CN207891693U - A kind of sub-base grader integrated control hydraulic system - Google Patents
A kind of sub-base grader integrated control hydraulic system Download PDFInfo
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- CN207891693U CN207891693U CN201820098418.4U CN201820098418U CN207891693U CN 207891693 U CN207891693 U CN 207891693U CN 201820098418 U CN201820098418 U CN 201820098418U CN 207891693 U CN207891693 U CN 207891693U
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Abstract
The utility model kind sub-base grader integrated control hydraulic system, the system include screed regulating mechanism, hopper regulating mechanism and track tension device；The screed regulating mechanism includes fine motion levelling mechanism, elevating mechanism and telescoping mechanism；The track tension device includes check valve and overflow valve, and third oil circuit flows to paver crawler tensioning oil cylinder after overflow valve, check valve, and is provided with overflow valve between paver crawler tensioning oil cylinder and hydraulic oil container.The utility model kind sub-base grader integrated control hydraulic system, integrated level height and more superiority of effectiveness.
Description
Technical field
The utility model is related to a kind of integrated hydraulic control systems, are applied on sub-base grader more particularly, to one kind
Integrated control hydraulic system, belong to technical field of paver control.
Background technology
The operation process of paver is practical be exactly paving concrete pavement process, needed to paver screed in paving process
Etc. mechanisms do auxiliary movement to ensure construction requirement；Paver will have when walking promotes screed and declines function, to walking
Crawler belt has tensioning function, needs to have independent fine motion screed to make the function of evenness of road surface, hopper when construction with paving machine thus
The folding function of discharging, elongation and the function that shortens of freely-moving mangle；Nowadays realize that the paver of these functions is adopted mostly
It is worked independently with more set controls and cost is higher；Elevating function, fine motion leveling road surface work(of i.e. traditional paver to screed
Energy, traveling crawler tensioning function, hopper folding function, the elongation of freely-moving mangle and shortening function are all independent component control
's；In order to realize that element is more used in the function, piping connection is complicated, interior layout elements are difficult in a limited space, can repair
Property it is poor, to largely improve the production cost of complete machine, also to user bring it is more it is economical, more preferably produce
Product.More and more fierce market competition is thus faced, higher machine manufacturing cost, which will be restricted largely, to pave
The development of machine, especially sales volume and occupation rate of market；Because cost performance is user had to take into account that when choosing paver one
A key factor.
Invention content
High and more superiority of effectiveness the road purpose of the utility model is to overcome the above-mentioned shortcomings and provide a kind of integrated level
Face paver integrated control hydraulic system.
What the purpose of this utility model was realized in：
A kind of sub-base grader integrated control hydraulic system, it is characterised in that：The system includes that screed adjusts machine
Structure, hopper regulating mechanism and track tension device；
The screed regulating mechanism includes fine motion levelling mechanism, elevating mechanism and telescoping mechanism；In hydraulic oil container
Hydraulic oil is divided into the first oil circuit, the second oil circuit and third oil circuit after pump pressurizes by two cascade priority traffic valves；First oil
Road is after flow divider-combiner is divided into two-way respectively after H-type solenoid directional control valve through by bidirectional relief valve, hydraulic lock, one-way speed-regulating valve
It flows to paver screed fine motion leveling cyclinder and constitutes fine motion levelling mechanism；Second oil circuit is through electromagnetic relief valve, Y type electromagnetic switch
Be divided into two-way after valve, wherein be directly connected to two paver screed lifting cylinders all the way, another way through flow divider-combiner again
It is secondary be divided into after two-way each leading into two paver screed lifting cylinders constitute elevating mechanism；Telescoping mechanism is symmetrically arranged with
Two groups, the second oil circuit is connected to the flexible oil of paver screed after Y type solenoid directional control valves after hydraulic lock, one-way speed-regulating valve
Cylinder；
The hopper regulating mechanism is provided with two groups, and every group of hopper regulating mechanism includes O-shaped solenoid directional control valve, overflow valve
With hopper oil cylinder one, hopper oil cylinder two, the second oil circuit enters O-shaped solenoid directional control valve after damping, flows out O-shaped solenoid directional control valve
Hopper oil cylinder one is flowed into through overflow valve all the way in two-way hydraulic oil, another way flows into hopper oil cylinder one and hopper oil cylinder two；
The track tension device includes check valve and overflow valve, and third oil circuit flows to booth after overflow valve, check valve
Paving machine crawler tensioning oil cylinder, and it is provided with overflow valve between paver crawler tensioning oil cylinder and hydraulic oil container.
