CN110318779A - wet spraying trolley - Google Patents
wet spraying trolley Download PDFInfo
- Publication number
- CN110318779A CN110318779A CN201910488292.0A CN201910488292A CN110318779A CN 110318779 A CN110318779 A CN 110318779A CN 201910488292 A CN201910488292 A CN 201910488292A CN 110318779 A CN110318779 A CN 110318779A
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- oil
- valve
- pumping
- pump
- oil circuit
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- 238000005507 spraying Methods 0.000 title claims abstract description 24
- 230000007246 mechanism Effects 0.000 claims abstract description 28
- 238000002347 injection Methods 0.000 claims abstract description 26
- 239000007924 injection Substances 0.000 claims abstract description 26
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 238000005086 pumping Methods 0.000 claims description 94
- 238000011010 flushing procedure Methods 0.000 claims description 9
- 239000002828 fuel tank Substances 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 8
- 230000008093 supporting effect Effects 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 220
- 239000010720 hydraulic oil Substances 0.000 description 10
- 230000033001 locomotion Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 239000004567 concrete Substances 0.000 description 5
- 239000000446 fuel Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000005183 dynamical system Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009527 percussion Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000011449 brick Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000011378 shotcrete Substances 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
- F02B63/06—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/161—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load
- F15B11/165—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load for adjusting the pump output or bypass in response to demand
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Civil Engineering (AREA)
- Catching Or Destruction (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention relates to the field of engineering machinery, and discloses a wet spraying trolley, which comprises: an engine (1); a chassis having a hydraulic drive train and a travel train; and an injection mechanism, which is selectively transmission-connected to the engine (1) via the hydraulic transmission system, respectively, so as to be drivable by the engine (1) for running and/or injection work. The wet spraying trolley provided by the invention is driven by the engine (1) and used for spraying operation, extra power supply is not needed, spraying operation such as lining support can be completed under the working condition of inconvenient power supply, and the wet spraying trolley is convenient to use and good in maneuverability. Because high-voltage power supply is not needed, the wet spraying trolley can effectively improve the use safety.
Description
Technical field
The present invention relates to engineering machinery, and in particular, to a kind of wet shot trolley.
Background technique
Wet shot trolley is a kind of common engineering machinery in engineering, is had from walking function, and can be by Wet-type concrete
Mix is ejected on working face, for body structure surfaces liner supportings such as rock, brick wall, bar construction and wooden templates.
In order to meet the basic function from walking and spraying operation, wet shot trolley is commonly equipped with engine (such as diesel engine)
And motor, it is realized and is moved forward and backward by the movement of engine driving chassis running gear, drive Hydraulic Power Transmission System real by motor
Existing concrete ejection operation.That is, existing wet shot trolley is realized respectively using two sets of relatively independent dynamical systems from walking and spray
Penetrate operation function.The powered version has the advantages under general operating condition: utilizing and the mutually independent motor of driving dynamics
Injection equipment is driven to be convenient for the improvement and installation on sizing automobile chassis, design and improvement cost are relatively low, are driven by electricity injection
It is relatively friendly to environment.Power supply needed for injection need to only be provided, can be completed operation.
However, above-mentioned powered version is then in place of Shortcomings: in High aititude, long range under some special operation conditions
When tunneling operation, since power transmission efficiency is low, inconvenience is laid with cable, causes wet shot trolley that can not carry out spraying operation.Herein
Under situation, juryrigged generator is needed, and generated electricity by driven by engine, it is inconvenient for use to provide injection required electric power.Separately
Outside, since spraying system needs external high voltage power supply, mobility is poor, and there are certain security risks.
Summary of the invention
The object of the present invention is to provide a kind of wet shot trolley, which can be adapted to carry out injection work under different operating conditions
Industry has many advantages, such as that mobility is good, highly-safe, easy to use.
To achieve the goals above, the present invention provides a kind of wet shot trolley, comprising: engine；Chassis, the chassis have liquid
Press power train and running gear；Injection equipment, the injection equipment and the running gear may be selected by the hydraulic drive system respectively
Ground is sequentially connected to the engine, that can be traveling and/or spraying operation by the engine driving.
Preferably, the hydraulic drive system includes by engine-driven main oil pump, transmission connection in the traveling
To the pumping oil cylinder of the injection equipment, the main oil pump and the driving motors and pumping are oily for the driving motors of system and transmission connection
It is provided with switching valve on oil circuit between cylinder, which allows hand over to make the main oil pump to the driving motors and pump
Send any one of oil cylinder pumping pressure oily.
