CN108779767A - With double-piston pump transmission or the method and its double-piston pump of trandfer fluid or semi-fluid materials - Google Patents
With double-piston pump transmission or the method and its double-piston pump of trandfer fluid or semi-fluid materials Download PDFInfo
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- CN108779767A CN108779767A CN201780018269.4A CN201780018269A CN108779767A CN 108779767 A CN108779767 A CN 108779767A CN 201780018269 A CN201780018269 A CN 201780018269A CN 108779767 A CN108779767 A CN 108779767A
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- Prior art keywords
- piston
- plunger
- driving
- double
- control valve
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Classifications
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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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- 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
- F04B15/023—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 supply of fluid to the pump by gravity through a hopper, e.g. without intake valve
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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
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/002—Hydraulic systems to change the pump delivery
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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
- F04B9/109—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 plural pumping chambers
- F04B9/117—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 plural pumping chambers the pumping members not being mechanically connected to each other
- F04B9/1172—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 plural pumping chambers the pumping members not being mechanically connected to each other the movement of each pump piston in the two directions being obtained by a double-acting piston liquid motor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
Include with double-piston pump (1) transmission or the method for trandfer fluid or semi-fluid materials especially concrete or cement, the double-piston pump (1) the present invention relates to a kind of：Two conveying hydraulic cylinders (3,4), each hydraulic cylinder that conveys are arranged to inside with conveyor piston (5,6), and the conveyor piston (5,6) can be moved in a manner of alternately push-pull；Feed hopper (7) is used to receive the material to be transported fed by feed unit；Transmit guard system (13), it includes transmitting pipe (14), flowline or conveyance conduit can be connected to and can alternately be connect the flowline or conveyance conduit with one of the conveying hydraulic cylinder (3,4) by means of articulated mounting (17) by transmitting pipe (14), the articulated mounting (17) includes two rotations that can be hydraulically actuated or plunger case (45,47), and the rotational motion for transmitting pipe (14) is generated by the rotation or plunger case (45,47)；Conveyor piston driving mechanism (23), it includes the driving piston (19,21) of each conveyor piston (5,6) for being arranged in fluid power system (24), the driving piston (19,21) is connected to dedicated conveyor piston (5,6), wherein, two driving pistons (19,21) are all supplied by the delivery pump (39) being arranged in hydraulic circuit, and the supply can be controlled by valve；And main control valve (V5), it is controlled by main control valve (V5) to driving piston (19 accordingly, 21) alternate hydraulic pressure supply, the method is characterized in that, during the rotational motion for transmitting pipe (14), made to driving piston (19 by means of the main control valve (V5), 21) hydraulic pressure supply interrupts, and make the hydraulic circuit short circuit of delivery pump, and increase the output flow of delivery pump, so that after the rotational motion for transmitting pipe (14) is over and when next transport cycle starts, supply conveying hydraulic cylinder (5 is executed in a short time, 6) increased supply output, so as to cause the short-term increase of the fluid or semi-fluid materials of the supply.
Description
Technical field
The present invention relates to it is a kind of with double-piston pump transmission or trandfer fluid or semi-fluid materials method.In addition, of the invention
It is related to a kind of for transmitting or the double-piston pump of trandfer fluid or semi-fluid materials especially concrete or cement.
Background technology
Double-piston pump for the above purpose is well known in the art.According to 42 15 403 C2 of DE, it is used for
Transmission or the double-piston pump of trandfer fluid or semi-fluid materials especially concrete or cement are known as including two conveying liquid
Cylinder pressure, each hydraulic cylinder that conveys are arranged to inside with conveyor piston, those conveyor pistons can be moved in a manner of alternately push-pull
It is dynamic.Feed hopper is arranged for receiving the material to be transported fed by feed unit.Guard system (S-Weiche) is transmitted to wrap
Transmission pipe is included, flowline or conveyance conduit can be connected to by transmitting pipe, and can be by the flowing by means of articulated mounting
Pipeline or conveyance conduit are alternately connect with one of the conveying hydraulic cylinder, and the articulated mounting includes can be by hydraulically
Two rotating cylinders or plunger case of actuating, the rotational motion for transmitting pipe are generated by the rotating cylinder or plunger case.
Setting includes the conveyor piston driving mechanism of the driving piston for each conveyor piston in fluid power system,
The driving piston is connected to dedicated conveyor piston, wherein two driving pistons are all supplied by delivery pump, and the supply can
It is controlled by valve.Be provided with main control valve, by main control valve come to the alternate hydraulic pressure supply to corresponding driving piston into
Row control.In principle, double-piston pump has the shortcomings that following, during the converting motion for transmitting pipe, by fluid or semifluid
Material is transferred or conveyed in flowline there are gap, causes to feed unstable, that is, the pulsation of the material conveyed, this is in many
It is unfavorable in field, especially is used to cover the gunite concrete field of tunnel wall.
In order to compensate for the gap in conveying material requested, the double-piston pump of 42 15 403 C2 of DE proposes a kind of so-called
" pushing through (push over) " system.The system during the promotion cycle of piston by improving the speed of movable conveyor piston
Spend the material of the conveying to provide additional quantity at once.
Although this " pushing through " system provides the better performance of double-piston pump, certain pulsation still can not be kept away
Exempt from.This is especially as caused by the not transported fact of the transition period material for transmitting pipe.
