CN102562096A - Control system and self-travelling type construction machinery with same - Google Patents
Control system and self-travelling type construction machinery with same Download PDFInfo
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- CN102562096A CN102562096A CN2012100280709A CN201210028070A CN102562096A CN 102562096 A CN102562096 A CN 102562096A CN 2012100280709 A CN2012100280709 A CN 2012100280709A CN 201210028070 A CN201210028070 A CN 201210028070A CN 102562096 A CN102562096 A CN 102562096A
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Abstract
The invention relates to a control system, which is characterized in that a concrete pump drives a reversing electromagnetic valve of a cylinder to reverse after time is delayed for 500ms to 1000ms when the reversing electromagnetic valve receives a signal transmitted from a magnetic switch, an emergency pumping power control oil inlet port is connected with an emergency arm support operation preselector valve, a port P of the emergency arm support operation preselector valve is connected with a diesel driving high-pressure water pump preselector valve, a motor normal driving arm support, a supporting leg and cable reel operation function control oil inlet port, a port P of the diesel driving high-pressure water pump preselector valve is connected with a steering priority control valve, a port P of the steering priority control valve is connected with a brake priority control valve, and a port P of the brake priority control valve is connected with a hydraulic oil pump which is arranged on a chassis and used for controlling braking and steering functions. In another technical scheme, the invention provides self-travelling construction machinery with the control system. The control system and the self-travelling construction machinery meet requirements of concrete pumping, simultaneously are simple in structure of mechanisms, and save cost.
Description
Technical field
The present invention relates to a kind of system that under the motor powering-off state or when adopting walking chassis internal-combustion engine mechanomotive force the self-travel type construction machinery is controlled and self-travel type construction machinery with this system.
Background technology
The self-travel type construction machinery is mainly used in underground construction, geotechnical engineering, municipal engineering, especially hydraulic engineering, tunnel construction.The crag that the self-travel type construction machinery is used for behind the tunnel digging sprays moulding by casting, and bank protection and water conservancy construction realize that the operating mode of concrete rapid hardening specific (special) requirements is used.
The self-travel type construction machinery that relates to the concrete spraying unit is made up of concrete pump and spray arm, accelerating admixture pumping system, air compressor system and chassis mobile system five most of institutes.Accessory system has cable hank device, support leg and high-pressure wash pump etc.Concrete pump and spray arm are the equipments of concrete pumping, and motor is that concrete pump and spray arm provide power through external power supply.Additive pump system is made up of accelerating admixture water tank and accelerating admixture pump, and the accelerating admixture stringing fully mixes with concrete until the compressed air that in the mixed flow device, provides through air compressor machine, realizes concrete is sprayed fast and solidifies.The walking mechanism of this type of self-travel type walking machine provides the chassis driving dynamics by internal combustion engine drives hydraulic traveling oil pump, and the auxiliary oil pump that is connected with the oil pump that goes provides the chassis skidding and the hydraulic power of function such as turns to.
In the pumping control system of routine, the commutation loop of the driving loop of concrete pump oil cylinder and S valve pendulum valve oil cylinder drives and realizes synchronous communicating control by two independent oil pumps respectively usually.Main pump is a two-way variable displacement pump, and hydraulic oil gets into the concrete pump driving oil cylinder, and when the oil cylinder piston bar is advanced to the magnetic switch at oil cylinder two ends, magnetic switch sends commutation signal, the switching-over servo valve of control main oil pump.
S valve pendulum valve oil cylinder be by constant pressure pump and the supporting use of accumulator in hydraulic circuit.When energy storage pressure is set in a certain maximum pressure value, constant pressure pump under its servo-cylinder effect, swash plate inclination zero-bit, pressure oil exports zero.Constant pressure pump can make hydraulic system after reaching the force value of setting, does not have pressure oil output, is in non-power power save mode, generates heat with the minimizing system.Accumulator is put in the valve oil cylinder exchange system hydraulic circuit at the S valve as energy accumulating device; Its predominant use is; For this exchange system loop in the hydraulic system of the intermittent operation operating mode of being everlasting, supporting use accumulator apparatus, moment provides very big fuel delivery; Realize that the tilt cylinder switching-over accomplished rapid commutation function in 0.5 second extremely short time, overcome to guarantee pendulum valve oil cylinder that concrete resistance and S reversal valve self gravitation solve the technology that switching-over puts in place in the hopper.
