CN208236798U - The hydraulic control system and road sweeper of sweep device - Google Patents
The hydraulic control system and road sweeper of sweep device Download PDFInfo
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- CN208236798U CN208236798U CN201820453103.7U CN201820453103U CN208236798U CN 208236798 U CN208236798 U CN 208236798U CN 201820453103 U CN201820453103 U CN 201820453103U CN 208236798 U CN208236798 U CN 208236798U
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Abstract
The utility model discloses a kind of hydraulic control system of sweep device and the road sweeper of the hydraulic control system including the sweep device, the hydraulic control system of the sweep device includes the first brush telescopic oil cylinder, the second brush telescopic oil cylinder and two-position four-way solenoid directional control valve, and the first brush telescopic oil cylinder is for driving the first brush stretching, extension or retracting；Second brush telescopic oil cylinder is for driving the second brush stretching, extension or retracting；The B mouth of two-position four-way solenoid directional control valve and the rod chamber of the rod chamber of the first brush telescopic oil cylinder and the second brush telescopic oil cylinder are all connected with, the rodless cavity of first brush telescopic oil cylinder is connect by the first normally closed type two-position two-way electromagnetic directional valve with the A of two-position four-way solenoid directional control valve mouth, and the rodless cavity of the second brush telescopic oil cylinder is connect by the second normally closed type two-position two-way electromagnetic directional valve with the A of two-position four-way solenoid directional control valve mouth.The hydraulic control system and road sweeper of the sweep device can adjust the stretching, extension situation of brush, so that the cleaning width of sweep device is adjustable.
Description
Technical field
The utility model relates to ground cleaning technology fields, hydraulic control system more particularly to sweep device and sweep road
Machine.
Background technique
Road sweeper is a kind of walking arrangement using power drive unit, for removing, collecting ground refuse, is widely applied
In the cleaning equipment of the occasions such as urban road, square, park, school, cell.Road sweeper greatly reduces the work of sanitationman
Intensity and raising working efficiency.The cleaning width of road sweeper depends primarily on the cleaning width of two brush of road sweeper, sweeps road at present
Machine generally uses fixed brush, in order to facilitate transition and enters relatively narrow street, the cleaning width of brush can only be slightly wider than whole
Vehicle-width, in this way cleaning width are restricted, road cleaning low efficiency.In addition surface conditions are complicated, road tooth, street lamp occurring
The height such as column, guardrail leads to the damage of pavement facilities or disc brush beyond rigid collision is easy to happen in the case where pavement device.
Current brush anticollision device, collision-prevention device mainly uses spring to realize barrier avoiding function, and spring is too soft to be easy to cause trembling for disc brush in the course of work
It is dynamic, influence cleaning rate；Spring is easy to cause very much the damage of disc brush or pavement device firmly.
Utility model content
The purpose of the utility model is to provide a kind of hydraulic control system of sweep device and road sweepers, above-mentioned existing to solve
The problem of with the presence of technology, can adjust the stretching, extension situation of brush, so that the cleaning width of sweep device is adjustable.
To achieve the above object, the utility model provides following scheme:
The utility model provides a kind of hydraulic control system of sweep device, including the first brush telescopic oil cylinder, second sweeps
Brush telescopic oil cylinder and two-position four-way solenoid directional control valve, the first brush telescopic oil cylinder is for driving the first brush stretching, extension or contracting
It returns；The second brush telescopic oil cylinder is for driving the second brush stretching, extension or retracting；The B mouth of the two-position four-way solenoid directional control valve
It is all connected with the rod chamber of the first brush telescopic oil cylinder and the rod chamber of the second brush telescopic oil cylinder, described first sweeps
The rodless cavity of brush telescopic oil cylinder passes through the A of the first normally closed type two-position two-way electromagnetic directional valve and the two-position four-way solenoid directional control valve
The rodless cavity of mouth connection, the second brush telescopic oil cylinder passes through the second normally closed type two-position two-way electromagnetic directional valve and described two
The A mouth of four-way electromagnetic reversing valve connects.
