CN108729399A - A kind of novel washing, which is swept overall height and compressed and washed, to be swept and low pressure dust falling system - Google Patents
A kind of novel washing, which is swept overall height and compressed and washed, to be swept and low pressure dust falling system Download PDFInfo
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- CN108729399A CN108729399A CN201810535436.9A CN201810535436A CN108729399A CN 108729399 A CN108729399 A CN 108729399A CN 201810535436 A CN201810535436 A CN 201810535436A CN 108729399 A CN108729399 A CN 108729399A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/10—Hydraulically loosening or dislodging undesirable matter; Raking or scraping apparatus ; Removing liquids or semi-liquids e.g., absorbing water, sliding-off mud
- E01H1/101—Hydraulic loosening or dislodging, combined or not with mechanical loosening or dislodging, e.g. road washing machines with brushes or wipers
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- Cleaning By Liquid Or Steam (AREA)
Abstract
The present invention is that a kind of novel washing is swept overall height and compressed and washed and sweeps and low pressure dust falling system, including vehicle is realized high compress and wash the free switching swept with low pressure depositing dust both of which at work；Both of which is a working water water supplying pump, and the operation selection of two operating modes may be implemented in a water pump；According to main oil pump load feedback characteristic, main oil pump realizes the rotating speed of control water pump so that control passes through the water of water nozzle by integrating valve group feedback, realize that height compresses and washes to sweep and there are different requirements to hydraulic system pressure from low pressure depositing dust, the actual loading pressure of water nozzle feeds back to the switching that Main Hydraulic Pump realizes hydraulic system pressure by integrating valve group under different operating modes；The high pressure correspondence of integrated control valve group, which is washed, sweeps operating mode, and integrated valve group low pressure correspondence sweeps road operating mode.The present invention designs an integrated valve group, and main pump output hydraulic pressure oil pressure, flow is made to be controlled, by driving the motor rotary speed of water pump to control, changing the rotating speed of water pump to change the control to water outlet hydraulic pressure and water in operation process.
Description
Technical field
It sweeps overall height the present invention relates to a kind of novel washing and compresses and washes and sweep and low pressure dust falling system, realizing that height compresses and washes the operation mould swept
The function of low pressure depositing dust is increased simultaneously under formula, a kind of high pressure water is especially disclosed and may be implemented to automatically switch with low pressure water, be total to
With a water pump, a transfer tube, motor realize that the work pattern that two kinds of operating modes are exchanged, the system are suitable for currently on the market
With more extensive sweeper.
Background technology
Currently with the continuous development of national economy, people's living standards continue to improve, environmental protection increasingly by
Everybody attention, with the continuous propulsion of national Urbanization Construction, administration of city appearance is more and more important, wherein being with sweeper
The demand of main environmental sanitation cleaning outfit is also increasing, and Multifunctional sweeper is even more to get the favour of people, and current is clear
Vehicle is swept other than having the function of cleaning and aspirating rubbish, has the function of that height compresses and washes and sweeps road surface and also more and more apply to clearly
Vehicle is swept, therefore being designed and arranged for high pressure water system just becomes the main points that producer pays close attention to, sweeper realizes that high pressure washing is to pass through
A set of high-pressure washing system such as the high-pressure pump, the high-pressure hydraulic pump that are carried on vehicle realizes that sweeper unilaterally is focused on washing sweeping work(on the market
Can, it but ignores one of them important low pressure depositing dust and sweeps road function, the depositing dust another set of low pressure depositing dust system of general sweeper
System solves, such as the control water outlet of pneumatic diaphragm pump, electrodynamic pump low-pressure pump, realizes low pressure depositing dust, reaches sweeping machine effect, at
This height, control system are complicated, it is unstable the shortcomings of；The present invention is directed to sweepers to have high pressure washing when height is compressed and washed and swept, slight
Also there is low pressure depositing dust in keeping a public place clean, switched to automation control, share a set of dynamical system and realize two kinds of operating modes, adapt to
Property is stronger, and application range is wider.
Invention content
It sweeps overall height the purpose of the present invention is to provide a kind of novel washing and compresses and washes and sweep and low pressure dust falling system, the novel sweeper
Height, which compresses and washes, to be swept and one whole control hydraulic valve block of low pressure dust falling system design, and main pump output oil pressure, flow is made to be controlled, to
The motor rotary speed of driving water pump is set to be controlled, the rotating speed for changing water pump changes realization hydraulic pressure, water rate control.
