder 1 reaches the first extreme position, and in hydraulic drive unit
Pressure increases suddenly, then reduce t time delays.Thus improving precision and the efficiency of commutation control further.
Compared with prior art, this reverse control method passes through the condition of commutation of monitor in real time pumping system, according to current
Condition of commutation revises time delay during pumping system commutation in real time, so that it is guaranteed that pumping system is in optimal working condition.
In addition, it also reduces the requirement to commissioning staff for the manufacture process, be conducive to the production in enormous quantities of pumping system.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement made etc., should be included within the scope of the present invention.
Claims (12)
1. a kind of control device for reversing for pumping system, described pumping system is provided with the first master cylinder (1), the second main oil
Cylinder (10), the first conveying cylinder (2), the second conveying cylinder (11) and hydraulic drive unit, the first master cylinder (1) and the second master cylinder
(10) connect, it is the first master cylinder (1) that described hydraulic drive unit is used for and the second master cylinder (10) provides power；Its feature exists
In described control device for reversing is provided with primary importance sensor (6), the 4th position sensor (8), pressure transducer and control
Unit；When the piston of the first master cylinder (1) runs to the first precalculated position, described primary importance sensor (6) is single to controlling
Unit's feedback primary importance detection signal, when the piston of the second master cylinder (10) runs to the second extreme position, described 4th
Put sensor (8) and feed back the second limit signal to control unit；Described pressure transducer be used for detecting hydraulic drive unit, first
Pressure in master cylinder (1) or the second master cylinder (10), described control unit controls when receiving primary importance detection signal
Described pumping system is in t time delaysAfter commutate, described control unit is according to the 4th position sensor (8) and pressure transducer
T time delay described in feedback adjustmentsSize.
2. control device for reversing according to claim 1 it is characterised in that be additionally provided with second position sensor (7) and
3rd position sensor (9)；When the piston of the first master cylinder (1) runs to the first extreme position, described second position sensing
Device (7) feeds back the first limit signal to control unit；When the piston of the second master cylinder (10) runs to the second precalculated position, institute
State the 3rd position sensor (9) and feed back second position detection signal to control unit；Described control unit is receiving second
Put and control described pumping system during detection signal in t time delaysAfter commutate, described control unit is according to second position sensor
And t time delay described in the feedback adjustment of pressure transducer (7)sSize.
If 3. control device for reversing according to claim 2 is it is characterised in that in commutation process, described control is single
Unit does not receive the second limit signal or the first limit signal, described control unit increase t described time delays；If changed
To during, described control unit receives the second limit signal or the first limit signal, and pressure described in commutation process
The pressure that sensor detects increases suddenly, described control unit reduction t described time delays.
4. control device for reversing according to claim 3 is it is characterised in that described primary importance sensor (6) is arranged on
Near its rod chamber side and the extreme position from rod chamber has preset distance to first master cylinder (1)；Described second position sensing
Device (7) is arranged on the first master cylinder (1) above and on the extreme position of its rodless cavity side；Described 3rd position sensor
(9) it is arranged on the second master cylinder (10) near its rod chamber side and the extreme position from rod chamber has preset distance；Described
Four position sensors (8) are arranged on the second master cylinder (10) above and on the extreme position of its rodless cavity side.
5. control device for reversing according to claim 3 is it is characterised in that described primary importance sensor (6) is arranged on
Near its rodless cavity side and the extreme position from rodless cavity has preset distance to first master cylinder (1)；Described second position sensing
Device (7) is arranged on the first master cylinder (1) above and on the extreme position of its rod chamber side；Described 3rd position sensor
(9) it is arranged on the second master cylinder (10) near its rodless cavity side and the extreme position from rodless cavity has preset distance；Described
Four position sensors (8) are arranged on the second master cylinder (10) above and on the extreme position of its rod chamber side.
6. the control device for reversing according to any one of claim 3 to 5 is it is characterised in that t described time delaysAccording to
Under type is adjusted:
During increase: ts(n+1)=(1+k1)ts(n)；During reduction: ts(n+1)=(1-k2)ts(n)；Wherein, k1For increase coefficient, k2For passing
Subtract coefficient.
7. control device for reversing according to claim 6 is it is characterised in that described primary importance sensor (6), second
Put sensor (7), the 3rd position sensor (9) and the 4th position sensor (8) and be travel switch.
8. control device for reversing according to claim 1 is it is characterised in that be additionally provided with the 3rd position sensor (9), when
When the piston of the second master cylinder (10) runs to the second precalculated position, described 3rd position sensor (9) feeds back to control unit
Second position detection signal, described control unit controls described pumping system postponing when receiving second position detection signal
Time tsAfter commutate；Or,
It is additionally provided with the 5th position sensor, when the piston of the first master cylinder (1) runs to three precalculated positions, the described 5th
Position sensor feeds back the 3rd position detection signal to control unit, and described control unit is receiving the 3rd position detection signal
When control described pumping system in t time delaysAfter commutate, described first precalculated position, the 3rd precalculated position are located at the respectively
The two ends of one master cylinder (1).