92 17 574 U1 of DE are also disclosed a kind of is with double-piston pump transmission or trandfer fluid or semi-fluid materials
System, the double-piston pump include：Two conveying hydraulic cylinders, each conveying hydraulic cylinder, which is arranged to inside, has conveyor piston, described
Conveyor piston can be moved in a manner of alternately push-pull；Feed hopper, the feed hopper be used to receive by waiting for of feeding of feed unit by
The material of conveying；Guard system is transmitted, which includes transmitting to manage, which can be connected to fluid line or conveying
Pipeline and by means of articulated mounting can by the flowline or conveyance conduit alternately in the conveying hydraulic cylinder
One connects, and the articulated mounting includes two rotations that can be hydraulically actuated or plunger case, the rotation for transmitting pipe
Movement is generated by the rotation or plunger case；Conveyor piston driving mechanism, the conveyor piston driving mechanism include for being arranged
The driving piston of each conveyor piston in fluid power system, the driving piston are connected to dedicated conveyor piston, wherein
Two driving pistons are all supplied by the delivery pump being arranged in hydraulic circuit, and the supply can be controlled by valve；And control
Valve, by control valve come to being controlled to the alternate hydraulic pressure supply of corresponding driving piston, wherein the control valve is suitable for
The hydraulic circuit of delivery pump is set to be shorted in reservoir.
Double-piston pump is also shown in 43 18 267 A1 of DE, wherein the hydraulic circuit for driving two rotations or plunger case
It can be short-circuited between delivery pump and reservoir.
Invention content
It is especially with double-piston pump transmission or trandfer fluid or semi-fluid materials therefore, the purpose of the present invention is to provide a kind of
The method of concrete or cement, this method provides higher performance and in particular, reduce transmit pipe conversion time.This
The another object of invention is to provide a kind of double-piston pump, especially executes the double-piston pump of this method.
According to the present invention, the transition period is carried out in the rotational motion by transmitting pipe, by means of the main control valve make to
It drives the hydraulic pressure supply of piston to interrupt, and makes the hydraulic circuit short circuit of delivery pump, and increase the output stream of delivery pump
Amount so that after the rotational motion for transmitting pipe is over and when next transport cycle starts, execute in a short time
The increased supply output of supply conveying hydraulic cylinder, so as to cause the short-term increasing of the fluid or semi-fluid materials of the supply
Add.
Stated differently, since the short circuit of delivery pump, drives the hydraulic cylinder of piston to be no longer under pressure and transmits pipe
Switching motion can be executed with highest speed and shortest time, and the increase of the output flow due to delivery pump, to phase
The hydraulic cylinder answered provides the supply of increased oil, causes the short-term increase of the fluid or semi-fluid materials of the supply, makes
Obtain the pulsation for the material for avoiding or almost avoiding supply in operation.
According to the present invention, after the short-term increase of the supply output of delivery pump, the supply output reduces again to obtain
Obtain the constant supply of fluid or semi-fluid materials.
Additionally, there are the advantages of be, control the main control valve by means of auxiliary or pilot control valve, wherein
Transmit the mobile period of pipe, the main control valve and the pilot control valve be both in rest position or neutral position or in
Between position.
Another advantage is that each rotation or plunger case include moveable driving element or plunger, when driving element or
Plunger is damped effect when reaching final shift position.
Rotation or the action of plunger case execute within the shortest time, and therefore, with driving element or the maximum of plunger
Speed execute.This results in the need for the movement to the driving element or plunger and is rapidly braked.Due to hindering movement
Buddhist nun acts on, therefore the risk for destroying rotation or plunger case substantially reduces.
In addition, the advantage is that when to the moveable driving element or plunger system of the rotation or plunger case
When dynamic, the moveable driving element or plunger are prestressed in the opposite direction, and the prestressing force provides energy storage,
The especially storage of kinetic energy.
Additionally, there are the advantages of be, it is described rotation or plunger case the moveable element or plunger it is next
Forward or during promotion stroke, the energy of storage is resumed so that the energy of recovery extraly makes described removable
Driving element or plunger accelerate.Therefore, it can be further decreased for converting the time of transmission pipe, so that system is negative
Face pulsation greatly reduces.
The invention further relates to transmission or the double-piston pumps of trandfer fluid or semi-fluid materials especially concrete or cement.Root
According to the present invention, double-piston pump is characterized in that, the double-piston pump is configured so that during the rotational motion for transmitting pipe, described
Main control valve interrupts the hydraulic pressure supply to driving piston, the spy of double-piston pump by making the hydraulic circuit short circuit of delivery pump
Sign also resides in, and delivery pump is configured to after the rotational motion for transmitting pipe terminates and when next transport cycle starts short-term
Interior increase output flow.
In addition, this short-term increase of the material by the supply, during the rotational motion for transmitting pipe, between conveying
Gap can be filled at once then so that the fairly constant conveying of material is without pulsing.
The advantage is that each rotation or plunger case include moveable driving element especially plunger, it is moveable to drive
Element can be forward or to stretch out and stroke and move backward or in a manner of retraction stroke, wherein the moveable driving is first
Part or plunger are at least damped effect when reaching the terminal position of retraction stroke.
In addition, each rotation or plunger case include the piston filled with gaseous material and against the spring of the piston effect
Group is braked so as to cause to moveable driving element or plunger so that the movement of the driving element or plunger can be with
It is damped effect, avoids the damage to transmitting guard system.
In addition, the advantage is that carrying out the braking phase in the moveable driving element or plunger to the rotation or plunger case
Between, the moveable driving element or plunger provide pretension or prestressing force for the groups of springs and/or the piston,
In, execute the storage of energy storage, especially kinetic energy.