The technical scheme is that：A kind of novel washing, which is swept overall height and compressed and washed, to be swept and low pressure dust falling system, the system include height
The pattern of sweeping and low pressure depositing dust pattern are compressed and washed,
It is that the novel sweeper uses high pressure water impact ground during depth is kept a public place clean that the height, which compresses and washes the pattern of sweeping, high
By water spout to scrub the working condition that state rinses road surface after pressing the generation of water that the hydraulic pressure of water tank is contracted by high-pressure hydraulic pump；When
It needs the road surface kept a public place clean dirtier, when having larger pollution, when road pavement being needed to be scrubbed, may be implemented with this pattern, high pressure
For water pump by spraying road surface pollutant by water nozzle after why being pressurized at the water source of water tank, high pressure washing sweeps disk action simultaneously will pollution
Object is swept into when rinsing to be inhaled in bucket and (provides suction by vehicle wind turbine), by contaminant collecting to garbage box, completes road pavement
Depth keep a public place clean；
The low pressure depositing dust pattern is that the novel sweeper needs to have the work of low pressure depositing dust when slight keep a public place clean
State, with present invention mainly solves solving the problems, such as road surface airborne dust during sweeping road, the aproll depositing dust when sweeping, when the roads Sao Panjiang
Face rubbish (deashing, paper scrap, leaf etc.) is swept into suction inlet and is entered in the dustbin of vehicle by the suction bucket of wind turbine offer suction, entire
Sweep distance mesolow depositing dust pattern play the role of different vehicle positions rise inhibit airborne dust, be finally completed sweep road keep a public place clean it is whole
Vehicle pattern；
Two above action passes through automatically controlled button free switching.
The height, which compresses and washes, to be swept and low pressure dust falling system includes a set of shared hydraulic system, a shared power source and one
Share water pump, an integrated control valve group, control water valve, water tank；
The shared hydraulic system includes the hydraulic pump, a hydraulic motor, an integrated control valve being connected with each other
Group, a hydraulic oil pipeline attachment and a hydraulic oil container,
The shared hydraulic system realizes that high pressure mode, low-voltage operation switch by electrical control；
The height compresses and washes the pattern of sweeping：Electric control system changes size of current to make integrated control by current potential knob
Valve group through-current capacity drives the rotating speed of hydraulic motor finally to realize high pressure water flow control to change hydraulic pump, can with size of current
It adjusts and realizes that flow, hydraulic pressure size is adjustable；
The low pressure washes the pattern of sweeping：Same current control integrated control valve group, integrated control valve group under same knob
Changed by inner passage, by the main oily introduction passage two of hydraulic pump, setting secondary pressure is protected, and the highest of hydraulic-driven is limited
Pressure realizes the control of water yield under depositing dust pattern to finally realize that motor rotary speed is low to discharge pressure maximum control,
Hydraulic pressure reduction is low, again limits maximum pressure to protect low pressure line, realizes low pressure depositing dust system job pattern；Motor
Rotating speed is low, realizes that the control of water yield under depositing dust pattern, hydraulic pressure reduce, again limits maximum pressure to protect low-voltage tube
Low pressure depositing dust system job pattern is realized on road；Water valve control may be used according to different operating modes under above same two kinds of work patterns
System realizes that switching carries out high pressure water supply to vehicle different piece and low pressure depositing dust supplies water (from/hand)；The hydraulic system is set
Load sensing function is counted, the Hydraulic Elements of installation detection real work load posting, realize that complete machine is intelligent in hydraulic system,
Reach energy saving and power match ratio requirement；Engine operates oil pump, that is, starts to work normally；It is such as loaded without real work, then liquid
Pressure oil pumpage is zeroed, and idle work wastes power.So key technology is exactly that oil pump is allowed to operate, energy consumption is close to zero,
The present invention installs the Hydraulic Elements of detection real work load posting in systems, designs in electric proportional control valve
Secondary valve is set, by load-transducing function, measures real work load；Main oil pump uses variable cam-type axial piston pump,
Its function is responsible for providing fluid dynamic to multi-way valve, and load signal feeds back to main oil pump signal hydraulic fluid port through oil pipe, and real load increases
Greatly, it reduces or when no-load, main oil pump swash plate is according to transducing signal, and oil pressure reduces, increases swashplate angle automatically, to meet reality
Flow needed for the load of border reaches power conservation requirement, and significantly reduces the fever of hydraulic system；
The hydraulic system main valve block and height pressure valve is highly integrated, and in valve block design, inside removes and processes valve group
It commutates outside channel, it is internal also to install inserting valve body additional, realize high-low pressure handoff functionality；Complete machine layout is simple, and failure is low, reduces manufacture
Cost；Water system of the present invention has two sets of control systems：1, high voltage control water valve system；2, low voltage control water valve system；So-called control
Gate valve system refers to the output that the lower water of different mode is realized in the control of water pump output water source (amount) connecting with water valve (from/hand), water
Demand of the switch of valve according to real work pattern to water；Height, which compresses and washes, to be swept operating mode and low pressure depositing dust mould and is respectively adopted two sets
Control water valve system, realize high-low pressure operating mode under it is non-interference, realize the independence of its operating mode, low pressure depositing dust pattern
Water source comes from height and compresses and washes the water source swept under operating mode, and the two interdepends to form a set of unique water yield control system.