Preferably, the hydraulic drive system includes the first pumping oil being connected between the main oil pump and the switching valve
Road and the second pumping oil circuit, the main oil pump are connected with pump-regulating mechanism, which is set as adjusting the main oil pump
Selectivity passes through any one of the first pumping oil circuit and the second pumping oil circuit pumping pressure oil.
Preferably, the pump-regulating mechanism is connected with proportion magnetic valve and is adjusted according to the electricity condition that obtains of the proportion magnetic valve
The pump oil direction of the main oil pump and discharge capacity, and the proportion magnetic valve is arranged are as follows: it is expert under the state of sailing, passes through the proportion magnetic valve
Size of current synchronize variation with throttle size variation；It is big by the electric current of the proportion magnetic valve under spraying operation state
It is small to be rotated and variation with pump displacement adjusting knob.
Preferably, the pumping oil cylinder includes the first oil cylinder and the second oil cylinder being connected in series in pairs, the hydraulic drive
System includes the first work being connected between the switching valve and first oil cylinder, the second oil cylinder and the driving motors
Oil circuit, the second working oil path, third working oil path and the 4th working oil path, the switching valve be configured to be switched to so that
One of the first pumping oil circuit and the second pumping oil circuit selectivity are connected to first working oil path or third working oil
Road, while the corresponding connection of another one second working oil path or the 4th working oil path.
Preferably, the switching valve has for switching the first pumping oil circuit and the second pumping oil circuit and described first
First logical valve of the connected relation between working oil path, the second working oil path, third working oil path and the 4th working oil path,
Two logical valves, third logical valve, the 4th logical valve and solenoid directional control valve, first logical valve, the second logical valve, third logic
Two two places of liquid controling cavity of valve and the 4th logical valve are connected to the commutation hydraulic fluid port of the solenoid directional control valve to be selected by the solenoid directional control valve
Selecting property is connected to pressure oil-source or fuel tank.
Preferably, the pressure oil port of the connection pressure oil-source of the solenoid directional control valve is oily by the control for being equipped with shuttle valve
Road is connected to the first pumping oil circuit and the second pumping oil circuit.
Preferably, the hydraulic drive system includes the flushing for being separately connected the first pumping oil circuit and the second pumping oil circuit
Oil circuit and repairing oil circuit, the flushing oil road are equipped with flushing valve, and the repairing oil circuit is equipped with slippage pump.
Preferably, the driving motors are connected to the running gear by gearbox transmission.
Preferably, the driving engine is connected with for S pipe valve, accelerator feed mechanism, stirring and washing mechanism, shelves
Position switching mechanism, supporting leg, cantilever crane and at least one of braking or steering mechanism supply the function pump of hydraulic power.
Through the above technical solutions, wet shot trolley of the invention provides the power of traveling and spraying operation, nothing by engine
Additional power supply is needed, can complete the spraying operations such as liner supporting under the operating condition of such as power supply inconvenience, easy to use,
Mobility is good.Due to supplying without high-tension electricity, which can be effectively improved safety in utilization.
Other features and advantages of the present invention will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
The drawings are intended to provide a further understanding of the invention, and constitutes part of specification, with following tool
Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is a kind of transmission principle figure of the wet shot trolley of preferred embodiment according to the present invention；
Fig. 2 is the hydraulic schematic diagram of the hydraulic drive system of wet shot trolley in Fig. 1.
Description of symbols
1- engine；2- main oil pump；3- driving motors；4- pumping oil cylinder；The first oil cylinder of 41-；The second oil cylinder of 42-；5- is cut
Change valve；The first logical valve of 51-；The second logical valve of 52-；53- third logical valve；The 4th logical valve of 54-；55- solenoid directional control valve；6-
Function pump；7-S pipe valve；8- accelerator feed mechanism；9- stirring and washing mechanism；10- shift-position changing mechanism；11- supporting leg；12- arm
Frame；13- braking or steering mechanism；14- pump-regulating mechanism；15- proportion magnetic valve；16- fuel tank；17- shuttle valve；18- flushing valve；
19- slippage pump；20- gearbox；21- multi-way valve；22- selector valve.