This advantageously causes following result：Rotation or plunger case moveable driving element or plunger it is next forward
During stroke, the energy of storage is resumed so that the energy of storage extraly makes the moveable driving element or column
Plug accelerates.
Description of the drawings
With reference to attached drawing, according to described below or the preferred embodiments of the present invention, other details, feature and advantage will become
It obtains obviously.In the accompanying drawings：
Fig. 1 shows the stereogram of an embodiment of double-piston pump according to the present invention；
Fig. 2 shows the block diagrams of hydraulic valve bank conveying；
Fig. 3 shows the block diagram for the hydraulic valve bank for transmitting guard system (S-Weiche)；
Fig. 4 shows the block diagram of the conventional drug delivery pump system for example produced by doctor's Rexroth (Bosch Rexroth)；
Fig. 5 show tool there are two rotation or plunger case transmission guard system rearview, the transmission guard system from
One conveying hydraulic cylinder is placed in intermediate position during turning to another conveying hydraulic cylinder；
Fig. 6 show the left side of Fig. 5 rotation or plunger case when stretching out mobile start, i.e. the sectional view of retracted position；
Fig. 7 shows the sectional view that its maximum projecting position is according to the rotation in the left side of Fig. 6 or plunger case；
Fig. 8 show according to the rotation in the left side of Fig. 6 or plunger case during its retraction is mobile just damping action it
Preceding sectional view；
Fig. 9 shows the sectional view that rotation or plunger case according to the left side of Fig. 6 retract at the same time during dampening action.
In the accompanying drawings, identical element is referred to identical reference numeral.Attached drawing shows the preferred implementation of the present invention
Mode.However, can also be by being retouched in such as claim the present invention is not limited to the embodiment and alternative embodiment
The theme covering stated.
Specific implementation mode
Fig. 1 shows double-piston pump 1 in a schematic manner, and basic configuration is known in the art.Double-piston pump 1 wraps
Conveying hydraulic cylinder 3 and 4 is included, conveyor piston 5 and 6 is able to move in conveying hydraulic cylinder 3 and 4.Double-piston pump 1 includes charging
Bucket 7, feed hopper 7 include shell 10, and back panel 8 is provided in the rear portion side of shell 10.According to charging arrow A9, wait for by dual-active
The material of 1 distribution of plug pump is fed in feed hopper 7.The material being fed in feed hopper 7 is not shown in Fig. 1.
It is fixed on back panel 8 and transmits guard system (S-Weiche) 13, it includes transmitting pipe 14 to transmit guard system 13, is transmitted
The opening 12 that pipe 14 will alternately be connected to the opening 11 being connect with conveying hydraulic cylinder 3 and be connect with conveying hydraulic cylinder 4.According to double
Arrow 16 transmits pipe 14 and is rotated between opening 11 and opening 12 by rotating bar 15, and rotating bar 15 is affixed to back panel 8
The formation part of articulated mounting 17.In Fig. 1, articulated mounting 17 is not shown completely, but is further retouched with reference to Fig. 5 to Fig. 9
It states.
As shown in Figure 1, the material being fed in feed hopper 7 according to arrow A is inhaled by the retraction movement of conveyor piston 6
Enter into conveying hydraulic cylinder 4, as arrow B is schematically shown.
Meanwhile including tube portion 20 rotating bar 15 be in opening 11 before position, by delivery pipe 14 with conveying hydraulic cylinder 3
Connection.Conveyor piston 5 is moved along forward direction towards back panel 8 so that forward material is fed to delivery pipe according to arrow C
To be assigned during operation in road (not shown).
Conveying hydraulic cylinder 3 and 4 at one end on be fixed to back panel 8, and convey hydraulic cylinder 3 and 4 the rear part ends and hold
It receives in the housing 22.As described below and not shown in FIG. 1, conveyor piston 5 and 6 is respectively by driving piston 19 and 21
(referring to Fig. 2) driving, driving piston 19 and 21 are driven by hydraulic system 24, as shown in Figure 2.
It can be described below according to the operation mode of the double-piston pump 1 of Fig. 1.Conveyor piston 5 as shown in Figure 1 is in its pump
It send or conveys in stroke, conveying hydraulic pressure will be drawn into from feed hopper by opening 11 towards back panel 8 along forward direction
Material in cylinder 3, which compels to be pressed onto, to be transmitted in pipe 14, according to arrow C.In order to provide the company transmitted between pipe 14 and conveying hydraulic cylinder 3
It connects, articulated mounting 17 makes the tube portion 20 before rotating bar 15 and especially opening 11 rotate, to provide conveying hydraulic cylinder 3 and transmit
Connection between pipe 14.
When conveyor piston 5 has arrived at its forward most position, i.e., all material or basic that is provided by conveying hydraulic cylinder 3
When upper all material is had been assigned in transmission pipe 14, start articulated mounting 17 so that rotating bar 15 is rotated according to double-head arrow 16
The position of the opening 12 of conveying hydraulic cylinder 4 is connected to covering, the conveying hydraulic cylinder 4 is during the pumping stroke of conveyor piston 5
It is filled with material by the suction stroke of conveyor piston 6 according to arrow B.
During the rotational motion of rotating bar 15, the conveyor piston driving mechanism 23 that will be described in more detail referring to Fig. 2
The suction stroke of conveyor piston 6 is changed to and pushes stroke and at the same time the promotion stroke alteration of conveyor piston 5 is lived at conveying
The suction stroke of plug 5.The end of suction stroke is had arrived in conveyor piston 5 and conveyor piston 6 has arrived at promotion stroke
End after, articulated mounting 17 makes the rotating bar 15 12 be moved to opening 11 from opening again, to convey hydraulic cylinder 3
It is connected to and transmits pipe 14.