High voltage control water valve system：When compressing and washing the state of sweeping (height compresses and washes the pattern of sweeping) using height, highest water outlet reaches
The motor high speed rotation of 135bar, water pump connection make water pump (can meet high pressure washing reality with the required flow of delivery nozzle
Demand), at this time water system control model uses high pressure conditions, can be switched according to operating mode water valve channel, defeated for different actions
Go out different amounts of high pressure water；Low pressure depositing dust pattern, water control system is such as used to switch to low voltage control water valve system, hydraulic system
Synchronism switching, realization low pressure depositing dust difference action export different amounts of low pressure water simultaneously with water control system；
When sweeping line state (height compresses and washes the pattern of sweeping) using low pressure, highest water outlet reaches 135bar, and the motor of water pump connection is low
Speed rotation allows water pump to export the required flow of low-pressure nozzle, and at this time water system control model uses low-pressure state, root
It can switch according to operating mode low voltage control water valve, different amounts of low pressure water is exported for different actions.
The high pressure washing pattern includes that the water pump, high pressure water control valve, side being connected with each other sweep unit, side cleans unit
Inhale bucket and high-pressure wash spray boom；
The low pressure depositing dust pattern includes that the water pump, low pressure water control valve, side being connected with each other clean unit, side scavenging machine
Group suction bucket and low pressure depositing dust spray boom.
The present invention sweeps disk+rolling and brushing with unilateral side and realizes that single side road surface depth is kept a public place clean application；Low pressure depositing dust gently sweeps pattern：The work
Condition is as follows：Low pressure water, which by operating on low voltage pattern water source after low-pressure nozzle is atomized is sprayed on road surface, is swept with to reduce road surface and passes by journey
In airborne dust, inhaled inside bucket after the pavement garbages such as dust enter and inhale bucket and there is low pressure sprinkler head to disclose interior airborne dust to this to press down
System, when dust enters in garbage box in the process rubbish and the airborne dust for having nozzle to enter babinet to high speed carries out depositing dust, avoids
The dust formation reentrainment of dust that vehicle is taken out of dustbin in operation process by fan airflow pollutes air；
Height compresses and washes the pattern of sweeping：Road surface is dirtier, starts height and compresses and washes the pattern of sweeping, high-pressure hydraulic pump turns according to high-pressure hydraulic pump drive motor
Speed provides required water.
Major function of the present invention is that sweeper is compressed and washed using height in the case where height compresses and washes and sweeps operating mode and swept, hydraulic pressure 100-
150bar is (such as：Side cleans unit 1+ rolling and brushing (inclined side) and rinses) energy realization action, discharge of pump 12L-156L/Min is (according to water
The unrounded number data are 7-12 6502 notes：Changing the data according to water nozzle quantity type selecting can change)；Such as in low pressure depositing dust mould
Formula keeps a public place clean that sweep road function then and can be switched to and sweep road pattern high-pressure washing is swept pattern switching be low pressure delivery (5- using light
50bar) pattern, water yield are 10L-20L (can increase as needed)；The two can use same water pump with free switching
Complete the action.The discharge pressure of the water pump is：5-150bar；Water flow：10-156L/Min.
Beneficial effects of the present invention：The novel washing, which is swept overall height and compressed and washed, to be swept and low pressure dust falling system can make novel washing sweep overall height
It compresses and washes and sweeps and the function of low pressure depositing dust can merge and upgrade, it is perishable to solve conventional cleaning vehicle low pressure water system, maintenance difficult,
And manufacturing cost it is high the problems such as, one whole control hydraulic valve block of present invention design makes main pump output oil pressure, flow be controlled,
To make the motor rotary speed of driving water pump be controlled, the rotating speed for changing water pump changes realization hydraulic pressure, water rate control.
Description of the drawings
Fig. 1 is that mesohigh of the present invention is washed and swept and the structural schematic diagram of low pressure dust falling system；
Fig. 2 is the left view of Fig. 1；
Fig. 3 is that mesohigh of the present invention is washed and swept and the work structuring schematic diagram of the hydraulic part of low pressure dust falling system；
Fig. 4 be mesohigh of the present invention wash sweep and low pressure dust falling system in proportional valve control part work structuring schematic diagram；
Fig. 5 is that mesohigh of the present invention is washed and swept and low pressure depositing dust system operating mode schematic diagram；
In figure：1 is that side cleans unit, and 2 be that side cleans unit suction bucket, and 3 be high pressure water control valve, and 4 be low pressure water control valve,
5 be control system of water pump, and 1-1 control systems are that height compresses and washes and sweeps spray boom, and 1-2 is low pressure depositing dust spray boom；
8 be proportioning valve, and 9 be proportioning valve water inlet pump drive motor pipeline, and 9-1 is proportioning valve oil inlet pipe, and 9-2 is proportioning valve
It is water pump with proportioning pump LS connecting lines, 10,11 be water pump drive motor, and 12 be hydraulic oil container, and 13 be water tank；14 be hydraulic pressure
Pump；
15 be low pressure depositing dust system pressure protection valve, and 16 be low pressure depositing dust system pressure protection valve, and 17 be that height compresses and washes and sweeps master
System pressure protects valve.
