CN104405134A - Power system and power control method of vehicle-mounted concrete pumping device - Google Patents
Power system and power control method of vehicle-mounted concrete pumping device Download PDFInfo
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- CN104405134A CN104405134A CN201410474254.7A CN201410474254A CN104405134A CN 104405134 A CN104405134 A CN 104405134A CN 201410474254 A CN201410474254 A CN 201410474254A CN 104405134 A CN104405134 A CN 104405134A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
- E04G21/04—Devices for both conveying and distributing
- E04G21/0418—Devices for both conveying and distributing with distribution hose
- E04G21/0436—Devices for both conveying and distributing with distribution hose on a mobile support, e.g. truck
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Abstract
The invention discloses a power system of a vehicle-mounted concrete pumping device. The vehicle-mounted concrete pumping device comprises a traveling mechanism, the power system comprises a chassis power unit, a transfer case, an upper power unit, a pump unit, a first oil pump and a hydraulic control system, wherein power provided by the chassis power unit is respectively transferred to the traveling mechanism and the pump unit through the transfer case, and the pump unit is connected with the hydraulic control system; the upper power unit is connected with the first oil pump, the first oil pump is connected with the hydraulic control system, and the upper power unit is used for providing power to an auxiliary working condition or is used for providing the power to the pumping working condition together with the chassis power unit when the chassis power unit cannot satisfy the pumping working condition. By adopting the power system, the weight and energy consumption of the entire device can be reduced, the energy is more reasonable to use, and the energy is obviously saved. In addition, the invention also discloses a power control method of the vehicle-mounted concrete pumping device.
Description
Technical field
The present invention relates to engineering machinery dynamic Control field, particularly a kind of dynamical system of Vehicular concrete pumping equipment and power-control method thereof.
Background technology
Vehicle loaded pump and pump truck are Vehicular concrete pumping equipments conventional at present, extensive application in building operations.The pumping system of pumping of concrete is arranged on automobile chassis by Vehicle loaded pump and pump truck, chassis is provided with the traveling mechanism facilitating equipment to travel, pumping system comprises master cylinder, oscillating oil cylinder, mixing plant, usually, Vehicle loaded pump and pump truck are also provided with the servicing unit such as water pump, support oil cylinder, for pump truck, also be provided with boom frame telescopic oil cylinder, for driving jib action, therefore, this kind equipment has the dual-use function of traveling and pumping of concrete.
The working condition of Vehicular concrete pumping equipment comprises traveling, pumping operating mode and auxiliary operating mode, wherein pumping operating mode is the construction operating mode of pumping of concrete, auxiliary operating mode comprise to drive in time expecting stir, carwash time drive to drive when to drive support oil cylinder, boom frame telescopic when water pump, telescopic outrigger when to drive master cylinder or tilt cylinder crawl and low clearance construction when telescopic oil cylinder, repair apparatus without stirring pumping operation; There is multiple type of drive to complete above-mentioned various operations in Vehicle loaded pump and pump truck, type of drive the most frequently used on market today adopts independently to go up mounted engine and engine in situ, upper mounted engine and engine in situ can work alone, this upper mounted engine can drive separately pumping institution staff, therefore power needs larger, and this mode needs additionally to increase a high-power engine, cost is higher, water low-rise building, when material, carwash and telescopic outrigger, occur " low load with strong power " phenomenon, power dissipation is serious.
Application number be 201120507560.8 Chinese patent disclose a kind of Vehicular concrete pump confluent type power set, its engine in situ and upper mounted engine drive three operation of oil pumps respectively, the two both can drive pumping system separately, also can reach the object of combining and driving pumping system by interflow technology; But upper mounted engine need drive three operation of oil pumps simultaneously, and because mounted engine can separately for pumping system provides power on this, therefore on this, the power demand of mounted engine is comparatively large, and cost is higher, the wherein fluid of two oil pumps direct oil sump tank during the work of interflow, power dissipation is serious.
Summary of the invention
In view of this, an object of the present invention is the dynamical system proposing a kind of Vehicular concrete pumping equipment, this dynamical system can meet Vehicular concrete pumping equipment traveling and the power needed for operation, the capacity usage ratio of whole dynamical system can be made again to improve, energy consumption reduces, and can also reduce the cost of whole equipment.
In addition, another object of the present invention is to provide a kind of power-control method of Vehicular concrete pumping equipment.