Referring now to Fig. 2, Fig. 2 shows the conveyor piston driving mechanisms 23 for including fluid power system 24.
As shown in Figure 2, piston 19 and driving piston 21 is driven routinely to be constructed.Drive piston 19 and driving piston
Both 21 have the configuration of two-way ram.Driving piston 19 includes the piston top 25 being contained in hydraulic pressure cylinder housing 27.From
Piston top 25 protrudes piston rod 29, and piston rod 29 is connected to such as conveyor piston 5.Similarly, driving piston 21 includes
The piston top 31 being contained in hydraulic pressure cylinder housing 33.Piston top 31 is connected to piston rod 35 outstanding, and piston rod 35 is connected to example
Such as conveyor piston 6.When fluid power system 24 is activated, piston 25 and 31 is with piston rod 29 and 35 together along corresponding direction
It is mobile so that conveyor piston 5 and conveyor piston 6 as shown in Figure 1 are moved along corresponding direction.
With reference to Fig. 2, the fluid power system 24 of the present invention will be explained in more detail.Pipeline A is used for being sent into
Carry out the pipeline of the oil of delivering concrete or other materials, and it is connected to pump.Pipeline B is that oil returns to reservoir (not shown)
In pipeline.Valve V3 is Direct Action Type three-position four-way electromagnetic directional valve to guide pilot-operated type three position four-way directional control valve V5.Valve V4 is
Check valve.Valve V5 is main control valve, and valve V5 is hydraulically actuated by valve V3 and includes the centre position of locking.In the interposition
It sets, pipeline A and pipeline B are short-circuited.Therefore, it is always occurred from valve V5 via the maximum pump pressure of pipeline A transmission.
Valve V6 is check valve, and in high-pressure pump for during removing the operation of swing (rock cleaning), being used as back
Flow preventing member.Valve V7 is the capacity control unit for bar side oil inlet, and provides backhaul hydraulic cylinder, the backhaul hydraulic cylinder ratio
Hydraulic cylinder is driven forwards slightly soon and as the compensation of oily conveyance loss.Therefore, the suction stroke of corresponding conveyor piston 5 or 6
1 point a little earlier always terminated than other each promotion strokes for conveying hydraulic cylinders 6 or 5.This illustrates when turn for transmitting guard system
When changing completion, corresponding conveying hydraulic cylinder, which is fully prepared, to be started to push stroke.
Valve V8 is check valve, and the backhaul obstruction as piston rod side oil inlet.Valve V9 is the pressure reducing valve of bar side oil inlet,
And valve V16 is the adjustment valve (shuffle valve) for bar side oil inlet A.
Main control valve V5 can very fast be activated by solenoid valve V3, because small pressure is only needed to increase.Pipeline T will be controlled
Hydraulic fluid processed is expelled to reservoir (not shown) from valve V3.
When master control pilot valve operation valve V5 moves right, then piston 21 is driven to be activated when piston 31 is pushed,
Cause the promotion stroke of corresponding conveyor piston 6.When driving the promotion stroke of piston 21 to complete, during main control valve V5 is moved to
Between position to make feed line A and pipeline B short circuits, cause big advantage and be the energy when main control valve V5 to be moved to the left
Enough obtain the total pressure in pipeline A so that oil is fed to driving hydraulic cylinder 19 now, immediately begins to make driving hydraulic cylinder 19
It is mobile.During the centre position of valve V5, hydraulic pump is converted to increased pump power.When valve V5 is converted to next operating position
When, increased hydraulic pressure is transferred into drives forwards hydraulic cylinder accordingly, so as to cause the increased actuating speed of piston.This
Cause the increased feeding into the material for transmitting pipe 14.
Fig. 4 shows the block diagram for the conventional pumping mechanism 39 sold by doctor's Rexroth company.It can be seen that pumping machine
Structure is driven by electro-motor 41.Electro-motor 41 drives in the pump action to pipeline A of oil.Because the pumping system is conventional
And the part for not forming the present invention, so further describing for the pumping system is omitted.
The hydraulic system of the transmission guard system 13 (S-Weiche) of the present invention is shown referring now to Fig. 3.
The preparation of hydraulic system 43 acts on rotation or plunger case 45 and 47.Those rotations or plunger case 45,47 are double croppings
, as shown in Figure 3.However, rotation or plunger case 45 and 47 are only symbolically shown, and will be below in reference to Fig. 6 extremely
Fig. 9 is explained in more detail.
The component of hydraulic system 43 is as follows.Valve V2 is arranged to the check valve of backhaul obstruction, hinders reservoir discharge.
Valve V3 is throttle orifice (Blende) for controlling the discharge of reservoir as stop valve V4.Valve V4 is for being expelled to reservoir
The solenoid valve of (not shown).
Valve V7 is pressure reducing valve makes the operating pressure that transmission guard system 13 acts as shown in Figure 1 for reducing.Valve V9
It is the maximum pressure that pressure-control valve transmits guard system 13 for limitation.Unit V10 is flow control or volume control unit
For adjusting the volume of the oil for clean operation.
