CN208040792U - A kind of hydraulic system - Google Patents
A kind of hydraulic system Download PDFInfo
- Publication number
- CN208040792U CN208040792U CN201820382217.7U CN201820382217U CN208040792U CN 208040792 U CN208040792 U CN 208040792U CN 201820382217 U CN201820382217 U CN 201820382217U CN 208040792 U CN208040792 U CN 208040792U
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- hydraulic
- valve
- hydraulic cylinder
- reversing valve
- way electro
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Abstract
The utility model discloses kind of a hydraulic systems, including hydraulic cylinder, the hydraulic pump of driving hydraulic cylinder action, the hydraulic cylinder is connect with hydraulic pump by 3-position 4-way electro-hydraulic reversing valve I, further include 3-position 4-way electro-hydraulic reversing valve II, accumulator, pilot operated compound relief valve, the 3-position 4-way electro-hydraulic reversing valve II is connected to hydraulic cylinder and hydraulic pump, the oil circuit of the 3-position 4-way electro-hydraulic reversing valve II and hydraulic cylinder is equipped with one-way throttle valve, and the accumulator, pilot operated compound relief valve are connected to 3-position 4-way electro-hydraulic reversing valve I, 3-position 4-way electro-hydraulic reversing valve II.The utility model passes through two electro-hydraulic commutators, alloing hydraulic cylinder, there are two types of different working conditions when mobile, and accumulator is increased in oil circuit, it ensure that pressure and oil mass in oil circuit are stablized, coordinate the use of two reversal valves, so that the stand-by period of hydraulic cylinder can be substantially reduced, improve work efficiency.
Description
Technical field
The utility model is related to the driving structures of technical field of hydraulic, especially hydraulic cylinder.
Background technology
In machinery field, it is often necessary to use driving device and be driven to execution unit.And hydraulic cylinder is common
Driving mechanism is required for establishing a hydraulic system in the prior art so that hydraulic cylinder is moving in order to which driving hydraulic cylinder acts
Task can be executed well in the process.But in existing hydraulic system, due to lacking effective control so that hydraulic cylinder
Piston rod is not rapid enough when mobile, steady, and in requiring higher and higher competitive environment now, being badly in need of one kind can
Quick and stable realizes the hydraulic system of piston rod movement.
Utility model content
The technical problems to be solved in the utility model is：A kind of driving hydraulic cylinder of capableing of is provided and carries out quick and stable movement
Hydraulic system.
The solution that the utility model solves its technical problem is：A kind of hydraulic system, including hydraulic cylinder drive hydraulic pressure
The hydraulic pump of cylinder action, the hydraulic cylinder are connect with hydraulic pump by 3-position 4-way electro-hydraulic reversing valve I, further include 3-position 4-way electricity
Liquid reversal valve II, accumulator, pilot operated compound relief valve, the 3-position 4-way electro-hydraulic reversing valve II connect with hydraulic cylinder and hydraulic pump
Logical, the oil circuit of the 3-position 4-way electro-hydraulic reversing valve II and hydraulic cylinder is equipped with one-way throttle valve, and the accumulator, pilot-operated type overflow
Stream valve is connected to 3-position 4-way electro-hydraulic reversing valve I, 3-position 4-way electro-hydraulic reversing valve II.
As a further improvement of the above technical scheme, it is connected with solenoid valve on the pilot operated compound relief valve.
As a further improvement of the above technical scheme, further include having cooler, the cooler is connected to hydraulic pump.
As a further improvement of the above technical scheme, further include shut-off valve, the shut-off valve is connected to hydraulic pump.
As a further improvement of the above technical scheme, it is additionally provided with check valve between the accumulator and hydraulic pump.
The utility model has the beneficial effects that：The utility model passes through two electro-hydraulic commutators, one of them electro-hydraulic commutation
Device increase has throttle valve so that hydraulic cylinder when mobile can there are two types of different working conditions, and increase in oil circuit
Accumulator is added, ensure that the pressure and oil mass in oil circuit are stablized so that oil circuit can be fast after the action of each hydraulic cylinder
Speed supplement hydraulic oil, the use of two reversal valves of cooperation improve so that the stand-by period of hydraulic cylinder can be substantially reduced
Working efficiency.
Description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described.Obviously, described attached drawing is a part of the embodiment of the utility model, rather than complete
Portion's embodiment, those skilled in the art without creative efforts, can also be obtained according to these attached drawings it
His design scheme and attached drawing.
Fig. 1 is the hydraulic schematic diagram of the utility model.
Specific implementation mode
The technique effect of the design of the utility model, concrete structure and generation is carried out below with reference to embodiment and attached drawing
It clearly and completely describes, to be completely understood by the purpose of this utility model, feature and effect.Obviously, described embodiment
It is a part of the embodiment of the utility model, rather than whole embodiments, it is based on the embodiments of the present invention, the skill of this field
The other embodiment that art personnel are obtained without creative efforts belongs to the model of the utility model protection
It encloses.In addition, all connection/connection relations being previously mentioned in text, not singly refer to component and directly connect, and referring to can be according to specific reality
Situation is applied, by adding or reducing couple auxiliary, to form more preferably coupling structure.Each technology in the invention is special
Sign, can be with combination of interactions under the premise of not conflicting conflict.
