CN102777364A - Pumping mechanism, control method thereof and concrete pumping equipment - Google Patents
Pumping mechanism, control method thereof and concrete pumping equipment Download PDFInfo
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- CN102777364A CN102777364A CN201210273378XA CN201210273378A CN102777364A CN 102777364 A CN102777364 A CN 102777364A CN 201210273378X A CN201210273378X A CN 201210273378XA CN 201210273378 A CN201210273378 A CN 201210273378A CN 102777364 A CN102777364 A CN 102777364A
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- 238000005086 pumping Methods 0.000 title claims abstract description 294
- 230000007246 mechanism Effects 0.000 title claims abstract description 107
- 238000000034 method Methods 0.000 title claims abstract description 40
- 230000033001 locomotion Effects 0.000 claims abstract description 94
- 230000001276 controlling effect Effects 0.000 claims description 28
- 230000006835 compression Effects 0.000 claims description 16
- 238000007906 compression Methods 0.000 claims description 16
- 230000035939 shock Effects 0.000 claims description 16
- 230000001105 regulatory effect Effects 0.000 claims description 15
- 238000001514 detection method Methods 0.000 claims description 12
- 230000008859 change Effects 0.000 claims description 7
- 244000188472 Ilex paraguariensis Species 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 230000005611 electricity Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 238000013459 approach Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 230000000750 progressive effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
- F04B9/10—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid
- F04B9/103—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having only one pumping chamber
- F04B9/105—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having only one pumping chamber reciprocating movement of the pumping member being obtained by a double-acting liquid motor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04B15/02—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
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- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention discloses a pumping mechanism which comprises a pumping cylinder (1), a swing cylinder (2), a first reversing valve (3), a second reversing valve (4), a main pump (5) and a swing pump (6), wherein the main pump (5) drives the pumping cylinder (1) and controls the movement direction of the pumping cylinder (1) through the first reversing valve (3), the swing pump (6) drives the swing cylinder (2) and controls the movement direction of the swing cylinder (2) through the second reversing valve (4), the pumping mechanism further comprises a controller (7), and the controller (7) sends reversing signals to the first reversing valve (3) and the second reversing valve (4) and/or sends displacement-changing signals to the main pump (5) according to the movement stroke of a piston rod of the pumping cylinder (1) and/or a piston rod of the swing cylinder (2). The invention also provides concrete pumping equipment with the pumping mechanism and a control method of the corresponding pumping mechanism. The pumping mechanism has the advantages of convenience in operation and higher working efficiency.
Description
Technical field
The present invention relates to pumping mechanism, for example concrete pumping mechanism, mud pumping mechanism etc. the invention still further relates to a kind of controlling method of pumping mechanism, the invention still further relates to a kind of concrete pumping equipment with this pumping mechanism.
Background technique
Pumping mechanism (for example concrete pumping equipment) is a kind of equipment of extensive use in the engineering machinery, can be used for the structural material of thickness states such as pump concrete, mud.With the concrete pumping equipment is example, can comprise two pumping cylinders, two concrete cylinders, two swing cylinders, distributing valve (for example S valve), first selector valve, second selector valve, main pump and semirotary pumps usually.Two pumping cylinders can be connected each other, and main pump drives these two pumping cylinders and passes through the moving direction of first selector valve control pumping cylinder.Two pumping cylinders then drive two concrete cylinders respectively.Two swing cylinders can link each other, and semirotary pump drives these two swing cylinders and passes through the moving direction of two swing cylinders of second selector valve control.The motion of two swing cylinders drives the distributing valve swing.
The working procedure of concrete pumping equipment does, from hopper, draws concrete through the concrete cylinder, then through delivery pipe with concreting to the working position.More particularly; The piston rod of concrete cylinder drives and to-and-fro motion through the pumping cylinder; The to-and-fro motion of the piston rod of swing cylinder then drives the distributing valve reciprocally swinging, through the coordination of distributing valve and concrete cylinder, makes distributing valve alternately one of them concrete cylinder is communicated with delivery pipe; And another concrete cylinder is communicated with hopper, thereby realizes concrete approximately continuous flowing in conveyance conduit.
The coordination of distributing valve and concrete cylinder can be through controlling first selector valve and second selector valve is realized.And,, also need control the discharge capacity of main pump usually simultaneously in order to reduce the impact of pumping oil cylinder.In existing pumping mechanism; Usually on the precalculated position of the cylinder body of two pumping cylinders, install respectively near switch, when the piston rod of pumping cylinder through near switch the time, send signal near switch and give control unit; After control unit receives this signal; Signal to main pump, first selector valve and second selector valve with the fixed logic order, that is to say, the scheduled time (for example t1) sends to main pump and falls the discharge capacity signal at interval; The scheduled time (for example t2) sends commutation signal for first selector valve at interval, and the scheduled time (for example t3) sends commutation signal for second selector valve at interval.The t1 value is littler than t2 value and t3 value usually; Thereby thereby make main pump reduce the movement velocity that discharge capacity reduces the piston rod of pumping cylinder earlier; After the movement velocity of the piston rod of pumping cylinder is reduced to predeterminated level, makes win selector valve and the switching-over of second selector valve again, thereby reduce impact the pumping cylinder.
In above-mentioned existing technology, because the trigger point relative fixed of therefore transmitting control signal for main pump, first selector valve and second selector valve is all fixed in the installation of the cylinder body of two pumping cylinders near the position of switch.But in practice,, therefore need correspondingly to regulate the trigger point of transmitting control signal for main pump, first selector valve and second selector valve because the range of two pumping cylinders of pumping mechanism possibly need to regulate according to concrete job requirements.In above-mentioned existing technology, can only regulate near the mounting point of switch through changing, thereby need dismounting near switch, cause inconvenient operation, working efficiency is lower.
Summary of the invention
The purpose of this invention is to provide a kind of easy to operate, pumping mechanism that working efficiency is higher, and a kind of controlling method of corresponding pumping mechanism is provided.
To achieve these goals; On the one hand; The invention provides a kind of pumping mechanism; This pumping mechanism comprises pumping cylinder, swing cylinder, first selector valve, second selector valve, main pump and semirotary pump, and said main pump drives said pumping cylinder and controls the moving direction of said pumping cylinder through said first selector valve, and said semirotary pump drives said swing cylinder and controls the moving direction of said swing cylinder through said second selector valve; Wherein, This pumping mechanism also comprises controller, and this controller is according to the movement travel of the piston rod of the piston rod of said pumping cylinder and/or said swing cylinder, sends commutation signal and/or sends to said main pump and to become the discharge capacity signal to said first selector valve and second selector valve.
