CN106678099B - The power hydraulic system of concrete construction machinery and concrete construction machinery - Google Patents
The power hydraulic system of concrete construction machinery and concrete construction machinery Download PDFInfo
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- CN106678099B CN106678099B CN201710040167.4A CN201710040167A CN106678099B CN 106678099 B CN106678099 B CN 106678099B CN 201710040167 A CN201710040167 A CN 201710040167A CN 106678099 B CN106678099 B CN 106678099B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
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- Engineering & Computer Science (AREA)
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- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a kind of power hydraulic systems of concrete construction machinery and concrete construction machinery, power hydraulic system includes operation power source, work pump group, emergency power supply, emergency pump, hydraulic system of pump, jib hydraulic system, swing hydraulic system and emergency control apparatus, the outlet of emergency pump and hydraulic system of pump, it jib hydraulic system and swings hydraulic system and is connected respectively with to three hydraulic system fuel feeding, and the outlet of emergency pump is connect at least two hydraulic systems in three hydraulic systems by emergency control apparatus, emergency control apparatus can control emergency pump at least two hydraulic systems while fuel feeding, so as to which emergency pump can be to three hydraulic systems while fuel feeding.The system that the present invention can conveniently meet an urgent need under operating mode controls, and improves the working efficiency under emergent operating mode.
Description
Technical field
The present invention relates to technical field of concrete construction, more particularly to a kind of double-power hydraulic system of concrete construction machinery
System and concrete construction machinery.
Background technology
Concrete spraying vehicle is a kind of common concrete construction machinery.Concrete spraying vehicle utilizes concrete pump by premixing
Good mixture is mixed by delivery pipe at nozzle with compressed air and accelerator, is ejected at a high speed by spray plane, is formed coagulation
Native branch sheath.Concrete spraying vehicle be widely used in tunnel, underground power house, subway engineering, rock engineering, military ground engineering with
And the fields such as highway engineering.
The groundwork system of concrete spraying vehicle includes hydraulic system of pump, jib hydraulic system and swings hydraulic pressure system
System.Hydraulic system of pump is responsible for the pump action of concrete, by moving back and forth for two concrete conveying cylinders of control, and
By swinging the cooperation of hydraulic system, the sucking and discharge of concrete are realized.It swings HYDRAULIC CONTROL SYSTEM and corresponds to executing agency's (example
Such as the tilt cylinder of S valves) action, by coordinating with hydraulic system of pump, complete concrete pumping process.Jib hydraulic system controls
The action of the amplitude oil cylinder, telescopic oil cylinder of each joint arm of arm support realizes the movement, revolution and Telescopic of arm support, by concrete
It is ejected into precalculated position.
In order to which each hydraulic system of concrete spraying vehicle is given to provide power, the dynamical system of concrete spraying vehicle generally comprises
Operation power system and emergency power system.
Operation power system includes operation power source and the work pump group being drivingly connected with operation power source.Operation power source
The motor of generally external 380V power electrics.Concrete spraying vehicle is each hydraulic pressure system by operation power system under normal circumstances
System provides power, realizes the normal work of each hydraulic system.
Emergency power system includes emergency power supply and the emergency pump set or emergency pump that are drivingly connected with emergency power supply.It should
Anxious power source is generally engine.In certain situations it is desirable to operation power is provided for each hydraulic system by emergency power system
To complete the gunite work of concrete spraying vehicle, such as：Power electric not yet access or work pump group can not work when, can
Arm support is opened or be withdrawn by emergency power system；It, can be by starting emergency power system when unexpected power-off
System the work such as is pumped, is swung and completing the pumping of concrete in pipeline or cleaning and complete the arm support actions such as withdrawing；Tunnel
There are 380V power electrics in working site inside road, but working procedure or due to the time, needs to clean vehicle outside tunnel,
And when there is no power electric outside tunnel, emergency power system can be used to complete vehicle cleaning.
Concrete spraying vehicle enters emergent operating mode when emergency power system starts.Under emergent operating mode, general requirement pumping
Each action of hydraulic system, jib hydraulic system and swing hydraulic system still can be realized, to realize arm support withdrawal, delivery pipe
And the functions such as conveying cylinder barrel inner concrete cleaning.Certainly, under emergent operating mode, the movement speed or dynamic of each hydraulic system is not required
Make the time as during normal work, it can be slowly.
In the prior art, there are mainly three types of various forms of power hydraulic systems for concrete spraying vehicle.
Fig. 1 shows the first power hydraulic system in the prior art.As shown in Figure 1, the power hydraulic system has
There are operation power system and emergency power system.Operation power system includes work pump group 20 and as the electronic of operation power source
Machine 30, work pump group 20 are driven by motor 30.Emergency power system includes emergency pump set 40 and the hair as emergency power supply
50 emergency pump set 40 of motivation is driven by engine 50.