Compared with prior art, the utility model has the beneficial effects that：
The utility model is by the collaborative work of O-shaped, Y types and H-type solenoid directional control valve by screed regulating mechanism, hopper tune
Save mechanism and track tension device organic combination on one system, and the oil circuit of three parts functional loop in actual use
System entirely in a valve block, in use, only needing each valve port with mutual oil cylinder being connected, greatly reduces
The manufacturing cost of enterprise is conducive to manufacturing enterprise with more preferably cost performance but also later stage installation maintenance is extremely convenient
Seize market.
Description of the drawings
Fig. 1 is a kind of hydraulic circuit diagram of sub-base grader integrated control hydraulic system of the utility model.
Wherein：
One-way speed-regulating valve 1, hydraulic lock 2, bidirectional relief valve 3, solenoid directional control valve 4, flow divider-combiner 5, priority traffic valve 6,
Overflow valve 7, pump 8, hydraulic oil container 9, solenoid directional control valve 10, solenoid directional control valve 11, electromagnetic relief valve 12, solenoid directional control valve 13, resistance
Buddhist nun 14, one-way speed-regulating valve 15, check valve 16, paver screed fine motion leveling cyclinder 17, paver screed lifting cylinder 18,
Hopper oil cylinder 1, hopper oil cylinder 2 20, paver screed telescopic oil cylinder 21, paver crawler tensioning oil cylinder 22.
Specific implementation mode
Referring to Fig. 1, the utility model is related to a kind of sub-base grader integrated control hydraulic system, the system includes
Screed regulating mechanism, hopper regulating mechanism and track tension device；
The screed regulating mechanism includes fine motion levelling mechanism, elevating mechanism and telescoping mechanism；In hydraulic oil container 9
Hydraulic oil is divided by two cascade priority traffic valves 6 for the first oil circuit, the second oil circuit and third oil circuit after 8 pressurization of pump；First
Oil circuit is after flow divider-combiner 5 divides for two-way respectively after H-type solenoid directional control valve 4 through by bidirectional relief valve 3, hydraulic lock 2, unidirectional
Speed governing valve 1 flows to paver screed fine motion leveling cyclinder 17 and constitutes fine motion levelling mechanism；Second oil circuit through electromagnetic relief valve 12,
It is divided into two-way after Y types solenoid directional control valve 11, wherein being directly connected to two paver screed lifting cylinders 18, another way all the way
It is each led into after flow divider-combiner is again split into two-way in two paver screed lifting cylinders 18 and constitutes elevating mechanism；It stretches
Contracting mechanism is symmetrically arranged with two groups, and the second oil circuit is connected to booth after Y type solenoid directional control valves after hydraulic lock, one-way speed-regulating valve 15
Paving machine screed telescopic oil cylinder 21；
The hopper regulating mechanism is provided with two groups, and every group of hopper regulating mechanism includes O-shaped solenoid directional control valve 13, overflow
Valve and hopper oil cylinder 1, hopper oil cylinder 2 20, the second oil circuit enter O-shaped solenoid directional control valve 13 after damping 14, flow out O-shaped electricity
Hopper oil cylinder 1 is flowed into through overflow valve all the way in the two-way hydraulic oil of magnetic reversal valve 13, another way flows into hopper oil cylinder 1
With hopper oil cylinder 2 20；
The track tension device includes check valve 16 and overflow valve, and third oil circuit flows after overflow valve, check valve 16
To paver crawler tensioning oil cylinder 22, and overflow valve is provided between paver crawler tensioning oil cylinder 22 and hydraulic oil container 9；It is described
Overflow valve is precursor overflow valve；
The operation principle of the utility model is：
In original state, system oil inlet P is communicated with priority traffic valve 6, the preferential oil circuit and paver of flow pressure-gradient control valve 2
Screed fine motion leveling Road System circuit communicates, and the extra oil circuit of flow pressure-gradient control valve 2 is communicated with flow pressure-gradient control valve 12, and flow is excellent
The preferential oil circuit of first valve 12 is communicated with paver traveling crawler clamping system circuit, the extra oil circuit and difference of flow pressure-gradient control valve 12
It is communicated with paver screed raising and lowering system, hopper of paver open-close system, paver screed telescopic system.It paves
Machine screed raising and lowering system, hopper of paver open-close system, paver screed telescopic system are using oil circuit in parallel
Connection scheme；
Solenoid directional control valve 4 is the solenoid directional control valve of 3-position 4-way " H " type Median Function, and power failure state is obtained by controlling it,
Realize hydraulic lock 2 by 17 rod chamber of paver screed fine motion leveling cyclinder and rodless cavity to locked effect and screed leveling
The flexible handoff functionality of micro-motion oil cylinder 17；The movement of paver screed fine motion leveling cyclinder 17 is adjusted by one-way speed-regulating valve 1
