CN108317114A - A kind of automobile-used feeding equipment control system of sand throwing fire extinguishing - Google Patents

A kind of automobile-used feeding equipment control system of sand throwing fire extinguishing Download PDF

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Publication number
CN108317114A
CN108317114A CN201810261825.7A CN201810261825A CN108317114A CN 108317114 A CN108317114 A CN 108317114A CN 201810261825 A CN201810261825 A CN 201810261825A CN 108317114 A CN108317114 A CN 108317114A
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CN
China
Prior art keywords
hydraulic cylinder
chamber
valve
side hydraulic
big chamber
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Granted
Application number
CN201810261825.7A
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Chinese (zh)
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CN108317114B (en
Inventor
杜辰蕊
魏广娟
张勇
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Jiangsu XCMG Construction Machinery Institute Co Ltd
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Construction Machinery Branch of XCMG
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Priority to CN201810261825.7A priority Critical patent/CN108317114B/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/20Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors controlling several interacting or sequentially-operating members
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G65/00Loading or unloading
    • B65G65/005Control arrangements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/20Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors controlling several interacting or sequentially-operating members
    • F15B11/205Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors controlling several interacting or sequentially-operating members the position of the actuator controlling the fluid flow to the subsequent actuator
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/06Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/07Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors in distinct sequence
    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C31/00Delivery of fire-extinguishing material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2201/00Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
    • B65G2201/04Bulk
    • B65G2201/045Sand, soil and mineral ore
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/80Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
    • Y02A40/81Aquaculture, e.g. of fish

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

The present invention relates to a kind of automobile-used feeding equipment control systems of sand throwing fire extinguishing, belong to hydraulic pressure and electrical applications technical field, including actuating unit, fuel tank, hydraulic pump, detection valve, two-position four-way solenoid directional control valve, control valve, left side hydraulic cylinder, intermediate hydraulic cylinder, right side hydraulic cylinder, it is characterized in that, actuating unit provides power to hydraulic pump;Hydraulic pump is connected to fuel tank;Hydraulic pump oil outlet P connection two-position four-way solenoid directional control valves, two-position four-way solenoid directional control valve are connected with detection valve.This control system realizes the feeding and discharging of material by controlling the break-make of hydraulic cylinder oil circuit, the amount of feeding of detection material in real time, hydraulic system is controlled, material is avoided to feed the generation of excessive putty, complete machine is set to be operated in optimal working point, human operational error is greatly reduced, the advantages that material large carrying capacity, integrated level are high, simple system is reliable is provided simultaneously with.

Description

A kind of automobile-used feeding equipment control system of sand throwing fire extinguishing
Technical field
The present invention relates to a kind of automobile-used feeding equipment control systems of sand throwing fire extinguishing, belong to hydraulic pressure and electrical applications technology neck Domain.
Background technology
Sand throwing extinguishing vehicle is applied to fire-fighting, can be used for avoiding water, foam, carbon dioxide special fire put out, improving Fire-fighting efficiency reduces in rescue danger etc. development and has played great function, is related to the hair continuously and healthily of national economy Exhibition.Domestic large size sand throwing extinguishing vehicle is also in blank stage, since the feeding equipment of sand throwing extinguishing vehicle is main executing agency, Needing individual storage device to occupy using traditional belt conveying, vehicle space is big, and feeding equipment has carrying storage and conveying object The dual property of material, and the amount of feeding of material can not be detected in real time in the prior art, control effectively to hydraulic system, material Putty can occur for feeding process, it is difficult to complete machine be made to be operated in optimal working point.
Invention content
In view of the deficiencies of the prior art, the present invention provides a kind of automobile-used feeding equipment control systems of sand throwing fire extinguishing.This control System realizes the feeding and discharging of material by controlling the break-make of hydraulic cylinder oil circuit, the amount of feeding of material is detected in real time, to hydraulic pressure System is controlled, and avoids material from feeding the generation of excessive putty, complete machine is made to be operated in optimal working point, is greatly reduced artificial Operation error is provided simultaneously with the advantages that material large carrying capacity, integrated level are high, simple system is reliable.
In order to achieve the above-mentioned object of the invention, the present invention uses following technical scheme:A kind of automobile-used feeding equipment of sand throwing fire extinguishing Control system, including actuating unit, fuel tank, hydraulic pump, detection valve, two-position four-way solenoid directional control valve, control valve, left side hydraulic pressure Cylinder, intermediate hydraulic cylinder, right side hydraulic cylinder, which is characterized in that actuating unit provides power to hydraulic pump;Hydraulic pump connects with fuel tank It is logical;Hydraulic pump oil outlet P connection two-position four-way solenoid directional control valves, two-position four-way solenoid directional control valve are connected with detection valve;Detect valve A, respectively it is divided into two-way for B mouthfuls, A mouthfuls are connected with the big chamber in right side hydraulic cylinder lower end all the way, and another way is connected with control valve;Detect B mouthfuls of valve It is connected all the way with the big chamber in left side hydraulic cylinder upper end, another way is connected with control valve;Control valve is A1 mouthfuls big with left side hydraulic cylinder lower end Chamber is connected, and B1 mouthfuls of control valve is connected with the big chamber in right side hydraulic cylinder upper end;The big chamber in left side hydraulic cylinder upper end and left side hydraulic cylinder lower end Small chamber is connected, and the big chamber in left side hydraulic cylinder upper end passes through left side hydraulic cylinder upper end check valve and the big chamber phase in intermediate hydraulic cylinder upper end Even;The intermediate big chamber in hydraulic cylinder upper end is connected with the small chamber in intermediate hydraulic cylinder lower end, and the big chamber in intermediate hydraulic cylinder upper end passes through intermediate fluid Cylinder pressure upper end check valve is connected with the big chamber in right side hydraulic cylinder upper end;The big chamber in right side hydraulic cylinder upper end and the small chamber in right side hydraulic cylinder lower end It is connected;The big chamber in right side hydraulic cylinder lower end is connected with the small chamber in right side hydraulic cylinder upper end, and the big chamber in right side hydraulic cylinder lower end passes through right side Hydraulic cylinder lower end check valve is connected with the big chamber in intermediate hydraulic cylinder lower end;The intermediate big chamber in hydraulic cylinder lower end and intermediate hydraulic cylinder upper end are small Chamber is connected, and is connected with the big chamber in left side hydraulic cylinder lower end by intermediate hydraulic cylinder lower end check valve;The big chamber in left side hydraulic cylinder lower end It is connected with the small chamber in left side hydraulic cylinder upper end.