9. a kind of pumping system, is provided with the first master cylinder (1), the second master cylinder (10), the first conveying cylinder (2), the second conveying
Cylinder (11) and hydraulic drive unit, the first master cylinder (1) and the second master cylinder (10) series connection, described hydraulic drive unit be used for be
First master cylinder (1) and the second master cylinder (10) provide power；It is characterized in that, it is additionally provided with any one of claim 1 to 8 institute
The control device for reversing stated.
10. a kind of pumping equipment, is provided with mobile platform it is characterised in that being additionally provided with the pumping system described in claim 9
System, described pumping system is arranged on described mobile platform.
A kind of 11. reverse control methods for pumping system, described pumping system is provided with the first master cylinder (1), the second master
Oil cylinder (10), the first conveying cylinder (2), the second conveying cylinder (11) and hydraulic drive unit, the first master cylinder (1) and the second master cylinder
(10) connect, it is the first master cylinder (1) that described hydraulic drive unit is used for and the second master cylinder (10) provides power；Its feature exists
In described control method comprises the following steps:
Pressure in real-time monitoring hydraulic drive unit；
Monitor the run location of the piston of the first master cylinder (1) and the second master cylinder (10)；
Control described pumping system in t time delay after the piston of the first master cylinder (1) reaches the first precalculated positionsAfter commutate；
If in commutation process, the piston of the second master cylinder (10) does not reach the second extreme position, then increase t time delays；
If in commutation process, the piston of the second master cylinder (10) reaches the second extreme position, and in hydraulic drive unit
Pressure increases suddenly, then reduce t time delays.
12. reverse control methods according to claim 11 are it is characterised in that further comprising the steps of: in the second main oil
The piston of cylinder (10) controls described pumping system in t time delay after reaching the second precalculated positionsAfter commutate；
If in commutation process, the piston of the first master cylinder (1) does not reach the first extreme position, then increase t time delays；
If in commutation process, the piston of the first master cylinder (1) reaches the first extreme position, and the pressure in hydraulic drive unit
Power increases suddenly, then reduce t time delays.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410334886.3A CN104196692B (en) | 2014-07-15 | 2014-07-15 | Pumping equipment, pumping system and reversing control device and method of pumping system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410334886.3A CN104196692B (en) | 2014-07-15 | 2014-07-15 | Pumping equipment, pumping system and reversing control device and method of pumping system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104196692A CN104196692A (en) | 2014-12-10 |
| CN104196692B true CN104196692B (en) | 2017-01-18 |
Family
ID=52082036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410334886.3A Active CN104196692B (en) | 2014-07-15 | 2014-07-15 | Pumping equipment, pumping system and reversing control device and method of pumping system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104196692B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422133B (en) * | 2015-11-17 | 2018-09-11 | 湖南五新隧道智能装备股份有限公司 | A kind of concrete spraying vehicle fault early warning system and control method |
| CN110173278A (en) * | 2019-04-29 | 2019-08-27 | 安百拓（南京）建筑矿山设备有限公司 | The pumping control method of wet-spraying machine |
| CN112412726B (en) * | 2019-08-22 | 2022-11-25 | 河北雷萨重型工程机械有限责任公司 | Pumping system control method of vehicle, pumping system and vehicle |
| CN112524017B (en) * | 2020-12-24 | 2022-09-09 | 徐州徐工施维英机械有限公司 | Method and system for acquiring concrete pump reversing signals |
| CN114687980B (en) * | 2020-12-29 | 2023-10-10 | 三一汽车制造有限公司 | Pumping equipment, pumping system and reversing parameter adjusting method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3834678A1 (en) * | 1988-10-12 | 1990-04-19 | Putzmeister Maschf | METHOD AND DEVICE FOR CORRECTING THE PISTON STROKE IN THE CYLINDERS OF A TWO-CYLINDER FUEL PUMP |
| CN1788158A (en) * | 2004-03-26 | 2006-06-14 | 粉刷师股份公司 | Device and method for controlling a two-cylinder thick matter pump |
| CN101776107A (en) * | 2010-03-24 | 2010-07-14 | 长沙中联重工科技发展股份有限公司 | Exact stroke control method and stroke control device of serial oil cylinders |
| CN102410184A (en) * | 2011-09-09 | 2012-04-11 | 中联重科股份有限公司 | Pumping reverse control method, device and system for pumping device |