On the one hand, present invention also offers a kind of dynamical system of Vehicular concrete pumping equipment, described Vehicular concrete pumping equipment comprises traveling mechanism, described dynamical system comprises chassis power unit, transfer case, upper dress power unit, pump group, the first oil pump and hydraulic control system, the power that described chassis power unit provides selectively passes to traveling mechanism and described pump group by described transfer case, and described pump group is connected with described hydraulic control system; Described upper dress power unit is connected with the input of the first oil pump, and described first oily delivery side of pump is connected with hydraulic control system; Described hydraulic control system comprises main system, oscillator system and auxiliary system, under auxiliary operating mode, drives described auxiliary system works by upper dress power unit; Under pumping operating mode, drive main system and oscillator system to work by chassis power unit simultaneously, or, combined by chassis power unit and upper dress power unit drive main system, oscillator system works simultaneously.
As the dynamical system improvement on the one hand of a kind of Vehicular concrete pumping equipment of the present invention, also comprise under described pumping operating mode: drive main system, oscillator system and auxiliary system to work by chassis power unit simultaneously, or, combined by chassis power unit and upper dress power unit and drive main system, oscillator system and auxiliary system to work simultaneously.
As the dynamical system improvement on the one hand of a kind of Vehicular concrete pumping equipment of the present invention, main system is for driving master cylinder, and oscillator system is for driving oscillating oil cylinder; Auxiliary system for drive mixing plant, water pump, support oil cylinder and boom frame telescopic oil cylinder at least one of them, or during for driving master cylinder or oscillating oil cylinder crawl or low clearance construction during repair apparatus without stirring pumping operation.
As the dynamical system improvement on the one hand of a kind of Vehicular concrete pumping equipment of the present invention, described pump group is three oil pumps, comprise coaxial the second oil pump, the 3rd oil pump and the 4th oil pump that arrange, wherein, second oil pump connects auxiliary system, 3rd oil pump connects oscillator system, and the 4th oil pump connects main system.
As the dynamical system improvement on the one hand of a kind of Vehicular concrete pumping equipment of the present invention, the rated power of described upper dress power unit is less than the rated output power of the 4th oil pump.
As the dynamical system improvement on the one hand of a kind of Vehicular concrete pumping equipment of the present invention, described hydraulic control system also comprises fuel tank, control valve and multiple one way valve, between described second oil pump and auxiliary system, the 3rd between oil pump and oscillator system and the 4th be all provided with described one way valve between oil pump and main system; Described first oil pump is connected with main system with auxiliary system, oscillator system respectively by multiple actuator ports of control valve, and each actuator port of described control valve is with corresponding auxiliary system, be all provided with described one way valve between oscillator system and main system.
As the dynamical system improvement on the one hand of a kind of Vehicular concrete pumping equipment of the present invention, described control valve comprises two-bit triplet electromagnetic valve, three position four-way electromagnetic valve and cartridge valve, the oil-in of the oil-in of described cartridge valve, the oil-in of two-bit triplet electromagnetic valve and three position four-way electromagnetic valve is all connected with the oil-out of described first oil pump, the actuator port of described two-bit triplet electromagnetic valve is connected with the control port of described cartridge valve, and the oil return opening of described two-bit triplet electromagnetic valve is connected with fuel tank; The actuator port of described cartridge valve is connected with described main system; Two actuator ports of described three position four-way electromagnetic valve are connected with oscillator system with described auxiliary system respectively, and the oil return opening of described three position four-way electromagnetic valve is connected with fuel tank.
As the dynamical system improvement on the one hand of a kind of Vehicular concrete pumping equipment of the present invention, described control valve comprises three-position four-way valve, described three-position four-way valve has an oil-in and three actuator ports, three described actuator ports are connected with auxiliary system with described main system, oscillator system respectively, described three-position four-way valve is on a station, and the oil-in of described main system, oscillator system is connected.
As the dynamical system improvement on the one hand of a kind of Vehicular concrete pumping equipment of the present invention, described hydraulic control system also comprises reducing valve, and described reducing valve is arranged on the oil circuit between described control valve and main system and/or oscillator system and/or auxiliary system.
As the dynamical system improvement on the one hand of a kind of Vehicular concrete pumping equipment of the present invention, described dynamical system also comprises the 5th oil pump be connected with described chassis power unit, and described 5th oil pump is for driving boom system and/or the leg system of described Vehicular concrete pumping equipment.