Specific implementation mode
As shown, a kind of novel washing, which is swept overall height and compressed and washed, sweeps and low pressure dust falling system, the system include low pressure depositing dust pattern and
Height compresses and washes the pattern of sweeping, and the low pressure depositing dust pattern is that the novel sweeper needs to have low pressure depositing dust when slight keep a public place clean
Working condition, with present invention mainly solves solving the problems, such as road surface airborne dust during sweeping road, the aproll depositing dust when sweeping, when sweeping disk
Pavement garbage (deashing, paper scrap, leaf etc.) is swept into suction inlet by the suction bucket of wind turbine offer suction to be entered in the dustbin of vehicle,
It is entire sweep distance mesolow depositing dust pattern and play the role of rising at different vehicle positions inhibit airborne dust, be finally completed and sweep road and keep a public place clean
Vehicle pattern；
It is that novel sweeper uses high pressure water impact ground, high pressure during depth is kept a public place clean that the height, which compresses and washes the pattern of sweeping,
The generation of water the hydraulic pressure of water tank 13 is contracted by high-pressure hydraulic pump 10 after by water spout to scrub the working condition that state rinses road surface；
When needing the road surface kept a public place clean dirtier, when having larger pollution, when road pavement being needed to be scrubbed, may be implemented with this pattern, it is high
For water pump 10 by spraying road surface pollutant by water nozzle after why being pressurized at the water source of water tank 13, high pressure washing sweeps disk action simultaneously
Pollutant is swept into when rinsing and inhales in bucket and (provides suction by vehicle wind turbine), by contaminant collecting to garbage box, is completed
The depth of road pavement is kept a public place clean.Two above action passes through automatically controlled button free switching.
The height, which compresses and washes, to be swept and low pressure dust falling system includes a set of shared hydraulic system, a shared power source and one
Share 10, integrated control valve groups of water pump, control water valve, water tank 13；
The shared hydraulic system includes the 14, hydraulic motors of a hydraulic pump being connected with each other, an integrated control
Valve group, a hydraulic oil pipeline attachment and a hydraulic oil container 12, the shared hydraulic system realize high pressure by electrical control
Pattern, low-voltage operation switching；
The height compresses and washes the pattern of sweeping：Electric control system changes size of current to make integrated control by current potential knob
Valve group through-current capacity drives the rotating speed of hydraulic motor finally to realize high pressure water flow control to change hydraulic pump 14, uses size of current
Adjustable realization flow, hydraulic pressure size is adjustable；
The low pressure washes the pattern of sweeping：Same current control integrated control valve group, integrated control valve group under same knob
Changed by inner passage, by the main oily introduction passage two of hydraulic pump 14, setting secondary pressure is protected, and limits hydraulic-driven most
High pressure realizes the control of water yield under depositing dust pattern to finally realize that motor rotary speed is low to discharge pressure maximum control
System, hydraulic pressure reduction is low, again limits maximum pressure to protect low pressure line, realizes low pressure depositing dust system job pattern；
Motor rotary speed is low, realizes that the control of water yield under depositing dust pattern, hydraulic pressure reduce, it is low to protect to again limit maximum pressure
Low pressure depositing dust system job pattern is realized on pressure pipe road；Water may be used according to different operating modes under above same two kinds of work patterns
Valve control realizes that switching carries out high pressure water supply to vehicle different piece and low pressure depositing dust supplies water (from/hand)；The hydraulic pressure system
System Design cooling load sensing function, the Hydraulic Elements of installation detection real work load posting, realize complete machine intelligence in hydraulic system
Energyization reaches energy saving and power match ratio requirement；Engine operates oil pump, that is, starts to work normally；Such as loaded without real work,
Then hydraulic oil pump discharge capacity is zeroed, and idle work wastes power；So key technology is exactly that oil pump is allowed to operate, energy consumption is close to zero, this
The Hydraulic Elements of detection real work load posting are installed in invention in systems, and two level is arranged in electric proportional control valve in design
Valve measures real work load by load-transducing function；Main oil pump uses variable cam-type axial piston pump, function negative
Blame to multi-way valve and fluid dynamic be provided, load signal feeds back to main oil pump signal hydraulic fluid port through oil pipe, real load increases, reduce or
When no-load, according to transducing signal, oil pressure reduces, increases swashplate angle main oil pump swash plate automatically, to meet actual load institute
The flow needed, reaches power conservation requirement, and significantly reduce the fever of hydraulic system；
The hydraulic system main valve block and height pressure valve is highly integrated, and in valve block design, inside removes and processes valve group
It commutates outside channel, it is internal also to install inserting valve body additional, realize high-low pressure handoff functionality；Complete machine layout is simple, and failure is low, reduces manufacture
Cost；Water system of the present invention has two sets of control systems：1, high voltage control water valve system；2, low voltage control water valve system；So-called control
Gate valve system refers to the output that water pump 10 exports that the lower water of different mode is realized in the control of water source (amount) connecting with water valve (from/hand),
Demand of the switch of water valve according to real work pattern to water.Height, which compresses and washes, to be swept operating mode and low pressure depositing dust mould and is respectively adopted two
Set control water valve system, realize high-low pressure operating mode under it is non-interference, realize the independence of its operating mode, low pressure depositing dust mould
Formula water source comes from height and compresses and washes the water source swept under operating mode, and the two interdepends to form a set of unique water yield control system.