It preferably, further include the first accumulator, the second accumulator and overflow valve, the two-position four-way solenoid directional control valve and institute
The pipeline for stating the rod chamber connection of the first brush telescopic oil cylinder is equipped with the first check valve, first check valve and described first
First accumulator, and the shoe cream room of first accumulator are connected on the pipeline of the rod chamber connection of brush telescopic oil cylinder
It is connect with the rod chamber of the first brush telescopic oil cylinder；The two-position four-way solenoid directional control valve and the flexible oil of second brush
The pipeline of the rod chamber connection of cylinder is equipped with second one-way valve, and the second one-way valve has with the second brush telescopic oil cylinder
It is connected with second accumulator on the pipeline of rod cavity connection, and the shoe cream room of second accumulator is stretched with second brush
The rod chamber of contracting oil cylinder connects；The B mouth and first check valve of the two-position four-way solenoid directional control valve and described second are unidirectionally
It is connect on the pipeline of valve connection with the oil inlet of the overflow valve.
Preferably, the inlet and outlet both ends of first check valve and it is connected with the first shut-off valve, the second one-way valve
Inlet and outlet both ends and be connected with the second shut-off valve.
Preferably, the pipeline that first check valve is connect with first accumulator is equipped with the first pressure measuring tie-in, institute
It states the pipeline that second one-way valve is connect with second accumulator and is equipped with the second pressure measuring tie-in.
Preferably, the P mouth of the two-position four-way solenoid directional control valve is connected with an operating oil tank, and the two-position four-way electromagnetism changes
It is connected with an oil return fuel tank to the T mouth of valve, the outlet of the overflow valve connects the oil return fuel tank.
Preferably, the pipeline that the two-position four-way solenoid directional control valve is connect with the operating oil tank is equipped with third and surveys crimping
Head.
Preferably, further include controller, the controller respectively with the two-position four-way solenoid directional control valve, it is described first often
Enclosed two-position two-way electromagnetic directional valve, the second normally closed type two-position two-way electromagnetic directional valve, the overflow valve, first list
It is surveyed to valve, the second one-way valve, first shut-off valve, second shut-off valve, first pressure measuring tie-in, described second
Crimp head and third pressure measuring tie-in communication connection.
The present invention also provides a kind of road sweepers, the hydraulic control system including sweep device and sweep device as described above
System, the sweep device include the first brush and the second brush.
Preferably, the sweep device further includes brush assembly hanging plate, brush left swing arm and brush right swing arm, the brush
Assembly hanging plate is docked with road sweeper rack, and it is left that the both ends of the brush assembly hanging plate along its length are separately installed with brush swing arm
Fixing seat and the right fixing seat of brush swing arm；One end of the brush left swing arm is articulated in the left fixing seat of brush swing arm, institute
The other end for stating brush left swing arm is equipped with first brush；One end of the brush right swing arm is articulated with the brush swing arm
In right fixing seat, the other end of the brush right swing arm is equipped with second brush；The cylinder of the first brush telescopic oil cylinder
Body is articulated in the left fixing seat of brush swing arm, the free end of the piston rod of the first brush telescopic oil cylinder and the brush
Left swing arm is hinged；The cylinder body of the second brush telescopic oil cylinder is articulated in the right fixing seat of brush swing arm, and described second sweeps
The free end of the piston rod of brush telescopic oil cylinder and the brush right swing arm are hinged.
Preferably, when the piston rod of the first brush telescopic oil cylinder is stretched out to outside cylinder body, first brush is to inside contracting
It returns, when the piston rod of the first brush telescopic oil cylinder is withdrawn into cylinder body, first brush is flexed outward；Described second sweeps
When the piston rod of brush telescopic oil cylinder is stretched out to outside cylinder body, second brush is inwardly retracted, the second brush telescopic oil cylinder
When piston rod is withdrawn into cylinder body, second brush is flexed outward.