On the other hand, the present invention also provides a kind of concrete pumping equipment, and this concrete pumping equipment comprises pumping mechanism as indicated above.
Also on the other hand; The present invention also provides a kind of controlling method of pumping mechanism; Said pumping mechanism comprises pumping cylinder, swing cylinder, first selector valve, second selector valve, main pump and semirotary pump; Said main pump drives said pumping cylinder and controls the moving direction of said pumping cylinder through said first selector valve; Said semirotary pump drives said swing cylinder and controls the moving direction of said swing cylinder through said second selector valve; Wherein, said controlling method comprises control step: according to the movement travel of the piston rod of the piston rod of said pumping cylinder and/or said swing cylinder, control the switching-over of said first selector valve and second selector valve and/or control said main pump and change discharge capacity.
Pass through technique scheme; Because pumping mechanism also comprises controller; This controller is according to the movement travel of the piston rod of the piston rod of said pumping cylinder and/or said swing cylinder; Send commutation signal and/or send to said main pump and to become the discharge capacity signal to said first selector valve and second selector valve, when therefore regulating the position of giving the trigger point that main pump, first selector valve and second selector valve transmit control signal if desired, the predetermined stroke of piston rod that only need correspondingly change piston rod and/or the said swing cylinder of the pumping cylinder that is provided with in the controller gets final product; Need not dismounting fully near switch, therefore easy to operate, working efficiency is higher.
Other features and advantages of the present invention will partly specify in embodiment subsequently.
Description of drawings
Accompanying drawing is to be used to provide further understanding of the present invention, and constitutes the part of specification, is used to explain the present invention with following embodiment, but is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the structural representation according to the pumping mechanism of one embodiment of the present invention;
Fig. 2 is the control principle schematic representation according to the pumping mechanism of one embodiment of the present invention;
Fig. 3 is the schematic representation of control principle more specifically of pumping mechanism as shown in Figure 2;
Fig. 4 is the control principle schematic representation of the controller of pumping mechanism as shown in Figure 2.
Description of reference numerals
1 pumping cylinder; 2 swing cylinders;
3 first selector valves; 4 second selector valves;
5 main pumps; 6 semirotary pumps;
7 controllers; 8 first sensors;
9 second sensors; 10 concrete cylinders;
11 distributing valves.
Embodiment
Be elaborated below in conjunction with the accompanying drawing specific embodiments of the invention.Should be understood that embodiment described herein only is used for explanation and explains the present invention, is not limited to the present invention.
On the one hand, the invention provides a kind of pumping mechanism.As shown in Figure 1; According to a kind of pumping cylinder 1, swing cylinder 2, first selector valve 3, second selector valve 4, main pump 5 and semirotary pump 6 of comprising of the present invention; Said main pump 5 drives said pumping cylinder 1 is also controlled said pumping cylinder 1 through said first selector valve 3 moving direction; Said semirotary pump 6 drives said swing cylinder 2 also through the moving direction of the said swing cylinder 2 of said second selector valve, 4 controls, and wherein, this pumping mechanism also comprises controller 7; This controller 7 is according to the movement travel of the piston rod of the piston rod of said pumping cylinder 1 and/or said swing cylinder 2, sends commutation signal (i for example to said first selector valve 3 and second selector valve 4
2And i
3) and/or send to said main pump 5 and to become discharge capacity signals (i for example
1).
As shown in Figure 1, the piston rod of pumping cylinder 1 is connected with the piston rod of concrete cylinder 10, to drive the piston rod to-and-fro motion of concrete cylinder 10.The piston rod of swing cylinder 2 is connected with distributing valve 11 through transmission shaft, to drive distributing valve 11 swings.In mode of execution shown in Figure 1, pumping mechanism comprises two pumping cylinders 1, two concrete cylinders 10, two swing cylinders 2.Two pumping cylinders 1 are connected each other, the piston rod interlock of two swing cylinders 2.But pumping mechanism of the present invention is not limited to above-mentioned concrete structure, and the number of pumping cylinder 1, concrete cylinder 10, swing cylinder 2 can suitably change.In Fig. 1, also show water tank 12 and hopper 13, its concrete structure and annexation are well known in the art, repeat no more at this.
Pass through technique scheme; Because pumping mechanism also comprises controller 7; This controller 7 is according to the movement travel of the piston rod of the piston rod of said pumping cylinder 1 and/or said swing cylinder 2; Send commutation signal and/or send to said main pump 5 and to become the discharge capacity signals to said first selector valve 3 and second selector valve 4, when therefore regulating the position of giving the trigger point that main pump 5, first selector valve 3 and second selector valve 4 transmit control signal if desired, the predetermined stroke of piston rod that only need correspondingly change piston rod and/or the said swing cylinder 2 of the pumping cylinder 1 that is provided with in the controller 7 gets final product; Need not dismounting fully near switch, therefore easy to operate, working efficiency is higher.