The pump group 20 that works includes three working barrels：The pumping work of 60 fuel feeding of hydraulic system of pump of concrete pumping in order to control
What work pump 21, in order to control the arm support working barrel 22 of the jib hydraulic system fuel feeding of arm support action and the in order to control tilt cylinder of S valves were swung
Swing the swing working barrel 23 of 80 fuel feeding of hydraulic system.
Emergency pump set 40 includes three emergency pumps：The pumping emergency pump 41 and arm support liquid being connect with hydraulic system of pump 60
The arm support emergency pump 42 of pressure system connection and the swing emergency pump 43 being connect with swinging hydraulic system 80.
Each emergency pump corresponds in each working barrel and emergency pump set 40 in the pump group that works in the first power hydraulic system 20
Setting, the pump group 20 that works and emergency pump set 40 are in parallel, make the corresponding working barrel of two sets of dynamical systems and emergency pump with it is same
Hydraulic system connects.As shown in Figure 1, the outlet of pumping work pump 21 and pumping the outlet of emergency pump 41 and hydraulic system of pump
60 connections；The outlet of arm support working barrel 22 and the outlet of arm support emergency pump 42 are connect with jib hydraulic system, specifically with arm
The pressure oil port P connections of the electric proportional multi-way valve 70 of frame hydraulic system；It swings the outlet of working barrel 23 and swings emergency pump 43
Outlet is connect with swinging hydraulic system 80.
Electric proportional multi-way valve 70 includes multiple arm supports control connection, and each arm support control joint control system one is used to that arm support to be controlled to move
Executive component (such as hydraulic cylinder) action of work.Each arm support control connection includes two working holes, two working holes respectively with execution
Two working holes connection of element.If a working hole oil inlet of arm support control connection, another working hole are fuel-displaced.Such as Fig. 1
It is shown, wherein having marked two working hole A1 and B1 of the first arm support control connection and two working hole A2 of the second arm support control connection
And B2.The quantity of arm support control connection can be depending on the quantity of the executive component of control arm support action.
Fig. 2 shows second of power hydraulic systems in the prior art.As shown in Fig. 2, the power hydraulic system with
The first power hydraulic system is compared, and emergency power includes the single pump of emergency pump 40 1, the emergency pump 40 and arm support hydraulic pressure system
The pressure oil port P connections of the electric proportional multi-way valve 70 of system, and do not connect with hydraulic system of pump 60 and swing hydraulic system 80.
Fig. 3 shows the third power hydraulic system in the prior art.As shown in figure 3, the third double-power hydraulic system
With the first power hydraulic system the difference is that emergency power includes the single pump of emergency pump 40 1, which goes out system
Mouthful by be used for control get off supporting leg multi-way valve 90 and three position four-way directional control valve 100 respectively with hydraulic system of pump 60, arm support
Hydraulic system and swing hydraulic system 80 connect.When three position four-way directional control valve 100 is in middle position, the outlet and pumping of emergency pump 40
Hydraulic system 60 connects, and is disconnected with jib hydraulic system and swing hydraulic system 80；During in left position, the outlet of emergency pump 40
It connects with swinging hydraulic system 80, and is disconnected with hydraulic system of pump 60 and jib hydraulic system；During in right position, emergency pump 40
Outlet hydraulic system of pump 60 connected with jib hydraulic system connect, and with hydraulic system of pump 60 and swinging hydraulic system 80
It disconnects.
In the implementation of the present invention, designer has found that the more than prior art has following shortcoming：
In the first power hydraulic system, emergency pump set driven by the engine can realize that the institute of work pump group is active
Can, but its layout occupied space is larger, cost is higher.
In second of power hydraulic system, it can only realize that arm support acts, can not realize pumping and wobbling action.If
Suddenly when power-off, the concrete in delivery pipe will be unable to get, and can only manually clean.
In the third power hydraulic system, can arm support, pumping and wobbling action be realized by single pump, but three is not
It can work at the same time, especially pumping and swinging cannot be carried out at the same time, in use, needing to toggle under emergent operating mode, control
Process is loaded down with trivial details, and it is long to expend the time.
Invention content
The purpose of the present invention is to provide a kind of power hydraulic system of concrete construction machinery and concrete construction machines
Tool, it is intended to by the use of a single pump as the hydraulic system of pump of emergency pump realization concrete construction machinery, jib hydraulic system and
It swings hydraulic system to work at the same time, so as to the system control under convenient emergent operating mode, improves the working efficiency under emergent operating mode.