The self-travel type construction machinery is in the tunnel, in mine and the water conservancy project because the factors such as discarded discharging of considering air permeability and avoiding producing carbon dioxide generally mainly provide the equipment dynamic supply with motor.Motor is that concrete pump and spray arm provide hydraulic power through external power supply in entire equipment.Air compressor machine is also by motor driven independently.Yet in constructions such as tunnel, often run into following supply of electric power problem: owing to reasons such as power failures, the situation that having a power failure appears in building-site happens occasionally; And it is generally distant in tunnel construction place decentre transformer station distance; Electricity cable neither be enough thick; So that the receiving voltage of self-travel type construction machinery can not get normal needed voltage because of line loss; Usually lower by about 5% than normal, reach 20% even lower when serious, at this moment the motor cisco unity malfunction.
Under concrete pump pumping state; In case the motor cisco unity malfunction, hopper, S valve; Concrete emptying and cleaning up rapidly in the defeated material of concrete cylinder and a whole set of concrete hard tube, the defeated material flexible pipe; Otherwise under the situation that electric power can not in time recover, concrete can harden in a whole set of pipeline system, thereby causes very large economic loss.
In order to address the above problem; Need use emergent pumping system; The emergent pumping system that in concrete pumping machinery and wet shot machine field, adopts usually at present is the independent auxiliary oil pump that provides Hydraulic Station to drive power or connect through internal combustion engine by external power source, manually realizes switching-over of operation in tandem tilt cylinder and concrete pump oil cylinder pump function through hydraulic control valve.The shortcoming of this system is: 1, manual operation is inconvenient, pumping discrete, and pump displacement speed is slow; 2, external Hydraulic Station drives or installs independent auxiliary oil pump, expensive, and inconvenient operation.
Summary of the invention
The purpose of this invention is to provide and a kind ofly can realize that pump displacement is big, pressure is high, and need not the pumping control system of external equipment.Another object of the present invention provides a kind of self-travel type construction machinery with this system.
In order to achieve the above object; A technical scheme of the present invention has provided a kind of control system; Comprise chassis steering control system, chassis brake control system and pumping control system; It is characterized in that: in chassis steering control system and chassis brake control system, be respectively equipped with and turn to preferential control valve and the preferential control valve that brakes; Turn to an end of preferential control valve to connect the high-pressure hydraulic pump control valve that system is controlled in pumping, the other end connects the preferential control valve of brake, and an end of the preferential control valve that brakes connects the brake accumulator of chassis brake control system; The other end connects the hydraulic oil pump of pumping control system, and pendulum valve oil cylinder solenoid operated directional valve in the pumping control system and concrete pump driving oil cylinder reversing solenoid valve are through the PLC control of delaying time.
Preferably, said pendulum valve oil cylinder solenoid operated directional valve is switching-over immediately after obtaining the signal that magnetic switch provides, and said concrete pump driving oil cylinder reversing solenoid valve commutates behind the time-delay 500ms-1000ms behind the signal that magnetic switch provides obtaining.
Preferably; Said pumping control system comprises that concrete pump driving oil cylinder and S valve pendulum valve oil cylinder connect concrete pump driving oil cylinder reversing solenoid valve and pendulum valve oil cylinder solenoid operated directional valve respectively; The concrete pump driving oil cylinder is through the switching-over of magnetic switch control concrete pump driving oil cylinder reversing solenoid valve and pendulum valve oil cylinder solenoid operated directional valve; Concrete pump driving oil cylinder reversing solenoid valve and pendulum valve oil cylinder solenoid operated directional valve connect emergent pumping dynamic Control oil-in through an one way valve respectively; Emergent pumping dynamic Control oil-in connects emergent jib operation preselector valve; Emergent jib operation preselector valve also connects emergent jib and supporting leg, cable hank operating function control oil-in; The P mouth connection diesel driven high-pressure hydraulic pump preselector valve of emergent jib operation preselector valve and motor driven jib and supporting leg, cable hank operating function control oil-in; The P mouth of emergent jib operation preselector valve or with emergent pumping dynamic Control oil-in conducting or with emergent jib and supporting leg, the conducting of cable hank operating function control oil-in, diesel driven high-pressure hydraulic pump preselector valve is the high-pressure hydraulic pump fuel feeding simultaneously.
Preferably, the connection of the P mouth of said diesel driven high-pressure hydraulic pump preselector valve turns to preferential control valve, and turning to preferential control valve is the steering gear fuel feeding of said chassis steering control system.