Further, overflow valve is connect by hydraulic pump oil outlet P.The oil return line of the control system connects filter.
Detecting valve includes:Reversal valve, reversing bar, detection lug II, detection lug I;Reversing bar connects reversal valve, and reversing bar is not With position connecting detection piece II, detection lug I.
Left side hydraulic cylinder includes:The big chamber in lower end, the small chamber in lower end, the big chamber in upper end, upper end check valve, the small chamber in upper end, detection plate II, the first mount holder;The big chamber in lower end, the small chamber in lower end separate in lower cylinder body and by piston and piston rod, the big chamber position in lower end Below the small chamber in lower end;The big chamber in upper end, the small chamber in upper end separate in upper cylinder body and by piston and piston rod, and the big chamber in upper end is located at Above the small chamber in upper end;Upper end check valve is connected to left side hydraulic cylinder upper end and is connected to the big chamber in upper end;First mount holder is fixed In being equipped with detection plate II on left side hydraulic cylinder piston rod, the first mount holder;Detection plate II is used for the detection lug with detection valve II contact is detached from;When detection plate II touches the detection lug II of detection valve, valve commutation work is detected.The big chamber in lower end, lower end are small Chamber, the big chamber in upper end, the small chamber in upper end magnitude relationship be not certain, can change with the mobile magnitude relationship of piston rod, The big chamber in lower end, the small chamber in lower end are in the lower cylinder body of left side hydraulic cylinder and the big chamber in lower end is located at below the small chamber in lower end;The big chamber in upper end, on It holds small chamber in upper cylinder body and the big chamber in upper end is located above the small chamber in upper end, it is the same below.It is referred to as the second chamber of lower end, lower end One chamber, the first chamber of upper end, the second chamber of upper end, it is the same below.
Intermediate hydraulic cylinder includes:Lower end check valve, the big chamber in lower end, the big chamber in upper end, upper end check valve, the small chamber in upper end, lower end Small chamber, the second mount holder;The big chamber in lower end, the small chamber in lower end separate in lower cylinder body and by piston and piston rod, the big chamber in lower end Below the small chamber in lower end;The big chamber in upper end, the small chamber in upper end separate in upper cylinder body and by piston and piston rod, the big chamber position in upper end Above the small chamber in upper end;Upper end check valve is connected to intermediate hydraulic cylinder upper end and is connected to the big chamber in upper end;Second mount holder is solid Due on intermediate hydraulic cylinder piston rod;Lower end check valve be connected to the lower end of intermediate hydraulic cylinder and with the intermediate big chamber in hydraulic cylinder lower end Connection.
Right side hydraulic cylinder includes:Lower end check valve, the big chamber in lower end, the big chamber in upper end, the small chamber in upper end, the small chamber in lower end, third bottom Board mount, detection plate I;The big chamber in lower end, the small chamber in lower end separate in lower cylinder body and by piston and piston rod, and the big chamber in lower end is located at Below the small chamber in lower end;The big chamber in upper end, the small chamber in upper end separate in upper cylinder body and by piston and piston rod, and the big chamber in upper end is located at upper It holds above small chamber;Upper end check valve is connected to the top of right side hydraulic cylinder upper cylinder and is connected to the big chamber in upper end;Lower end is unidirectional Valve is connected to the lower end of right side hydraulic cylinder and is connected to the big chamber in right side hydraulic cylinder lower end;Third mount holder is fixed on right side hydraulic pressure On cylinder piston rod;It is fixed on the third mount holder of right side hydraulic cylinder piston rod and detection plate I is installed;Detection plate I be used for It detects the contact of detection lug I of valve or is detached from;When detection plate I touches the detection lug I of detection valve, valve commutation work is detected.
When control system off-load, actuating unit makes hydraulic pump from fuel tank oil suction, and the fluid that hydraulic pump pumps out enters two four The right position of three-way electromagnetic valve simultaneously returns to fuel tank, control system off-load.