First aspect present invention provides a kind of power hydraulic system of concrete construction machinery, including operation power source,
Work pump group, emergency power supply, emergency pump, hydraulic system of pump, jib hydraulic system, swing hydraulic system and emergency flight control dress
Put, the operation power source and the work pump group are drivingly connected, the working barrel group respectively with the hydraulic system of pump, arm
Frame hydraulic system is connected with hydraulic system is swung with to three hydraulic system fuel feeding, the emergency power supply drives with the emergency pump
Dynamic connection, the outlet of the emergency pump and the hydraulic system of pump, the jib hydraulic system and the swing hydraulic system
It is connected respectively with to three hydraulic system fuel feeding, and the outlet of the emergency pump and at least two in three hydraulic systems
A hydraulic system is connected by the emergency control apparatus, the emergency control apparatus can control the emergency pump to it is described extremely
Few two hydraulic systems while fuel feeding, so as to which the emergency pump can be to three hydraulic systems while fuel feeding.
Further, the power hydraulic system includes electric proportional multi-way valve, and the jib hydraulic system includes electric ratio
Multiple arm supports control connection of example multi-way valve, the work pump group include arm support working barrel, the outlet of the arm support working barrel and institute
It states pressure oil port of the outlet of emergency pump with the electric proportional multi-way valve to connect, the emergency control apparatus includes independent control
The pumping emergency flight control element of aperture and the swing emergency flight control element of independent control aperture, wherein, the pumping emergency flight control
Element is connected between the outlet of the emergency pump and the hydraulic system of pump, and institute is exported to for control the emergency pump
State the flow of hydraulic system of pump；The emergency flight control element that swings is connected to the outlet of the emergency pump and the swing hydraulic pressure
Between system, for controlling the flow for being exported to the swing hydraulic system of the emergency pump.
Further, the pumping emergency flight control element includes independently arranged pumping emergency flight control valve；It is and/or described
It swings emergency flight control element and includes independently arranged swing emergency flight control valve.
Further, the pumping emergency flight control element includes the pumping emergency flight control connection of the electric proportional multi-way valve, institute
It states pumping emergency flight control connection and includes the pumping system working hole being connect with the hydraulic system of pump；And/or described swing is met an urgent need
Control element includes the swing emergency flight control connection of the electric proportional multi-way valve, and the swing emergency flight control connection includes and the swing
The oscillation system working hole of hydraulic system connection.
Further, the valve structure phase of the pumping emergency flight control connection and the arm support control connection of the electric proportional multi-way valve
Together and it is arranged in parallel；And/or the valve structure for swinging emergency flight control connection and the arm support control connection of the electric proportional multi-way valve
It is identical and be arranged in parallel.
Further, the power hydraulic system further includes lower vehicle hydraulic system, wherein, the pumping emergency flight control connection
Further include the system working hole of getting off being connect with the lower vehicle hydraulic system；Alternatively, it is described swing emergency flight control connection further include with
The system working hole of getting off of the lower vehicle hydraulic system connection.
Further, the work pump group includes pumping work pump, and the outlet of pumping work pump is to the pumping liquid
Pressure system one-way conduction；And/or the work pump group includes arm support working barrel, the outlet of the arm support working barrel is to the arm
Frame hydraulic system one-way conduction；And/or the work pump group includes swinging working barrel, the outlet for swinging working barrel is to institute
It states and swings hydraulic system one-way conduction；And/or the outlet of the emergency pump is to the jib hydraulic system one-way conduction；With/
Or, the outlet of the emergency pump is to the hydraulic system of pump one-way conduction；And/or the outlet of the emergency pump is to the pendulum
Hydrodynamic pressure system one-way conduction.
Further, the pumping system working hole is to the hydraulic system of pump one-way conduction；And/or the swing
System working hole swings hydraulic system one-way conduction to described.
Second aspect of the present invention provides a kind of concrete construction machinery, including described in any one of first aspect present invention
Power hydraulic system.
Further, the concrete construction machinery is concrete spraying vehicle.
Power hydraulic system and concrete construction machinery based on concrete construction provided by the invention machinery, emergency pump
Outlet and hydraulic system of pump, jib hydraulic system and swing hydraulic system and connect respectively with to three hydraulic system fuel feeding,
And by the control of emergency control apparatus, therefore emergency pump, can utilize emergent to three hydraulic systems while fuel feeding
Pump one is single to be pumped the hydraulic system of pump for realizing concrete construction machinery, jib hydraulic system and swings hydraulic system work simultaneously
Make.The present invention facilitates the system control under emergent operating mode, improving should on the basis of one single pump of setting is as emergency pump
Working efficiency under anxious operating mode.
By referring to the drawings to the detailed description of exemplary embodiment of the present invention, other feature of the invention and its
Advantage will become apparent.