| CN102979692A (en) * | 2012-05-22 | 2013-03-20 | 北汽福田汽车股份有限公司 | Tandem hydraulic cylinder device, control method thereof and pumping device |
| CN103573727A (en) * | 2013-11-07 | 2014-02-12 | 中联重科股份有限公司 | Series oil cylinder reversing control method and device and concrete pumping system |
| CN203430755U (en) * | 2013-08-22 | 2014-02-12 | 徐州徐工施维英机械有限公司 | Concrete pump reversing system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3748954B2 (en) * | 1996-09-06 | 2006-02-22 | 石川島建機株式会社 | Hydraulic control circuit for viscous fluid pump |
| JPH10331762A (en) * | 1997-05-30 | 1998-12-15 | Niigata Eng Co Ltd | Operation method for concrete pump and concrete pump |
-
2014
- 2014-07-15 CN CN201410334886.3A patent/CN104196692B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3834678A1 (en) * | 1988-10-12 | 1990-04-19 | Putzmeister Maschf | METHOD AND DEVICE FOR CORRECTING THE PISTON STROKE IN THE CYLINDERS OF A TWO-CYLINDER FUEL PUMP |
| CN1788158A (en) * | 2004-03-26 | 2006-06-14 | 粉刷师股份公司 | Device and method for controlling a two-cylinder thick matter pump |
| CN101776107A (en) * | 2010-03-24 | 2010-07-14 | 长沙中联重工科技发展股份有限公司 | Exact stroke control method and stroke control device of serial oil cylinders |
| CN102410184A (en) * | 2011-09-09 | 2012-04-11 | 中联重科股份有限公司 | Pumping reverse control method, device and system for pumping device |
| CN102979692A (en) * | 2012-05-22 | 2013-03-20 | 北汽福田汽车股份有限公司 | Tandem hydraulic cylinder device, control method thereof and pumping device |
| CN203430755U (en) * | 2013-08-22 | 2014-02-12 | 徐州徐工施维英机械有限公司 | Concrete pump reversing system |
| CN103573727A (en) * | 2013-11-07 | 2014-02-12 | 中联重科股份有限公司 | Series oil cylinder reversing control method and device and concrete pumping system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104196692A (en) | 2014-12-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104196692B (en) | Pumping equipment, pumping system and reversing control device and method of pumping system | |
| CN104074143B (en) | Prestressing force intelligent circulation mud jacking system and its control method | |
| CN103660359B (en) | Hydraulic control system and method for passive type four-corner-leveling hydraulic press | |
| CN105150356B (en) | The hydraulic control system and its full-automatic bidirectional pressurized hydraulic control method of a kind of brick machine | |
| CN103114983B (en) | Pumping stroke control method for viscous material double-cylinder pump and pumping equipment for viscous material | |
| CN103603843A (en) | Oil cylinder control system, oil cylinder control method and pumping machine | |
| CN201568245U (en) | Concrete pumping unit and concrete pumping device | |
| CN105058554B (en) | A kind of cylinder component and its full-automatic bidirectional pressurized hydraulic brick machine | |
| CN103062006B (en) | A kind of Double-cylinder piston type mortar pump | |
| CN111283673B (en) | Hydraulic system and mechanical arm | |
| CN207687109U (en) | A kind of frequency conversion high-precision super high pressure hydraulic control loading system | |
| CN103423139B (en) | Pumping mechanism and controlling method thereof and concrete pumping equipment | |
| CN105041744B (en) | A kind of PLC control system of ceramic press servo energy-saving control system and method | |
| KR20150006476A (en) | Method for operating a hydraulic press, and hydraulic press | |
| EP2913113A1 (en) | Hydraulic press brake | |
| CN103573728B (en) | Device, method and system for controlling hydraulic oil cylinder and engineering machine | |
| CN103557149A (en) | Control device, method and system of concrete piston and engineering machinery | |
| AU2021443833A1 (en) | Automated construction method for anchor bolt | |
| JP5954927B2 (en) | Hydraulic device | |
| US20160245272A1 (en) | Water pump control system | |
| CN201433869Y (en) | Pressure controllable mortar pump | |
| CN103148060B (en) | Step on lift control system and the controlling method of car staircase | |
| CN100443294C (en) | Proportionally controlled hydraulic system for precise powder forming hydraulic press | |
| JP2022548041A (en) | Working machine and method of operating the working machine | |
| CN108153343B (en) | Conjoined compression dustbin and control system and control method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Pumping equipment, pumping system and reversing control device and method of pumping system Effective date of registration: 20181227 Granted publication date: 20170118 Pledgee: Business Department of Hunan Branch of China Construction Bank Co., Ltd. Pledgor: SANY Automobile Manufacturing Co., Ltd. Registration number: 2018430000147 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20211217 Granted publication date: 20170118 Pledgee: Business Department of Hunan Branch of China Construction Bank Co.,Ltd. Pledgor: Sany Automobile Manufacturing Co.,Ltd. Registration number: 2018430000147 |