High voltage control water valve system：When compressing and washing the state of sweeping (height compresses and washes the pattern of sweeping) using height, highest water outlet reaches
135bar；The motor high speed rotation that water pump 10 connects makes water pump 10 (can meet high pressure washing with the required flow of delivery nozzle
Actual demand), at this time water system control model uses high pressure conditions, can be switched according to operating mode water valve channel, is different dynamic
Make to export different amounts of high pressure water；Low pressure depositing dust pattern, water control system is such as used to switch to low voltage control water valve system, hydraulic pressure
Synchronism switching, realization low pressure depositing dust difference action export different amounts of low pressure water to system simultaneously with water control system；Use low pressure
When sweeping line state (height compresses and washes the pattern of sweeping), highest water outlet reaches 135bar；The motor low speed rotation that water pump 10 connects makes water pump 10
The required flow of low-pressure nozzle can be exported, at this time water system control model uses low-pressure state, according to operating mode low pressure control
Gate valve can switch, and different amounts of low pressure water is exported for different actions.
It includes that the control system of water pump 5, high pressure water control valve 3, side being connected with each other sweep unit that the height, which compresses and washes the pattern of sweeping,
1, side cleans unit 2 and height compresses and washes and sweeps spray boom 1-1；The low pressure depositing dust pattern include be connected with each other control system of water pump 5,
Low pressure water control valve 4, side clean unit 1, side cleans unit and inhales bucket 2 and low pressure depositing dust spray boom 1-2.
The present invention sweeps disk+rolling and brushing with unilateral side and realizes that single side road surface depth is kept a public place clean application；
Low pressure depositing dust gently sweeps pattern：The operating mode is as follows：Low pressure water passes through low-pressure nozzle mist by operating on low voltage pattern water source
It is sprayed on road surface after change to reduce the airborne dust during road is swept on road surface, inhales inside bucket and has after the pavement garbages such as dust enter and inhale bucket
Low pressure sprinkler head is disclosed interior airborne dust to this and is inhibited, when dust enters in garbage box and has nozzle to high speed in the process rubbish
Into babinet airborne dust carry out depositing dust, avoid vehicle taken out of by fan airflow in operation process dustbin dust formed it is secondary
Airborne dust pollutes air；
Height compresses and washes the pattern of sweeping：Road surface is dirtier, starts height and compresses and washes the pattern of sweeping, high-pressure hydraulic pump 10 is according to high-pressure hydraulic pump drive motor
11 rotating speeds provide required water；
Major function of the present invention is that sweeper is compressed and washed using height in the case where height compresses and washes and sweeps operating mode and swept, hydraulic pressure 100-
150bar is (such as：Side cleans unit 1+ rolling and brushing (inclined side) and rinses) energy realization action, 10 water yield 12L-156L/Min of water pump (according to
The water nozzle quantity data are 7-12 6502 notes：Changing the data according to water nozzle quantity type selecting can change), such as under the operating mode
Keep a public place clean that sweep road function then and can be switched to and sweep road pattern high-pressure washing is swept pattern switching be low pressure delivery (5- using light
50bar), water yield is 10L-20L (can increase as needed)；The two can be complete using same water pump 10 with free switching
At the action.The discharge pressure of the water pump 10 is：5-150bar；Water flow：10-156L/Min.
The whole vehicle state of patent of the present invention has that height compresses and washes the pattern of sweeping and low pressure depositing dust pattern and the two can be with free switching；
Height compresses and washes the pattern of sweeping such as figure one：High pressure water out passes through high pressure water management from water pump 10 by high pressure water control valve 3
Valve 3 is allocated to be swept unit 1 with approaching side and compress and wash by height and sweeps spray boom 1-1 and be ejected on ground, is completed cleaning ground, is generated
Sewage can by sweep disk rotate through suction inlet by wind turbine suck dustbin in, complete cleaning road surface effect, pass through water pump 10
Complete discharge pressure flow control；The rotating speed control of water pump drive motor 11 may be implemented in control system of water pump 5, to realize it
The flow control of water.