Valve V12 is that solenoid valve transmits guard system 13 for starting.Valve V15 is also throttle orifice (Blende) for limitation
Volume is with control valve V24 and V25 respectively.Valve V20 is the double check valve that can be unlocked, and valve V20 drives forwards hydraulic cylinder B's
(forerun) and during the backhaul of hydraulic cylinder A it is activated.Valve V21 is the double check valve that can be unlocked, and valve V21 is hydraulic cylinder A's
It drives forwards and is activated with during the backhaul of hydraulic cylinder B.Valve V22 is the double check valve that can be unlocked, and valve V22 is hydraulic cylinder B's
It drives forwards and is activated with during the backhaul of hydraulic cylinder A.Valve V23 is the double check valve that can be unlocked, and valve V23 is hydraulic cylinder A's
It drives forwards and is activated with during the backhaul of hydraulic cylinder B.Valve V24 is solenoid valve driving forwards for startup hydraulic cylinder B, and
Valve V25 is solenoid valve driving forwards for startup hydraulic cylinder A.
In addition, being provided with hydraulic accumulator 49 to provide the instantaneous hydraulic power of sufficient amount when converting.
The specific symbol of specific configuration system shown in Fig. 2 to Fig. 4 of all valves obtains, but is not limited to
This.The different embodiments of identical or almost the same effect are caused to still fall within the scope of the present invention.From Fig. 2 to Fig. 4,
The connecting pipeline between component can clearly be obtained and be no longer explained in greater detail.
With reference to Fig. 5, it is explained in more detail to transmitting guard system 13.Fig. 5 is regarding of being seen behind feed hopper 7
Figure, Fig. 5, which is shown, transmits the centre position that guard system 13 is between opening 11 and opening 12.The tube portion of rotating bar 15 20
Between opening 11 and opening 12, and both rotation or plunger case 45 and 47 are also in centre position.It will be with reference to Fig. 6 to figure
9 pairs of rotations or plunger case 45 and 47 are explained in more detail.
As it is seen from fig 5 that in the present embodiment, it includes plate 37 to transmit guard system 13, opening 11 and 12 is located at plate
In 37.It includes two arms 51 and 52 to transmit guard system 13.Arm 51 is provided with bearing 54 to be pivotally supported rotation or plunger case
45, and arm 52 is provided with bearing 56 for being pivotally supported rotation or plunger case 47.Two rotations or plunger case 45 and 47 are all
It is as pivotally connected to control panel 53 in its other end, control panel 53 is connected to rotating bar 15 to make rotating bar 15 in turn
It is moved to another opening 12,11 from an opening 11,12.Rotation or plunger case 45 and 47 to driving are not shown in Figure 5 to revolve
Turn or the connection of the hydraulic system 43 of plunger case 45 and both 47.It is not shown and is such as shown in very simple Fig. 1 in Figure 5
Back panel.
Referring now to Fig. 6 to Fig. 9, wherein show that rotation or plunger case 47 exist in a manner of the sectional view partly blocked
During movement be in different positions, in order to provide the required movement of rotating bar 15 with will transmit pipe 14 alternately with opening
11 and 12 connections.Rotation or plunger case 45 are correspondingly constructed.
Rotation or plunger case 47 include cylinder body or shell 55, the setting of hydraulic oil inlet/outlet 57 in cylinder body or shell 55
One end of hollow shell 55 in the part of rotation or plunger case 47.In shell 55, being provided with can be in shell 55
The plunger 59 of interior movement.
Plunger 59 is partially formed to hollow body to which several particular elements are contained in inside.It is provided with for example with layer
The groups of springs 61 of folded disc spring form.The purpose realized by the present invention is that the rotation for transmitting pipe is provided within the shortest time
Movement, can keep executing large number of stroke for a long time in this way.In plunger 59, it is provided with gas access/go out
The gas pistons 63 of 65 filling of mouth, are provided with check valve 66, wherein gas passes through internal pipeline in gas access/outlet 65
67 are directed into gas piston 63.For sealed plunger 59, it is provided with sealing element 69 and the sealing element 69 is prevented for sealing
Oil leakage goes out except shell 55.
By opening 71, the shell 55 of rotation or plunger case 47 can be connected to arm 52 (referring to Fig. 5), and pass through opening
73, plunger 59 can be connected to median plate 53.
The traverse feed end of plunger 59 is provided with feeding ejection section 60, which includes access road, this enters
Mouth channel includes check valve 64.Check valve 64 is partially housed in foreboard 70, with lateral in the hydraulic fluid of plunger 59 or oil
Hollow plunger 59 is closed at feed end.In the retracted position of Fig. 6, grease chamber is provided between gas piston 63 and foreboard
68, the grease chamber 68 is in this position full of oil.Foreboard 70 is provided with opening or nut such as castellated nut.In order to which oil is filled
It enters the room in 68, oily feed throughs 62 pass through check valve 64, during check valve 64 prevents oil from the dissipation of room 68 back to channel 62.
Rotation or plunger case 47 are shown with four kinds of different positions.Fig. 6 shows complete before the stroke of plunger 59
Retracted position.Fig. 7 shows hydraulic cylinder extended position, wherein plunger 59 has arrived at its maximum projecting position.Fig. 8 is shown
Position and Fig. 9 during the retraction movement of plunger 59 just before dampening action starts show the resistance for executing plunger
The position when pneumatic accumulator that Buddhist nun acts on and load restores for energy.
In fig. 7 it is shown that plunger case 47 is in 59 maximum projecting position of plunger.Oil is fed through oil-in 57, to
Urge the retracted position that ejection section 60 moves away plunger 59.When plunger 59 moves away its retracted position being shown in FIG. 6
When, gas piston 63 compels pressure oil and leaves room 68 to be emitted to hollow space left part by the opening (not shown) of foreboard 70.Gas
Piston 63 compels pressure oil to be dissipated from room 68, until the gas piston 63 as shown in Figure 7 abuts foreboard 70.