Downwards when charging, the electromagnet Y1 of two-position four-way solenoid directional control valve obtains electric, and hydraulic pump is from fuel tank oil suction, hydraulic pump pump The fluid gone out is divided into two-way after two-position four-way solenoid valve left position is using the right position of detection valve, and fluid is by A mouthfuls of valve of detection all the way Into the big chamber in right side hydraulic cylinder lower end and the small chamber in right side hydraulic cylinder upper end being connected with the big chamber in right side hydraulic cylinder lower end, make right side liquid The lower end check valve of cylinder pressure open to fluid all the way enter the big chamber in intermediate hydraulic cylinder lower end and with the intermediate big chamber in hydraulic cylinder lower end The connected intermediate small chamber in hydraulic cylinder upper end;Another way fluid enters the big chamber in left side hydraulic cylinder lower end for right position A1 mouthfuls by control valve The small chamber in left side hydraulic cylinder upper end being connected with the big chamber in left side hydraulic cylinder lower end;
The big chamber in left side hydraulic cylinder upper end and the small chamber in left side hydraulic cylinder lower end being connected with the big chamber in left side hydraulic cylinder upper end pass through detection B mouthfuls of oil returns of valve, the piston rod of left side hydraulic cylinder drive the first mount holder movement being secured to, are fixed on the first mount holder On bottom plate stretch out upwards;Under the big chamber in upper end of right side hydraulic cylinder and the right side hydraulic cylinder being connected with the big chamber in right side hydraulic cylinder upper end Small chamber is held to be connected for right position B1 mouthfuls with control valve, and due to the upper end check valve of intermediate hydraulic cylinder, oil return line blocks, right side hydraulic cylinder It remains stationary as;Intermediate hydraulic cylinder is returned due to the effect of the upper end check valve of left side hydraulic cylinder, the upper end check valve of intermediate hydraulic cylinder Oil circuit blocks, and intermediate hydraulic cylinder remains stationary as;
When left side, hydraulic cylinder moves up to stroke terminal, left side hydraulic cylinder upper end check valve is opened, intermediate hydraulic cylinder Way to cycle oil is opened, and the piston rod of intermediate hydraulic cylinder drives the second mount holder movement being secured to, and is fixed on the second bottom Bottom plate on board mount stretches out upwards;Left side hydraulic cylinder is remained stationary as with right side hydraulic cylinder;
When intermediate fluid cylinder pressure moves up to stroke terminal, intermediate hydraulic cylinder upper end check valve is opened, and right side hydraulic cylinder returns Oily access is opened, and right side hydraulic cylinder piston rod drives the third mount holder movement being secured to, and is fixed on third bottom plate branch Bottom plate on frame stretches out upwards;Left side hydraulic cylinder is remained stationary as with intermediate hydraulic cylinder;Material remains stationary in the process;
It is fixed on the third mount holder of right side hydraulic cylinder piston rod and detection plate I is installed, when right side hydraulic cylinder to row When journey terminal, fixed detection lug I on the touching detection valve reversing bar of detection plate I, detection valve commutation is switched to left position work.
The work of valve left position is detected, hydraulic pump is from fuel tank oil suction, a left side of the fluid through two-position four-way solenoid valve that hydraulic pump pumps out Position is using left position B mouthfuls of valve of detection, into the big chamber in left side hydraulic cylinder upper end and the small chamber in left side hydraulic cylinder lower end being attached thereto, oil Liquid opens the intermediate hydraulic cylinder lower end that left side hydraulic cylinder upper end check valve enters the intermediate big chamber in hydraulic cylinder upper end and is attached thereto again Small chamber opens the right side hydraulic cylinder lower end that intermediate hydraulic cylinder upper end check valve enters the right side big chamber in hydraulic cylinder upper end and is attached thereto Small chamber;The big chamber in left side hydraulic cylinder lower end and the small chamber in left side hydraulic cylinder upper end that is attached thereto by the right position A1 mouthfuls of oil returns of control valve, It the intermediate big chamber in hydraulic cylinder lower end and is attached thereto, the intermediate small chamber in hydraulic cylinder upper end opens intermediate hydraulic cylinder lower end check valve, leads to The big chamber in left side hydraulic cylinder lower end and the right position A1 mouthfuls of oil returns of control valve are crossed, right end hydraulic cylinder is by detecting left position A mouthfuls of oil return of valve;Left side Hydraulic cylinder, intermediate hydraulic cylinder, right side hydraulic cylinder piston rod drive mount holder fixed thereto to move jointly, every group of bottom plate one It rises and moves downward, materials downward;It is fixed on the first mount holder of left side hydraulic cylinder piston rod and detection plate II is installed, When the piston rod of left side hydraulic cylinder, intermediate hydraulic cylinder, right side hydraulic cylinder is moved to stroke terminal(That is stroke bottom)When, inspection Fixed detection lug II on the touching detection valve reversing bar of drafting board II, detection valve commutation are switched to right position work.
Compared with the existing technology, beneficial effects of the present invention are:The break-make that this control system passes through control hydraulic cylinder oil circuit It realizes the feeding and discharging of material, detects the amount of feeding of material in real time, hydraulic system is controlled, avoid material feeding excessive The generation of putty makes complete machine be operated in optimal working point, greatly reduces human operational error, is provided simultaneously with material bearing capacity Greatly, the advantages that integrated level is high, simple system is reliable.
Description of the drawings
Fig. 1 sand throwings are put out a fire automobile-used feeding equipment hydraulic system principle figure, and piston rod is located among hydraulic cylinder travel in Fig. 1;
Fig. 2 detects valve automatic reverse schematic diagram;
The assembly structure diagram of Fig. 3 mount holders, bottom plate, hydraulic cylinder;
In figure:1- engines, 2- fuel tanks, 3- hydraulic pumps, 4- filters, 5- overflow valves, 6- two-position four-ways solenoid directional control valve, 7- inspections Side valve, 8- control valves, hydraulic cylinder on the left of 9-, hydraulic cylinder among 10-, hydraulic cylinder on the right side of 11-, 7.1- reversal valves, 7.2- reversing bars, 7.3- detection lugs II, 7.4- detection lugs I, the big chamber in the lower ends 9.1-, the small chamber in the lower ends 9.2-, the big chamber in the upper ends 9.3-, the upper ends 9.4- are unidirectional Valve, the small chamber in the upper ends 9.5-, 9.6- detection plates II, the first mount holders of 9.7-, the lower ends 10.1- check valve, the big chamber in the lower ends 10.2-, The big chamber in the upper ends 10.3-, the upper ends 10.4- check valve, the small chamber in the upper ends 10.5-, the small chamber in the lower ends 10.6-, the second mount holders of 10.7-, The lower ends 11.1- check valve, the big chamber in the lower ends 11.2-, the big chamber in the upper ends 11.3-, the small chamber in the upper ends 11.4-, the small chamber in the lower ends 11.5-, 11.6- Third mount holder, 11.7- detection plates I, 12 bottom plates.