Description of the drawings
Attached drawing described herein is used to provide further understanding of the present invention, and forms the part of the application, this hair
Bright illustrative embodiments and their description do not constitute improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is the principle schematic of the first power hydraulic system in the prior art.
Fig. 2 is the principle schematic of second of power hydraulic system in the prior art.
Fig. 3 is the principle schematic of the third power hydraulic system in the prior art.
Fig. 4 is the principle schematic of the power hydraulic system of the embodiment of the present invention.
In Fig. 1 to Fig. 4, each reference numeral represents respectively：
10th, fuel tank, 20, work pump group, 21, pumping work pump, 22, arm support working barrel, 23, swing working barrel, 30, electronic
Machine, 40, emergency pump set or emergency pump, 41, pumping emergency pump, 42, arm support emergency pump, 43, swing emergency pump, 50, engine,
60th, hydraulic system of pump, 70, electric proportional multi-way valve, 80, swing hydraulic system, 90, multi-way valve, 100, three position four-way directional control valve,
101st, the first check valve, the 102, second check valve, 103, third check valve, the 104, the 4th check valve, the 105, the 5th check valve,
106th, the 6th check valve, 110, electric proportional multi-way valve, 111, swing emergency flight control connection, 112, pumping emergency flight control connection, 120, under
Vehicle hydraulic system.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.Below
Description only actually at least one exemplary embodiment is illustrative, is never used as to the present invention and its application or makes
Any restrictions.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Lower all other embodiments obtained, shall fall within the protection scope of the present invention.
Unless specifically stated otherwise, the component and positioned opposite, the digital table of step otherwise illustrated in these embodiments
It is not limited the scope of the invention up to formula and numerical value.Simultaneously, it should be appreciated that for ease of description, each portion shown in attached drawing
The size divided not is to be drawn according to practical proportionate relationship.For technology, side known to person of ordinary skill in the relevant
Method and equipment may be not discussed in detail, but in the appropriate case, and the technology, method and apparatus should be considered as authorizing explanation
A part for book.In shown here and discussion all examples, any occurrence should be construed as merely illustrative, and
Not by way of limitation.Therefore, the other examples of exemplary embodiment can have different values.It should be noted that：Similar label
Similar terms are represented in following attached drawing with letter, therefore, once it is defined in a certain Xiang Yi attached drawing, then subsequent attached
It does not need to that it is further discussed in figure.
In the description of the present invention, it is to be understood that limit parts using the words such as " first ", " second ", only
It is for only for ease of and corresponding parts is distinguished, such as without Stated otherwise, above-mentioned word is not there is no particular meaning, therefore not
It is understood that as limiting the scope of the invention.
Fig. 4 is the principle schematic of the power hydraulic system of the embodiment of the present invention.In the present embodiment, double-power hydraulic system
The power hydraulic system united as concrete spraying vehicle.But the present invention is not limited to concrete spraying vehicle, for example, it is also possible to be other
The concrete construction machinery of type.
As shown in figure 4, the power hydraulic system includes operation power source, work pump group 20, emergency power supply, emergency pump
40th, hydraulic system of pump 60, jib hydraulic system, swing hydraulic system 80 and emergency control apparatus.Operation power source and work
Pump group 20 is drivingly connected.Work pump group 20 connects respectively with hydraulic system of pump 60, jib hydraulic system and swing hydraulic system 80
It connects with to three hydraulic system fuel feeding.Emergency power supply is drivingly connected with emergency pump 40.The outlet of emergency pump 40 and pumps hydraulic
It system 60, jib hydraulic system and swings hydraulic system 80 and is connected respectively with to three hydraulic system fuel feeding.Wherein, emergency pump 40
Outlet connect at least two hydraulic systems in three hydraulic systems by emergency control apparatus, emergency control apparatus can
Emergency pump 40 is controlled at least two hydraulic systems while fuel feeding, so as to which emergency pump 40 can simultaneously be supplied to three hydraulic systems
Oil.
Due to the outlet of emergency pump 40 in the power hydraulic system and hydraulic system of pump 60, jib hydraulic system and pendulum
Hydrodynamic pressure system 80 is connected respectively with to three hydraulic system fuel feeding, and passes through the control of emergency control apparatus, emergency pump 40
It can realize to three hydraulic systems while fuel feeding, therefore, the single pump of emergency pump one can be utilized to realize that concrete construction is mechanical
Hydraulic system of pump, jib hydraulic system and swing hydraulic system work at the same time.The present invention is used as in one single pump of setting should
On the basis of anxious pump, the system control under emergent operating mode is facilitated, improves the working efficiency under emergent operating mode.
In the present embodiment, operation power source is motor 30, and emergency power supply is engine 50.