The utility model achieves following technical effect compared with the existing technology:
The hydraulic control system and sweep device of sweep device provided by the utility model, when work, two-position four-way electromagnetism
The P mouth of reversal valve accesses power oil sources, when two-position four-way solenoid directional control valve and the first normally closed type two-position two-way electromagnetic directional valve obtain
When electric, pressure oil by two-position four-way solenoid directional control valve enter the first brush telescopic oil cylinder rod chamber, push the first brush to
Outer stretching, extension is opened.When two-position four-way solenoid directional control valve and the second normally closed type two-position two-way electromagnetic directional valve obtain electric, pressure oil is logical
The rod chamber that two-position four-way solenoid directional control valve enters the second brush telescopic oil cylinder is crossed, the second brush stretching, extension is pushed to open.First sweeps
Brush and/or the second brush stretching, extension are opened, and the cleaning width of sweep device is expanded.When the first normally closed type bi-bit bi-pass electromagnetic switch
When valve obtains electric, pressure oil enters first by two-position four-way solenoid directional control valve and the first normally closed type two-position two-way electromagnetic directional valve and sweeps
The rodless cavity of brush telescopic oil cylinder pushes the first brush to retract, and the rod chamber internal hydraulic pressure oil of the first brush telescopic oil cylinder passes through two
Position four-way electromagnetic reversing valve oil return.When the second normally closed type two-position two-way electromagnetic directional valve obtains electric, pressure oil passes through two-position four-way
Solenoid directional control valve and the second normally closed type two-position two-way electromagnetic directional valve enter the rodless cavity of the first brush telescopic oil cylinder, push second
Brush retracts, and the rod chamber internal hydraulic pressure oil of the first brush telescopic oil cylinder passes through the oil return of two-position four-way solenoid directional control valve.First sweeps
Brush and/or the second brush retract, and reduce the cleaning width of sweep device.Being arranged by above structure and being controlled realizes the
Extending and retracting for one brush and the second brush, adjusts the stretching, extension situation of brush, so that the cleaning width of sweep device is adjustable.
Further, the hydraulic control system and sweep device of sweep device provided by the utility model, in road sweeper row
When encountering barrier during walking, the rod chamber internal hydraulic pressure oil of the first brush telescopic oil cylinder can be made in the pressure by barrier
Used time is press-fit into the shoe cream room of the first accumulator, and the rod chamber internal hydraulic pressure oil of the second brush telescopic oil cylinder can hindered
Hinder the pressure of object to be press-fit into when acting in the shoe cream room of the second accumulator temporarily to be stored.After breaking the barriers, first stores
The oil liquid temporarily stored in the shoe cream room of energy device can return again in the rod chamber of the first brush telescopic oil cylinder, the second accumulation of energy
The oil liquid temporarily stored in the shoe cream room of device can return again in the rod chamber of the second brush telescopic oil cylinder, make the first brush
It is resetted with the second brush.The barrier avoiding function of the first brush and the second brush is realized by above-mentioned principle, and can be effectively reduced the
The shake during the work time of one brush and the second brush guarantees sweeping efficiency, and can be effectively reduced when encountering barrier
To the impact damage of sweep device and pavement device.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model
Some embodiments for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other attached drawings.
Fig. 1 is the hydraulic control system configuration schematic diagram of sweep device provided by the utility model；
In figure: 1- two-position four-way solenoid directional control valve；2- the first normally closed type two-position two-way electromagnetic directional valve；The second normally closed type of 3-
Two-position two-way electromagnetic directional valve；The first check valve of 4-；5- second one-way valve；The first shut-off valve of 6-；The second shut-off valve of 7-；8- overflow
Valve；The first accumulator of 9-；The second accumulator of 10-；11- the first brush telescopic oil cylinder；12- and brush telescopic oil cylinder；13- first
Pressure measuring tie-in；The second pressure measuring tie-in of 14-；15- third pressure measuring tie-in.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The purpose of the utility model is to provide a kind of hydraulic control system of sweep device and road sweepers, above-mentioned existing to solve
The problem of with the presence of technology, can adjust the stretching, extension situation of brush, so that the cleaning width of sweep device is adjustable.
To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, with reference to the accompanying drawing and have
Body embodiment is described in further detail the utility model.