Specific implementation mode
The present invention described further below.In the following paragraphs, the different aspect of embodiment is defined in more detail.So The various aspects of restriction can be combined with any other one side or many aspects, can not be combined unless explicitly stated otherwise.Especially, Be considered as preferred or advantageous any feature can be considered as preferred or advantageous feature group with other one or more It closes.
According to Fig. 1-2, a kind of automobile-used feeding equipment control system of sand throwing fire extinguishing includes:Engine 1(That is actuating unit), oil Case 2, hydraulic pump 3, filter 4, overflow valve 5, two-position four-way solenoid directional control valve 6, detection valve 7, control valve 8, left side hydraulic cylinder 9, Intermediate hydraulic cylinder 10, right side hydraulic cylinder 11.
Detecting valve 7 includes:Reversal valve 7.1, reversing bar 7.2, detection lug II 7.3, detection lug I 7.4.
Left side hydraulic cylinder 9 includes:The big chamber 9.1 in lower end, the small chamber 9.2 in lower end, the big chamber 9.3 in upper end, upper end check valve 9.4, on Hold small chamber 9.5, detection plate II 9.6, the first mount holder 9.7.
Intermediate hydraulic cylinder 10 includes:Lower end check valve 10.1, the big chamber 10.2 in lower end, the big chamber 10.3 in upper end, upper end check valve 10.4, the small chamber 10.5 in upper end, the small chamber 10.6 in lower end, the second mount holder 10.7.
Right side hydraulic cylinder 11 includes:Lower end check valve 11.1, the big chamber 11.2 in lower end, the big chamber 11.3 in upper end, the small chamber in upper end 11.4, the small chamber 11.5 in lower end, third mount holder 11.6, detection plate I 11.7.
Engine 1 drives hydraulic pump 3, makes hydraulic pump 3 from 2 oil suction of fuel tank, hydraulic pump oil outlet P(I.e. main oil inlet P)It connects Two-position four-way solenoid directional control valve 6, two-position four-way solenoid directional control valve 6 are connected with detection valve 7.Detect 7 A of valve(Work oil inlet)、B (Work oil return opening)Mouth is respectively divided into two-way, and A mouthfuls are connected with the big chamber in 11 lower end of right side hydraulic cylinder 11.2 all the way, all the way with control valve 8 It is connected;B mouthfuls are connected with the big chamber in 9 upper end of left side hydraulic cylinder 9.3 all the way, are connected all the way with control valve 8.8 A1 mouthfuls of control valve(Work Oil inlet)It is connected with the big chamber in 9 lower end of left side hydraulic cylinder 9.1, B1 mouthfuls of control valve(Work oil return opening)With 11 upper end of right side hydraulic cylinder Big chamber 11.3 is connected.The small chamber in the big chamber 9.3 in 9 upper end of left side hydraulic cylinder and lower end 9.2 is connected, and the big chamber in upper end 9.3 passes through left side liquid The big chamber in 9 upper end check valve 9.4 of cylinder pressure and intermediate 10 upper end of hydraulic cylinder 10.3 is connected.The big chamber in 10 upper end of intermediate hydraulic cylinder 10.3 is under Small chamber 10.6 is held to be connected, and the big chamber 10.3 in intermediate 10 upper end of hydraulic cylinder passes through 10 upper end check valve 10.4 of intermediate hydraulic cylinder and right side The big chamber 11.3 in 11 upper end of hydraulic cylinder is connected.The small chamber in the big chamber 11.3 in 11 upper end of right side hydraulic cylinder and lower end 11.5 is connected.Right side hydraulic pressure The small chamber in the big chamber 11.2 in 11 lower end of cylinder and upper end 11.4 is connected, and the big chamber 11.2 in lower end passes through 11 lower end check valve of right side hydraulic cylinder 11.1 are connected with the big chamber in intermediate 10 lower end of hydraulic cylinder 10.2.The big chamber 10.2 in 10 lower end of intermediate hydraulic cylinder and small 10.5 phase of chamber in upper end Even, and by the big chamber in 10 lower end check valve 10.1 of intermediate hydraulic cylinder and 9 lower end of left side hydraulic cylinder 9.1 it is connected.Under left side hydraulic cylinder 9 The small chamber in big chamber 9.1 and upper end 9.5 is held to be connected.Hydraulic pump 3, which exports, connects overflow valve 5 by P, limit system maximum pressure, hydraulic system Filter 4 is connect on oil return line, ensures oil cleanliness.
Operating process:System unloaded, engine 1 drive hydraulic pump 3, hydraulic pump 3 from 2 oil suction of fuel tank, what hydraulic pump 3 pumped out Fluid enters 6 right position of two-position four-way solenoid valve and returns to fuel tank 2, hydraulic system(That is control system)Off-load.