Preferably, the said P mouth of preferential control valve that turns to connects the preferential control valve of said brake.
Preferably, said emergent pumping dynamic Control oil-in connects the P mouth that stirs safe sudden-stop function electromagnetic valve through one way valve, and the T mouth that stirs safe sudden-stop function electromagnetic valve connects its A mouth through safety valve; Stir the B mouth off-load oil sump tank of safe sudden-stop function electromagnetic valve; Stir the grid security plate of safe sudden-stop function electromagnetic valve on hopper and put down and get electricly when contacting with hopper, at this moment, its P mouth is to its A mouth conducting; Otherwise its P mouth is to its B mouth conducting.
Preferably, the P mouth of the preferential control valve of said brake connects and is used to control the hydraulic oil pump that brakes and turn to function on the chassis.
Another technical scheme of the present invention has provided a kind of self-travel type construction machinery with above-mentioned control system; Comprise mobile chassis; On mobile chassis, be provided with accelerating admixture pump, high-pressure wash pump, air compressor system, cable hank device, concrete pump and spray arm; Below mobile chassis, be provided with support legs, it is characterized in that: high-pressure wash pump, cable hank device, concrete pump, spray arm and support legs are by above-mentioned control system control.
The control system of a kind of self-travel type construction machinery provided by the invention; Under the situation of no external power supply power supply; Need not external Hydraulic Station or increasing under the prerequisite of any auxiliary oil pump for the self-travel type walking machine; To walk the existing hydraulic power system in chassis as power source, utilize hydraulic control valve to realize timely, the automatic switchover of tilt cylinder and concrete pump oil cylinder, accomplish safe pumping.And can guarantee to satisfy the performance indications that concrete pumping performance and safe transport require.And residual concrete pumping in carrier pipe and the hopper gone out, and realize whole conveyance conduit cleaning function.
The present invention has following advantage:
1, control provided by the invention system can guarantee to satisfy the pumping requirement that adapts to concrete pumping, can realize that pump displacement is big, the performance that pressure is high.For the concrete of pumpability difference, can not produce the plugging phenomenon.Can realize that pumping controls function automatically.Simple to operate very convenient.
2, owing to utilizing the mobile chassis hydraulic power in realizing emergent automatic pumping device under the prerequisite that does not have external Hydraulic Station or any auxiliary oil pump, mechanism structure is simple, practices thrift cost.Install simultaneously, maintenance, maintenance waits also very convenient, good economy performance.
3, the emergent automatic pumping device of concrete spraying machine has effectively solved building-site and has occurred under the power failure situation; Residual concrete in rapid emptying and the cleaning concrete feeding pipe; And the two high-pressure hydraulic pumps that drive of cooperation; Can assist the cleaning of accomplishing complete machine, for the construction of shotcrete in tunnel and water conservancy project brings effective economic benefit and construction safety guarantee.
Description of drawings
Fig. 1 is a kind of self-travel type construction machinery provided by the invention;
Fig. 2 is the fundamental diagram of emergent pumping;
Fig. 3 is a kind of sketch map of controlling system provided by the invention.
The specific embodiment
For making the present invention more obviously understandable, now with a preferred embodiment, and conjunction with figs. elaborates as follows.
As shown in Figure 1; The invention provides a kind of self-travel type construction machinery; Comprise mobile chassis 18; On mobile chassis 18, be provided with accelerating admixture pump 19, high-pressure wash pump 10, air compressor system 20, cable hank device 21, concrete pump 22 and spray arm 23, below mobile chassis 18, be provided with support legs 24, high-pressure wash pump 10, cable hank device 21, concrete pump 22, spray arm 23 and support legs 24 are controlled by the control system.