Preferably, as shown in Figure 3, when the movement travel of the piston rod of said pumping cylinder 1 reached the first predetermined stroke L1, said controller 7 sent commutation signal i to said first selector valve 3
2When the movement travel of the piston rod of said pumping cylinder 1 reached the second predetermined stroke L2, said controller 7 sent commutation signal i to said second selector valve 4
3, the said second predetermined stroke L2 is than the end of travel of the moving direction of the piston rod of the more approaching said pumping cylinder 1 of the said first predetermined stroke L1.This commutation signal i
2And i
3Can confirm according to the concrete form of first selector valve 2 and second selector valve 3 and the concrete pumping mode of pumping mechanism.For example as a kind of concrete mode of execution; Said first selector valve 3 is the three-position electromagnetic selector valve; When the movement travel of the piston rod of said pumping cylinder 1 reached the said first predetermined stroke L1, said controller 7 sent to said first selector valve 3 and makes both sides electromagnet commutation signal i of dead electricity all of said first selector valve 3
2, that is to say, make the selector valve 3 of winning be in meta, thereby main pump 5 stop to drive pumping cylinder 1.As a kind of concrete mode of execution; Said second selector valve 4 is the three-position electromagnetic selector valve; When the movement travel of the piston rod of said pumping cylinder 1 reaches the said second predetermined stroke L2, said controller 7 to said second selector valve 4 send make said second selector valve 4 with got the electric different opposite side electromagnet of a side electromagnet last time and get electric commutation signal i
3That is to say; Get electric (being positioned at position, a left side) if 4 last times of second selector valve are left side electromagnet, then now just make the right side electromagnet of second selector valve 4 get electric (being positioned at right position), vice versa; Thereby make the piston rod to-and-fro motion of swing cylinder 2, thereby make distributing valve 11 reciprocally swingings.The said first predetermined stroke L1 can confirm according to actual needs, is generally the value that approaches end of travel, sends commutation signal so that be reduced near zero the time in the movement velocity of the piston rod of pumping cylinder 1 to first selector valve 3.Simultaneously; The second predetermined stroke L2 also can confirm according to actual needs; Usually than the first predetermined stroke L2 more near the end of travel of the moving direction of the piston rod of pumping cylinder 1; (the trip difference is very little for progressive error between the first predetermined stroke L1 and the second predetermined stroke L2; For example can be several millimeters) can make second selector valve 4 after 3 switching-overs of first selector valve put in place, commutate again; Pressure surge to avoid during the switching-over of first selector valve 3, causing influences the switching-over of second selector valve 4, thereby farthest reduces the impact to pumping cylinder 1, make simultaneously distributing valve 11 can be under the almost immobilising state of material (for example concrete) the switch operating position.
Can adopt various suitable modes to confirm the movement travel of the piston rod of said pumping cylinder 1.Preferably, as depicted in figs. 1 and 2, pumping mechanism also comprises the first sensor 8 that is used for detecting in real time the stroke of said pumping cylinder 1, and said controller 7 is according to the stroke signal i of the said first sensor 8 real-time said pumping cylinders 1 that detect
4Confirm the movement travel of the piston rod of said pumping cylinder 1.
Preferably, when the piston rod of said swing cylinder 2 arrived the 3rd predetermined stroke L3, said controller 7 sent commutation signal i to said first selector valve 3
2This commutation signal i
2Can confirm according to the concrete form of first selector valve 2 and the concrete pumping mode of pumping mechanism.For example as a kind of concrete mode of execution; Said first selector valve 3 is the three-position electromagnetic selector valve; When the piston rod of said swing cylinder 2 arrives the 3rd predetermined stroke L3, said controller 7 to said first selector valve 3 send make said first selector valve 3 with got the electric different opposite side electromagnet of a side electromagnet last time and get electric commutation signal.That is to say, get current potential in position, a left side if 3 last times of first selector valve are left side electromagnet, then now just make the right side electromagnet of the selector valve 3 of winning get current potential in right position, vice versa, thereby make the piston rod to-and-fro motion of pumping cylinder 1.
As indicated above; Before making win selector valve 3 and 4 switching-overs of second selector valve, reduce the discharge capacity of main pump 5 usually earlier, so that reduce the movement velocity of the piston rod of pumping cylinder 1; Thereby make the piston rod of pumping cylinder 1 can reduce movement velocity gradually, reduce impact pumping cylinder 1.Therefore preferably, as shown in Figures 2 and 3, when the movement travel of the piston rod of said pumping cylinder 1 arrived the 4th predetermined stroke L4, said controller 7 sent the signal i that reduces discharge capacities to said main pump 5
1, said the 4th predetermined stroke L4 is than the end of travel of the said first predetermined stroke L1 further from the moving direction of the piston rod of said pumping cylinder 1.Can make main pump 5 reduce discharge capacity as required, make the movement velocity of piston rod of main pump pumping cylinder 1 reduce gradually, reduce impact pumping cylinder 1 by corresponding predetermined curve according to predetermined curve.
Swing cylinder 2 is provided with buffer cavity usually, after in piston rod movement to the buffer cavity of swing cylinder 2, can slow down gradually.Preferably, as shown in Figures 2 and 3, when the movement travel of the piston rod of said swing cylinder 2 reached the 5th predetermined stroke L5, said controller 7 sent the signal i that improves discharge capacities to said main pump 5
1, said the 5th predetermined stroke L5 is than the end of travel of the moving direction of the piston rod of the more approaching said swing cylinder 2 of said the 3rd predetermined stroke L3.Thereby in time improve the movement velocity of the piston rod of pumping cylinder 1.Can make main pump 5 improve discharge capacity according to predetermined curve as required, the system that makes builds and presses and the piston rod action of promotion pumping cylinder 1.Said the 5th predetermined stroke L5 can confirm according to actual conditions, is generally and approaches zero value.As indicated above, the 5th predetermined stroke L5 is usually very near the end of travel of the moving direction of the piston rod of swing cylinder 2.
Can adopt various suitable modes to confirm the movement travel of the piston rod of swing cylinder 2; Preferably; As shown in Figures 2 and 3; Pumping mechanism also comprises second sensor 9 of the stroke that is used for detecting in real time said swing cylinder 2, the stroke signal i of the said swing cylinders 2 that said controller 7 detects according to said second sensor 9 in real time
5Confirm the movement travel of the piston rod of said swing cylinder 2.
As indicated above; Second sensor 9 is used for detecting in real time the stroke of two swing cylinders 2; And owing to the piston rod of two swing cylinders 2 interconnects; Therefore the piston rod of two swing cylinders 2 is synchronized with the movement, and therefore can adopt same second sensor 9 to detect the stroke of two swing cylinders 2 in real time, thereby practice thrift cost.And in order to improve testing precision, as depicted in figs. 1 and 2, also can adopt two second sensors 9 to come to detect in real time respectively the stroke of two swing cylinders 2.
The above-mentioned first sensor 8 and second sensor 9 can adopt the various sensor that can detect the stroke of master cylinder (like pumping cylinder among the present invention 1 and swing cylinder 2) in real time well known in the art, for example can adopt displacement transducer.And the first sensor 8 and second sensor 9 can be installed on pumping cylinder 1 and the swing cylinder 2 through various suitable modes, repeat no more at this.