To illustrate direction(Fig. 1, Fig. 2 and Fig. 3)For:
Charging, electromagnet Y1 obtain electric downwards, and hydraulic pump 3 is from 2 oil suction of fuel tank, and the fluid that hydraulic pump 3 pumps out is through two-position four-way electromagnetism 6 left position of valve passes through A mouthfuls and enters big 11.2 He of chamber in right side 11 lower end of hydraulic cylinder all the way using two-way is divided into behind 7 right position of detection valve It is big that the lower end check valve 11.1 for being attached thereto the small chamber 11.4 in upper end, and opening right side hydraulic cylinder 11 enters intermediate 10 lower end of hydraulic cylinder The small chamber of chamber 10.2 and the upper end being attached thereto 10.5;It is big by 8 right A1 mouthfuls of entrance left side of control valve, 9 lower end of hydraulic cylinder all the way The small chamber of chamber 9.1 and the upper end being attached thereto 9.5.The big chamber 9.3 in 9 upper end of left side hydraulic cylinder and the small chamber 9.2 in lower end being attached thereto are logical The 7 B mouthfuls of oil return of detection valve is crossed, hydraulic cylinder 9 piston rod in left side drives the first mount holder 9.7 movement being secured to, is fixed on this Bottom plate on a first mount holder 9.7 stretches out upwards.Bottom plate 12 is mounted on mount holder upper surface, it is longer with mount holder Side is vertical, and consistent with the direction of motion of piston rod, is sequentially arranged at the first mount holder, the second mount holder, third bottom plate Holder, three are one group, install as needed multigroup, one group is only shown in figure(One group of bottom plate is by being individually fixed in the first bottom The three bottom plates composition of board mount, the second mount holder, third mount holder), see Fig. 3, and material is positioned over all or part of bottoms On plate.The big chamber 11.3 in upper end of right side hydraulic cylinder 11 and the small chamber 11.5 in lower end being attached thereto are connected for 8 right B1 mouthfuls with control valve, And since the upper end check valve 10.4 of intermediate hydraulic cylinder 10 acts on, oil return line blocks, right side hydraulic cylinder 11 remains stationary as.Intermediate fluid Cylinder pressure 10 is due to the upper end check valve 9.4 of left side hydraulic cylinder 9, the effect oil return line of the upper end check valve 10.4 of intermediate hydraulic cylinder 10 It blocks, intermediate hydraulic cylinder 10 remains stationary as.When left side hydraulic cylinder 9 moves up to stroke terminal, hydraulic cylinder 9 upper end in left side is single It is opened to valve 9.4, the way to cycle oil of intermediate hydraulic cylinder 10 is opened, and 10 piston rod of intermediate hydraulic cylinder drives the be secured to Two mount holders 10.7 move, and the bottom plate being fixed on this second mount holder 10.7 stretches out upwards.Left side hydraulic cylinder 9 and the right side Side hydraulic cylinder 11 remains stationary as.When intermediate fluid cylinder pressure 10 moves up to stroke terminal, 10 upper end check valve of intermediate hydraulic cylinder 10.4 are opened, and hydraulic cylinder 11 way to cycle oil in right side is opened, and hydraulic cylinder 11 piston rod in right side drives the third bottom being secured to Board mount 11.6 moves, and the bottom plate being fixed on this third mount holder 11.6 stretches out upwards.Left side hydraulic cylinder 9 and intermediate fluid Cylinder pressure 10 remains stationary as, the material remains stationary in this process.It is fixed on the third bottom plate branch of right side 11 piston rod of hydraulic cylinder Detection plate I 11.7 is installed on frame 11.6, when right side hydraulic cylinder 11 moves to stroke terminal, the touching detection of detection plate I 11.7 Fixed detection lug I 7.4 on 7 reversing bar 7.2 of valve, the detection commutation of valve 7 are switched to left position work, as shown in Figure 2.
Detect the work of 7 left position of valve.Hydraulic pump 3 is from 2 oil suction of fuel tank, and the fluid that hydraulic pump 3 pumps out is through two-position four-way solenoid valve 6 Left position using left position B mouthfuls of valve 7 of detection, into the big small chamber 9.2 in lower end chamber 9.3 and be attached thereto in 9 upper end of left side hydraulic cylinder, Fluid opens left side 9 upper end check valve 9.4 of hydraulic cylinder and enters the big chamber 10.3 in intermediate 10 upper end of hydraulic cylinder and be attached thereto down again Small chamber 10.6 is held, 10 upper end check valve 10.4 of intermediate hydraulic cylinder is opened and enters the big chamber 11.3 in right side 11 upper end of hydraulic cylinder and therewith phase The small chamber in lower end 11.5 even.The big chamber 9.1 in 9 lower end of left side hydraulic cylinder and the small chamber 9.5 in upper end being attached thereto pass through 8 right position of control valve A1 mouthfuls of oil returns, the small chamber of the big chamber in 10 lower end of intermediate hydraulic cylinder 10.2 and the upper end being attached thereto 10.5 open 10 lower end of intermediate hydraulic cylinder Check valve 10.1, by the 8 right A1 mouthfuls of oil return of the big chamber 9.1 in 9 lower end of left side hydraulic cylinder and control valve, right end hydraulic cylinder 11 passes through inspection The left position A mouthfuls of oil return of side valve 7.Three hydraulic cylinder piston rods drive mount holder fixed thereto to move jointly, all bottom plates one It rises and moves downward, materials downward.It is fixed on the first mount holder 9.7 of left side 9 piston rod of hydraulic cylinder and detection is installed Plate II 9.6, it is fixed on touching detection 7 reversing bar 7.2 of valve of detection plate II 9.6 when three hydraulic cylinders are moved to stroke terminal Detection lug II 7.3, the detection commutation of valve 7 are switched to right position work.Enter next working cycles.
To upper feeding, Y1(Two-position four-way solenoid valve)、Y2(Control valve)Obtain electric, 7 right position of detection valve work.Operation principle with It feeds downwards and similar is no longer described in detail.
Hydraulic cylinder is to be horizontally mounted in practice, and the fortune forward of material can be completed according to the downward charging of drawing and to upper feeding Defeated and discharging backward, material are transported ahead to the tossed device of sand throwing extinguishing vehicle, complete the material feeding of vehicle, tossed device The amount of feeding for the treatment of capacity and material mismatch is easy to that putty occurs, and the material stock area of tossed device is provided with material position sensing thus Device, can input the maxima and minima of material position, the Y1 dead electricity when practical material position is higher than maximum value to controller, and hydraulic system is unloaded Lotus stops material feeding, and when practical material is less than minimum value, Y1 obtains electric, hydraulic work system, and material continues to feed.