Like Fig. 2 and shown in Figure 3; This control system comprises concrete pump driving oil cylinder 12 and S valve pendulum valve oil cylinder 13, and concrete pump driving oil cylinder 12 and S valve pendulum valve oil cylinder 13 connect concrete pump driving oil cylinder reversing solenoid valve 17 and pendulum valve oil cylinder solenoid operated directional valve 16 respectively.When the piston rod of concrete pump driving oil cylinder 12 was advanced to the magnetic switch at oil cylinder two ends, magnetic switch sent commutation signal, the switching-over action of control concrete pump driving oil cylinder reversing solenoid valve 17 and pendulum valve oil cylinder solenoid operated directional valve 16.Because S valve pendulum valve oil cylinder 13 need overcome the self gravitation of concrete resistance and S reversal valve in the hopper; When concrete pump driving oil cylinder 12 and S valve pendulum valve oil cylinder 13 obtains supplying with simultaneously; S valve pendulum valve oil cylinder 13 is under the state that does not have accumulator work; Switching-over slowly, and since the concrete in the hopper possibly to produce switching-over not in place, put in place switching-over with concrete pump driving oil cylinder 12 of the switching-over of S valve pendulum valve oil cylinder 13 puts in place and action asynchronous and that lag behind occurred.
In order to address the above problem, in the present embodiment, after obtaining the magnetic switch commutation signal; 16 switching-overs immediately of pendulum valve oil cylinder solenoid operated directional valve, but concrete pump driving oil cylinder reversing solenoid valve 17 is after obtaining commutation signal, and oil circuit is in the dead electricity meta through electromagnetic valve; And accurately the control time-delay is provided with scope in 500ms-1000ms; Behind the time-delay 500ms-1000ms, concrete pump driving oil cylinder reversing solenoid valve 17 gets electric switching-over, the 12 beginning pumping work of concrete pump driving oil cylinder; When concrete pump driving oil cylinder piston rod is advanced to the magnetic switch at oil cylinder two ends, magnetic switch sends commutation signal and repeats above switching-over action once more.The purpose that the 17 switching-over time-delays of concrete pump driving oil cylinder reversing solenoid valve are provided with is that the oil mass that is obtained by emergent pumping dynamic Control oil inlet P 6 is concentrated S valve pendulum valve oil cylinder 13 fuel feeding; Moment provides very big fuel delivery; Realize S valve pendulum valve oil cylinder 13 switching-overs completion switching-over rapidly in 0.5 second extremely short time; To guarantee that S valve pendulum valve oil cylinder 13 overcomes that concrete resistance and S reversal valve self gravitation solve the technology that switching-over puts in place in the hopper, guaranteed the synchronous coordination property of S valve pendulum valve oil cylinder 13 with 12 switching-overs of concrete pump driving oil cylinder, guaranteed the uninterrupted pumping property of emergency operations system; Thereby it is big to reach pump displacement, the purpose that output pressure is high.
Concrete pump driving oil cylinder reversing solenoid valve 17 and pendulum valve oil cylinder solenoid operated directional valve 16 connect emergent pumping dynamic Control oil inlet P 6 through an one way valve respectively; Emergent pumping dynamic Control oil inlet P 6 connects emergent jib operation preselector valve 9; Emergent jib operation preselector valve 9 also connects emergent jib and supporting leg, the cable hank operating function is controlled oil inlet P 4; The P mouth connection diesel driven high-pressure hydraulic pump preselector valve 8 of emergent jib operation preselector valve 9 and motor driven jib and supporting leg, cable hank operating function control oil inlet P 1; The P mouth of emergent jib operation preselector valve 9 or with 6 conductings of emergent pumping dynamic Control oil inlet P or with emergent jib and supporting leg, 4 conductings of cable hank operating function control oil inlet P; Diesel driven high-pressure hydraulic pump preselector valve 8 is high-pressure hydraulic pump 10 fuel feeding simultaneously; The P mouth connection of diesel driven high-pressure hydraulic pump preinjection valve 8 turns to preferential control valve 6, turns to preferential control valve 6 to be steering gear 7 fuel feeding, turns to the P mouth of preferential control valve 6 to connect the preferential control valve 4 of brake; On the preferential control valve 4 of brake, be connected with brake accumulator 5, the P mouth of the preferential control valve 4 that brakes connects and is used to control the hydraulic oil pump 3 that brakes and turn to function on the chassis.
This control system power adopt the existing hydraulic oil pump 3 on self-travel type construction machinery walking chassis, the effect of this oil pump provides chassis turning to and the skidding function in going.The hydraulic oil pump 3 general hydraulic traveling oil pumps 2 that have hydraulic traveling motor 11 that connect, hydraulic traveling oil pump 2 connects internal combustion engine 1.This hydraulic oil pump 3 is a constant pressure pump, and when the highest system pressure that the system pressure of hydraulic circuit reaches that constant pressure pump is provided with, hydraulic oil pump 3 is under its servo-cylinder effect, and swash plate is classified as zero-bit, and pressure oil exports zero.Constant pressure pump can make hydraulic system after reaching the force value of setting, does not have pressure oil output, is in non-power power save mode, generates heat with the minimizing system.Because brake and turn to function in the oil piping system of chassis for the intermittent work operating mode, very big fuel delivery is provided by brake accumulator moment, guarantee the brake safety braking functions.