L1- first pumps oil circuit；L2- second pumps oil circuit；The first working oil path of L3-；The second working oil path of L4-；L5-
Three working oil paths；The 4th working oil path of L6-；L7- controls oil circuit；L8- rinses oil circuit；L9- repairing oil circuit；P- pressure oil port；T-
Pressure release hydraulic fluid port；A- the first pump oil mouth；B- the second pump oil mouth；The first actuator port of A1-；The second actuator port of A2-；B1- third work
Make hydraulic fluid port；The 4th actuator port of B2-.
Specific embodiment
Below in conjunction with attached drawing, detailed description of the preferred embodiments.It should be understood that this place is retouched
The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
Shown in referring to Fig.1, the wet shot trolley of a kind of preferred embodiment, including engine 1, chassis, spray according to the present invention
Penetrate mechanism and other function component.The power exported by engine 1 can be transferred to the traveling on chassis by such as gearbox 20
It is (being such as transferred to wheel) to drive wet shot trolley to move forward or back, to realize traveling movement.Also, it is exported by engine 1 dynamic
Power can also be selected as being transferred to injection equipment by such as pumping oil cylinder 4, and concrete mix is sprayed to working face, real
Existing spraying operation.
For this purpose, wet shot trolley of the invention is equipped with the hydraulic drive system for transmitting 1 power of engine, the wet shot on chassis
The injection equipment and running gear of trolley pass through hydraulic drive system respectively and are selectively sequentially connected to engine 1, so that wet shot
Trolley can be driven to traveling and/or spraying operation by the engine 1.As a result, the wet shot trolley by engine 1 provide traveling and
The power of spraying operation can complete liner supporting etc. without additional power supply under the operating condition of such as power supply inconvenience
Spraying operation, it is easy to use, mobility is good.Due to supplying without high-tension electricity, which can be effectively improved using safe
Property.
In the preferred embodiment illustrated in fig. 1, engine 1 is diesel engine and is equipped with main power taking mouth and assists power taking mouth,
Multiple functional components including injection equipment are driven by multiple Hydraulic power units that are sequentially connected.Wherein, main power taking mouth
Multiple function pumps 6 are connected with, driving S pipe valve 7 is respectively used to and swings, accelerator feed mechanism 8 is driven to provide speed to injection equipment
Solidifying agent, the rotation that driving stirring and washing mechanism 9 realization agitating shaft is selected as by selector valve 22 or cleaning or driving gear switching machine
Structure 10 realizes the functions such as gearbox-gear switching.Auxiliary power taking mouth is connected with a function pump 6, and function pump 6 is for by more
21 connection leg 11 of road valve, cantilever crane 12 and braking or steering mechanism 13, to be achieved as desired by the flexible of supporting leg 11, cantilever crane 12
The braking or steering of movement and vehicle.In other embodiments, these functional components can at least partly omit or with it
His mode is sequentially connected to engine 1.By this set, wet shot trolley of the invention need to only configure a set of dynamical system, with
Driving power source of the engine 1 as traveling, spraying operation and other miscellaneous functions, selectively obtains phase from engine 1
Power needed for answering function and movement, so that dynamical system is compact.
The power of engine 1 is selectively transferred to running gear or injection by hydraulic drive system by wet shot trolley of the invention
Mechanism, the hydraulic drive system can be set to a variety of suitable forms.For example, can divide on the power output shaft of engine 1
Lian Jie not be for providing the hydraulic pump of hydraulic power for running gear and injection equipment, and transmitted by relatively independent hydraulic circuit
Power.
Preferred embodiment shown in FIG. 1 shares a main oil pump 2 and provides hydraulic power for running gear and injection equipment.Its
In, the hydraulic drive system of the wet shot trolley includes the main oil pump 2 driven by engine 1, transmission connection in the traveling horse of running gear
Up to 3 and it is sequentially connected to the pumping oil cylinder 4 of injection equipment.Oil circuit between main oil pump 2 and the driving motors 3 and pumping oil cylinder 4
On be provided with switching valve 5, which allows hand over any to make main oil pump 2 into driving motors 3 and pumping oil cylinder 4
Person's pumping pressure oil.
When as a result, when switching valve 5 is switched to so that main oil pump 2 being connected to driving motors 3, the rotation of driving motors 3 (passes through change
Fast case 20) it is transferred to wheel, the advance and/or retrogressing of wet shot trolley are realized in driving running gear movement；When switching valve 5 is switched to
When so that main oil pump 2 being connected to pumping oil cylinder 4, which is acted to drive injection equipment gunite concrete mix, is realized
Spraying operation.