This feeding equipment has the dual property of carrying storage and conveying material, how to detect the amount of feeding of material in real time, Hydraulic system is controlled, material is avoided to feed the generation of excessive putty, so that complete machine is operated in optimal working point, how to realize The feeding and discharging of material are the key technologies of entire feeding equipment.This system is realized by controlling the break-make of hydraulic cylinder oil circuit The feeding and discharging of material detect the amount of feeding of material, control hydraulic system in real time, and material is avoided to feed excessive putty Generation, so that complete machine is operated in optimal working point, greatly reduce human operational error, be provided simultaneously with material large carrying capacity, The advantages that integrated level is high, simple system is reliable.
It should be noted that example the above is only the implementation of the present invention, is not intended to limit the scope of the invention, Every equivalent structure or equivalent flow shift done using present specification, is applied directly or indirectly in other phases Technical field is closed, is included within the scope of the present invention.

Claims (10)

  1. The automobile-used feeding equipment control system 1. a kind of sand throwing is put out a fire, including actuating unit, fuel tank, hydraulic pump, detection valve, two four Electric change valve, control valve, left side hydraulic cylinder, intermediate hydraulic cylinder, right side hydraulic cylinder, which is characterized in that actuating unit is to liquid Press pump provides power;Hydraulic pump is connected to fuel tank;Hydraulic pump oil outlet P connection two-position four-way solenoid directional control valves, two-position four-way electricity Magnetic reversal valve is connected with detection valve;A, B mouthfuls of valve of detection is respectively divided into two-way, and A mouthfuls are connected with the big chamber in right side hydraulic cylinder lower end all the way, separately It is connected all the way with control valve;B mouthfuls of valve of detection is connected with the big chamber in left side hydraulic cylinder upper end all the way, and another way is connected with control valve;Control Valve A1 mouthfuls processed are connected with the big chamber in left side hydraulic cylinder lower end, and B1 mouthfuls of control valve is connected with the big chamber in right side hydraulic cylinder upper end;Left side hydraulic pressure The big chamber in cylinder upper end is connected with the small chamber in left side hydraulic cylinder lower end, and the big chamber in left side hydraulic cylinder upper end is unidirectional by left side hydraulic cylinder upper end Valve is connected with the big chamber in intermediate hydraulic cylinder upper end;The intermediate big chamber in hydraulic cylinder upper end is connected with the small chamber in intermediate hydraulic cylinder lower end, and intermediate The big chamber in hydraulic cylinder upper end is connected by intermediate hydraulic cylinder upper end check valve with the big chamber in right side hydraulic cylinder upper end;Right side hydraulic cylinder upper end Big chamber is connected with the small chamber in right side hydraulic cylinder lower end;The big chamber in right side hydraulic cylinder lower end is connected with the small chamber in right side hydraulic cylinder upper end, and right The big chamber in side hydraulic cylinder lower end is connected by right side hydraulic cylinder lower end check valve with the big chamber in intermediate hydraulic cylinder lower end;Under intermediate hydraulic cylinder It holds big chamber to be connected with the small chamber in intermediate hydraulic cylinder upper end, and passes through intermediate hydraulic cylinder lower end check valve and the big chamber in left side hydraulic cylinder lower end It is connected;The big chamber in left side hydraulic cylinder lower end is connected with the small chamber in left side hydraulic cylinder upper end.
  2. The automobile-used feeding equipment control system 2. a kind of sand throwing according to claim 1 is put out a fire, which is characterized in that hydraulic pressure pumps out Overflow valve is connect by hydraulic fluid port P.
  3. The automobile-used feeding equipment control system 3. a kind of sand throwing according to claim 1 is put out a fire, which is characterized in that the control The oil return line of system processed connects filter.
  4. The automobile-used feeding equipment control system 4. a kind of sand throwing according to claim 1 is put out a fire, which is characterized in that detection valve packet It includes:Reversal valve, reversing bar, detection lug II, detection lug I;Reversing bar connects reversal valve, the different location connecting detection piece of reversing bar II, detection lug I.
  5. The automobile-used feeding equipment control system 5. a kind of sand throwing according to claim 4 is put out a fire, which is characterized in that left side hydraulic pressure Cylinder includes:The big chamber in lower end, the small chamber in lower end, the big chamber in upper end, upper end check valve, the small chamber in upper end, detection plate II, the first mount holder; The big chamber in lower end, the small chamber in lower end separate in lower cylinder body and by piston and piston rod, and the big chamber in lower end is located at below the small chamber in lower end;On The small chamber of big chamber, upper end is held to be separated in upper cylinder body and by piston and piston rod, the big chamber in upper end is located above the small chamber in upper end;Upper end Check valve is connected to left side hydraulic cylinder upper end and is connected to the big chamber in upper end;First mount holder is fixed on left side hydraulic cylinder piston Bar is equipped with detection plate II on the first mount holder;Detection plate II is used to contact or be detached from the detection lug II of detection valve;Detection When plate II touches the detection lug II of detection valve, valve commutation work is detected.
  6. The automobile-used feeding equipment control system 6. a kind of sand throwing according to claim 4 is put out a fire, which is characterized in that intermediate hydraulic pressure Cylinder includes:Lower end check valve, the big chamber in lower end, the big chamber in upper end, upper end check valve, the small chamber in upper end, the small chamber in lower end, the second bottom plate branch Frame;The big chamber in lower end, the small chamber in lower end separate in lower cylinder body and by piston and piston rod, and the big chamber in lower end is located under the small chamber in lower end Side;The big chamber in upper end, the small chamber in upper end separate in upper cylinder body and by piston and piston rod, and the big chamber in upper end is located on the small chamber in upper end Side;Upper end check valve is connected to intermediate hydraulic cylinder upper end and is connected to the big chamber in upper end;Second mount holder is fixed on intermediate hydraulic pressure On cylinder piston rod;Lower end check valve is connected to the lower end of intermediate hydraulic cylinder and is connected to the intermediate big chamber in hydraulic cylinder lower end.