Preferably, the outlet of emergency pump 40 is directly connected to a hydraulic system in three hydraulic systems, emergency pump 40
Outlet connect with another two hydraulic system in three hydraulic systems by emergency control apparatus, emergency control apparatus can control
Emergency pump 40 to other two hydraulic system simultaneously fuel feeding.The setting can be under emergent operating mode with simple control structure and control
Mode processed realizes that a single pump completes hydraulic system of pump, jib hydraulic system and the swing hydraulic system of concrete construction machinery
It works at the same time.
In the present embodiment, outlet and the jib hydraulic system of emergency pump 40 are directly connected to, and with hydraulic system of pump 60 and
Hydraulic system 80 is swung to connect by emergency control apparatus.
As shown in figure 4, power hydraulic system includes electric proportional multi-way valve 110, it is more that jib hydraulic system includes electric ratio
Multiple arm supports control connection of road valve 110, work pump group 20 include arm support working barrel 22, the outlet of arm support working barrel 22 and emergency pump
Pressure oil port P of 40 outlet with electric proportional multi-way valve 110 is connect.Emergency control apparatus includes the pumping of independent control aperture
The swing emergency flight control element of emergency flight control element and independent control aperture.Pumping emergency flight control element is connected to emergency pump 40
Between outlet and hydraulic system of pump 60, for controlling the flow being exported between hydraulic system of pump 60 of emergency pump 40.Pendulum
Between dynamic emergency flight control element is connected to the outlet of emergency pump 40 and swings hydraulic system 80, for controlling the outlet of emergency pump 40
To the flow swung between hydraulic system 80.
Electric proportional multi-way valve 110 is load-sensitive electric proportional multi-loop valve, is become one by the work connection of multiple chips.
Electric proportional multi-way valve 110 includes multiple arm supports control connection, and each arm support control joint control system one is used to control arm support
Executive component (such as hydraulic cylinder) action of action.As shown in figure 4, each arm support control connection includes two work of hydraulic fluid port A and hydraulic fluid port B
Mouthful, two working holes are connect respectively with two working holes of executive component.If a working hole oil inlet of arm support control connection,
Another working hole is fuel-displaced.The quantity of arm support control connection can be depending on the quantity of the executive component of control arm support action, should
Quantity can use the positive integer n more than or equal to 1 to represent.In the present embodiment, by two working oils of first arm support control connection
Two actuator ports of second arm support control connection are labeled as A2 and B2 by mouth labeled as A1 and B1, and so on.Each arm support
Control connection is correspondingly arranged on automatically controlled end or manual control knobs, by automatically controlled or manual control knobs, can make counterpart arm frame
Control joins corresponding spool and is in corresponding position, the single movement of each arm support control connection is realized with this, so as to realize control
The single movement of Zhong Ge executing agencies of executing agency or the composite move of wherein several executing agencies of arm support action.
As shown in figure 4, two working holes of hydraulic fluid port A1 and hydraulic fluid port B1 and the second arm of the first arm support control connection are wherein marked
Remaining arm support control connection (if there is) is not shown in two working holes of hydraulic fluid port A2 and hydraulic fluid port B2 of frame control connection.
In the present embodiment preferably, electric proportional multi-way valve 70, which further includes, swings emergency flight control connection 111 and pumping emergency flight control
Connection 112.It swings emergency flight control connection 111 and pumping emergency flight control connection 112 is connect with pressure oil port P.In the present embodiment, aforementioned pump
Send the pumping emergency flight control connection 112 that emergency flight control element includes electric proportional multi-way valve 110.Pump emergency flight control connection 112 include with
The pumping system working hole An+2 that hydraulic system of pump 60 connects.Aforementioned swing emergency flight control element includes electric proportional multi-way valve
110 swing emergency flight control connection 111.Pumping emergency flight control connection 111 includes the oscillation system work being connect with swinging hydraulic system 80
Make mouth Bn+1.The setting so that the Hydraulic Elements of power hydraulic system are few, and arrangement space occupies small.
It is highly preferred that pumping emergency flight control connection it is identical with the valve structure that each arm support control of electric proportional multi-way valve 70 joins and
It is arranged in parallel.To swing emergency flight control connection identical with the valve structure that each arm support control of electric proportional multi-way valve 70 joins and in parallel sets
It puts.The setting so that the structure of electric proportional multi-way valve 110 and control are relatively simple, also makes power hydraulic system compact-sized,
Pipeline arrangement is simple, not error-prone.
Electric proportional multi-way valve 110 is used to control the arm support under accidental conditions and under emergent operating mode to act, be additionally operable to control
Pump action and wobbling action under the emergent operating mode of system.N arm support control combination therein is in the action of control arm support.Other two
The control of a control combination pump action and wobbling action under emergent operating mode.