Further, the hydraulic drive system referring to hydraulic schematic diagram shown in Fig. 2, in a kind of preferred embodiment of the present invention
System includes the first pumping oil circuit L1 being connected between main oil pump 2 and switching valve 5 and the second pumping oil circuit L2, and main oil pump 2 connects
There is pump-regulating mechanism 14, which can adjust main oil pump 2 and pass through the first pumping oil circuit L1 and the second pumping oil circuit
Any one of L2 pumping pressure oil, thus, it is possible to drive wet shot trolley to move forward or back, driving pumping oil cylinder 4 is moved back and forth.
Specifically, when main oil pump 2 is adjusted to through the first pumping oil circuit L1 pumping pressure oil, which enters row
The first oil pocket for sailing motor 3, the hydraulic oil being discharged from the second oil pocket of driving motors 3 can pump oil circuit L2 to master by second
Thus 2 fuel feeding of oil pump drives driving motors 3 to rotate in a first direction；Alternatively, the pressure oil of the first pumping oil circuit L1 pumping enters
Pumping oil cylinder 4 (the second oil cylinder 42 of diagram) can pass through second from the hydraulic oil of pumping oil cylinder 4 (the first oil cylinder 41 of diagram) discharge
Oil circuit L2 is pumped to 2 fuel feeding of main oil pump, is achieved in the expanding-contracting action of pumping oil cylinder 4.
Conversely, the pressure oil enters traveling when main oil pump 2 is adjusted to through the second pumping oil circuit L2 pumping pressure oil
Second oil pocket of motor 3, the hydraulic oil being discharged from the first oil pocket of driving motors 3 can pump oil circuit L1 to main oil by first
2 fuel feeding are pumped, thus driving motors 3 are driven to rotate in second direction；Alternatively, the pressure oil of the second pumping oil circuit L2 pumping enters pump
Oil cylinder 4 (the first oil cylinder 41 of diagram) is sent, the first pump can be passed through from the hydraulic oil of pumping oil cylinder 4 (the second oil cylinder 42 of diagram) discharge
It send oil circuit L1 to 2 fuel feeding of main oil pump, is achieved in pumping oil cylinder 4 in the expanding-contracting action in another direction.
The Hydraulic Power Transmission System is formed as a kind of closed hydraulic loop as a result,.In the wet shot trolley course of work, Ke Nengyin
Complex working condition and by come from ground or other workload bring percussions, by using hydraulic driving mode, especially
It is closed hydraulic loop provided by the invention, can not only utilizes the advantages of hydraulic drive energy-absorbing and buffer this percussion, and
And can to avoid the fluctuation of oil pressure in system, can the equal mechanical parts of effective protection engine 1, reliability with higher
And operation stability.
In other embodiments, main oil pump 2 can also aspirate hydraulic oil from fuel tank 16, and make driving motors 3 and pump
The hydraulic oil for sending oil cylinder 4 to be discharged returns to fuel tank 16.
Since hydraulic drive system of the invention needs to provide power for injection equipment, and injection equipment passes through pumping oil cylinder 4
Reciprocating motion realize the injection of concrete mix, thus need continually to switch the pump oil direction of main oil pump 2.For this purpose, this
Invention is by connecting the adjusting that proportion magnetic valve 15 realizes pump oil direction in pump-regulating mechanism 14.As shown in Fig. 2, proportion magnetic valve
15 can have the first electromagnet a and the second electromagnet b, and pump-regulating mechanism 14 obtains the pump that electricity condition adjusts main oil pump 2 according to it
Oily direction.To which when the first electromagnet a obtains electric, main oil pump 2 drives wet shot by the first pumping oil circuit L1 pumping pressure oil
Trolley advance or pumping oil cylinder 4 it is flexible；When the second electromagnet b obtains electric, main oil pump 2 passes through the second pumping oil circuit L2 pumping pressure
Power oil, driving wet shot trolley retreats or pumping oil cylinder 4 is flexible in another direction.
Pump-regulating mechanism 14 may be arranged as the row that main oil pump 2 is adjusted according to the size of current by proportion magnetic valve 15
Amount, thus, it is possible to adjust the jet velocity of speed and injection equipment by the size of current of proportion magnetic valve 15 by control.For
Convenient for manipulation, when wet shot trolley is in driving status, can by by the size of current of proportion magnetic valve 15 be set as with
Throttle size variation and synchronize variation, so as to conveniently by gas pedal adjust travel speed；When wet shot trolley is in
When spraying operation state, changed by the size of current of proportion magnetic valve 15 with the rotation of pump displacement adjusting knob.