Embodiment one
The present embodiment provides a kind of hydraulic control systems of sweep device, as shown in Figure 1, including the first brush telescopic oil cylinder
11, the second brush telescopic oil cylinder 12 and two-position four-way solenoid directional control valve 1.When two-position four-way solenoid directional control valve 1 obtains electric, right position work
Make, i.e. P-B is connected, A-T is connected；When two-position four-way 1 power loss of solenoid directional control valve, left position work, i.e. P-A is connected, B-T is connected.The
One brush telescopic oil cylinder 11 is for driving the first brush stretching, extension or retracting, and the second brush telescopic oil cylinder 12 is for driving the second brush
Stretching, extension retracts；The B mouth of two-position four-way solenoid directional control valve 1 and the rod chamber of the first brush telescopic oil cylinder 11 and the second brush are flexible
The rod chamber of oil cylinder 12 is all connected with, and the rodless cavity of the first brush telescopic oil cylinder 11 passes through the first normally closed type bi-bit bi-pass electromagnetic switch
Valve 2 is connect with the A of two-position four-way solenoid directional control valve 1 mouth, and the rodless cavity of the second brush telescopic oil cylinder 12 passes through the second normally closed type two
Two electric change valves 3 of position are connect with the A of two-position four-way solenoid directional control valve 1 mouth.First normally closed type two-position two-way electromagnetic directional valve 2
With the second normally closed type two-position two-way electromagnetic directional valve 3 be it is electric when i.e. so that oil circuit is connected, so that oil circuit disconnects when power loss.
The hydraulic control system of sweep device provided in this embodiment, when work, the P mouth of two-position four-way solenoid directional control valve 1
Access power oil sources, when two-position four-way solenoid directional control valve 1 and the first normally closed type two-position two-way electromagnetic directional valve 2 it is electric when, pressure
Oil enters the rod chamber of the first brush telescopic oil cylinder 11 by two-position four-way solenoid directional control valve 1, and the first brush is pushed to flex outward
It opens.When two-position four-way solenoid directional control valve 1 and the second normally closed type two-position two-way electromagnetic directional valve 3 obtain electric, pressure oil passes through two
Position four-way electromagnetic reversing valve 1 enters the rod chamber of the second brush telescopic oil cylinder 12, and the second brush stretching, extension is pushed to open.First brush
And/or second brush stretching, extension open, expand the cleaning width of sweep device.When the first normally closed type two-position two-way electromagnetic directional valve
2 it is electric when, pressure oil enters first by two-position four-way solenoid directional control valve 1 and the first normally closed type two-position two-way electromagnetic directional valve 2
The rodless cavity of brush telescopic oil cylinder 11 pushes the first brush to retract, the rod chamber internal hydraulic pressure oil of the first brush telescopic oil cylinder 11
Pass through 1 oil return of two-position four-way solenoid directional control valve.When the second normally closed type two-position two-way electromagnetic directional valve 3 must be electric, pressure oil passes through
Two-position four-way solenoid directional control valve 1 and the second normally closed type two-position two-way electromagnetic directional valve 3 enter the nothing of the first brush telescopic oil cylinder 12
Rod cavity, pushes the second brush to retract, and the rod chamber internal hydraulic pressure oil of the first brush telescopic oil cylinder 12 is changed by two-position four-way electromagnetism
To 1 oil return of valve.First brush and/or the second brush retract, and reduce the cleaning width of sweep device.It is arranged by above structure
And control realizes extending and retracting for the first brush and the second brush, the stretching, extension situation of brush is adjusted, so that sweep device
Cleaning width it is adjustable.
Embodiment two
The present embodiment is to the further improved embodiment of embodiment one comprising the full content of embodiment one, i.e., originally
The hydraulic control system for the sweep device that embodiment provides includes whole knots of the hydraulic control system of one sweep device of embodiment
Structure feature, thes improvement is that:
The hydraulic control system of sweep device provided in this embodiment, as shown in Figure 1, further including the first accumulator 9, second
Accumulator 10 and overflow valve 8, on the pipeline that two-position four-way solenoid directional control valve 1 is connect with the rod chamber of the first brush telescopic oil cylinder 11
Equipped with the first check valve 4, first is connected on the pipeline that the first check valve 4 is connect with the rod chamber of the first brush telescopic oil cylinder 11
Accumulator 9, and the shoe cream room of the first accumulator 9 is connect with the rod chamber of the first brush telescopic oil cylinder 11；Two-position four-way electromagnetism changes
The pipeline connecting to valve 1 with the rod chamber of the second brush telescopic oil cylinder 12 is equipped with second one-way valve 5, second one-way valve 5 and the
The second accumulator 10, and the shoe cream room of the second accumulator 10 are connected on the pipeline of the rod chamber connection of two brush telescopic oil cylinders 12
It is connect with the rod chamber of the second brush telescopic oil cylinder 12；The B mouth of two-position four-way solenoid directional control valve 1 and the first check valve 4 and second
It is connect on the pipeline that check valve 5 connects with the oil inlet of overflow valve 8.