In an embodiment (not shown), pumping emergency flight control element includes independently arranged pumping emergency flight control valve.
It swings emergency flight control element and includes independently arranged swing emergency flight control valve.It is of course also possible to only on electric proportional multi-way valve 110
The integrated valve block swung in emergency flight control connection 111 and pumping emergency flight control connection 112, the function of another valve block is by independently setting
The emergency flight control valve put is realized.
As shown in figure 4, in the present embodiment, power hydraulic system further includes lower vehicle hydraulic system 120, wherein, pumping should
The working hole Bn+2 of anxious control connection 112 is connect as system working hole of getting off with lower vehicle hydraulic system 120.
The working hole An+1 for swinging emergency flight control connection 111 can also be used as get off system working hole and lower vehicle hydraulic system
120 connections.
Due to lower vehicle hydraulic system action under normal circumstances with jib hydraulic system, hydraulic system of pump and swing hydraulic pressure system
The action of system is not carried out at the same time, and therefore, can utilize the oil more than needed for swinging emergency flight control connection 111 or pumping emergency flight control connection 112
Mouth is answered as the system working hole of getting off in normal work and under emergent operating mode being lower vehicle hydraulic system fuel feeding without influencing
Whitewashing or cleaning under anxious operating mode.
Certainly, the swing emergency flight control connection 111 in electric proportional multi-way valve 110 and pumping emergency flight control connection 112 are in electric ratio
Specific location in each control connection of multi-way valve is unrestricted, such as can be controlled before connection in whole arm supports, two arm supports
Between control connection or behind whole arm supports control connection.In addition, swing emergency flight control connection 111 and pumping emergency flight control connection
112 can be disposed adjacent, and can also be spaced other control connection therebetween.In addition, swing emergency flight control connection 111 and pumping emergency flight control
Connection 112 and the working hole of corresponding hydraulic system connection are also unrestricted, for example, for emergency flight control connection 111, Ke Yishi is swung
Hydraulic fluid port A output flows give swing hydraulic system 80 to swing hydraulic system 80 or hydraulic fluid port B output flows.
As shown in figure 4, work pump group 20 includes pumping work pump 21, arm support working barrel 22 and swings working barrel 23.Work
Pump group 20 includes above-mentioned each working barrel but is not limited only to above-mentioned each working barrel.
As shown in figure 4, one-way conduction of the outlet of pumping work pump 21 to hydraulic system of pump 60.In the present embodiment, pump
The outlet of working barrel 21 is sent to be connect with the import of the first check valve 101, outlet and the hydraulic system of pump 60 of the first check valve 101
Connection.The flow of pumping work pump 21 is larger, it is contemplated that the pressure loss, it is single to substitute first that the cover plate valve of plug-in may be used
To valve 101.
The outlet of arm support working barrel 22 is to the one-way conduction of jib hydraulic system.In the present embodiment, arm support working barrel 22
Outlet is connect with the import of the second check valve 102, and the outlet of the second check valve 102 is connect with jib hydraulic system.Arm support works
The flow of pump 22 is larger, it is contemplated that the cover plate valve of plug-in may be used to substitute the second check valve 102 in the pressure loss.
The outlet of working barrel 23 is swung to the one-way conduction of swing hydraulic system 80.In the present embodiment, working barrel 23 is swung
Outlet connect with the import of third check valve 103, the import of third check valve 103 is connect with swinging hydraulic system 80.
The outlet of emergency pump 40 is to jib hydraulic system one-way conduction.In the present embodiment, the outlet of emergency pump 40 and the 4th
The import connection of check valve 104, the outlet of the 4th check valve are connect with the pressure oil port P of electric proportional multi-way valve 110.
The outlet of emergency pump 40 is to 60 one-way conduction of hydraulic system of pump.In the present embodiment, pumping system working hole An+2
It connect with hydraulic system of pump 60 to realize pumping system working hole An+2 to hydraulic system of pump 60 by the 5th check valve 105
One-way conduction.
The outlet of emergency pump 40 to swing 80 one-way conduction of hydraulic system.In the present embodiment, oscillation system working hole Bn+1
It connect to realize oscillation system working hole Bn+1 to swing hydraulic system 80 with swinging hydraulic system 80 by the 6th check valve 106
One-way conduction.