The dynamical system of a kind of Vehicular concrete pumping equipment provided by the invention, compared with prior art, what this dynamical system was connected with upper dress power unit is a single pump, i.e. the first oil pump, decrease the quantity of pump, therefore greatly can save the arrangement space of dynamical system, simplify structure, also help the load alleviating Vehicular concrete pumping equipment, save energy consumption, in addition, because upper dress power unit is used for providing power for auxiliary operating mode, or when chassis power unit can not meet pumping operating mode, upper dress power unit provides pumping required drive to exceed the partial power of the maximum outputting power of chassis power unit, for pumping operating mode provides power together with the power unit of chassis, that is compared to existing technology in upper dress power unit, on this, dress power unit only carries out supplementary power demand, needed for the power that provides greatly reduce, therefore on this, dress power unit can be accomplished less in power type selecting, and only need drive single pump work, reduce cost and the weight of Vehicular concrete pumping equipment, the energy consumption of this dynamical system is reduced, substantially increase the effective rate of utilization of energy.
On the other hand, present invention also offers a kind of power-control method of Vehicular concrete pumping equipment, the dynamical system of described Vehicular concrete pumping equipment comprises chassis power unit and upper dress power unit, it is characterized in that, the hydraulic control system of described Vehicular concrete pumping equipment comprises main system, oscillator system and auxiliary system, under auxiliary operating mode, described auxiliary system works is driven by upper dress power unit, under pumping operating mode, drive main system and oscillator system to work by chassis power unit simultaneously, or, driving main system is combined by chassis power unit and upper dress power unit, oscillator system works simultaneously.
As the power-control method improvement on the one hand of a kind of Vehicular concrete pumping equipment of the present invention, also comprise under described pumping operating mode: drive main system, oscillator system and auxiliary system to work by chassis power unit simultaneously, or, combined by chassis power unit and upper dress power unit and drive main system, oscillator system and auxiliary system to work simultaneously.
As the power-control method improvement on the one hand of a kind of Vehicular concrete pumping equipment of the present invention, when described chassis power unit can not meet the power demand of Vehicular concrete pumping equipment under pumping operating mode, the power that described upper dress power unit provides is the part that Vehicular concrete pumping equipment required drive exceeds the maximum outputting power of chassis power unit.
In addition, the power-control method of a kind of Vehicular concrete pumping equipment provided by the invention, upper dress power unit is used for separately for auxiliary system and oscillator system provide power, or when described chassis power unit can not meet the power demand of Vehicular concrete pumping equipment, work as Vehicular concrete pumping equipment provides power with described chassis power unit simultaneously, that is, under pumping operating mode, upper dress power unit only provides chassis power unit can not the part power of practical requirement, therefore this power-control method makes Energy harvesting more reasonable, widen power optimum Match interval, obviously energy-conservation.
Accompanying drawing explanation
The accompanying drawing forming a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the power transmission flow chart of the dynamical system of Vehicular concrete pumping equipment of the present invention;
Fig. 2 is the power system architecture schematic diagram of Vehicular concrete pumping equipment of the present invention;
Fig. 3 is the schematic diagram of a kind of hydraulic system in dynamical system of the present invention;
Fig. 4 is the schematic diagram of another kind of hydraulic system in dynamical system of the present invention;
Fig. 5 is the schematic diagram of another hydraulic system in dynamical system of the present invention.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually.1-5 also describes the present invention in detail in conjunction with the embodiments below with reference to the accompanying drawings.