Low pressure depositing dust pattern such as figure one：Low pressure water out enters back into low pressure from water pump 10 by 3 mouth of a river of high pressure water control valve
Water control valve 4 is ejected into ground by low pressure water control valve 4 by low pressure depositing dust spray boom 1-2, completes ground depositing dust, is making water fogging
While to ground, and some 10 water of high-pressure hydraulic pump cleans the mist in unit suction bucket 2 by 4 approaching side of low pressure water control valve
Change nozzle on, clear water by nozzle atomization realize to wind turbine suck inhale bucket rubbish carry out atomized dust settling, the dust by suction bucket into
Enter in dustbin, also there is atomizer, low pressure water to clean unit with side and inhale bucket 2, low pressure depositing dust spray boom 1-2 and garbage box
Inner nozzle completes the operation of low pressure depositing dust, and rubbish cleans unit eventually by side and inhales bucket 2 by wind turbine sucking dustbin, completing cleaning
Road surface acts on, and it is to solve cleaning process to complete discharge pressure flow control (detailed annotation of figure two) this low pressure depositing dust pattern by water pump 10
The processing of middle airborne dust problem.
The present invention by electronically controlled proportional valve in hydraulic control system 8 realize to the pressure of hydraulic system, flow control to
The free switching of implementation pattern；Also achieve direct switching of the type sweeper as sweeping machine；It will be in low pressure dust falling system
Power section, is directly integrated into the system that former height compresses and washes the pattern of sweeping waterway control system part；With the sweeper of this system
It is high, easy to operate to automate centralization degree, it is easy to maintenance.The key of the present invention is：High-low pressure water (is output with nozzle end
Terminal hydraulic pressure) output water is refers to, and key is to export water pump 10 control of water flow, or to water pump drive motor 11
The control of rotating speed, the speed of drive motor (quantitative) rotating speed directly determine high-pressure hydraulic pump 10 output water (10 rotating speed of water pump with go out
Water is directly proportional)；There are two types of control modes for the control of water pump 10 of the present invention：1, the control of proportioning valve 8 is added to realize water pump 10 with constant displacement pump
Electrodeless control (driving rotating speed from 0-1200R/Min), the proportional flow control valve of control valve should in the case where height compresses and washes the pattern of sweeping
Valve is realized according to the size of electric current input and is controlled hydraulic flow and hydraulic system pressure, in system pressure by current control
Under power 5-22Mpa, reaches 11 rotating speed water pump of water pump drive motor, 10 highest output 156L/Min water, meets work work of the invention
Condition；In the case where gently sweeping pattern, after automatically controlled switching push button, pressure limiting, limit flow are carried out to main pump hydraulic system, pass through current vs' example valve
Excess traffic is returned the flow-reduction that the reduction of hydraulic oil container 12 enters water pump drive motor 11 by 8 controls by big flow venting valve
10 rotating speed of water pump reduces water yield and realizes cleaning function；2, add the electrodeless control of common valve control realization water pump 10 with load sensitive pump
System (drives rotating speed from 0-1200R/Min), and load-sensitive feedback control, liquid are realized according to the hydraulic pressure of terminal and valve internal control
The output flow of press pump 14 is directly directly realized by variable-flow output according to terminal requirements or electric current input, and the pattern of sweeping is compressed and washed in height
Under, automatic realize controls hydraulic flow and hydraulic system pressure, at system pressure 5-22Mpa, reaches water pump driving horse
Up to 11 rotating speed water pump, 10 highest output 156L/Min water, meets the work operating mode of the present invention or swept under pattern gently:1, automatically controlled
After switching push button, changed according to load, 14 discharge capacity of hydraulic pump becomes smaller automatically, and flow output becomes smaller, 11 rotating speed of water pump drive motor
It reduces, 10 water yield of water pump is transformed to low pressure depositing dust flow (10L-20L can be increased as needed) of the present invention, passes through electric current pair
Proportioning valve 8 controls, and (scheme 2 is used in the high-end product of this product, the party for the electrodeless variation of depositing dust flow in realization cleaning function
Case is more energy efficient)；
10 height of water pump of the present invention, which compresses and washes, sweeps the principle that water is realized with low pressure dustfall water：
1, as shown in Figure 2：Hydraulic oil container 12 is that hydraulic pump 14 provides hydraulic pressure transfer medium, by converting mechanical energy to
Hydraulic energy forms reset pressure, feeds back to and be formed system pressure in hydraulic system according to the nozzle quantity of figure side spray boom,
For example need the side of 130Bar to sweep height and compress and wash and sweep, the pressure of high pressure water nozzle end (demand end) is 130Bar, and the water needed is
150L, water pump drive motor 11 needs to export 130Bar load pressures according to end in figure two makes in figure two that proportioning valve 8 will
Adjust hydraulic system pressure, by hydraulic system pressure according to the actual loading of water nozzle carry out pressure match, maximum pressure by than
Overflow valve maximum pressure determines in example valve 8, and the highest protection pressure being arranged in this system is 25Mpa, once Watering head of water tap occurs
The case where blocking, hydraulic system pressure can rise, but when rising to a certain extent, hydraulic system will pass through overflow valve highest
Pressure protection this system, the system are provided with second set of protection pressure, pressure cut off are set in the proportioning pump industry, when end is stifled
When plug occurs loading unlimited increase, if interim card occurs in hydraulic system overflow valve, proportioning pump swash plate can playback, pressure cut off meeting
Start to protect system；When high pressure water control valve 3 needs more various flow, proportioning valve 8 can pass through proportioning valve and ratio
Pump LS connecting lines 9-2 feeds back to proportioning pump, and proportioning pump, in the case where rotating speed is constant, is put according to LS feedback signals by itself
The variation at angle increases or reduces hydraulic oil output, to realize control to 10 motor rotary speed speed of water pump, is also achieved that pair
10 water flow of water pump realizes control.