Setting of the outlet respectively pumped above to corresponding hydraulic system one-way conduction can prevent the oil stream of each hydraulic system
Reflux, is also possible to prevent the oil stream intercommunication of work pump group 20 and emergency pump 40.For example, during normal work, engine 50 does not work,
Emergency pump 40 is not fuel-displaced, and the 4th check valve 104 that emergency pump 40 exports can prevent the high pressure oil of arm support working barrel 22 from entering should
Anxious pump 40；The An+2 mouths of the pumping emergency flight control connection 112 of electric proportional multi-way valve 110 are not fuel-displaced, and the 5th check valve 105 can prevent
The high pressure oil of pumping work pump 21 enters electric proportional multi-way valve 110；The emergency flight control that swings of electric proportional multi-way valve 110 joins 111
Bn+1 mouthfuls not fuel-displaced, and the 6th check valve 106 can prevent the high pressure oil for swinging working barrel 23 from entering electric proportional multi-way valve 110.
When concrete spraying vehicle works normally, motor 30 drives work pump group 20, pumping work pump 21, arm support work
Pump 22 and swing working barrel 23 realize hydraulic system of pump 60, arm support hydraulic pressure system respectively to the hydraulic system fuel feeding being correspondingly connected with
System and the action for swinging hydraulic system 80.Engine 50 and emergency pump 40 do not work at this time.
When the pump group 20 that works can not work normally, emergency pump 40 is driven to work by engine 50, emergency pump 40 exports
High pressure oil enter electric proportional multi-way valve 110 after, by controlling n arm support control connection, pumping emergency flight control connection 112 and swinging liquid
The spool of voltage-controlled system connection 111 realizes that corresponding hydraulic fluid port is fuel-displaced.So as to which emergency pump 40 passes through n arm of electric proportional multi-way valve 110 respectively
Frame control connection, pumping emergency flight control join 112 and swing hydraulic control connection 111 to jib hydraulic system, 60 and of hydraulic system of pump
The fuel feeding simultaneously of hydraulic system 80 is swung, realizes that arm support, pumping and swing act simultaneously.
Under the emergent operating mode that jerking movement pump 40 is answered to start, the pump of concrete spraying vehicle by remote controller operation, can be realized
Hydraulic system 60, jib hydraulic system and the collaborative work for swinging hydraulic system 80 are sent, completes concrete ejection or Cleaning pipes.
The present invention also provides a kind of concrete construction machinery, concrete lathe turner machinery includes aforementioned double-power hydraulic system
System.Concrete construction machinery is, for example, concrete spraying vehicle.
Above example realizes hydraulic system of pump, the arm support hydraulic pressure of concrete construction machinery using one single pump of emergency pump
System and swing hydraulic system work at the same time, and on the basis of one single pump of setting is as emergency pump, facilitate under emergent operating mode
System control, improve the working efficiency under emergent operating mode.Further, an emergency pump cooperation is integrated in including multiple arms
Two control connection on the electric proportional multi-way valve of frame control connection, can efficiently use existing control system, real in simple structure
It is acted while hydraulic system of pump, jib hydraulic system and swing hydraulic system under operating mode of now meeting an urgent need.The embodiment it is double acting
Power hydraulic system also has that Hydraulic Elements are few, arrangement space occupy it is small, it is at low cost, it is stable and reliable in work and meet the requirements excellent
Point.
Finally it should be noted that：The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof；To the greatest extent
The present invention is described in detail with reference to preferred embodiments for pipe, those of ordinary skills in the art should understand that：Still
It can modify to the specific embodiment of the present invention or equivalent replacement is carried out to some technical characteristics；Without departing from this hair
The spirit of bright technical solution should all cover in the claimed technical solution range of the present invention.
Claims (10)
1. a kind of power hydraulic system of concrete construction machinery, including operation power source, work pump group (20), emergency power
Source, hydraulic system of pump (60), jib hydraulic system, swings hydraulic system (80) and emergency control apparatus, institute at emergency pump (40)
Operation power source and the work pump group (20) is stated to be drivingly connected, the work pump group (20) respectively with the hydraulic system of pump
(60), jib hydraulic system and swing hydraulic system (80) and connect with to three hydraulic system fuel feeding, the emergency power supply with
The emergency pump (40) is drivingly connected, which is characterized in that the outlet of the emergency pump (40) and the hydraulic system of pump (60),
The jib hydraulic system and the swing hydraulic system (80) are connected respectively with to three hydraulic system fuel feeding, and it is described should
The outlet of anxious pump (40) is connect at least two hydraulic systems in three hydraulic systems by the emergency control apparatus,
The emergency control apparatus can control the emergency pump (40) at least two hydraulic system while fuel feeding, so as to described
Emergency pump (40) can be to three hydraulic systems while fuel feeding.