The hydraulic control system of sweep device provided in this embodiment, the first accumulator 9 and the second accumulator 10 be every
Membrane type accumulator, when work, the P mouth of two-position four-way solenoid directional control valve 1 accesses power oil sources, when two-position four-way solenoid directional control valve 1
When obtaining electric with the first normally closed type two-position two-way electromagnetic directional valve 2, pressure oil is unidirectional by two-position four-way solenoid directional control valve 1 and first
Valve 4 enters the rod chamber of the first brush telescopic oil cylinder 11, and the first brush is pushed to flex outward opening and while to the first accumulator 9
Filling liquid.When two-position four-way solenoid directional control valve 1 and the second normally closed type two-position two-way electromagnetic directional valve 3 obtain electric, pressure oil passes through two
Position four-way electromagnetic reversing valve 1 and second one-way valve 5 enter the rod chamber of the second brush telescopic oil cylinder 12, push the second brush stretching, extension
It opens and simultaneously to 10 filling liquid of the second accumulator.When the first normally closed type two-position two-way electromagnetic directional valve 2 must be electric, pressure oil passes through
Two-position four-way solenoid directional control valve 1 and the first normally closed type two-position two-way electromagnetic directional valve 2 enter the nothing of the first brush telescopic oil cylinder 11
Rod cavity pushes the first brush to retract, and the rod chamber internal hydraulic pressure oil of the first brush telescopic oil cylinder 11 enters the first accumulator 9.When
When second normally closed type two-position two-way electromagnetic directional valve 3 obtains electric, pressure oil passes through two-position four-way solenoid directional control valve 1 and the second normally closed type
3 reversal valve of two-position two-way electromagnetic directional valve enters the rodless cavity of the first brush telescopic oil cylinder 12, and the second brush is pushed to retract, and first
The rod chamber internal hydraulic pressure oil of brush telescopic oil cylinder 12 enters the second accumulator 10, realizes the first brush and the by above-mentioned control
Two brushes extend and retract, and adjust the stretching, extension situation of brush, so that the cleaning width of sweep device is adjustable.
Moreover, the hydraulic control system of sweep device provided in this embodiment, encounters obstacle in road sweeper walking process
When object, the rod chamber internal hydraulic pressure oil of the first brush telescopic oil cylinder 11 can be press-fit into the when the pressure by barrier acts on
In the shoe cream room of one accumulator 9, the rod chamber internal hydraulic pressure oil of the second brush telescopic oil cylinder 12 can be in the pressure by barrier
It is press-fit into when effect in the shoe cream room of the second accumulator 10 and is temporarily stored.After breaking the barriers, the storage of the first accumulator 9
The oil liquid temporarily stored in oil pocket can return again in the rod chamber of the first brush telescopic oil cylinder 11, the second accumulator 10
The oil liquid temporarily stored in shoe cream room can return again in the rod chamber of the second brush telescopic oil cylinder 12, make the first brush and
Second brush resets.The barrier avoiding function of the first brush and the second brush is realized by above-mentioned principle, and can be effectively reduced first
The shake during the work time of brush and the second brush guarantees sweeping efficiency, and can be effectively reduced when encountering barrier pair
The impact damage of sweep device and pavement device.Due to the first brush telescopic oil cylinder 11 and the second brush telescopic oil cylinder 12
Rodless cavity pressure it is identical as the P of two-position four-way solenoid directional control valve 1 mouth pressure, the first brush telescopic oil cylinder 11 and the second brush
The pressure and overflow valve 8 of the shoe cream room of the pressure of the rod chamber of telescopic oil cylinder 12 and the first accumulator 9 and the second accumulator 10
Adjustment pressure it is identical, so as to adjust the pressure of overflow valve 8, can to adjust the first brush telescopic oil cylinder 11 and the second brush flexible
The pressure of the shoe cream room of the pressure of the rod chamber of oil cylinder 12 and the first accumulator 9 and the second accumulator 10, by the tune of overflow valve 8
Seamless power is set to be lower than the P mouth power oil sources coming oil pressure of two-position four-way solenoid directional control valve 1, can guarantee after powering
Can be oil-filled to the first accumulator 9 and the second accumulator 10 in one brush and the second brush telescopic process, guarantee the first brush and the
The stretching power of two brushes, and 11 He of the first brush telescopic oil cylinder can be made in the first brush and the second brush retract action
Hydraulic oil has enough pressure-driven pistons by 11 He of the first brush telescopic oil cylinder in the rodless cavity of second brush telescopic oil cylinder 12
Hydraulic oil is respectively pressed into the first accumulator 9 and the second accumulator 10 in the rod chamber of second brush telescopic oil cylinder 12.