Typically, pumping oil cylinder 4 may include the first oil cylinder 41 and the second oil cylinder 42 being connected in series in pairs, such as the two
Rod chamber communicates with each other, and when one of them is driven to stretch out, another one is retracted, and vice versa, so as to continuous spraying operation.
Just it has been observed that in a preferred embodiment of the invention, selecting main oil pump 2 to driving motors 3 or pumping oil cylinder using switching valve 5
4 pumping pressures oil.It, can be into one after selecting driven executive component (driving motors 3 or pumping oil cylinder 4) by switching valve 5
Step is by switching the rotation direction of driving motors 3 or the telescopic direction of pumping oil cylinder 4 such as reversal valve, thus before can even saving
Pump-regulating mechanism 14 is stated, merely with one of the first pumping oil circuit L1 and the second pumping oil circuit L2 pumping pressure oil.
Preferred embodiment shown in Fig. 2 be provided in switching valve 5 first actuator port A1, the second actuator port A2,
Third actuator port B1 and the 4th actuator port B2, successively with the second oil cylinder 42, the first oil pocket of driving motors 3, the first oil cylinder
41 and driving motors 3 the second oil pocket correspond.Between switching valve 5 and the first oil cylinder 41, the second oil cylinder 42 and driving motors 3
It is connected with the first working oil path L3, the second working oil path L4, third working oil path L5 and the 4th working oil path L6.Meanwhile switching
The the first pump oil mouth A and the second pump oil mouth for being separately connected the pumping of the first pumping oil circuit L1 and second oil circuit L2 are additionally provided on valve 5
B.Switching valve 5 only needs to switch the first pump oil mouth A and the second pump oil mouth B and the first actuator port A1, the second actuator port as a result,
The connected relation of A2, third actuator port B1 and the 4th actuator port B2 can determine wet shot platform by the pump oil direction of main oil pump 2
The driving direction of vehicle and the telescopic direction of pumping oil cylinder 4 avoid other hydraulic control components of setting redundancy.For this purpose, the switching
Valve 5 can be set to be switched to so that second pumping oil circuit L2 selectively the first working oil path L3 of connection or third work
Oil circuit L5, while the first corresponding connection the second working oil path L4 or the 4th working oil path L6 of pumping oil circuit L1.
For example, switching valve 5 is switched to so that first pumping oil circuit L1 the second working oil path of connection L4, the second pumping oil circuit
L2 is connected to the first working oil path L3 (as shown in Figure 2), and main oil pump 2 can drive the by the pressure oil that the first pumping oil circuit L1 is pumped
Two oil cylinders 42 stretch out, the first oil cylinder 41 retracts；Main oil pump 2 can drive the first oil by the pressure oil of the second pumping oil circuit L2 pumping
Cylinder 41 stretches out, the second oil cylinder 42 retracts.Similarly, switching valve 5 is switched to so that the 4th work of the first pumping oil circuit L1 connection
Oil circuit L6, the second pumping oil circuit L2 are connected to third working oil path L5, and the different pumping directions of main oil pump 2 can drive driving motors 3
It is rotated in different directions.
Above-mentioned switching valve 5 can be set to three six-way transfer valves, to realize different movements or work in different commutation orientation
Industry.However, there are problems that being difficult to meet flow demand using commutation Vavle switching connected relation, the traveling speed of wet shot trolley is restricted
Degree and ejection efficiency.It is cut for this purpose, being used as the present invention provides a kind of logic valve group being made of logical valve and solenoid directional control valve 55
Change valve, including successively with the first working oil path L3, third working oil path L5, the second working oil path L4 and the 4th working oil path
Corresponding first logical valve 51 of L6, the second logical valve 52, third logical valve 53, the 4th logical valve 54, wherein the first logic
Valve 51 connects the second pumping oil circuit L2, third logical valve 53 and the 4th logical valve by the second pump oil mouth B with the second logical valve 52
54 pump oil circuit L1 by the first pump oil mouth A connection first.