The movement travel at the piston rod place of the piston rod of said pumping cylinder 1 and/or said swing cylinder 2 in the time of can confirming that said first selector valve 3, second selector valve 4 or main pump 5 transmit control signal according to operating mode, this can accomplish through manual operation.Yet preferably; As shown in Figure 3; Said controller 7 also comprises experts database, and this experts database is used to store the movement travel at piston rod place of piston rod and/or the said swing cylinder 2 of the said pumping cylinder 1 when said first selector valve 3, second selector valve 4 or main pump 5 transmit control signal of said controller 7 under the various working.Thereby can realize the automatic control of pumping mechanism.The occurrence of these predetermined stroke can be empirical value; Can be through test or emulation; Under various simulated conditions (comprising rate of pumping, pumping pressure etc.); Rationally regulate the value of each predetermined stroke L1, L2, L3, L4 and L5, make ride quality reach optimum, the value of L1, L2, L3, L4 and L5 corresponding under each simulated condition and this operating mode is stored in the experts database.Certainly, the 3rd predetermined stroke L3 and the 4th predetermined stroke L4 also can confirm through the design runlength of pumping cylinder 1 and swing cylinder 2, need not to be pre-stored in the experts database.The operating mode of pumping mechanism can comprise the induced pressure of pumping mechanism, desired rate of pumping (pumping gear) etc.
More specifically, said controller 7 can also comprise: the working condition acquiring unit that is used to gather current working information; And the operating mode matching unit, this operating mode matching unit is used for the work information that collects according to said working condition acquiring unit, from said experts database, finds out the movement travel when transmitting control signal with said work information is immediate.
More preferably; Said controller 7 also comprises: the ride quality detection unit; This ride quality detection unit is used to detect the ride quality of said pumping mechanism; And the signal that will represent this ride quality sends to said controller 7, and the movement travel when said controller 7 transmits control signal according to the Signal Regulation of this representative ride quality is said is to optimize said ride quality.Because the complexity of actual conditions and the finiteness of test or emulated data; Canned data possibly can't cover all operating modes in the experts database; This empirical value can't guarantee that ride quality is optimum, so the empirical value of experts database storage can just be used for when actual pumpdown, providing initial value.Movement travel when controller 7 can be represented said the transmitting control signal of Signal Regulation of ride quality according to this is to optimize said ride quality.
Can represent the parameter of the ride quality of pumping mechanism according to the actual conditions selection; For example, said ride quality can comprise: whether the piston the switching-over whether hydraulic system of said pumping mechanism exists the piston of compression shock, said pumping cylinder 1 whether to hit cylinder or pumping cylinder 1 not in place, said matees with the piston switching-over of said swing cylinder 2.The judgment mode of these performances is well known in the art, repeats no more at this.
Movement travel when controller 7 transmits control signal according to the Signal Regulation of representing ride quality is said; This concrete regulative mode for example can for: when said ride quality detection when there is compression shock in the hydraulic system of said pumping mechanism, said controller 7 is regulated the said second predetermined stroke L2; For example, when there is compression shock in the hydraulic system of pumping mechanism, then increase the second predetermined stroke L2,, reduce the compression shock of hydraulic system so that postpone 4 switching-overs of second selector valve; When there is not compression shock in the hydraulic system of pumping mechanism, then suitably reduce the second predetermined stroke L2, so that make 4 switching-overs of second selector valve in advance, improve the pumping efficiency of pumping mechanism.When said ride quality detection is hit cylinder or when not in place, said controller 7 is regulated the said first predetermined stroke L1 to the piston of said pumping cylinder 1; For example, when the piston of pumping cylinder 1 hits cylinder, then reduce the first predetermined stroke L1, so that make 3 times metas of first selector valve in advance, the possibility that the piston of minimizing pumping cylinder 1 hits cylinder; When the piston of pumping cylinder 1 is not in place, then increase the first predetermined stroke L1, so that postpone to make 3 times metas of first selector valve, reduce the piston possibility not in place of pumping cylinder 1.When said ride quality detection when the piston switching-over of the switching-over of the piston of said pumping cylinder 1 and said swing cylinder 2 does not match, said controller 7 is regulated said the 5th predetermined stroke L5.Whether whether the do not match swing that embodied distributing valve 11 and the switching-over of concrete cylinder 10 of the piston switching-over of the switching-over of the piston of pumping cylinder 1 and said swing cylinder 2 matees, and this for example can judge through the time difference that swings between the time point that bit time point and concrete cylinder 10 begin to build pressure of distributing valve 11.Under the situation of optimum, the time point that concrete cylinder 10 begins to build pressure lags behind the time point that distributing valve 11 swings put in place slightly, but should the time difference more little good more.Therefore, lag behind the time point that distributing valve 11 swings put in place if concrete cylinder 10 begins to build the time point of pressure, but the time difference is too big, then reduces the 5th predetermined stroke L5, begins to build pressure to make concrete cylinder 10 in advance; If concrete cylinder 10 begins to build the time point of pressure prior to the time point that distributing valve 11 swings put in place, then increase the 5th predetermined stroke L5, to postpone making concrete cylinder 10 begin to build pressure.Certainly; This regulative mode is not unique; For example when said ride quality detection when there is compression shock in the hydraulic system of said pumping mechanism, controller 7 also can be through regulating the first predetermined stroke L1 and/or the 5th predetermined stroke L5 is optimized, other situation are also similar.
More preferably, said controller 7 also comprises updating block, and movement travel L1, L2, L3, L4 and L5 when this updating block is used for said the transmitting control signal after current working information and the adjusting are updated to said experts database.Thereby practice thrift follow-up adjustment process, improve the pumping efficiency and the ride quality of pumping mechanism.
On the other hand, the present invention also provides a kind of pump concrete pumping equipment, and this concrete pumping equipment comprises pumping mechanism as indicated above.
Also on the other hand; The invention provides a kind of controlling method of pumping mechanism; Said pumping mechanism comprises pumping cylinder 1, swing cylinder 2, first selector valve 3, second selector valve 4, main pump 5 and semirotary pump 6; Said main pump 5 drives said pumping cylinder 1 is also controlled said pumping cylinder 1 through said first selector valve 3 moving direction; Said semirotary pump 6 drives said swing cylinder 2 is also controlled said swing cylinder 2 through said second selector valve 4 moving direction; Wherein, said controlling method comprises control step: according to the movement travel of the piston rod of the piston rod of said pumping cylinder l and/or said swing cylinder 2, control said first selector valve 3 and 4 switching-overs of second selector valve and/or control said main pump 5 and change discharge capacities.
Pass through technique scheme; Because in control step; According to the movement travel of the piston rod of the piston rod of said pumping cylinder 1 and/or said swing cylinder 2, control said first selector valve 3 and 4 switching-overs of second selector valve and/or control said main pump 5 and change discharge capacities, during travel position when therefore regulating control main pump 5, first selector valve 3 and second selector valve 4 if desired; Need not dismounting near switch, therefore easy to operate, working efficiency is higher.