The inlet and outlet both ends of first check valve 4 are simultaneously connected with the first shut-off valve 6, the inlet and outlet of second one-way valve 5
Both ends are simultaneously connected with the second shut-off valve 7.
In brush debugging process after the assembly is completed, need to open the first shut-off valve 6 and the second shut-off valve 7, and repeatedly
Make the piston rod of the first brush telescopic oil cylinder 11 and the second brush telescopic oil cylinder 12 extend and retract movement in order to pipeline and
First brush telescopic oil cylinder 11 and the discharge of 12 internal gas of the second brush telescopic oil cylinder, need after the completion of debugging by the first shut-off valve
6 and second shut-off valve 7 close, and give the first accumulator 9 and the second accumulator respectively by opening the first brush and the second brush
10 filling liquids.It needs before the brush maintenance in later period and to the first accumulator 9 and the second accumulator 10 supplement nitrogen by first section
Only valve 6 and the second shut-off valve 7 are opened to allow 10 pressure release of the first accumulator 9 and the second accumulator, prevent from directly dismantling first and store
Can device 6 and the second accumulator 7 and there is high pressure liquid pressure oil caused by the pipeline of part and directly spray to hurt sb.'s feelings.
The first shut-off valve 6 and the second shut-off valve 7 are all closed states in road sweeper course of normal operation.Only work as vehicle
Maintenance, repair or to the first accumulator 9, the second accumulator 10 supplement nitrogen when need to open the first shut-off valve 6 and second section
Only valve 7 allow the first accumulator 9, the 10 internal pressure oil pressure release of the second accumulator to guarantee that safety and nitrogen inflating pressure are correct.
The pipeline that first check valve 4 is connect with the first accumulator 9 be equipped with the first pressure measuring tie-in 13, second one-way valve 5 with
The pipeline of second accumulator 10 connection is equipped with the second pressure measuring tie-in 14.
The P mouth of two-position four-way solenoid directional control valve 1 is connected with an operating oil tank, the T mouth connection of two-position four-way solenoid directional control valve 1
The outlet of oily fuel tank once, overflow valve 8 connects oil return fuel tank.
The pipeline that two-position four-way solenoid directional control valve 1 is connect with operating oil tank is equipped with third pressure measuring tie-in 15.
First pressure measuring tie-in 13, the second pressure measuring tie-in 14 and third pressure measuring tie-in 15 are respectively used to measure at its setting position
Operating pressure, easy access and investigation fault point
The hydraulic control system of sweep device provided in this embodiment, further includes controller, controller respectively with two four
Electric change valve 1, the second normally closed type two-position two-way electromagnetic directional valve 3, overflows at first normally closed type two-position two-way electromagnetic directional valve 2
It flows valve 8, the first check valve 4, second one-way valve 5, the first shut-off valve 6, the second shut-off valve 7, the first pressure measuring tie-in 13, second and surveys pressure
Connector 14 and third pressure measuring tie-in 15 communicate to connect.
Embodiment three
The present embodiment provides a kind of road sweeper, the liquid including the sweep device in sweep device embodiment one or embodiment two
Pressure control system, sweep device include the first brush and the second brush.