According to Fig. 8, show that plunger 47 is in the position when the damping action of plunger 47 starts during retraction movement.
Ejection section 70 reaches in oil-in channel 58 and urges the opening of check valve 64.The oil in room 72 is urged to move through simultaneously
The opening of foreboard 70 and reload room 68, to make gas piston 63 towards groups of springs 61 move.Which increase gas pistons
63 load on spring.
Fig. 9 shows the position of the plunger 47 before the retraction end position that horse back reaches Fig. 6.Grease chamber 68 is by partly
It fills and grease chamber 72 further decreases.
Among plunger 47 according to the present invention, it is provided with damping system, is hindered when plunger 47 is moved to its retracted position
Damping system is to plunger damping action, and the energy and groups of springs stored by gas piston 63 during next stroke of plunger 47
21 are used to that the movement of plunger 47 be made to accelerate together.
Among the present invention, it is provided with double-piston pump, fluid is realized by double-piston pump or semi-fluid materials are especially
The substantially constant of concrete or cement conveys, the shortcomings that overcome the prior art.Particularly, include the rotation of damping system
Or the very short movement of plunger case 45 and 47 prevents plunger 59 to be resisted against the hard adjoining of shell 55.
Reference numeral：
1- double-piston pumps
3- conveys hydraulic cylinder
4- conveys hydraulic cylinder
5- conveyor pistons
6- conveyor pistons
7- feed hoppers
8- back panels
9- feeds arrow A
10- shells
11- is open
12- is open
13- transmits guard system (S-Weiche)
14- transmits pipe
15- rotating bars
16- double-head arrows
17- articulated mountings
19- drives piston
20- pipes branch
21- drives piston
22- shells
23- conveyor piston driving mechanisms
24- fluid power systems
25- piston tops
27- hydraulic pressure cylinder housings
29- piston rods
31- piston tops
33- hydraulic pressure cylinder housings
35- piston rods
37- plates
39- pumping mechanisms
41- electro-motors
43- hydraulic systems
45- rotates or plunger case
47- rotates or plunger case
49- is used to provide the hydraulic accumulator of the instantaneous hydraulic power of sufficient amount in conversion
51- arms
52- arms
53- median plates
54- bearings
55- cylinder bodies
56- bearings
57- hydraulic oil inlets/outlet
59- plungers
60- is fed and discharge ejection section
61- groups of springs
62- access roades
63- gas pistons
64- check valves
The gas accesses 65-/outlet
66- check valves
67- internal gas pipelines
68- grease chambers
69- sealing elements
70- foreboards
71- is open
72- grease chambers
73- is open
List of parts in hydraulic circuit：
1.Hydraulic drive mechanism (Fig. 2)：
A：Oil inlet for delivering concrete
B：The backhaul of oil from delivering concrete
V3：Direct Action Type 3-position 4-way electromagnetic switch pilot valve for guiding V5
V4：Check valve
V5：Master control 3-position 4-way pilot reversing valve for the hydraulic starting for conveying pre-selection driving A
V6：It is used to remove the reflux preventing member started during the operation swung in high-pressure pump
V7：(backhaul hydraulic cylinder ratio drives forwards hydraulic cylinder and is slightly used in combination soon the capacity control unit of bar side oil inlet for oil
Make the compensation of oily conveyance loss)
V8：The backhaul obstruction of check valve and bar side oil inlet
V9：The pressure reducing valve of bar side oil inlet
V16：For bar side oil inlet A's and for bar side oil inlet B adjustment valve
2. transmitting the hydraulic drive mechanism (Fig. 3) of guard system：
P：Pumping line and connection to fluid pump (in the system be not used)
T：Return to the connection of reservoir
V2：Hinder the check valve (backhaul obstruction) of reservoir discharge
V3：Throttle orifice (Blende) for the discharge of control reservoir as stop valve V4
V4：Solenoid valve for being expelled to reservoir
V7：Pressure reducing valve for reducing the operating pressure for making transmission guard system act
V9：Pressure-control valve for limiting the maximum pressure for transmitting guard system
V10：The flow control of volume for adjusting the oil for being used for clean operation or volume control unit
V12：For starting the solenoid valve for transmitting guard system
V15：For restricted volume with the throttle orifice (Blende) of control valve 24 and valve 25 respectively
V20：The double check valve unlocked started during the backhaul for driving forwards hydraulic cylinder B and hydraulic cylinder A
V21：In the double check valve unlocked for driving forwards with starting during the backhaul of hydraulic cylinder B of hydraulic cylinder A
V22：In the double check valve unlocked for driving forwards with starting during the backhaul of hydraulic cylinder A of hydraulic cylinder B
V23：In the double check valve unlocked for driving forwards with starting during the backhaul of hydraulic cylinder B of hydraulic cylinder A
V24：The solenoid valve driven forwards for starting hydraulic cylinder B
V25：The solenoid valve driven forwards for starting hydraulic cylinder A
Claims (12)
1. a kind of for transmitting or the method for trandfer fluid or semi-fluid materials, the fluid or semi-fluid materials especially coagulation
Soil or cement, the method include by means of double-piston pump (1), the double-piston pump (1)：
Two conveying hydraulic cylinders (3,4), each hydraulic cylinder that conveys are arranged to inside with conveyor piston (5,6), and the conveying is lived
Plug (5,6) can be moved in a manner of alternately push-pull；
Feed hopper (7), the feed hopper (7) is for receiving the material to be transported fed by feed unit；
Guard system (13) is transmitted, the transmission guard system (13) includes transmitting pipe (14), and the transmission pipe (14) can be connected to
Flowline or conveyance conduit and can by means of articulated mounting (17) by the flowline or conveyance conduit alternately with
One of described conveying hydraulic cylinder (3,4) connects, and the articulated mounting (17) includes two rotations that can be hydraulically actuated