As Fig. 1, shown in Fig. 2 and Fig. 3, the specific embodiment of the invention provides a kind of dynamical system of Vehicular concrete pumping equipment, this Vehicular concrete pumping equipment is described for Vehicle loaded pump or pump truck, Vehicular concrete pumping equipment specifically comprises traveling mechanism 9, master cylinder, oscillating oil cylinder and mixing plant, above-mentioned dynamical system comprises chassis power unit 1, gearbox 2, transfer case 5, upper dress power unit 3, pump group, first oil pump 4 and hydraulic control system 7, wherein, pump group is three oil pumps 6, can certainly be two-throw pump or four-in pump etc., particularly, three oil pumps 6 comprise coaxial the second oil pump 61 arranged, 3rd oil pump 62 and the 4th oil pump 63, chassis power unit 1 is connected with gearbox 2, then power is passed to traveling mechanism 9 respectively by transfer case 5 and three oil pump 6, three oil pumps 6 are connected with hydraulic control system 7, work drive second oil pump the 61, the 3rd oil pump 62 and the 4th oil pump 63 of chassis power unit 1 rotates simultaneously, wherein, second oil pump 61 carries out stirring operation for driving mixing plant, the switching of 3rd oil pump 62 for driving oscillating oil cylinder to carry out distributing valve, 4th oil pump 63 stretches for driving master cylinder, complete suction and stock action, thus carry out the pumpdown of standard, upper dress power unit 3 is connected with the first oil pump 4, first oil pump 4 is connected with hydraulic control system 7, upper dress power unit 3 one aspect provides power for auxiliary operating mode, on the other hand when chassis power unit 1 can not meet pumping operating mode, with chassis power unit 1 jointly for pumping operating mode provides power, above-mentioned hydraulic control system 7 comprises main system 14, oscillator system 13, auxiliary system 12, fuel tank 11, control valve and multiple one way valve 15, second oil pump 61, the 3rd oil pump 62 are connected with main system 14 with auxiliary system 12, oscillator system 13 respectively with the 4th oil pump 63, and are all provided with one way valve 15 between the second oil pump 61 and auxiliary system 12, between the 3rd oil pump 62 and oscillator system 13 and between the 4th oil pump 63 and main system 14, first oil pump 4 is connected with main system 14 with auxiliary system 12, oscillator system 13 respectively by multiple actuator ports of control valve, and each actuator port of control valve is with corresponding auxiliary system 12, be all provided with one way valve 15 between oscillator system 13 and main system 14.
It should be noted that, chassis power unit 1 can be engine in situ, mainly for the traveling of Vehicle loaded pump or pump truck, pumping operating mode and other auxiliary operating mode provide power, but when driving the auxiliary operating modes such as the gathering of water pump, anti-pump, landing leg stretching and jib and expansion when carrying out the stirring in time expecting, carwash, the part oil pump in three oil pumps 6 can be caused to dally, the direct oil sump tank of hydraulic oil, waste energy, and chassis power unit 1 rated power is larger, there is the phenomenon of " low load with strong power ", be unfavorable for energy-conservation.Therefore in order to energy-conservation, above-mentioned auxiliary operating mode adopts above-mentioned upper dress power unit 3 to provide driving force; Above-mentioned upper dress power unit 3 can be upper mounted engine or motor; Above-mentioned main system 14 mainly refers to the hydraulic system meeting master cylinder action, the suction and the stock that are mainly pumping procedure provide power, oscillator system 13 mainly refers to the hydraulic system meeting oscillating oil cylinder action, the switching being mainly distributing valve provides power, drive when support oil cylinder or boom frame telescopic when driving water pump, telescopic outrigger when auxiliary system 12 mainly refers to and meets driving stirring, carwash in time expecting and drive telescopic oil cylinder hydraulic system, or for driving master cylinder or oscillating oil cylinder crawl during repair apparatus, or during low clearance construction without stirring pumping operation.It should be noted that, low clearance here refers to the height lower than 50m.
Being connected in above-mentioned dynamical system, dress power unit 3 is single pumps, i.e. the first oil pump 4, the treble pump compared to existing technology, greatly can save the arrangement space of dynamical system, simplify structure, also help the load alleviating Vehicle loaded pump or pump truck, save energy consumption, in addition, because upper dress power unit 3 is for providing power for auxiliary operating mode, or when chassis power unit 1 can not meet pumping operating mode, upper dress power unit 3 provides pumping required drive to exceed the partial power of the maximum outputting power of chassis power unit 1, with chassis power unit 1 jointly for pumping operating mode provides power, that is compared to existing technology in upper dress power unit 3, the power provided needed for upper dress power unit 3 in the present invention reduces greatly, therefore on this, dress power unit 3 can be accomplished less in power type selecting, and only need drive single pump work, reduce cost and the weight of Vehicle loaded pump and pump truck, the energy consumption of dynamical system is reduced, substantially increase the effective rate of utilization of energy.