Preferably, in said control step, when the movement travel of the piston rod of said pumping cylinder 1 reaches the first predetermined stroke L1, make 3 switching-overs of said first selector valve.In said control step; When the movement travel of the piston rod of said pumping cylinder 1 reaches the second predetermined stroke L2; Make 4 switching-overs of said second selector valve, the said second predetermined stroke L2 is than the end of travel of the moving direction of the piston rod of the more approaching said pumping cylinder 1 of the said first predetermined stroke L1.This reversing mode can be confirmed according to the concrete form of first selector valve 2 and second selector valve 3 and the concrete pumping mode of pumping mechanism.For example as a kind of concrete mode of execution; Said first selector valve 3 is the three-position electromagnetic selector valve; When the movement travel of the piston rod of said pumping cylinder 1 reaches the said first predetermined stroke L1, make the selector valve 3 of winning be in meta, thereby main pump 5 stop to drive pumping cylinder 1.As a kind of concrete mode of execution; Said second selector valve 4 is the three-position electromagnetic selector valve; When the movement travel of the piston rod of said pumping cylinder 1 reaches the said second predetermined stroke L2, can so that said second selector valve 4 with got the electric different opposite side electromagnet of a side electromagnet last time and get.That is to say; Get electric (being positioned at position, a left side) if 4 last times of second selector valve are left side electromagnet, then now just make the right side electromagnet of second selector valve 4 get electric (being positioned at right position), vice versa; Thereby make the piston rod to-and-fro motion of swing cylinder 2, thereby make distributing valve 11 reciprocally swingings.The said first predetermined stroke L1 can confirm according to actual needs, is generally the value that approaches end of travel, sends commutation signal so that be reduced near zero the time in the movement velocity of the piston rod of pumping cylinder 1 to first selector valve 3.Simultaneously; The second predetermined stroke L2 also can confirm according to actual needs; Usually than the first predetermined stroke L2 more near the end of travel of the moving direction of the piston rod of pumping cylinder 1; (the trip difference is very little for progressive error between the first predetermined stroke L1 and the second predetermined stroke L2; For example can be several millimeters) can make second selector valve 4 after 3 switching-overs of first selector valve put in place, commutate again; Pressure surge to avoid during the switching-over of first selector valve 3, causing influences the switching-over of second selector valve 4, thereby farthest reduces the impact to pumping cylinder 1, make simultaneously distributing valve 11 can be under the almost immobilising state of material (for example concrete) the switch operating position.
In said control step, when the piston rod of said swing cylinder 2 arrives the 3rd predetermined stroke L3, make said first selector valve 3 commutate.This reversing mode can be confirmed according to the concrete form of first selector valve 2 and the concrete pumping mode of pumping mechanism.For example as a kind of concrete mode of execution; Said first selector valve 3 is the three-position electromagnetic selector valve; When the piston rod of said swing cylinder 2 arrives the 3rd predetermined stroke L3, make said first selector valve 3 with got the electric different opposite side electromagnet of a side electromagnet last time and get electric commutation signal.That is to say, get current potential in position, a left side if 3 last times of first selector valve are left side electromagnet, then now just make the right side electromagnet of the selector valve 3 of winning get current potential in right position, vice versa, thereby make the piston rod to-and-fro motion of pumping cylinder 1.
As indicated above; Before making win selector valve 3 and 4 switching-overs of second selector valve, reduce the discharge capacity of main pump 5 usually earlier, so that reduce the movement velocity of the piston rod of pumping cylinder 1; Thereby make the piston rod of pumping cylinder 1 can reduce movement velocity gradually, reduce impact pumping cylinder 1.Therefore preferably; As shown in Figures 2 and 3; In said control step; When the movement travel of the piston rod of said pumping cylinder 1 arrives the 4th predetermined stroke L4, make said main pump 5 reduce discharge capacities, said the 4th predetermined stroke L4 is than the end of travel of the said first predetermined stroke L1 further from the moving direction of the piston rod of said pumping cylinder 1.Can make main pump 5 reduce discharge capacity as required, make the movement velocity of piston rod of main pump pumping cylinder 1 reduce gradually, reduce impact pumping cylinder 1 by corresponding predetermined curve according to predetermined curve.
Swing cylinder 2 is provided with buffer cavity usually, after in piston rod movement to the buffer cavity of swing cylinder 2, can slow down gradually.Preferably; As shown in Figures 2 and 3; In said control step; When the movement travel of the piston rod of said swing cylinder 2 reaches the 5th predetermined stroke L5, make said main pump 5 improve discharge capacities, said the 5th predetermined stroke L5 than said the 3rd predetermined stroke L3 more near the end of travel of the moving direction of the piston rod of said swing cylinder 2.Thereby in time improve the movement velocity of the piston rod of pumping cylinder 1.Can make main pump 5 improve discharge capacity according to predetermined curve as required, the system that makes builds and presses and the piston rod action of promotion pumping cylinder 1.Said the 5th predetermined stroke L5 can confirm according to actual conditions, is generally and approaches zero value.As indicated above, the 5th predetermined stroke L5 is usually very near the end of travel of the moving direction of the piston rod of swing cylinder 2.
Preferably; This method is further comprising the steps of: in experts database, obtain the movement travel at piston rod place of piston rod and/or the said swing cylinder 2 of said pumping cylinder 1 when said first selector valve 3, second selector valve 4 or main pump 5 transmit control signal according to operating mode, said experts database is used to store the movement travel at piston rod place of piston rod and/or the said swing cylinder 2 of the said pumping cylinder 1 when said first selector valve 3, second selector valve 4 or main pump 5 transmit control signal of said controller 7 under the various working.Thereby can realize the automatic control of pumping mechanism.The occurrence of these predetermined stroke can be empirical value; Can be through test or emulation; Under various simulated conditions (comprising rate of pumping, pumping pressure etc.); Rationally regulate the value of each predetermined stroke L1, L2, L3, L4 and L5, make ride quality reach optimum, the value of L1, L2, L3, L4 and L5 corresponding under each simulated condition and this operating mode is stored in the experts database.Certainly, the 3rd predetermined stroke L3 and the 4th predetermined stroke L4 also can confirm through the design runlength of pumping cylinder 1 and swing cylinder 2, need not to be pre-stored in the experts database.The operating mode of pumping mechanism can comprise the induced pressure of pumping mechanism, desired rate of pumping (pumping gear) etc.