Sweep device further includes brush assembly hanging plate, brush left swing arm and brush right swing arm, brush assembly hanging plate and sweeps road
The docking of machine rack, the both ends of brush assembly hanging plate along its length are separately installed with the left fixing seat of brush swing arm and brush swing arm is right
Fixing seat；One end of brush left swing arm is articulated in the left fixing seat of brush swing arm, and the other end of brush left swing arm is equipped with first
Brush；One end of brush right swing arm is articulated in the right fixing seat of brush swing arm, and the other end of brush right swing arm is equipped with second and sweeps
Brush；The cylinder body of first brush telescopic oil cylinder 11 is articulated in the left fixing seat of brush swing arm, the piston of the first brush telescopic oil cylinder 11
The free end of bar and brush left swing arm are hinged；The cylinder body of second brush telescopic oil cylinder 12 is articulated in the right fixing seat of brush swing arm,
The free end of the piston rod of second brush telescopic oil cylinder 12 and brush right swing arm are hinged.
When the piston rod of first brush telescopic oil cylinder 11 is stretched out to outside cylinder body, it is able to drive the first brush and inwardly retracts, the
When the piston rod of one brush telescopic oil cylinder 11 is withdrawn into cylinder body, it is able to drive the first brush and flexes outward；Second brush is flexible
When the piston rod of oil cylinder 12 is stretched out to outside cylinder body, it is able to drive the second brush and inwardly retracts, the work of the second brush telescopic oil cylinder 12
When stopper rod is withdrawn into cylinder body, it is able to drive the second brush and flexes outward.
Specific case is applied in the utility model to be expounded the principles of the present invention and embodiment, it is above
The explanation of embodiment is merely used to help understand the method and its core concept of the utility model；Meanwhile for the one of this field
As technical staff, based on the idea of the present invention, there will be changes in the specific implementation manner and application range.To sum up
Described, the content of the present specification should not be construed as a limitation of the present invention.
Claims (10)
1. a kind of hydraulic control system of sweep device, it is characterised in that: include:
First brush telescopic oil cylinder, the first brush telescopic oil cylinder is for driving the first brush stretching, extension or retracting；
Second brush telescopic oil cylinder, the second brush telescopic oil cylinder is for driving the second brush stretching, extension or retracting；And
Two-position four-way solenoid directional control valve, the B mouth of the two-position four-way solenoid directional control valve and having for the first brush telescopic oil cylinder
The rod chamber of rod cavity and the second brush telescopic oil cylinder is all connected with, and the rodless cavity of the first brush telescopic oil cylinder passes through first
Normally closed type two-position two-way electromagnetic directional valve is connect with the A mouth of the two-position four-way solenoid directional control valve, the flexible oil of second brush
The rodless cavity of cylinder is connect by the second normally closed type two-position two-way electromagnetic directional valve with the A mouth of the two-position four-way solenoid directional control valve.
2. the hydraulic control system of sweep device according to claim 1, it is characterised in that: further include the first accumulator,
Second accumulator and overflow valve, the two-position four-way solenoid directional control valve are connect with the rod chamber of the first brush telescopic oil cylinder
Pipeline is equipped with the first check valve, on the pipeline that first check valve is connect with the rod chamber of the first brush telescopic oil cylinder
It is connected with first accumulator, and the rod chamber of the shoe cream room of first accumulator and the first brush telescopic oil cylinder connects
It connects；It is single that the pipeline that the two-position four-way solenoid directional control valve is connect with the rod chamber of the second brush telescopic oil cylinder is equipped with second
To valve, it is connected with described second on the pipeline that the second one-way valve is connect with the rod chamber of the second brush telescopic oil cylinder and stores
Energy device, and the shoe cream room of second accumulator is connect with the rod chamber of the second brush telescopic oil cylinder；The two-position four-way
Oil inlet on the pipeline that the B mouth of solenoid directional control valve is connect with first check valve and the second one-way valve with the overflow valve
Mouth connection.
3. the hydraulic control system of sweep device according to claim 2, it is characterised in that: first check valve into
Mouth and outlet both ends are simultaneously connected with the first shut-off valve, and the inlet and outlet both ends of the second one-way valve are simultaneously connected with the second shut-off valve.
4. the hydraulic control system of sweep device according to claim 3, it is characterised in that: first check valve and institute
The pipeline for stating the connection of the first accumulator is equipped with the first pressure measuring tie-in, and the second one-way valve is connect with second accumulator
Pipeline is equipped with the second pressure measuring tie-in.