The hydraulic oil that hydraulic oil pump 3 provides gets into the P mouth of diesel driven high-pressure hydraulic pump preselector valve 8 again through braking preferential control valve 4 and turn to preferential control valve 6 through P2 mouth (this mouthful do not having brake and turning to the power source that provides under the function prerequisite for hydraulic oil pump under the operating mode of internal combustion engine).Brake the acting as of preferential control valve 6: the oil circuit that is come out by hydraulic oil pump 3 gives the brake accumulator 5 fuel feeding from the P mouth oil-feed of the preferential control valve 6 that brakes through one way valve and A mouth.After reaching the maximum pressure of brake accumulator 5, hydraulic oil is pushed into the reversal valve left side through damping hole with spool, and the P mouth of the preferential control valve 6 that brakes is given its A mouth and S confession oil.Brake does not have under the prerequisite of action, and the oil of S mouth directly leads to the P mouth that turns to preferential control valve 6.Same operating principle is turning under the prerequisite that does not have action, and the oil of the P mouth of preferential control valve 6 is directly through turning to preferential control valve to get into its EF mouth.
Get under the electric situation at diesel driven high-pressure hydraulic pump preselector valve 8, hydraulic oil drives high-pressure hydraulic pumps 10 work through high-pressure hydraulic pump oil inlet P 7.
Diesel driven high-pressure hydraulic pump preselector valve 8 must not the electricity situation under; Hydraulic oil directly gets into emergent jib operation preselector valve 9 through the P2 mouth; P mouth through the emergent jib operation of the emergent concrete pump pumping on the electric control box panel and jib preselection switch control preselector valve 9 or with 6 conductings of emergent pumping dynamic Control oil inlet P or with emergent jib and supporting leg, 4 conductings of cable hank operating function control oil inlet P, thereby realize the handover operation of emergent concrete pump pumping and jib/supporting leg/cable hank.When under emergent jib operation preselector valve 9 power failure states; The P mouth of emergent jib operation preselector valve 9 is connected with the B mouth, and hydraulic oil directly gets into emergent jib and supporting leg, cable hank operating function through emergent jib operation preselector valve 9 and controls oil inlet P 4 meet an urgent need jib and supporting leg cable hank operating function.When getting under the electricity condition at emergent jib operation preselector valve 9, the P mouth and the A mouth of emergent jib operation preselector valve 9 are connected, and export hydraulic oil through emergent pumping dynamic Control oil inlet P 6.At this moment, and, can realize the synchronous automatic reverse function of the automatic pumping and the S valve pendulum valve oil cylinder 13 of concrete pump driving oil cylinder 12 automatically through selecting the positive pump and the anti-pump button of emergent pumping.
Emergent pumping dynamic Control oil inlet P 6 connects the P mouth that stirs safe sudden-stop function electromagnetic valve 14 through one way valve; The T mouth that stirs safe sudden-stop function electromagnetic valve 14 connects its A mouths through safety valve 15, stirs the B mouth off-load oil sump tank of safe sudden-stop function electromagnetic valve 14, stirs the grid security plate of safe sudden-stop function electromagnetic valve 14 on hopper and puts down when contacting with hopper and get; At this moment; Its P mouth is to its A mouth conducting, otherwise its P mouth is to its B mouth conducting.
Emergent pumping dynamic Control oil inlet P 6 at first gets into and stirs safe sudden-stop function electromagnetic valve 14 get into concrete pump driving oil cylinder reversing solenoid valve 17 and pendulum valve oil cylinder solenoid operated directional valve 16 respectively through two one way valves before.Limit switch has been installed on the hopper; Only put down when contacting when the grid security plate on the hopper with hopper; Stir safe sudden-stop function electromagnetic valve 14 electric, emergent pumping dynamic Control oil inlet P 6 to the oil-feed of A mouth, is set up system back pressure from the P mouth that stirs safe sudden-stop function electromagnetic valve 14; When emergent pumping dynamic Control oil inlet P 6 system pressures surpass the maximum pressure of safety valve 15 settings, the off-load oil sump tank.Otherwise under the state that the grid security plate on the hopper is opened, stirring safe sudden-stop function electromagnetic valve 14 must not electricity, emergent pumping dynamic Control oil inlet P 6 from the P mouth that stirs safe sudden-stop function electromagnetic valve 14 to the oil-feed of B mouth, direct off-load oil sump tank.