More specifically, this controlling method also comprises: the working condition acquiring step: gather current working information; And operating mode coupling step:, from said experts database, find out the movement travel when transmitting control signal with said work information is immediate according to the work information that said working condition acquiring step collects.
More preferably, this controlling method comprises that also ride quality detects step: the ride quality that detects said pumping mechanism; In said control step, the movement travel when regulating said transmitting control signal according to this ride quality is to optimize said ride quality.Because the complexity of actual conditions and the finiteness of test or emulated data; Canned data possibly can't cover all operating modes in the experts database; This empirical value can't guarantee that ride quality is optimum, so the empirical value of experts database storage can just be used for when actual pumpdown, providing initial value.Therefore, the movement travel when regulating said transmitting control signal according to this ride quality can be optimized said ride quality.
Can represent the parameter of the ride quality of pumping mechanism according to the actual conditions selection; For example, said ride quality can comprise: whether the piston the switching-over whether hydraulic system of said pumping mechanism exists the piston of compression shock, said pumping cylinder 1 whether to hit cylinder or pumping cylinder 1 not in place, said matees with the piston switching-over of said swing cylinder 2.The judgment mode of these performances is well known in the art, repeats no more at this.
Movement travel when regulating said transmitting control signal, this concrete regulative mode according to ride quality for example can for: when there is compression shock in the hydraulic system of said pumping mechanism, regulate the said second predetermined stroke L2; For example, when there is compression shock in the hydraulic system of pumping mechanism, then increase the second predetermined stroke L2,, reduce the compression shock of hydraulic system so that postpone 4 switching-overs of second selector valve; When there is not compression shock in the hydraulic system of pumping mechanism, then suitably reduce the second predetermined stroke L2, so that make 4 switching-overs of second selector valve in advance, improve the pumping efficiency of pumping mechanism.When the piston of said pumping cylinder 1 hits cylinder or when not in place, regulates the said first predetermined stroke L1; For example, when the piston of pumping cylinder 1 hits cylinder, then reduce the first predetermined stroke L1, so that make 3 times metas of first selector valve in advance, the possibility that the piston of minimizing pumping cylinder 1 hits cylinder; When the piston of pumping cylinder 1 is not in place, then increase the first predetermined stroke L1, so that postpone to make 3 times metas of first selector valve, reduce the piston possibility not in place of pumping cylinder 1.When the piston switching-over of the switching-over of the piston of said pumping cylinder 1 and said swing cylinder 2 does not match, regulate said the 5th predetermined stroke L5.Whether whether the do not match swing that embodied distributing valve 11 and the switching-over of concrete cylinder 10 of the piston switching-over of the switching-over of the piston of pumping cylinder 1 and said swing cylinder 2 matees, and this for example can judge through the time difference that swings between the time point that bit time point and concrete cylinder 10 begin to build pressure of distributing valve 11.Under the situation of optimum, the time point that concrete cylinder 10 begins to build pressure lags behind the time point that distributing valve 11 swings put in place slightly, but should the time difference more little good more.Therefore, lag behind the time point that distributing valve 11 swings put in place if concrete cylinder 10 begins to build the time point of pressure, but the time difference is too big, then reduces the 5th predetermined stroke L5, begins to build pressure to make concrete cylinder 10 in advance; If concrete cylinder 10 begins to build the time point of pressure prior to the time point that distributing valve 11 swings put in place, then increase the 5th predetermined stroke L5, to postpone making concrete cylinder 10 begin to build pressure.Certainly; This regulative mode is not unique; For example when there is compression shock in the hydraulic system that detects said pumping mechanism in the said ride quality detection step; Control step also can be through regulating the first predetermined stroke L1 and/or the 5th predetermined stroke L5 is optimized, and other situation are also similar.
More preferably, this controlling method also comprises step of updating: movement travel L1, L2, L3, L4 and L5 during with said the transmitting control signal after current working information and the adjusting are updated in the said experts database.Thereby practice thrift follow-up adjustment process, improve the pumping efficiency and the ride quality of pumping mechanism.
Carry out briefly bright with reference to Fig. 3 to the total working procedure of pumping mechanism that the preferred embodiment for the present invention provides below.At first, first selector valve 3 is in one of them working position (for example position, a left side), and second selector valve 4 is in one of them working position (for example position, a left side), thereby the piston rod of the piston rod of pumping cylinder 1 and swing cylinder 2 moves together.When piston rod movement to the four predetermined stroke of pumping cylinder 1, make main pump 5 reduce discharge capacities, thereby pumping cylinder 1 get into cushion stroke, the mainly deceleration under effect of inertia of the piston rod of pumping cylinder 1.When the movement travel of the piston rod that detects pumping cylinder 1 reaches the first predetermined stroke L1, make the selector valve 3 of winning be positioned at meta, thereby make the piston rod stop motion of pumping cylinder 1.When the movement travel of the piston rod that detects pumping cylinder 1 reaches the second predetermined stroke L2 (this moment, first selector valve 3 was accomplished commutation process basically); Make second selector valve 4 commutate (for example switching to right position), thereby make distributing valve 11 not have switch operating position under the mobile state of material (for example concrete).When piston rod movement to the three predetermined stroke L3 of swing cylinder 2; Make first selector valve, 3 switching-overs (for example switching to right position); Thereby make that the piston rod of pumping cylinder 1 can reversing motion (still because the discharge capacity of main pump 5 is very low at this moment, so the piston rod of pumping cylinder 1 is also almost motionless).Along with the piston rod of swing cylinder 2 gets into buffer cavity and retarded motion, when the movement velocity of the piston rod of swing cylinder 2 reaches the 5th predetermined stroke L5, make main pump 5 improve discharge capacity by predetermined curve, the system that makes builds and presses and promote the piston rod movement of pumping cylinder 1.Circulate with this, pumping mechanism is poured into the working position with material, and the impact of pumping cylinder is less, the harmony of the motion of pumping cylinder and distributing valve is better, thereby the overall performance of pumping mechanism is better.
Above-mentioned pumping mechanism and controlling method thereof can be applied to various pumping equipments, for example can be used for concrete pumping equipment, mud pumping equipment etc.