5. the hydraulic control system of sweep device according to claim 4, it is characterised in that: the two-position four-way electromagnetism changes
It is connected with an operating oil tank to the P mouth of valve, the T mouth of the two-position four-way solenoid directional control valve is connected with an oil return fuel tank, described to overflow
The outlet for flowing valve connects the oil return fuel tank.
6. the hydraulic control system of sweep device according to claim 5, it is characterised in that: the two-position four-way electromagnetism changes
The pipeline connecting to valve with the operating oil tank is equipped with third pressure measuring tie-in.
7. the hydraulic control system of sweep device according to claim 6, it is characterised in that: it further include controller, it is described
Controller respectively with the two-position four-way solenoid directional control valve, the first normally closed type two-position two-way electromagnetic directional valve, described second
It is normally closed type two-position two-way electromagnetic directional valve, the overflow valve, first check valve, the second one-way valve, first section described
Only valve, second shut-off valve, first pressure measuring tie-in, second pressure measuring tie-in and the third pressure measuring tie-in communication link
It connects.
8. a kind of road sweeper, it is characterised in that: including sweep device and sweep device according to any one of claims 1 to 7
Hydraulic control system, the sweep device include the first brush and the second brush.
9. road sweeper according to claim 8, it is characterised in that: the sweep device further includes brush assembly hanging plate, sweeps
Brush left swing arm and brush right swing arm, the brush assembly hanging plate are docked with road sweeper rack, and the brush assembly hanging plate is along length
The both ends in direction are separately installed with the left fixing seat of brush swing arm and the right fixing seat of brush swing arm；It cuts with scissors one end of the brush left swing arm
It is connected in the left fixing seat of brush swing arm, the other end of the brush left swing arm is equipped with first brush；The brush
One end of right swing arm is articulated in the right fixing seat of brush swing arm, and the other end of the brush right swing arm is equipped with described second
Brush；The cylinder body of the first brush telescopic oil cylinder is articulated in the left fixing seat of brush swing arm, and first brush is flexible
The free end of the piston rod of oil cylinder and the brush left swing arm are hinged；The cylinder body of the second brush telescopic oil cylinder is articulated with described
In the right fixing seat of brush swing arm, the free end of the piston rod of the second brush telescopic oil cylinder and the brush right swing arm are hinged.
10. road sweeper according to claim 9, it is characterised in that: the piston rod of the first brush telescopic oil cylinder is to cylinder
When external stretching, first brush is inwardly retracted, when the piston rod of the first brush telescopic oil cylinder is withdrawn into cylinder body, institute
The first brush is stated to flex outward；When the piston rod of the second brush telescopic oil cylinder is stretched out to outside cylinder body, second brush to
When the piston rod of interior retraction, the second brush telescopic oil cylinder is withdrawn into cylinder body, second brush is flexed outward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820453103.7U CN208236798U (en) | 2018-04-02 | 2018-04-02 | The hydraulic control system and road sweeper of sweep device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820453103.7U CN208236798U (en) | 2018-04-02 | 2018-04-02 | The hydraulic control system and road sweeper of sweep device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208236798U true CN208236798U (en) | 2018-12-14 |
Family
ID=64586140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820453103.7U Expired - Fee Related CN208236798U (en) | 2018-04-02 | 2018-04-02 | The hydraulic control system and road sweeper of sweep device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208236798U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111321689A (en) * | 2020-03-27 | 2020-06-23 | 海汇新能源汽车有限公司 | Electric control device of multifunctional electric sweeping vehicle |
-
2018
- 2018-04-02 CN CN201820453103.7U patent/CN208236798U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111321689A (en) * | 2020-03-27 | 2020-06-23 | 海汇新能源汽车有限公司 | Electric control device of multifunctional electric sweeping vehicle |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 350600 Building 7, Pioneer Park, Songshan District, Fuzhou Taiwanese Investment Zone, Luoyuan County, Fuzhou City, Fujian Province Patentee after: Fujian Ronggong Environmental Protection Machinery Co., Ltd. Address before: 350600 Building 7, Pioneer Park, Songshan District, Fuzhou Taiwanese Investment Zone, Luoyuan County, Fuzhou City, Fujian Province Patentee before: Fujian Yung Chi environmental protection machinery manufacturing Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181214 Termination date: 20210402 |