  7. The automobile-used feeding equipment control system 7. a kind of sand throwing according to claim 4 is put out a fire, which is characterized in that right side hydraulic pressure Cylinder includes:Lower end check valve, the big chamber in lower end, the big chamber in upper end, the small chamber in upper end, the small chamber in lower end, third mount holder, detection plate I;Under The small chamber of big chamber, lower end is held to be separated in lower cylinder body and by piston and piston rod, the big chamber in lower end is located at below the small chamber in lower end;Upper end Big chamber, the small chamber in upper end separate in upper cylinder body and by piston and piston rod, and the big chamber in upper end is located above the small chamber in upper end;Upper end is single It is connected to the top of right side hydraulic cylinder upper cylinder to valve and is connected to the big chamber in upper end;Lower end check valve is connected to right side hydraulic cylinder Lower end and be connected to the big chamber in right side hydraulic cylinder lower end;Third mount holder is fixed on the hydraulic cylinder piston rod of right side;It is fixed on Detection plate I is installed on the third mount holder of right side hydraulic cylinder piston rod;Detection plate I is used to connect with the detection lug I of detection valve It touches or is detached from;When detection plate I touches the detection lug I of detection valve, valve commutation work is detected.
  8. The automobile-used feeding equipment control system 8. a kind of sand throwing according to claim 1 is put out a fire, which is characterized in that control system When off-load, actuating unit makes hydraulic pump from fuel tank oil suction, and the fluid that hydraulic pump pumps out enters the right position of two-position four-way solenoid valve and returns Oil return box, control system off-load.
  9. The automobile-used feeding equipment control system 9. a kind of sand throwing according to claim 1 is put out a fire, which is characterized in that charging downwards When, the electromagnet Y1 of two-position four-way solenoid directional control valve obtains electric, and hydraulic pump is from fuel tank oil suction, and the fluid that hydraulic pump pumps out is through two four Three-way electromagnetic valve left position behind the right position of detection valve using two-way is divided into, and fluid enters under the hydraulic cylinder of right side for A mouthfuls by detection valve all the way The small chamber in right side hydraulic cylinder upper end held big chamber and be connected with the big chamber in right side hydraulic cylinder lower end makes the lower end check valve of right side hydraulic cylinder Open the intermediate hydraulic cylinder so that fluid enters the big chamber in intermediate hydraulic cylinder lower end and is connected with the intermediate big chamber in hydraulic cylinder lower end all the way The small chamber in upper end;Another way fluid by right position A1 mouthfuls of control valve enter the big chamber in left side hydraulic cylinder lower end and with left side hydraulic cylinder The connected small chamber in left side hydraulic cylinder upper end of the big chamber in lower end;
    The big chamber in left side hydraulic cylinder upper end and the small chamber in left side hydraulic cylinder lower end being connected with the big chamber in left side hydraulic cylinder upper end pass through detection B mouthfuls of oil returns of valve, the piston rod of left side hydraulic cylinder drive the first mount holder movement being secured to, are fixed on the first mount holder On bottom plate stretch out upwards;Under the big chamber in upper end of right side hydraulic cylinder and the right side hydraulic cylinder being connected with the big chamber in right side hydraulic cylinder upper end Small chamber is held to be connected for right position B1 mouthfuls with control valve, and due to the upper end check valve of intermediate hydraulic cylinder, oil return line blocks, right side hydraulic cylinder It remains stationary as;Intermediate hydraulic cylinder is returned due to the effect of the upper end check valve of left side hydraulic cylinder, the upper end check valve of intermediate hydraulic cylinder Oil circuit blocks, and intermediate hydraulic cylinder remains stationary as;
    When left side, hydraulic cylinder moves up to stroke terminal, left side hydraulic cylinder upper end check valve is opened, intermediate hydraulic cylinder Way to cycle oil is opened, and the piston rod of intermediate hydraulic cylinder drives the second mount holder movement being secured to, and is fixed on the second bottom Bottom plate on board mount stretches out upwards;Left side hydraulic cylinder is remained stationary as with right side hydraulic cylinder;
    When intermediate fluid cylinder pressure moves up to stroke terminal, intermediate hydraulic cylinder upper end check valve is opened, and right side hydraulic cylinder returns Oily access is opened, and right side hydraulic cylinder piston rod drives the third mount holder movement being secured to, and is fixed on third bottom plate branch Bottom plate on frame stretches out upwards;Left side hydraulic cylinder is remained stationary as with intermediate hydraulic cylinder;Material remains stationary in the process;
    It is fixed on the third mount holder of right side hydraulic cylinder piston rod and detection plate I is installed, when right side hydraulic cylinder to row When journey terminal, fixed detection lug I on the touching detection valve reversing bar of detection plate I, detection valve commutation is switched to left position work.