The working condition of the dynamical system of the Vehicular concrete pumping equipment in this embodiment mainly contains three kinds of selections, the first, under common pumping operating mode, worked independently by chassis power unit 1, power is passed to three oil pumps 6 by gearbox 2 and transfer case 5 by chassis power unit 1, be hydraulic energy by changes mechanical energy, power is passed to pumping mechanism 8 by hydraulic control system 7 by the hydraulic oil of three oil pumps 6, be mechanical energy by hydraulic energy transfer, drive pumping mechanism 8 to work (stirring mainly comprising master cylinder suction stock, oscillating oil cylinder action and mixing plant), the second, stirring in time expecting, water pump carwash, telescopic outrigger, gathering or under launching the crawl of jib, anti-pump, master cylinder and oscillating oil cylinder and low construction height without auxiliary operating modes such as stirring pumping operations time, upper dress power unit 3 works independently, upper dress power unit 3 is connected with the first oil pump 4, and power is passed to mixing plant, support oil cylinder, oscillating oil cylinder, water pump, master cylinder or boom system 10 by hydraulic control system 7 by hydraulic oil power being passed to the first oil pump 4, first oil pump 4, in addition, in order to prevent plugging in pumping procedure, interim anti-pump or the crawl of master cylinder, can provide power by upper dress power unit 3, under above auxiliary operating mode, the power demand of construction is all smaller, and therefore upper dress power unit 3 is smaller in power type selecting, the third, high capacity, huge discharge pumping operating mode (mainly comprising high building pumping construction), chassis power unit 1 is difficult to meet construction power demand, now upper dress power unit 3 works with chassis power unit 1 simultaneously, chassis power unit 1 and upper dress power unit 3 drive respective oil pump simultaneously, main system 14 and oscillator system 13 is acted on after first oil pump 4 and the 4th oil pump 63 collaborate, common driving pumping mechanism 8 works, now, upper dress power unit 3 need provide construction power demand peak value higher than the part power of the maximum outputting power of chassis power unit 1, therefore upper dress power unit 3 is without the need to providing the high power driving separately pumping mechanism 8 to work, therefore can be less in power type selecting, and this mode of operation is comparatively reasonable in power utilization, avoid the phenomenon of " low load with strong power ", obviously energy-conservation.In addition, the upper dress power unit 3 mentioned in above-described embodiment can also provide power separately for low-rise building construction, and now because construction height is lower, power demand is little, as long as upper dress power unit 3 satisfies the demands; Preferably, the rated power of upper dress power unit 3 is less than the power output of the 4th oil pump 63, now just can realize the object reducing energy consumption, certainly, can also according to actual condition, according to construction experience, for upper dress power unit 3 selects a rational dynamic range, make energy-conservation more obvious.
Particularly, the dynamical system of the Vehicular concrete pumping equipment in this embodiment, the implementation that the hydraulic oil of the first oil pump 4 distributes to main system 14, auxiliary system 12 and oscillator system 13 by demand is had a variety of, below just wherein two kinds of modes be described in detail:
The first, as shown in Figure 3, control valve comprises two-bit triplet electromagnetic valve 17 (can also be two position four-way solenoid valves), three position four-way electromagnetic valve 19, reducing valve 16 and cartridge valve 18, the oil-in of the oil-in of cartridge valve 18, the oil-in of two-bit triplet electromagnetic valve 17 and three position four-way electromagnetic valve 19 is all connected with the oil-out of the first oil pump 4, the actuator port of two-bit triplet electromagnetic valve 17 is connected with the control port of cartridge valve 18, and the oil return opening of two-bit triplet electromagnetic valve 17 is connected with fuel tank 11; The actuator port of cartridge valve 18 is connected with main system 14; Two actuator ports of three position four-way electromagnetic valve 19 are connected with oscillator system 13 with auxiliary system 12 respectively, the oil return opening of three position four-way electromagnetic valve 19 is connected with fuel tank 11, reducing valve 16 is arranged on the oil circuit between control valve and oscillator system 13, certainly can also select to be arranged on the postal route between control valve and main system 14 and/or auxiliary system 12.Specific works principle is: above fill power unit 3 and drive the first oil pump 4, by two-bit triplet electromagnetic valve 17, three position four-way electromagnetic valve 19 and cartridge valve 18 control realization at least four kinds of operating modes: first, the right of two-bit triplet electromagnetic valve 17 and three position four-way electromagnetic valve 19 obtains electric, the left side dead electricity of three position four-way electromagnetic valve 19, the hydraulic oil of the first oil pump 4 enters oscillator system 13 by the right position of three position four-way electromagnetic valve 19, reducing valve 16 and one way valve 15, provides oscillating oil cylinder crawl power; Second, the right of two-bit triplet electromagnetic valve 17 and the left side of three position four-way electromagnetic valve 19 obtain electric, the right dead electricity of three position four-way electromagnetic valve 19, the hydraulic oil of the first oil pump 4 enters auxiliary system 12 by the left position of three position four-way electromagnetic valve 19 and one way valve 15, can complete and treat that material operating mode drives mixing plant, washing operating mode drives water pump, drive landing leg stretching and drive the operating modes such as jib stretching, extension; 3rd, the equal dead electricity in the left side and the right of two-bit triplet electromagnetic valve 17, three position four-way electromagnetic valve 19, the hydraulic oil of the first oil pump 4 enters pumping main system 14 by cartridge valve 18 and one way valve 15, can complete independent master cylinder crawl or collaborate jointly to complete pumping operating mode with the 4th oil pump 63; 4th, the right of two-bit triplet electromagnetic valve 17 and the left side dead electricity of three position four-way electromagnetic valve 19, the right of three position four-way electromagnetic valve 19 obtains electric, the hydraulic oil of the first oil pump 4 enters main system 14 and oscillator system 13 simultaneously, can complete independently in short-term without stirring pumping operating mode, the pumping height of pumping operating mode is now lower, and power demand is less; Certainly, now also pumping operating mode can jointly be completed with the 4th oil pump 63.