Referring to Fig.1, a kind of hydraulic system, including hydraulic cylinder 1, the hydraulic pump 2 that driving hydraulic cylinder 1 acts, the hydraulic cylinder 1
It is connect by 3-position 4-way electro-hydraulic reversing valve I3 with hydraulic pump 2, further includes 3-position 4-way electro-hydraulic reversing valve II4, accumulator 5, elder generation
Conduction overflow valve 6, the 3-position 4-way electro-hydraulic reversing valve II4 are connected to hydraulic cylinder 1 and hydraulic pump 2, the 3-position 4-way electricity
The oil circuit of liquid reversal valve II4 and hydraulic cylinder 1 is equipped with one-way throttle valve 7, the accumulator 5, pilot operated compound relief valve 6 with three
Four-way electro-hydraulic reversing valve I3, the II4 connections of 3-position 4-way electro-hydraulic reversing valve.It is between hydraulic cylinder and 3-position 4-way electro-hydraulic reversing valve I
Be connected directly, to enable hydraulic oil, rapidly driving hydraulic cylinder is fast forwarded through or is retreated, and when hydraulic oil be through
When crossing 3-position 4-way electro-hydraulic reversing valve II and enter hydraulic cylinder, due to there is one-way throttle valve, one-way throttle is adjusted to pass through
Valve can reliably control the speed of hydraulic cylinder；Therefore hydraulic cylinder can be made rapidly to realize two operating rates
Switching, greatly increase working efficiency；And due to increasing accumulator in oil circuit, it is in due course will be in system
Energy conversion be that compression energy or potential energy store, be changed into hydraulic pressure or gas when system needs, and by compression energy or potential energy
Pressure etc. can and release, mend feed system again.When system instantaneous pressure increases, it can absorb the energy of this part,
To ensure that whole system pressure is normal.
It is further used as preferred embodiment, solenoid valve 8 is connected on the pilot operated compound relief valve 6.Pass through pilot-operated type
Overflow valve can enable the hydraulic pressure of system to stablize.
It is further used as preferred embodiment, further includes having cooler 9, the cooler 9 is connected to hydraulic pump 2.Work
When making, hydraulic system high temperature oil stream through hydraulic oil cooler, in the heat exchanger in cooler with the cold air of forced flow
Efficient heat exchange is carried out, so that oil temperature is down to operating temperature to ensure that host is carried out continuously normal operation, keeps work suitable
Profit is carried out.
It is further used as preferred embodiment, further includes shut-off valve 10, the shut-off valve 10 is connected to hydraulic pump 2.It wants
Circulation and cut-off for controlling fluid in hydraulic system pipeline, integrated oil path.One end of shut-off valve is also associated with pressure gauge.
It is further used as preferred embodiment, check valve 11 is additionally provided between the accumulator 5 and hydraulic pump 2.
The better embodiment of the utility model is illustrated above, but the invention be not limited to it is described
Embodiment, those skilled in the art can also make various equivalent changes without departing from the spirit of the present invention
Type or replacement, these equivalent modifications or replacement are all contained in the application claim limited range.
Claims (5)
1. a kind of hydraulic system, including hydraulic cylinder (1), the hydraulic pump (2) of driving hydraulic cylinder (1) action, the hydraulic cylinder (1) with
Hydraulic pump (2) passes through 3-position 4-way electro-hydraulic reversing valve I (3) connections, it is characterised in that：Further include 3-position 4-way electro-hydraulic reversing valve II
(4), accumulator (5), pilot operated compound relief valve (6), the 3-position 4-way electro-hydraulic reversing valve II (4) and hydraulic cylinder (1) and hydraulic pressure
(2) connection is pumped, the 3-position 4-way electro-hydraulic reversing valve II (4) and the oil circuit of hydraulic cylinder (1) are equipped with one-way throttle valve (7), institute
State accumulator (5), pilot operated compound relief valve (6) with 3-position 4-way electro-hydraulic reversing valve I (3), 3-position 4-way electro-hydraulic reversing valve II (4)
Connection.
2. hydraulic system according to claim 1, it is characterised in that：It is connected with electromagnetism on the pilot operated compound relief valve (6)
Valve (8).
3. hydraulic system according to claim 2, it is characterised in that：Further include having cooler (9), the cooler (9)
It is connected to hydraulic pump (2).
4. hydraulic system according to claim 3, it is characterised in that：Further include shut-off valve (10), the shut-off valve (10)
It is connected to hydraulic pump (2).
5. hydraulic system according to claim 4, it is characterised in that：It is also set between the accumulator (5) and hydraulic pump (2)
There is check valve (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820382217.7U CN208040792U (en) | 2018-03-20 | 2018-03-20 | A kind of hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820382217.7U CN208040792U (en) | 2018-03-20 | 2018-03-20 | A kind of hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208040792U true CN208040792U (en) | 2018-11-02 |
Family
ID=63949026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820382217.7U Active CN208040792U (en) | 2018-03-20 | 2018-03-20 | A kind of hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208040792U (en) |
-
2018
- 2018-03-20 CN CN201820382217.7U patent/CN208040792U/en active Active
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| GR01 | Patent grant |