Turn or plunger case (45,47), the rotational motion for transmitting pipe (14) are generated by the rotation or plunger case (45,47)；
Conveyor piston driving mechanism (23), the conveyor piston driving mechanism (23) include in fluid power system (24)
The driving piston (19,21) for each conveyor piston (5,6) being arranged, the driving piston (19,21) are connected to dedicated described
Conveyor piston (5,6), wherein two driving pistons (19,21) are all supplied by the delivery pump (39) being arranged in hydraulic circuit, institute
Stating supply can be controlled by valve；And
Main control valve (V5) controls the alternate hydraulic pressure to driving piston (19,21) accordingly by the main control valve (V5)
Supply,
The method is characterized in that,
During the rotational motion for transmitting pipe (14)：
So that the hydraulic pressure supply to the driving piston (19,21) is interrupted by means of the main control valve (V5), and makes institute
The hydraulic circuit short circuit of transfer tube is stated, and
Increase the output flow of the delivery pump,
So that after the rotational motion for transmitting pipe (14) is over and when next transport cycle starts, short-term
The interior increased supply output for executing supply conveying hydraulic cylinder (5,6), so as to cause the fluid or semi-fluid materials of the supply
Short-term increase.
2. according to the method described in claim 1, it is characterized in that, the delivery pump supply output increase in short term it
Afterwards, the supply output reduces again.
3. method according to claim 1 or 2, which is characterized in that control the master by means of pilot control valve (V3)
Control valve (V5), wherein during the movement for transmitting pipe (14), the main control valve (V5) and the pilot control valve
(V3) all in rest position or neutral position or centre position.
4. method according to any one of claims 1 to 3, which is characterized in that each rotation or plunger case (45,47)
Including moveable driving element or plunger (59), when the moveable driving element or plunger (59) reach final mobile position
Effect is damped when setting.
5. according to the method described in claim 4, it is characterized in that, when can to the rotation or the described of plunger case (45,47)
When mobile driving element or plunger (59) are braked, the moveable driving element or plunger (59) are in the opposite direction
By Prestressing, the prestressing force provides the storage of energy storage, especially kinetic energy.
6. according to the method described in claim 5, it is characterized in that, it is described rotation or plunger case (45,47) it is described removable
During next forward stroke of dynamic driving element or plunger (59), the energy of storage is resumed so that the energy restored
Amount extraly accelerates the moveable driving element or plunger (59).
7. a kind of double-piston pump (1), the double-piston pump (1) is for transmission or trandfer fluid or semi-fluid materials especially coagulation
Soil or cement, the double-piston pump (1) include：
Two conveying hydraulic cylinders (3,4), each hydraulic cylinder that conveys are arranged to inside with conveyor piston (5,6), and the conveying is lived
Plug (5,6) can be moved in a manner of alternately push-pull；
Feed hopper (7), the feed hopper (7) is for receiving the material to be transported fed by feed unit；
Guard system (13) is transmitted, the transmission guard system (13) includes transmitting pipe (14), and the transmission pipe (14) can be connected to
Flowline or conveyance conduit and can by means of articulated mounting (17) by the flowline or conveyance conduit alternately with
One of described conveying hydraulic cylinder (3,4) connects, and the articulated mounting (17) includes two rotations that can be hydraulically actuated
Turn or plunger case (45,47), the rotational motion for transmitting pipe (14) are generated by the rotation or plunger case (45,47)；
Conveyor piston driving mechanism (23), the conveyor piston driving mechanism (23) include in fluid power system (24)
The driving piston (19,21) for each conveyor piston (5,6) being arranged, the driving piston (19,21) are connected to dedicated described
Conveyor piston (5,6), wherein two driving pistons (19,21) are all supplied by the delivery pump (39) being arranged in hydraulic circuit, institute
Stating supply can be controlled by valve；And
Main control valve (V5) controls the alternate hydraulic pressure to driving piston (19,21) accordingly by the main control valve (V5)
Supply,
It is characterized in that,
The double-piston pump (1) be configured so that it is described transmit pipe (14) rotational motion during, the main control valve (V5)
Pass through the hydraulic pressure supply for making the hydraulic circuit short circuit of the delivery pump to interrupt to the driving piston (19,21)；And
The delivery pump is configured to after the rotational motion for transmitting pipe (14) terminates and in next transport cycle
Increase output flow when beginning in a short time.
8. duplex plunger pump according to claim 7, which is characterized in that the main control valve (V5) is by means of pilot control valve
(V3) it can be hydraulically actuated.
9. double-piston pump (1) according to claim 7 or 8, which is characterized in that each rotation or plunger case (45,47) packet
Include moveable driving element, particularly plunger (59), the moveable driving element can with forward or stretch out stroke and
Backward or the mode of retraction stroke moves, wherein the moveable driving element or plunger (59) are at least when the arrival contracting
Effect is damped when the terminal position of reversion journey.
10. double-piston pump (1) according to claim 9, which is characterized in that each rotation or plunger case (45,47) include
The piston (63) filled with gaseous material and the groups of springs (61) acted on against the piston (63), so as to cause to described removable
Dynamic driving element or plunger (59) are braked.