The second, as shown in Figure 4, control valve comprises a three-position four-way valve 21 and reducing valve 16, and this three-position four-way valve 21 has an oil-in and three actuator ports, and three actuator ports are connected with auxiliary system 12 with main system 14, oscillator system 13 respectively; Three-position four-way valve 21 is on a station, and wherein two actuator ports are communicated with oil-in, when namely the spool of three-position four-way valve 21 is positioned at meta, in valve inner shunting after hydraulic oil flows into from oil-in, is flowed out by two actuator ports simultaneously; Reducing valve 16 is arranged on the oil circuit between actuator port and oscillator system 13.When the spool of three-position four-way valve 21 is positioned at left position, the hydraulic oil of the first oil pump 4 enters main system 14, jointly provides power for pumping operating mode or complete separately the crawl of master cylinder with the 4th oil pump 63; When the spool of three-position four-way valve 21 is positioned at right position, the hydraulic oil of the first oil pump 4 enters auxiliary system 12, can complete and treat that material operating mode drives mixing plant, washing operating mode drives water pump, telescopic outrigger operating mode to drive the auxiliary operating modes such as supporting leg; When the spool of three-position four-way valve 21 is positioned at meta, the hydraulic oil of the first oil pump 4 enters main system 14 and oscillator system 13 simultaneously, can complete independently in short-term without stirring pumping operating mode, or jointly complete pumping operating mode with the 4th oil pump 63.
In addition, as a kind of preferred embodiment of the present invention, above-mentioned dynamical system can also comprise the 5th oil pump 22 be connected with chassis power unit 1, as shown in Figure 5,5th oil pump 22, for driving boom system 10 and/or the leg system of Vehicular concrete pumping equipment, makes the dynamic range of dress power unit 3 selective larger like this.
The specific embodiment of the invention additionally provides a kind of power-control method of Vehicular concrete pumping equipment, the dynamical system of Vehicular concrete pumping equipment comprises chassis power unit 1 and upper dress power unit 3, the hydraulic control system 7 of described Vehicular concrete pumping equipment comprises main system 14, oscillator system 13 and auxiliary system 12, under auxiliary operating mode, described auxiliary system 12 is driven to work by upper dress power unit 3, under pumping operating mode, drive main system 14 and oscillator system 13 to work by chassis power unit 1 simultaneously, or, combined by chassis power unit 1 and upper dress power unit 3 and drive main system 14, oscillator system 13 works simultaneously.Preferably, under described pumping operating mode, also comprise following action: drive main system 14, oscillator system 13 and auxiliary system 12 to work by chassis power unit 1 simultaneously, or, combined by chassis power unit 1 and upper dress power unit 3 and drive main system 14, oscillator system 13 and auxiliary system 12 to work simultaneously.
As the preferred scheme of one, the power that upper dress power unit 3 provides is the part that Vehicular concrete pumping equipment required drive exceeds the maximum outputting power of chassis power unit 1.