2, as shown in two/figure of figure three：Height is realized in above-mentioned 1 and compresses and washes the pattern swept, and the present invention realizes low as follows
Pressure drop dirt pattern：
In low pressure depositing dust pattern, required water flow and discharge pressure are much less than height and compress and wash the pattern of sweeping, that
Proportioning valve 8 plays key effect in figure two in invention, is swept as long as the required 10 flow height of water pump of low pressure depositing dust pattern compresses and washes
About 1/10th under pattern, proportioning pump and proportioning valve 8 are carried out load feedback design by the present invention in proportioning valve 8, and terminal is negative
Pressure 10bar-20bar is carried, hydraulic system pressure 0-8Mpa is corresponded to, secondary pressure is used in proportioning valve 8, using the function
When, switch low-voltage, 8 flow of comparative example valve is realized under the maximum pressure by potentiometer current control, maximum current to horse
The maximum (top) speed control reached, controls low pressure water max water yield to realize；Highest hydraulic system pressure is realized to low pressure drop
The system of dirt pattern is protected, and terminal highest is made not exceed 20bar pressure, once being more than, water pump 10 is complete by proportioning valve 8
At drain charge, proportioning pump is fed back according to the LS of proportioning valve 8 realizes that discharge capacity precisely exports.
Height compresses and washes the pattern of sweeping and low pressure depositing dust pattern, and controlling size of current by potentiometer realizes opening for proportional valve spool
Size is opened to control the flow realization rotating speed control into water pump drive motor 11.
Engine operates oil pump, that is, starts to work normally；It is such as loaded without real work, then 14 discharge capacity of hydraulic pump is zeroed, nothing
Diligent waste power；The present invention is exactly that oil pump is allowed to operate, and energy consumption is close to zero, and the present invention installs detection real work in systems
Secondary valve is arranged in electric proportional control valve as above figure in the Hydraulic Elements of load posting, design, by load-transducing function, measures
Real work load (according to different work pattern, actual load main pump can be with Auto-matching).Main oil pump is inclined disc type using variable
Axial plunger pump, function are responsible for providing fluid dynamic to multi-way valve, and load signal feeds back to main oil pump signal hydraulic fluid port through oil pipe,
Real load increases, reduces or when no-load, and according to transducing signal, oil pressure reduces automatically, increases swash plate inclines main oil pump swash plate
Angle reaches power conservation requirement, mainly significantly reduces the fever of hydraulic system to meet the flow needed for actual load.
When height compresses and washes and sweeps module and be switched to low pressure depositing dust module, low pressure depositing dust switch valve 15 it is electric, proportioning valve 8 is according to low
Pressure drop dirt water nozzle terminal/pressure/flow protects 8 size of current of electromagnetic proportional valve in valve 16 by low pressure depositing dust system pressure
It controlling to control the hydraulic flow into water pump drive motor 11, water pump drive motor 11 rotates water pump 10 according to flow is obtained,
Water pump 10 exports water and when pressure increases therewith, is pressed between proportioning pump oil inlet and fuel-displaced P, P1 if end water nozzle demand volume is excessive
Difference becomes larger, and the output that LS obtains feedback model pump becomes smaller, and 11 rotating speed of water pump drive motor is slack-off, and the situation low pressure depositing dust such as occurs
System pressure protection valve 16 can open, height compress and wash sweep main system pressure protection valve 1718 can also be opened by hydraulic control guide；To
Protect system that secondary pressure is made smoothly to realize and safety work.