First logical valve 51 is connected to a hydraulic fluid port of solenoid directional control valve 55, the second logic with the liquid controling cavity of third logical valve 53
Valve 52 is connected to another hydraulic fluid port of solenoid directional control valve 55, two oil of solenoid directional control valve 55 with the liquid controling cavity of the 4th logical valve 54
Mouth can be selectively switched to be connected to pressure oil-source by pressure oil port P or being connected to fuel tank 16 by pressure release hydraulic fluid port T, with two
The opening and closing of two places control logic valve group.
Under illustrated case, the first logical valve 51 is connected to pressure release hydraulic fluid port T with the liquid controling cavity of third logical valve 53, allows oil liquid
It is through-flow, thus the hydraulic oil that main oil pump 2 pumps can be flowed by the first working oil path L3 and the second working oil path L4, realize pump
Send the movement of oil cylinder 4；And the second logical valve 52 is connected to pressure oil port P, main oil pump 2 and traveling with the liquid controling cavity of the 4th logical valve 54
Hydraulic communication relationship between motor 3 is separated, wet shot trolley stagnation of movement.By change solenoid directional control valve 55 electromagnet c it is logical
Electricity condition, thus it is possible to vary the on off operating mode of each logical valve, to switch the operating mode of wet shot trolley, details are not described herein.
The pressure oil-source for controlling each logical valve on-off can use any suitable form.Preferred reality shown in Fig. 2
It applies in mode, the pressure oil port P of solenoid directional control valve 55 is connected to the first pumping oil circuit by being equipped with the control oil circuit L7 of shuttle valve 17
The pumping of L1 and second oil circuit L2.Direction is pumped regardless of main oil pump 2 as a result, can be passed pumping pressure by shuttle valve 17
It is handed to pressure oil port P, it is ensured that the second logical valve 52 and the 4th logical valve 54 when the first logical valve 51 and third logical valve 53 are connected
It closes, vice versa.
Further, hydraulic drive system according to Fig.2, is also provided with the first pumping oil circuit L1 of connection and the second pump
Send the flushing oil circuit L8 and repairing oil circuit L9 of oil circuit L2, rinsing that oil circuit L8 is upper can be equipped with flushing valve 18, with can be with main oil
The change in the pumping direction of pump 2 and to 16 discharge part hydraulic oil of fuel tank；The slippage pump 19 being set on repairing oil circuit L9 can
Supplement the hydraulic oil from fuel tank 16.Thus, it is possible to realize that hydraulic circuit and the hydraulic oil of fuel tank 16 exchange, hydraulic circuit is avoided
In high oil temperature.
It is described the prefered embodiments of the present invention in detail above in conjunction with attached drawing, still, the present invention is not limited to above-mentioned realities
The detail in mode is applied, within the scope of the technical concept of the present invention, a variety of letters can be carried out to technical solution of the present invention
Monotropic type, these simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case where shield, it can be combined in any appropriate way.In order to avoid unnecessary repetition, the present invention to it is various can
No further explanation will be given for the combination of energy.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should also be regarded as the disclosure of the present invention.
Claims (10)
1. a kind of wet shot trolley characterized by comprising
Engine (1)；
Chassis, the chassis have hydraulic drive system and running gear；And
Injection equipment, the injection equipment and the running gear are selectively sequentially connected by the hydraulic drive system to institute respectively
Engine (1) is stated, traveling and/or spraying operation can be driven to by the engine (1).
2. wet shot trolley according to claim 1, which is characterized in that the hydraulic drive system includes by the engine
(1) main oil pump (2) that drives, transmission connection in the running gear driving motors (3) and be sequentially connected to the injection equipment
Pumping oil cylinder (4), be provided with switching on the oil circuit between the main oil pump (2) and the driving motors (3) and pumping oil cylinder (4)
Valve (5), the switching valve (5) allow hand over to make in the main oil pump (2) Xiang Suoshu driving motors (3) and pumping oil cylinder (4)
Any one pumping pressure oil.
3. wet shot trolley according to claim 2, which is characterized in that the hydraulic drive system includes being connected to the main oil
The first pumping oil circuit (L1) and the second pumping oil circuit (L2) between (2) and the switching valve (5) are pumped, the main oil pump (2) is even
Pump-regulating mechanism (14) are connected to, which is set as adjusting the main oil pump (2) selectively by described first
Pump any one of oil circuit (L1) and the second pumping oil circuit (L2) pumping pressure oil.