Particularly, in the embodiment of the present invention, the power-control method of Vehicular concrete pumping equipment is specially:
1, chassis power unit 1 can separately for driving cycle and pumping operating mode provide driving force;
2, upper dress power unit 3 can, when construction height is lower, separately for oscillating oil cylinder and master cylinder provide power, be now without stirring pumping operation, and required construction power be less;
3, upper dress power unit 3 is separately for auxiliary operating mode provides power, such as: drive when driving water pump, telescopic outrigger when driving mixing plant, washing in time expecting when support oil cylinder, jib action and drive boom frame telescopic, and the crawl of master cylinder and oscillating oil cylinder;
4, when the power that chassis power unit 1 provides cannot meet construction demand, upper dress power unit 3 and chassis power unit 1, jointly for pumping operating mode provides driving force, exceed the part of chassis power unit 1 peak power output with satisfied construction power demand.
Said pump operating mode comprises driving main system 14 and oscillator system 13 works simultaneously, or the situation driving main system 14, oscillator system 13 and auxiliary system 12 simultaneously to work.
The advantage of the power-control method in the embodiment of the present invention is:
1) power is selected flexibly
According to the demand of power stage during construction, select optimum power matching pattern, start upper dress power unit 3 selectively and work, reduce the phenomenon of " low load with strong power " as far as possible;
2) energy-conservation
Driving cycle is energy-conservation: chassis power unit 1 can carry out type selecting according to the car load demand of travelling, and makes driving cycle power matching more reasonable, more energy-conservation;
Wait to expect etc. that auxiliary operating mode is energy-conservation: above fill power unit 3 power type selecting less, stretching supporting leg, wait to expect to stir, the operating mode such as the crawl of water pump carwash and master cylinder or oscillating oil cylinder uses, power match is more reasonable, more energy-conservation;
Pumping operating mode is energy-conservation: above filling power unit 3 only provides peak power needed for car load to exceed the part of engine in situ, double dynamical selective driving, has widened power optimum Match interval, obviously energy-conservation.
3) flexible arrangement
Two power units are collaborated by hydraulic system, whole dynamical system flexible arrangement;
4) installation cost and weight is reduced
Upper dress power unit 3 type selecting can be accomplished less, and drives single pump work, reduces installation cost and weight.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (13)
1. the dynamical system of a Vehicular concrete pumping equipment, described Vehicular concrete pumping equipment comprises traveling mechanism (9), it is characterized in that, described dynamical system comprises chassis power unit (1), transfer case (5), upper dress power unit (3), pump group, the first oil pump (4) and hydraulic control system (7), the power that described chassis power unit (1) provides selectively passes to traveling mechanism (9) and described pump group by described transfer case (5), and described pump group is connected with described hydraulic control system (7); Described upper dress power unit (3) is connected with the input of the first oil pump (4), and the output of described first oil pump (4) is connected with hydraulic control system (7); Described hydraulic control system (7) comprises main system (14), oscillator system (13) and auxiliary system (12), under auxiliary operating mode, described auxiliary system (12) is driven to work by upper dress power unit (3); Under pumping operating mode, drive main system (14) and oscillator system (13) to work by chassis power unit (1) simultaneously, or, combined by chassis power unit (1) and upper dress power unit (3) drive main system (14), oscillator system (13) works simultaneously.
2. the dynamical system of Vehicular concrete pumping equipment according to claim 1, it is characterized in that, also comprise under described pumping operating mode: drive main system (14), oscillator system (13) and auxiliary system (12) to work by chassis power unit (1) simultaneously, or, combined by chassis power unit (1) and upper dress power unit (3) and drive main system (14), oscillator system (13) and auxiliary system (12) to work simultaneously.
3. the dynamical system of Vehicular concrete pumping equipment according to claim 1 and 2, is characterized in that, main system (14) is for driving master cylinder, and oscillator system (13) is for driving oscillating oil cylinder; Auxiliary system (12) for drive mixing plant, water pump, support oil cylinder and boom frame telescopic oil cylinder at least one of them, or for driving master cylinder or oscillating oil cylinder during repair apparatus, or during low clearance construction without stirring pumping operation.
4. the dynamical system of Vehicular concrete pumping equipment according to claim 3, it is characterized in that, described pump group is three oil pumps (6), comprise coaxial the second oil pump (61), the 3rd oil pump (62) and the 4th oil pump (63) that arrange, wherein, second oil pump (61) connects auxiliary system (12), 3rd oil pump (62) connects oscillator system (13), and the 4th oil pump (63) connects main system (14).
5. the dynamical system of Vehicular concrete pumping equipment according to claim 3, is characterized in that, the rated power of described upper dress power unit (3) is less than the rated output power of the 4th oil pump (63).