More than combine accompanying drawing to describe preferred implementation of the present invention in detail; But; The present invention is not limited to the detail in the above-mentioned mode of execution; In technical conceive scope of the present invention, can carry out multiple simple variant to technological scheme of the present invention, these simple variant all belong to protection scope of the present invention.
Need to prove that in addition each the concrete technical characteristics described in above-mentioned embodiment under reconcilable situation, can make up through any suitable manner.For fear of unnecessary repetition, the present invention is to the explanation no longer separately of various possible compound modes.
In addition, also can carry out combination in any between the various mode of execution of the present invention, as long as it is without prejudice to thought of the present invention, it should be regarded as the disclosed content of the present invention equally.
Claims (28)
1. pumping mechanism; This pumping mechanism comprises pumping cylinder (1), swing cylinder (2), first selector valve (3), second selector valve (4), main pump (5) and semirotary pump (6); Said main pump (5) drives said pumping cylinder (1) is also controlled said pumping cylinder (1) through said first selector valve (3) moving direction; Said semirotary pump (6) drives said swing cylinder (2) is also controlled said swing cylinder (2) through said second selector valve (4) moving direction; It is characterized in that; This pumping mechanism also comprises controller (7), and this controller (7) is according to the movement travel of the piston rod of the piston rod of said pumping cylinder (1) and/or said swing cylinder (2), sends commutation signal and/or sends to said main pump (5) and to become the discharge capacity signal to said first selector valve (3) and second selector valve (4).
2. pumping mechanism according to claim 1 is characterized in that, when the movement travel of the piston rod of said pumping cylinder (1) reached first predetermined stroke (L1), said controller (7) sent commutation signal to said first selector valve (3).
3. pumping mechanism according to claim 2; It is characterized in that; Said first selector valve (3) is the three-position electromagnetic selector valve; When the movement travel of the piston rod of said pumping cylinder (1) reached said first predetermined stroke (L1), said controller (7) sent to said first selector valve (3) and makes both sides electromagnet commutation signal of dead electricity all of said first selector valve (3).
4. pumping mechanism according to claim 2; It is characterized in that; When the movement travel of the piston rod of said pumping cylinder (1) reaches second predetermined stroke (L2); Said controller (7) sends commutation signal to said second selector valve (4), and said second predetermined stroke (L2) is than the end of travel of the moving direction of the piston rod of the more approaching said pumping cylinder (1) of said first predetermined stroke (L1).
5. pumping mechanism according to claim 4; It is characterized in that; Said second selector valve (4) is the three-position electromagnetic selector valve; When the movement travel of the piston rod of said pumping cylinder (1) reaches said second predetermined stroke (L2), said controller (7) to said second selector valve (4) send make said second selector valve (4) with got the electric different opposite side electromagnet of a side electromagnet last time and get electric commutation signal.
6. pumping mechanism according to claim 3 is characterized in that, when the piston rod of said swing cylinder (2) arrived the 3rd predetermined stroke (L3), said controller (7) sent commutation signal to said first selector valve (3).
7. pumping mechanism according to claim 6; It is characterized in that; Said first selector valve (3) is the three-position electromagnetic selector valve; When the piston rod of said swing cylinder (2) arrives the 3rd predetermined stroke (L3), said controller (7) to said first selector valve (3) send make said first selector valve (3) with got the electric different opposite side electromagnet of a side electromagnet last time and get electric commutation signal.
8. pumping mechanism according to claim 6; It is characterized in that; When the movement travel of the piston rod of said pumping cylinder (1) arrives the 4th predetermined stroke (L4); Said controller (7) sends the signal that reduces discharge capacity to said main pump (5), and said the 4th predetermined stroke (L4) is than the end of travel of said first predetermined stroke (L1) further from the moving direction of the piston rod of said pumping cylinder (1).
9. pumping mechanism according to claim 8; It is characterized in that; When the movement travel of the piston rod of said swing cylinder (2) reaches the 5th predetermined stroke (L5); Said controller (7) sends the signal that improves discharge capacity to said main pump (5), and said the 5th predetermined stroke (L5) is than the end of travel of the moving direction of the piston rod of the more approaching said swing cylinder (2) of said the 3rd predetermined stroke (L3).
10. according to any described pumping mechanism in the claim 1 to 9; It is characterized in that; Said controller (7) also comprises experts database, and this experts database is used to store the movement travel to the piston rod place of the piston rod of said first selector valve (3), second selector valve (4) or main pump (5) said pumping cylinder (1) when transmitting control signal and/or said swing cylinder (2) of said controller (7) under the various working.
11. pumping mechanism according to claim 10 is characterized in that, said controller (7) also comprises: the working condition acquiring unit that is used to gather current working information; And the operating mode matching unit, this operating mode matching unit is used for the work information that collects according to said working condition acquiring unit, from said experts database, finds out the movement travel when transmitting control signal with said work information is immediate.
12. pumping mechanism according to claim 10; It is characterized in that; Said controller (7) also comprises: the ride quality detection unit, and this ride quality detection unit is used to detect the ride quality of said pumping mechanism, and will represent the signal of this ride quality to send to said controller (7); Movement travel when said controller (7) transmits control signal according to the Signal Regulation of this representative ride quality is said is to optimize said ride quality.
13. pumping mechanism according to claim 12; It is characterized in that said ride quality comprises: whether the piston the switching-over whether hydraulic system of said pumping mechanism exists the piston of compression shock, said pumping cylinder (1) whether to hit cylinder or pumping cylinder not in place, said (1) matees with the piston switching-over of said swing cylinder (2).
14. pumping mechanism according to claim 13 is characterized in that, when said ride quality detection when there is compression shock in the hydraulic system of said pumping mechanism, said controller (7) is regulated said second predetermined stroke (L2); And/or hit cylinder or when not in place, said controller (7) is regulated said first predetermined stroke (L1) to the piston of said pumping cylinder (1) when said ride quality detection; And/or when said ride quality detection when the piston switching-over of the switching-over of the piston of said pumping cylinder (1) and said swing cylinder (2) does not match, said controller (7) is regulated said the 5th predetermined stroke (L5).
15. pumping mechanism according to claim 12; It is characterized in that; Said controller (7) also comprises updating block, and the movement travel when this updating block is used for said the transmitting control signal after current working information and the adjusting is updated to said experts database.
16. a concrete pumping equipment is characterized in that, this concrete pumping equipment comprises according to any described pumping mechanism in the claim 1 to 15.