2. power hydraulic system according to claim 1, which is characterized in that the power hydraulic system includes electric ratio
Example multi-way valve (110), the jib hydraulic system include multiple arm supports control connection of electric proportional multi-way valve (110), the work
Pump group (20) includes arm support working barrel (22), the outlet of the arm support working barrel (22) and the outlet of the emergency pump (40) with
Pressure oil port (P) connection of the electricity proportional multi-way valve (110), the emergency control apparatus include the pumping of independent control aperture
The swing emergency flight control element of emergency flight control element and independent control aperture, wherein,
The pumping emergency flight control element is connected between the outlet of the emergency pump (40) and the hydraulic system of pump (60),
For controlling the flow for being exported to the hydraulic system of pump (60) of the emergency pump (40)；
The emergency flight control element that swings is connected between the outlet of the emergency pump (40) and the swing hydraulic system (80),
For controlling the flow for being exported to the swing hydraulic system (80) of the emergency pump (40).
3. power hydraulic system according to claim 2, which is characterized in that
The pumping emergency flight control element includes independently arranged pumping emergency flight control valve；And/or
The swing emergency flight control element includes independently arranged swing emergency flight control valve.
4. power hydraulic system according to claim 2, which is characterized in that
The pumping emergency flight control element includes the pumping emergency flight control connection (112) of the electric proportional multi-way valve (110), the pump
Send pumping system working hole (An+2) of the emergency flight control connection (112) including being connect with the hydraulic system of pump (60)；And/or
The swing emergency flight control connection (111) for swinging emergency flight control element and including the electric proportional multi-way valve (110), the pendulum
Dynamic emergency flight control connection (111) includes the oscillation system working hole (Bn+1) that is connect with the swing hydraulic system (80).
5. power hydraulic system according to claim 4, which is characterized in that
The pumping emergency flight control connection is identical and in parallel with the valve structure of the arm support control connection of the electric proportional multi-way valve (110)
Setting；And/or
The valve structure of the arm support control connection for swinging emergency flight control connection and the electricity proportional multi-way valve (110) is identical and in parallel
Setting.
6. power hydraulic system according to claim 5, which is characterized in that the power hydraulic system further includes down
Vehicle hydraulic system (120), wherein,
The pumping emergency flight control connection (112) further includes the system working hole of getting off being connect with the lower vehicle hydraulic system (120)
(Bn+2)；Alternatively,
The swing emergency flight control connection (111) further includes the system working hole of getting off being connect with the lower vehicle hydraulic system (120).
7. power hydraulic system according to any one of claim 1 to 6, which is characterized in that
The work pump group (20) includes pumping work pump (21), and the outlet of pumping work pump (21) is to the pumps hydraulic
System (60) one-way conduction；And/or
The work pump group (20) includes arm support working barrel (22), and the outlet of the arm support working barrel (22) is to the arm support hydraulic pressure
System one-way conduction；And/or
The work pump group (20) includes swinging working barrel (23), and the outlet for swinging working barrel (23) is to the swing hydraulic pressure
System (80) one-way conduction；And/or
The outlet of the emergency pump (40) is to the jib hydraulic system one-way conduction；And/or
The outlet of the emergency pump (40) is to the hydraulic system of pump (60) one-way conduction；And/or
The outlet of the emergency pump (40) swings hydraulic system (80) one-way conduction to described.
8. the power hydraulic system according to any one of claim 4 to 6, which is characterized in that
The pumping system working hole (An+2) is to the hydraulic system of pump (60) one-way conduction；And/or
The oscillation system working hole (Bn+1) swings hydraulic system (80) one-way conduction to described.
9. a kind of concrete construction machinery, which is characterized in that including according to any one of claim 1 to 8 double dynamical
Hydraulic system.
10. concrete construction machinery according to claim 9, which is characterized in that the concrete construction machinery is coagulation
Native shotcrete vehicle.
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| CN201710040167.4A CN106678099B (en) | 2017-01-20 | 2017-01-20 | The power hydraulic system of concrete construction machinery and concrete construction machinery |
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| CN201710040167.4A CN106678099B (en) | 2017-01-20 | 2017-01-20 | The power hydraulic system of concrete construction machinery and concrete construction machinery |
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| CN106678099B true CN106678099B (en) | 2018-06-22 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN217708618U (en) * | 2022-06-29 | 2022-11-01 | 三一汽车起重机械有限公司 | Hydraulic power system and working machine |
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| CN106678099A (en) | 2017-05-17 |
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Denomination of invention: Double power hydraulic system of concrete construction machinery and concrete construction machinery Effective date of registration: 20210802 Granted publication date: 20180622 Pledgee: Industrial and Commercial Bank of China Limited Xuzhou Branch Pledgor: XUZHOU XCMG SCHWING MACHINERY Co.,Ltd. Registration number: Y2021320000152 |
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Date of cancellation: 20211227 Granted publication date: 20180622 Pledgee: Industrial and Commercial Bank of China Limited Xuzhou Branch Pledgor: XUZHOU XCMG SCHWING MACHINERY Co.,Ltd. Registration number: Y2021320000152 |