11. double-piston pump (1) according to claim 10, which is characterized in that the rotation or plunger case (45,47)
The moveable element or during plunger (59) braked, the moveable driving element or plunger (59) are described
Groups of springs (61) and/or the piston (63) provide pretension or prestressing force, wherein execute energy storage, especially kinetic energy energy
The storage of amount.
12. double-piston pump (1) according to claim 11, which is characterized in that in the rotation or plunger case (45,47)
During next forward stroke of the moveable element or plunger (59), the energy of storage is resumed so that storage
The energy extraly accelerates the moveable driving element or plunger (59).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP16164647.6 | 2016-04-11 | ||
| EP16164647.6A EP3232057B1 (en) | 2016-04-11 | 2016-04-11 | Method for transmitting or conveying fluid or semi-fluid materials by means of a double piston pump and double piston pump therefor |
| PCT/EP2017/057818 WO2017178261A1 (en) | 2016-04-11 | 2017-04-03 | Method for transmitting or conveying fluid or semi-fluid materials by means of a double piston pump and double piston pump therefor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108779767A true CN108779767A (en) | 2018-11-09 |
| CN108779767B CN108779767B (en) | 2020-01-21 |
Family
ID=55808364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780018269.4A Active CN108779767B (en) | 2016-04-11 | 2017-04-03 | Method for conveying or transporting fluid or semi-fluid material by means of double-piston pump and double-piston pump thereof |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP3232057B1 (en) |
| CN (1) | CN108779767B (en) |
| CA (1) | CA3012564A1 (en) |
| ES (1) | ES2687175T3 (en) |
| WO (1) | WO2017178261A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110043438A (en) * | 2019-05-24 | 2019-07-23 | 徐州徐工施维英机械有限公司 | Pasty material conveying device and engineering truck |
| CN110547063A (en) * | 2019-09-04 | 2019-12-10 | 山东弘宇农机股份有限公司 | Multifunctional hydraulic lifter assembly |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111792382A (en) * | 2019-04-09 | 2020-10-20 | 航天长征化学工程股份有限公司 | Multi-piece plunger type powder pressurizing and conveying device |
| CN113700626A (en) * | 2021-09-07 | 2021-11-26 | 湖南嘉顺华新材料有限公司 | Stable and reliable slurry plunger pump with automatic pressure control function |
| CN114956289B (en) * | 2022-06-29 | 2023-07-25 | 长春电子科技学院 | Automatic medicine mechanical system that spills that sewage environmental protection purification treatment used |
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| CN102979693A (en) * | 2012-11-27 | 2013-03-20 | 长安大学 | Device capable of realizing continuous constant flow pumping of concrete and control method of device |
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| DE9217574U1 (en) * | 1992-12-23 | 1993-05-27 | Langerbein-Scharf Gmbh & Co. Kg, 4700 Hamm, De | |
| DE4318267A1 (en) * | 1993-06-02 | 1994-12-08 | Lsb Langerbein Scharf Gmbh & C | Multi-cylinder feed pump for thick matter or the like |
| JPH08338407A (en) * | 1995-06-14 | 1996-12-24 | Tadano Ltd | Force feed device for fluid |
| CN102840123B (en) * | 2012-09-19 | 2015-09-30 | 中联重科股份有限公司 | Twin-tub pumping system Anti-moving closing method, twin-tub pumping system and pumping equipment |
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2016
- 2016-04-11 EP EP16164647.6A patent/EP3232057B1/en active Active
- 2016-04-11 ES ES16164647.6T patent/ES2687175T3/en active Active
-
2017
- 2017-04-03 CN CN201780018269.4A patent/CN108779767B/en active Active
- 2017-04-03 WO PCT/EP2017/057818 patent/WO2017178261A1/en active Application Filing
- 2017-04-03 CA CA3012564A patent/CA3012564A1/en active Pending
Patent Citations (5)
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| JPH05180161A (en) * | 1991-05-16 | 1993-07-20 | Sandoz Ag | Pump device |
| US20060245942A1 (en) * | 2004-03-26 | 2006-11-02 | Wilhelm Hofmann | Device and method for controlling a thick matter pump |
| CN1961152A (en) * | 2004-05-27 | 2007-05-09 | 施维英集团公司 | Drive device for a dual-cylinder slurry pump and method for operating said pump |
| CN104541054A (en) * | 2012-09-13 | 2015-04-22 | 普茨迈斯特工程有限公司 | Device for the drive control of a two-cylinder thick matter pump |
| CN102979693A (en) * | 2012-11-27 | 2013-03-20 | 长安大学 | Device capable of realizing continuous constant flow pumping of concrete and control method of device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110043438A (en) * | 2019-05-24 | 2019-07-23 | 徐州徐工施维英机械有限公司 | Pasty material conveying device and engineering truck |
| CN110547063A (en) * | 2019-09-04 | 2019-12-10 | 山东弘宇农机股份有限公司 | Multifunctional hydraulic lifter assembly |
| CN110547063B (en) * | 2019-09-04 | 2022-01-11 | 山东弘宇农机股份有限公司 | Multifunctional hydraulic lifter assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3232057A1 (en) | 2017-10-18 |
| ES2687175T3 (en) | 2018-10-24 |
| CA3012564A1 (en) | 2017-10-19 |
| WO2017178261A1 (en) | 2017-10-19 |
| CN108779767B (en) | 2020-01-21 |
| EP3232057B1 (en) | 2018-06-13 |
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