17. the controlling method of a pumping mechanism; Said pumping mechanism comprises pumping cylinder (1), swing cylinder (2), first selector valve (3), second selector valve (4), main pump (5) and semirotary pump (6); Said main pump (5) drives said pumping cylinder (1) is also controlled said pumping cylinder (1) through said first selector valve (3) moving direction; Said semirotary pump (6) drives said swing cylinder (2) is also controlled said swing cylinder (2) through said second selector valve (4) moving direction; It is characterized in that; Said controlling method comprises control step: according to the movement travel of the piston rod of the piston rod of said pumping cylinder (1) and/or said swing cylinder (2), control the switching-over of said first selector valve (3) and second selector valve (4) and/or control said main pump (5) and change discharge capacity.
18. the controlling method of pumping mechanism according to claim 17 is characterized in that, in said control step, when the movement travel of the piston rod of said pumping cylinder (1) reaches first predetermined stroke (L1), makes said first selector valve (3) switching-over.
19. the controlling method of pumping mechanism according to claim 18; It is characterized in that; In said control step; When the movement travel of the piston rod of said pumping cylinder (1) reaches second predetermined stroke (L2), make said second selector valve (4) switching-over, said second predetermined stroke (L2) than said first predetermined stroke (L1) more near the end of travel of the moving direction of the piston rod of said pumping cylinder (1).
20. the controlling method of pumping mechanism according to claim 18 is characterized in that, in said control step, when the piston rod of said swing cylinder (2) arrives the 3rd predetermined stroke (L3), makes said first selector valve (3) commutate.
21. the controlling method of pumping mechanism according to claim 20; It is characterized in that; In said control step; When the movement travel of the piston rod of said pumping cylinder (1) arrives the 4th predetermined stroke (L4), make said main pump (5) reduce discharge capacity, said the 4th predetermined stroke (L4) is than the end of travel of said first predetermined stroke (L1) further from the moving direction of the piston rod of said pumping cylinder (1).
22. the controlling method of pumping mechanism according to claim 21; It is characterized in that; In said control step; When the movement travel of the piston rod of said swing cylinder (2) reaches the 5th predetermined stroke (L5), make said main pump (5) improve discharge capacity, said the 5th predetermined stroke (L5) than said the 3rd predetermined stroke (L3) more near the end of travel of the moving direction of the piston rod of said swing cylinder (2).
23. controlling method according to any described pumping mechanism in the claim 17 to 22; It is characterized in that; This method is further comprising the steps of: in experts database, obtain the movement travel to the piston rod place of the piston rod of said first selector valve (3), second selector valve (4) or main pump (5) said pumping cylinder (1) when transmitting control signal and/or said swing cylinder (2) according to operating mode, said experts database is used to store the movement travel to the piston rod place of the piston rod of said first selector valve (3), second selector valve (4) or main pump (5) said pumping cylinder (1) when transmitting control signal and/or said swing cylinder (2) of said controller (7) under the various working.
24. the controlling method of pumping mechanism according to claim 23 is characterized in that, this controlling method also comprises:
Working condition acquiring step: gather current working information; And
Operating mode coupling step:, from said experts database, find out the movement travel when transmitting control signal with said work information is immediate according to the work information that said working condition acquiring step collects.
25. the controlling method of pumping mechanism according to claim 23 is characterized in that, this controlling method comprises that also ride quality detects step: the ride quality that detects said pumping mechanism;
In said control step, the movement travel when regulating said transmitting control signal according to this ride quality is to optimize said ride quality.
26. the controlling method of pumping mechanism according to claim 25; It is characterized in that said ride quality comprises: whether the piston the switching-over whether hydraulic system of said pumping mechanism exists the piston of compression shock, said pumping cylinder (1) whether to hit cylinder or pumping cylinder not in place, said (1) matees with the switching-over of said swing cylinder (2).
27. the controlling method of pumping mechanism according to claim 26 is characterized in that, in said control step: when there is compression shock in the hydraulic system of said pumping mechanism, regulate said second predetermined stroke (L2); And/or hit cylinder or when not in place, regulate said first predetermined stroke (L1) when the piston of said pumping cylinder (1); And/or when the switching-over of the switching-over of the piston of said pumping cylinder (1) and said swing cylinder (2) does not match, regulate said the 5th predetermined stroke (L5).
28. the controlling method of pumping mechanism according to claim 25 is characterized in that, this controlling method also comprises step of updating: the movement travel during with said the transmitting control signal after current working information and the adjusting is updated in the said experts database.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210273378 CN102777364B (en) | 2012-08-02 | 2012-08-02 | Pumping mechanism, control method thereof and concrete pumping equipment |
| PCT/CN2012/086131 WO2014019313A1 (en) | 2012-08-02 | 2012-12-07 | Pumping mechanism and control method therefor, and concrete pumping equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201210273378 CN102777364B (en) | 2012-08-02 | 2012-08-02 | Pumping mechanism, control method thereof and concrete pumping equipment |
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| CN102777364B CN102777364B (en) | 2013-10-23 |
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| CN103267008A (en) * | 2013-05-13 | 2013-08-28 | 飞翼股份有限公司 | Piston type industrial pump pumping oil cylinder reversing buffer system and control method thereof |
| WO2014019313A1 (en) * | 2012-08-02 | 2014-02-06 | 中联重科股份有限公司 | Pumping mechanism and control method therefor, and concrete pumping equipment |
| CN103573728A (en) * | 2013-11-13 | 2014-02-12 | 中联重科股份有限公司 | Control equipment, method and system of hydraulic oil cylinder and engineering machinery |
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| CN104847642A (en) * | 2014-12-22 | 2015-08-19 | 北汽福田汽车股份有限公司 | Control method and control device for concrete pumping |
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| CN106979184A (en) * | 2017-05-18 | 2017-07-25 | 上海金泰工程机械有限公司 | Isolated underground hydraulic transmission system |
| CN109058085A (en) * | 2018-07-17 | 2018-12-21 | 三汽车制造有限公司 | pumping system control method and control device |
| CN109058085B (en) * | 2018-07-17 | 2020-06-12 | 三一汽车制造有限公司 | Pumping system control method and control device |
| CN110143841A (en) * | 2019-06-20 | 2019-08-20 | 保利民爆哈密有限公司 | A kind of on-site mixed explosive pumping system linkage mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102777364B (en) | 2013-10-23 |
| WO2014019313A1 (en) | 2014-02-06 |
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