  10. The automobile-used feeding equipment control system 10. a kind of sand throwing according to claim 1 is put out a fire, which is characterized in that detection valve Left position works, and hydraulic pump is from fuel tank oil suction, and left position of the fluid through two-position four-way solenoid valve that hydraulic pump pumps out is using detection valve Left position B mouthfuls, into the big chamber in left side hydraulic cylinder upper end and the small chamber in left side hydraulic cylinder lower end being attached thereto, fluid opens left side liquid again The intermediate small chamber in hydraulic cylinder lower end that cylinder pressure upper end check valve enters the intermediate big chamber in hydraulic cylinder upper end and is attached thereto opens intermediate fluid The small chamber in right side hydraulic cylinder lower end that cylinder pressure upper end check valve enters the right side big chamber in hydraulic cylinder upper end and is attached thereto;Left side hydraulic cylinder By the right position A1 mouthfuls of oil returns of control valve, intermediate hydraulic cylinder lower end is big for the big chamber in lower end and the small chamber in left side hydraulic cylinder upper end that is attached thereto The small chamber of chamber and the intermediate hydraulic cylinder upper end being attached thereto opens intermediate hydraulic cylinder lower end check valve, big by left side hydraulic cylinder lower end Chamber and the right position A1 mouthfuls of oil returns of control valve, right end hydraulic cylinder is by detecting left position A mouthfuls of oil return of valve;Left side hydraulic cylinder, intermediate hydraulic cylinder, The piston rod of right side hydraulic cylinder drives mount holder fixed thereto to move jointly, and every group of bottom plate moves downwardly together, material to Lower movement;It is fixed on the first mount holder of left side hydraulic cylinder piston rod and detection plate II is installed, when left side hydraulic cylinder, centre When hydraulic cylinder, right side hydraulic cylinder are moved to stroke terminal, fixed detection lug II on the touching detection valve reversing bar of detection plate II, Detection valve commutation is switched to right position work.
CN201810261825.7A 2018-03-28 2018-03-28 Feeding device control system for sand throwing fire extinguishing vehicle Active CN108317114B (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109513146A (en) * 2018-12-29 2019-03-26 徐工集团工程机械有限公司 Device for transporting objects and sand throwing extinguishing vehicle
CN110420423A (en) * 2019-08-12 2019-11-08 徐工集团工程机械有限公司 Sand throwing extinguishing vehicle and its control method
CN113700695A (en) * 2021-08-13 2021-11-26 中国煤炭科工集团太原研究院有限公司 Power transmission device for different media and use method

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3929651A1 (en) * 1988-09-30 1990-04-05 Bucher Gmbh Hydraulic control system for silage cutter - has pressure-controlled throttle valves between ram working chambers
US5292006A (en) * 1992-01-08 1994-03-08 Girts Jr David M Screening apparatus
CA2260645A1 (en) * 1998-02-06 1999-08-06 Richard T. Gist Fluid drive for reciprocating floor
EP1172565A2 (en) * 2000-07-10 2002-01-16 Shin Caterpillar Mitsubishi Ltd. Hydraulic circuit for construction machine
JP2003247503A (en) * 2002-02-25 2003-09-05 Mitsubishi Heavy Ind Ltd Flow rate regulator of hydraulic pump in force-feeding machine
JP2008195111A (en) * 2007-02-08 2008-08-28 Shin Meiwa Ind Co Ltd Cargo carrying apparatus
CN102423521A (en) * 2011-09-14 2012-04-25 徐州重型机械有限公司 Fire extinguishing system and fire engine containing the same
CN103423221A (en) * 2013-07-24 2013-12-04 三一汽车起重机械有限公司 Multi-oil-cylinder sequence telescopic hydraulic system and engineering machine
CN105545847A (en) * 2016-02-26 2016-05-04 华侨大学 Hydraulic control system of crusher
CN208089655U (en) * 2018-03-28 2018-11-13 徐工集团工程机械有限公司 A kind of automobile-used feeding equipment control system of sand throwing fire extinguishing

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3929651A1 (en) * 1988-09-30 1990-04-05 Bucher Gmbh Hydraulic control system for silage cutter - has pressure-controlled throttle valves between ram working chambers
US5292006A (en) * 1992-01-08 1994-03-08 Girts Jr David M Screening apparatus
CA2260645A1 (en) * 1998-02-06 1999-08-06 Richard T. Gist Fluid drive for reciprocating floor
EP1172565A2 (en) * 2000-07-10 2002-01-16 Shin Caterpillar Mitsubishi Ltd. Hydraulic circuit for construction machine
JP2003247503A (en) * 2002-02-25 2003-09-05 Mitsubishi Heavy Ind Ltd Flow rate regulator of hydraulic pump in force-feeding machine
JP2008195111A (en) * 2007-02-08 2008-08-28 Shin Meiwa Ind Co Ltd Cargo carrying apparatus
CN102423521A (en) * 2011-09-14 2012-04-25 徐州重型机械有限公司 Fire extinguishing system and fire engine containing the same
CN103423221A (en) * 2013-07-24 2013-12-04 三一汽车起重机械有限公司 Multi-oil-cylinder sequence telescopic hydraulic system and engineering machine
CN105545847A (en) * 2016-02-26 2016-05-04 华侨大学 Hydraulic control system of crusher
CN208089655U (en) * 2018-03-28 2018-11-13 徐工集团工程机械有限公司 A kind of automobile-used feeding equipment control system of sand throwing fire extinguishing

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
史晓昌;: "运砂车液压系统的设计", 汽车实用技术, no. 07 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109513146A (en) * 2018-12-29 2019-03-26 徐工集团工程机械有限公司 Device for transporting objects and sand throwing extinguishing vehicle
CN109513146B (en) * 2018-12-29 2024-03-01 江苏徐工工程机械研究院有限公司 Material conveying device and sand throwing fire extinguishing vehicle
CN110420423A (en) * 2019-08-12 2019-11-08 徐工集团工程机械有限公司 Sand throwing extinguishing vehicle and its control method
CN113700695A (en) * 2021-08-13 2021-11-26 中国煤炭科工集团太原研究院有限公司 Power transmission device for different media and use method
CN113700695B (en) * 2021-08-13 2023-09-08 中国煤炭科工集团太原研究院有限公司 Power transmission device for different mediums and use method

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