The application system of this control system and integrated pair of driving water pump has realized the automatic pumping function through hydraulic pressure and electric integrated control, and guarantees the safety of pumping system, and its characteristics are:
1) continuity pumping, (and it is big to reach pump displacement---8-10m
3Hour, output pressure is high---and 75bar) for the concrete of pumping difference, can not produce the plugging phenomenon, guarantee smoothly along the line transportation performance.Common emergent pumping operation is to need external power source, or conventional through hydraulic control valve, manually controls the switching-over and the pumping operation of tilt cylinder and concrete pump oil cylinder.Should only need to transfer change-over switch to engine mode from outer powering mode by anxious automatic pumping device, starting apparatus combustion engine is selected emergent pumping preselection switch, presses emergent pumping or emergent anti-switch pump, realizes pump function automatically.
2) this control system also is with in the application of self-travel type construction machinery and stirs safe sudden-stop function.When under emergent pumping duty, the hopper Turbogrid plates are opened, and pendulum valve switching-over oil cylinder and concrete pump oil cylinder quit work.Prevent that people or other object from getting into hopper, and cause personal injury.Guarantee the safety of emergent pumping.
3) power source of this control system simultaneously through reversal valve control also integrated the function of two driving water pumps.After emergency operation, residual concrete pumping in carrier pipe and the hopper is gone out, use two driving water pumps can assist the cleaning of accomplishing complete machine.
Claims (8)
1. control system; Comprise chassis steering control system, chassis brake control system and pumping control system; It is characterized in that: in chassis steering control system and chassis brake control system, be respectively equipped with and turn to preferential control valve (6) and the preferential control valve (4) that brakes; Turn to an end of preferential control valve (6) to connect the high-pressure hydraulic pump control valve (6) that system is controlled in pumping; The other end connects brake preferential control valve (4); The end of preferential control valve (4) of braking connects the brake accumulator (5) of chassis brake control system, and the other end connects the hydraulic oil pump (3) of pumping control system, and pendulum valve oil cylinder solenoid operated directional valve (16) in the pumping control system and concrete pump driving oil cylinder reversing solenoid valve (17) are through the PLC control of delaying time.
2. a kind of control as claimed in claim 1 system; It is characterized in that: said pendulum valve oil cylinder solenoid operated directional valve (16) is switching-over immediately after obtaining the signal that magnetic switch provides, and said concrete pump driving oil cylinder reversing solenoid valve (17) commutates behind the time-delay 500ms-1000ms behind the signal that magnetic switch provides obtaining.
3. a kind of control as claimed in claim 1 system; It is characterized in that: said pumping control system comprises that concrete pump driving oil cylinder (12) and S valve pendulum valve oil cylinder (13) connect concrete pump driving oil cylinder reversing solenoid valve (17) and pendulum valve oil cylinder solenoid operated directional valve (16) respectively; Concrete pump driving oil cylinder (12) is through the switching-over of magnetic switch control concrete pump driving oil cylinder reversing solenoid valve (17) and pendulum valve oil cylinder solenoid operated directional valve (16); Concrete pump driving oil cylinder reversing solenoid valve (17) and pendulum valve oil cylinder solenoid operated directional valve (16) connect emergent pumping dynamic Control oil-in (P6) through an one way valve respectively; Emergent pumping dynamic Control oil-in (P6) connects emergent jib operation preselector valve (9); Emergent jib operation preselector valve (9) also connects emergent jib and supporting leg, the cable hank operating function is controlled oil-in (P4); The P mouth connection diesel driven high-pressure hydraulic pump preselector valve (8) of emergent jib operation preselector valve (9) and motor driven jib and supporting leg, cable hank operating function control oil-in (P1); The P mouth of emergent jib operation preselector valve (9) or with (P6) conducting of emergent pumping dynamic Control oil-in or with emergent jib and supporting leg, the conducting of cable hank operating function control oil-in (P4), diesel driven high-pressure hydraulic pump preselector valve (8) is high-pressure hydraulic pump (10) fuel feeding simultaneously.