Four bar chart of attached drawing intuitively shows the control mode of the system, working method：The power come out from main oil pump
Oil is directly entered by proportioning valve 8 in water pump drive motor 11, drive motor, and motor drives water pump 10 to operate, and water pump 10 is water
Enter high voltage control valve system according to demand by water lines suction casing and realize that height compresses and washes the pattern of sweeping, or enters low voltage control
System carries out low pressure depositing dust pattern；Hydraulic system can in real time be fed back according to actual loading in whole process, and water pump 10 is given
Height compresses and washes can feed back to main oil pump when pattern of sweeping supplies water according to LS feedback proportionals valve 8, and oil pump can increase discharge；When water pump 10 is to low
LS equally feeds back to proportioning valve 8 and feeds back to main oil pump when pressure drop dirt pattern supplies water, and oil pump, which is reduced, to be excluded, and motor rotary speed is reduced, real
It is existing energy saving；When system does not use variable pump, excess traffic can be shunted by proportioning valve 8, or increase through-current capacity and realize water
11 speed control of pump drive motor.
The novel washing, which is swept overall height and compressed and washed, to be swept and low pressure dust falling system can make novel washing sweep overall height and compress and wash to sweep and low pressure depositing dust
Function can merge and upgrade, it is perishable to solve conventional cleaning vehicle low pressure water system, maintenance difficult, and manufacturing cost height etc. is asked
Topic, one whole control hydraulic valve block of present invention design, makes main pump output oil pressure, flow be controlled, to make driving water pump
Motor rotary speed is controlled, and the rotating speed for changing water pump changes realization hydraulic pressure, water rate control.
Claims (3)
1. a kind of novel washing is swept overall height and is compressed and washed and sweeps and low pressure dust falling system, the system include that low pressure depositing dust pattern and height compress and wash and sweep mould
Formula, which is characterized in that it is that the novel sweeper uses high pressure water impact during depth is kept a public place clean that the height, which compresses and washes the pattern of sweeping,
Ground, the generation of high pressure water the hydraulic pressure of water tank is contracted by high-pressure hydraulic pump after by water spout to scrub the work that state rinses road surface
State；The low pressure depositing dust pattern is that the novel sweeper needs to have low pressure depositing dust work shape when slight keep a public place clean
State.
2. a kind of novel washing according to claim 1 is swept overall height and is compressed and washed and sweeps and low pressure dust falling system, which is characterized in that described
Height compress and wash sweep and low pressure dust falling system include a set of shared hydraulic system, a shared power source and a shared water pump,
One integrated control valve group, control water valve, water tank；
The shared hydraulic system includes the hydraulic pump, a hydraulic motor, integrated control valve group, one being connected with each other
A hydraulic oil pipeline attachment and a hydraulic oil container, the shared hydraulic system realize high pressure mode, low pressure by electrical control
Mode operations switch；
The height compresses and washes the pattern of sweeping：Electric control system changes size of current to make integrated control valve group by current potential knob
Through-current capacity drives the rotating speed of hydraulic motor finally to realize high pressure water flow control to change hydraulic pump, with the adjustable reality of size of current
Existing flow, hydraulic pressure size is adjustable；
The low pressure washes the pattern of sweeping：Same current control integrated control valve group, integrated control valve group pass through under same knob
Inner passage changes, and by the main oily introduction passage two of hydraulic pump, setting secondary pressure is protected, and the maximal pressure of hydraulic-driven is limited
Power realizes the control of water yield under depositing dust pattern, liquid to finally realize that motor rotary speed is low to discharge pressure maximum control
Pressure pressure reduces, and again limits maximum pressure to protect low pressure line, realizes low pressure depositing dust system job pattern.
3. a kind of novel washing according to claim 1 is swept overall height and is compressed and washed and sweeps and low pressure dust falling system, which is characterized in that described
High pressure washing pattern include the control system of water pump being connected with each other, unit is swept in high pressure water control valve, side, side cleans unit and inhales bucket
And high-pressure wash spray boom；
The low pressure depositing dust pattern includes that clean unit, side clear for the control system of water pump, low pressure water control valve, side being connected with each other
It sweeps unit and inhales bucket and low pressure depositing dust spray boom.
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| CN201810535436.9A CN108729399A (en) | 2018-05-30 | 2018-05-30 | A kind of novel washing, which is swept overall height and compressed and washed, to be swept and low pressure dust falling system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810535436.9A CN108729399A (en) | 2018-05-30 | 2018-05-30 | A kind of novel washing, which is swept overall height and compressed and washed, to be swept and low pressure dust falling system |
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| CN110593172A (en) * | 2019-10-11 | 2019-12-20 | 徐州徐工环境技术有限公司 | Sweeper with self-adaptive sweeping brush rotating speed and sweeping vehicle speed and control method |
| CN110743903A (en) * | 2019-11-08 | 2020-02-04 | 上海电气集团股份有限公司 | Pump body operation automatic control method |
| CN111979961A (en) * | 2020-08-31 | 2020-11-24 | 长沙中联重科环境产业有限公司 | Control method and system for double-water-pump washing and sweeping vehicle |
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Application publication date: 20181102 |