4. wet shot trolley according to claim 3, which is characterized in that the pump-regulating mechanism (14) connects proportional electromagnetism
Valve (15) simultaneously adjusts pump oil direction and the discharge capacity of the main oil pump (2) according to the electricity condition that obtains of the proportion magnetic valve (15), and is somebody's turn to do
Proportion magnetic valve (15) setting are as follows: be expert under the state of sailing, become by the size of current of the proportion magnetic valve (15) with throttle size
Change and synchronizes variation；Under spraying operation state, is adjusted and revolved with pump displacement by the size of current of the proportion magnetic valve (15)
Button rotates and changes.
5. wet shot trolley according to claim 3, which is characterized in that the pumping oil cylinder (4) includes being connected in series in pairs
The first oil cylinder (41) and the second oil cylinder (42), the Hydraulic Power Transmission System include be connected to the switching valve (5) with should
The first working oil path (L3), the second working oil path between first oil cylinder (41), the second oil cylinder (42) and the driving motors (3)
(L4), third working oil path (L5) and the 4th working oil path (L6), the switching valve (5) are configured to be switched to so that institute
State the first pumping oil circuit (L1) and the second pumping one of oil circuit (L2) selectivity be connected to first working oil path (L3) or
Third working oil path (L5), while the corresponding connection of another one second working oil path (L4) or the 4th working oil path (L6).
6. wet shot trolley according to claim 5, which is characterized in that the switching valve (5) has for switching described the
One pumping oil circuit (L1) and the second pumping oil circuit (L2) and first working oil path (L3), the second working oil path (L4), third
The first logical valve (51) of connected relation between working oil path (L5) and the 4th working oil path (L6), the second logical valve (52),
Third logical valve (53), the 4th logical valve (54) and solenoid directional control valve (55), first logical valve (51), the second logical valve
(52), two two places of liquid controling cavity of third logical valve (53) and the 4th logical valve (54) are connected to changing for the solenoid directional control valve (55)
To hydraulic fluid port by the solenoid directional control valve (55) selectively connection pressure oil-source or fuel tank (16).
7. wet shot trolley according to claim 6, which is characterized in that the connection pressure of the solenoid directional control valve (55)
The pressure oil port (P) of oil sources is connected to first pumping oil circuit (L1) and the by being equipped with the control oil circuit (L7) of shuttle valve (17)
Two pumpings oil circuit (L2).
8. wet shot trolley according to claim 3, which is characterized in that the hydraulic drive system includes being separately connected described the
The flushing oil circuit (L8) and repairing oil circuit (L9) of one pumping oil circuit (L1) and the second pumping oil circuit (L2), the flushing oil circuit (L8)
It is equipped with flushing valve (18), the repairing oil circuit (L9) is equipped with slippage pump (19).
9. wet shot trolley according to claim 2, which is characterized in that the driving motors (3) are passed by gearbox (20)
It is dynamic to be connected to the running gear.
10. wet shot trolley according to claim 1, which is characterized in that the engine (1) is sequentially connected with for S
Pipe valve (7), accelerator feed mechanism (8), stirring and washing mechanism (9), shift-position changing mechanism (10), supporting leg (11), cantilever crane (12)
(6) are pumped with the function of braking or at least one of steering mechanism (13) supply hydraulic power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910488292.0A CN110318779B (en) | 2019-06-05 | 2019-06-05 | Wet spraying trolley |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910488292.0A CN110318779B (en) | 2019-06-05 | 2019-06-05 | Wet spraying trolley |
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| Publication Number | Publication Date |
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| CN110318779A true CN110318779A (en) | 2019-10-11 |
| CN110318779B CN110318779B (en) | 2020-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910488292.0A Active CN110318779B (en) | 2019-06-05 | 2019-06-05 | Wet spraying trolley |
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| Country | Link |
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| CN (1) | CN110318779B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112997859A (en) * | 2021-04-07 | 2021-06-22 | 芜湖职业技术学院 | Quantitative irrigation device for trees |
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| DE2514125B2 (en) * | 1975-03-29 | 1978-05-18 | Maschinenfabrik Glueckauf Beukenberg Gmbh & Co, 4650 Gelsenkirchen | |
| CN101387158A (en) * | 2008-11-11 | 2009-03-18 | 三一重工股份有限公司 | Power drive apparatus for concrete wet sprayer and concrete wet sprayer |
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| CN112997859A (en) * | 2021-04-07 | 2021-06-22 | 芜湖职业技术学院 | Quantitative irrigation device for trees |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110318779B (en) | 2020-10-27 |
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