4. a kind of control as claimed in claim 3 system is characterized in that: the P mouth of said diesel driven high-pressure hydraulic pump preselector valve (8) connects and turns to preferential control valve (6), turns to preferential control valve (6) to be steering gear (7) fuel feeding of said chassis steering control system.
5. a kind of control as claimed in claim 4 system, it is characterized in that: the said P mouth of preferential control valve (6) that turns to connects the preferential control valve of said brake (4).
6. a kind of control as claimed in claim 3 system; It is characterized in that: said emergent pumping dynamic Control oil-in (P6) connects the P mouth that stirs safe sudden-stop function electromagnetic valve (14) through one way valve; The T mouth that stirs safe sudden-stop function electromagnetic valve (14) connects its A mouth through safety valve (15), stirs the B mouth off-load oil sump tank of safe sudden-stop function electromagnetic valve (14), stirs the grid security plate of safe sudden-stop function electromagnetic valve (14) on hopper and puts down when contacting with hopper and get; At this moment; Its P mouth is to its A mouth conducting, otherwise its P mouth is to its B mouth conducting.
7. a kind of control as claimed in claim 1 system is characterized in that: the P mouth of the preferential control valve of said brake (4) connects and is used to the hydraulic oil pump (3) controlling the brake and turn to function on the chassis.
8. one kind has the self-travel type construction machinery of controlling system according to claim 1; Comprise mobile chassis (18); On mobile chassis (18), be provided with accelerating admixture pump (19), high-pressure wash pump (10), air compressor system (20), cable hank device (21), concrete pump (22) and spray arm (23); Be provided with support legs (24) in mobile chassis (18) below, it is characterized in that: high-pressure wash pump (10), cable hank device (21), concrete pump (22), spray arm (23) and support legs (24) are controlled by the described control of claim 1 system.
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| CN201210028070.9A CN102562096B (en) | 2012-02-09 | 2012-02-09 | Control system and self-travelling type construction machinery with same |
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| CN201210028070.9A CN102562096B (en) | 2012-02-09 | 2012-02-09 | Control system and self-travelling type construction machinery with same |
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| CN102562096B CN102562096B (en) | 2014-06-25 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108089541A (en) * | 2018-01-31 | 2018-05-29 | 中铁工程装备集团有限公司 | A kind of TBM mixing sprayer electric control systems based on PLC |
| CN110318779A (en) * | 2019-06-05 | 2019-10-11 | 湖南希法工程机械有限公司 | Wet shot trolley |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| IT202100015947A1 (en) * | 2021-06-18 | 2022-12-18 | Cifa Spa | MOBILE WORKING MACHINE AND METHOD OF OPERATION OF SUCH MOBILE WORKING MACHINE |
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| CN2801570Y (en) * | 2005-04-11 | 2006-08-02 | 吉林大学 | Active antislid integrated control system |
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| US20050232069A1 (en) * | 2004-04-19 | 2005-10-20 | Dns Co., Ltd. | Concrete-mortar transfer system of concrete pump car |
| CN1796669A (en) * | 2004-12-29 | 2006-07-05 | 斗山英维高株式会社 | Fluid pump control device for wheel loaders |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108089541A (en) * | 2018-01-31 | 2018-05-29 | 中铁工程装备集团有限公司 | A kind of TBM mixing sprayer electric control systems based on PLC |
| CN108089541B (en) * | 2018-01-31 | 2023-09-15 | 中铁工程装备集团有限公司 | TBM mixed spraying device electric control system based on PLC |
| CN110318779A (en) * | 2019-06-05 | 2019-10-11 | 湖南希法工程机械有限公司 | Wet shot trolley |
| CN110318779B (en) * | 2019-06-05 | 2020-10-27 | 湖南希法工程机械有限公司 | Wet spraying trolley |
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| CN102562096B (en) | 2014-06-25 |
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Effective date of registration: 20170525 Address after: 410100 Changsha economic and Technological Development Zone, Hunan City, the 31 industrial city Co-patentee after: Putzmeister (Shanghai) Enterprise Management Limited Patentee after: SANY Automobile Manufacturing Co., Ltd. Address before: 201613, No. 39, Jing Jing Road, Songjiang Industrial Zone, Shanghai, Songjiang District Co-patentee before: Putzmeister Machinery (Shanghai)Co., Ltd. Patentee before: Shanghai Automobile Refit Factory Co., Ltd. |