Speed.Pass through the extra fluid of 3 off-load of bidirectional relief valve.Solenoid directional control valve 11 is that the electromagnetism of 3-position 4-way Y-shaped Median Function changes
To valve, power failure state is obtained by controlling it, realizes floating and the latch functions and screed raising and lowering function of screed.It is logical
Cross the rise and fall that flow divider-combiner 5 realizes the overall leveling of screed.It is 3-position 4-way " O " type by solenoid directional control valve 13
The solenoid directional control valve of Median Function obtains power failure state by controlling it, realizes the handoff functionality of the folding of hopper.Pass through hopper oil
Cylinder 20 is in parallel with the rodless cavity of hopper oil cylinder 19, and the rod chamber of hopper oil cylinder 19 is in parallel with overflow valve 7 to realize opening for magazine-less system
Close function.Connected with check valve 16 by the working connection in parallel of paver crawler tensioning oil cylinder 22 and overflow valve 7, check valve 16 and
The mode in parallel of working connection overflow valve 7 realizes the function of lasting pressurize tensioning.Solenoid directional control valve 11 is in 3-position 4-way Y-shaped
The solenoid directional control valve of median function obtains power failure state by controlling it, realizes that hydraulic lock 2 has paver screed telescopic oil cylinder 21
The handoff functionality that rod cavity and rodless cavity stretch to locked effect with paver screed telescopic oil cylinder 21.
In addition：It should be noted that above-mentioned specific implementation mode is only a prioritization scheme of this patent, the skill of this field
Any change or improvement that art personnel are done according to above-mentioned design, within the protection domain of this patent..
Claims (3)
1. a kind of sub-base grader integrated control hydraulic system, it is characterised in that：The system include screed regulating mechanism,
Hopper regulating mechanism and track tension device；
The screed regulating mechanism includes fine motion levelling mechanism, elevating mechanism and telescoping mechanism；Hydraulic pressure in hydraulic oil container
Oil is divided into the first oil circuit, the second oil circuit and third oil circuit after pump pressurizes by two cascade priority traffic valves；First oil circuit passes through
Flow divider-combiner is divided into after two-way respectively after H-type solenoid directional control valve through being flowed to by bidirectional relief valve, hydraulic lock, one-way speed-regulating valve
Paver screed fine motion leveling cyclinder constitutes fine motion levelling mechanism；Second oil circuit is after electromagnetic relief valve, Y type solenoid directional control valves
It is divided into two-way, wherein being directly connected to two paver screed lifting cylinders all the way, another way is divided again through flow divider-combiner
Elevating mechanism is constituted to be each led into after two-way in two paver screed lifting cylinders；Telescoping mechanism is symmetrically arranged with two
Group, the second oil circuit are connected to paver screed telescopic oil cylinder after Y type solenoid directional control valves after hydraulic lock, one-way speed-regulating valve；
The hopper regulating mechanism is provided with two groups, and every group of hopper regulating mechanism includes O-shaped solenoid directional control valve, overflow valve and material
Struggle against oil cylinder one, hopper oil cylinder two, and the second oil circuit enters O-shaped solenoid directional control valve after damping, flows out the two-way of O-shaped solenoid directional control valve
Hopper oil cylinder one is flowed into through overflow valve all the way in hydraulic oil, another way flows into hopper oil cylinder one and hopper oil cylinder two.
2. a kind of sub-base grader integrated control hydraulic system as described in claim 1, it is characterised in that：The crawler tensioning machine
Structure includes check valve and overflow valve, and third oil circuit flows to paver crawler tensioning oil cylinder after overflow valve, check valve, and paves
It is provided with overflow valve between machine crawler tensioning oil cylinder and hydraulic oil container.
3. a kind of sub-base grader integrated control hydraulic system as described in claim 1, it is characterised in that：Overflow valve overflows for guide
Flow valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820098418.4U CN207891693U (en) | 2018-01-22 | 2018-01-22 | A kind of sub-base grader integrated control hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820098418.4U CN207891693U (en) | 2018-01-22 | 2018-01-22 | A kind of sub-base grader integrated control hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207891693U true CN207891693U (en) | 2018-09-21 |
Family
ID=63544756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820098418.4U Active CN207891693U (en) | 2018-01-22 | 2018-01-22 | A kind of sub-base grader integrated control hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207891693U (en) |
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2018
- 2018-01-22 CN CN201820098418.4U patent/CN207891693U/en active Active
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