6. the dynamical system of Vehicular concrete pumping equipment according to claim 4, it is characterized in that, described hydraulic control system (7) also comprises fuel tank (11), control valve and multiple one way valve (15), is all provided with described one way valve (15) between described second oil pump (61) and auxiliary system (12), between the 3rd oil pump (62) and oscillator system (13) and between the 4th oil pump (63) and main system (14); Described first oil pump (4) is connected with main system (14) with auxiliary system (12), oscillator system (13) respectively by multiple actuator ports of control valve, and each actuator port of described control valve is with corresponding auxiliary system (12), be all provided with described one way valve (15) between oscillator system (13) and main system (14).
7. the dynamical system of Vehicular concrete pumping equipment according to claim 6, it is characterized in that, described control valve comprises two-bit triplet electromagnetic valve (17), three position four-way electromagnetic valve (19) and cartridge valve (18), the oil-in of described cartridge valve (18), the oil-in of two-bit triplet electromagnetic valve (17) and the oil-in of three position four-way electromagnetic valve (19) are all connected with the oil-out of described first oil pump (4), the actuator port of described two-bit triplet electromagnetic valve (17) is connected with the control port of described cartridge valve (18), the oil return opening of described two-bit triplet electromagnetic valve (17) is connected with fuel tank (11), the actuator port of described cartridge valve (18) is connected with described main system (14), two actuator ports of described three position four-way electromagnetic valve (19) are connected with oscillator system (13) with described auxiliary system (12) respectively, and the oil return opening of described three position four-way electromagnetic valve (19) is connected with fuel tank (11).
8. the dynamical system of Vehicular concrete pumping equipment according to claim 6, it is characterized in that, described control valve comprises three-position four-way valve (21), described three-position four-way valve (21) has an oil-in and three actuator ports, three described actuator ports are connected with auxiliary system (12) with described main system (14), oscillator system (13) respectively, described three-position four-way valve (21) is on a station, and the oil-in of described main system (14), oscillator system (13) is connected.
9. the dynamical system of Vehicular concrete pumping equipment according to claim 6, it is characterized in that, described hydraulic control system (7) also comprises reducing valve (16), and described reducing valve (16) is arranged on the oil circuit between described control valve and main system (14) and/or oscillator system (13) and/or auxiliary system (12).
10. the dynamical system of Vehicular concrete pumping equipment according to claim 6, it is characterized in that, described dynamical system also comprises the 5th oil pump (22) be connected with described chassis power unit (1), and described 5th oil pump (22) is for driving boom system (10) and/or the leg system of described Vehicular concrete pumping equipment.
The power-control method of 11. 1 kinds of Vehicular concrete pumping equipments, the dynamical system of described Vehicular concrete pumping equipment comprises chassis power unit (1) and upper dress power unit (3), it is characterized in that, the hydraulic control system (7) of described Vehicular concrete pumping equipment comprises main system (14), oscillator system (13) and auxiliary system (12), under auxiliary operating mode, described auxiliary system (12) is driven to work by upper dress power unit (3), under pumping operating mode, drive main system (14) and oscillator system (13) to work by chassis power unit (1) simultaneously, or, combined by chassis power unit (1) and upper dress power unit (3) and drive main system (14), oscillator system (13) works simultaneously.
The power-control method of 12. Vehicular concrete pumping equipments according to claim 11, it is characterized in that, also comprise under described pumping operating mode: drive main system (14), oscillator system (13) and auxiliary system (12) to work by chassis power unit (1) simultaneously, or, combined by chassis power unit (1) and upper dress power unit (3) and drive main system (14), oscillator system (13) and auxiliary system (12) to work simultaneously.
The power-control method of 13. Vehicular concrete pumping equipments according to claim 11, it is characterized in that, when described chassis power unit (1) can not meet the power demand of Vehicular concrete pumping equipment under pumping operating mode, the power that described upper dress power unit (3) provides is the part that Vehicular concrete pumping equipment required drive exceeds chassis power unit (1) maximum outputting power.
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| CN201410474254.7A CN104405134B (en) | 2014-09-17 | 2014-09-17 | Power system and power control method of vehicle-mounted concrete pumping device |
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| CN201410474254.7A CN104405134B (en) | 2014-09-17 | 2014-09-17 | Power system and power control method of vehicle-mounted concrete pumping device |
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