CN205858814U - The hydraulic system that a kind of pair vane pump PQ valve controls - Google Patents
The hydraulic system that a kind of pair vane pump PQ valve controls Download PDFInfo
- Publication number
- CN205858814U CN205858814U CN201620614634.0U CN201620614634U CN205858814U CN 205858814 U CN205858814 U CN 205858814U CN 201620614634 U CN201620614634 U CN 201620614634U CN 205858814 U CN205858814 U CN 205858814U
- Authority
- CN
- China
- Prior art keywords
- valve
- directional control
- solenoid directional
- control valve
- cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 244000035744 Hura crepitans Species 0.000 claims abstract description 17
- 239000002828 fuel tank Substances 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims description 8
- 238000000465 moulding Methods 0.000 abstract description 12
- 238000004134 energy conservation Methods 0.000 abstract description 3
- 239000004576 sand Substances 0.000 description 7
- 239000003110 molding sand Substances 0.000 description 4
- 238000007596 consolidation process Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Fluid-Pressure Circuits (AREA)
Abstract
The utility model discloses the hydraulic system that a kind of pair vane pump PQ valve controls, including fuel tank, pair vane pump group, solenoid directional control valve E, check valve, PQ valve, solenoid directional control valve A, solenoid directional control valve B, one-way throttle valve A, Solenoid ball valve A, solenoid directional control valve C, hydraulic control one-way valve A, one-way throttle valve B, Solenoid ball valve B, solenoid directional control valve D, hydraulic control one-way valve B, upper sandbox pushes away cylinder, mode transfer cylinder, squeezing cylinder and lower sandbox push away cylinder, two oilholes on described squeezing cylinder connect two working holes of solenoid directional control valve A respectively by pipeline, described lower sandbox pushes away two oilholes of two cylinder bodies in parallel in cylinder respectively by two working holes of pipeline connection solenoid directional control valve B, Solenoid ball valve A is connected between two working holes of solenoid directional control valve B.This utility model meets existing level formula full-automatic moulding machine working condition requirement, and energy-conservation, efficiently, flexible variable is controlled, low cost.
Description
Technical field
This utility model relates to a kind of hydraulic system, the pair vane pump of the full-automatic moulding machine of a kind of horizontal
The hydraulic system that PQ valve controls.
Background technology
Moulding machine is the Casting Equipment for manufacturing sand mold.Its major function is: back-up sand, and loose molding sand is inserted sand
In case；Consolidation molding sand, by ram-jolt, is compacted, jolt-squeezes, penetrates the distinct methods such as pressure and make molding sand consolidation loose in sandbox, make sand mold
Have necessary strength during carrying and cast etc.；Molding, utilizes different institutions will to take apperance sand mold after consolidation
Go out.Moulding machine comes across mid-term in 19th century the earliest, and moulding machine in early days is the mechanism of a kind of simple manual compaction band molding, after
Use compressed air as ram-jolt and the power of compacting molding sand.Within 1890, occur in that jarring formula moulding machine, make moulding efficiency and
Sand mold precision all has been improved.
The hydraulic system of existing moulding machine is the most complicated, and the waste energy.
Utility model content
The purpose of this utility model is the hydraulic system providing a kind of pair vane pump PQ valve to control, to solve the above-mentioned back of the body
The problem proposed in scape technology.
For achieving the above object, the following technical scheme of this utility model offer:
The hydraulic system that a kind of pair vane pump PQ valve controls, including fuel tank, pair vane pump group, solenoid directional control valve E, list
To valve, PQ valve, solenoid directional control valve A, solenoid directional control valve B, one-way throttle valve A, Solenoid ball valve A, solenoid directional control valve C, fluid-control one-way
Valve A, one-way throttle valve B, Solenoid ball valve B, solenoid directional control valve D, hydraulic control one-way valve B, upper sandbox push away cylinder, mode transfer cylinder, squeezing cylinder and
Lower sandbox pushes away cylinder, and two oilholes on described squeezing cylinder connect two working holes of solenoid directional control valve A respectively by pipeline, described
Lower sandbox pushes away two oilholes of two cylinder bodies in parallel in cylinder respectively by two working holes of pipeline connection solenoid directional control valve B, electricity
The pipeline connected on Solenoid ball valve A, and two working holes of solenoid directional control valve B is connected between two working holes of magnetic reversal valve B
On be respectively provided with one-way throttle valve A；Described upper sandbox pushes away two oilholes of cylinder respectively by two of pipeline connection solenoid directional control valve C
Working hole, connects between two working holes of solenoid directional control valve C on Solenoid ball valve B, and two working holes of solenoid directional control valve C and connects
Hydraulic control one-way valve A and one-way throttle valve B it is respectively provided with on the pipeline connect；Two oilholes of described mode transfer cylinder are respectively by pipeline even
Connect two working holes of solenoid directional control valve D, the pipeline that two working holes of solenoid directional control valve D connect is respectively provided with fluid-control one-way
Valve B；The feed liquor valve opening of described solenoid directional control valve A, solenoid directional control valve B, solenoid directional control valve C and solenoid directional control valve D all passes through pipeline
Connecting the delivery outlet of PQ valve, the input hole of PQ valve connects the outfan of pair vane pump group, pair vane pump group by check valve
Input connect fuel tank by pipeline, an electromagnetic switch in parallel on the pipeline between described check valve and pair vane pump group
Valve E.
As further program of the utility model: the described feed liquor valve opening time liquid valve by pipe electromagnetic reversal valve A
Hole directly connects fuel tank by pipeline, and the liquid valve opening that returns of solenoid directional control valve B, solenoid directional control valve C and solenoid directional control valve D all passes through
Return filter connects fuel tank.
As further program of the utility model: described Solenoid ball valve A and Solenoid ball valve B respectively by overflow valve A and
Overflow valve B connects back to the input of oil strainer.
As further program of the utility model: described PQ valve, solenoid directional control valve and check valve constitute PQ control valve group.
Compared with prior art, the beneficial effects of the utility model are: it is full-automatic that this utility model meets existing level formula
Moulding machine working condition requirement, energy-conservation, efficiently, flexible variable is controlled, low cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under making creative work premise
The every other embodiment obtained, broadly falls into the scope of this utility model protection.
Referring to Fig. 1, in this utility model embodiment, the hydraulic system that a kind of pair vane pump PQ valve controls, including oil
Case 1, pressure-detecting device 2, pair vane pump group 3, solenoid directional control valve E4, check valve 5, PQ valve 6, Pressure gauge 7, solenoid directional control valve
A8, solenoid directional control valve B9, one-way throttle valve A10, overflow valve A11, Solenoid ball valve A12, solenoid directional control valve C13, hydraulic control one-way valve
A14, one-way throttle valve B15, overflow valve B16, Solenoid ball valve B17, solenoid directional control valve D18, hydraulic control one-way valve B19, upper sandbox push away
Cylinder 20, mode transfer cylinder 21, squeezing cylinder 22, lower sandbox push away cylinder 23, and two oilholes on described squeezing cylinder 22 are connected by pipeline respectively
Two working holes of solenoid directional control valve A8, described lower sandbox pushes away two oilholes of two cylinder bodies in parallel in cylinder 23 and passes through pipeline respectively
Connect two working holes of solenoid directional control valve B9, between two working holes of solenoid directional control valve B9, connect Solenoid ball valve A12, and electricity
It is respectively provided with one-way throttle valve A10 on the pipeline connected on two working holes of magnetic reversal valve B9；Described upper sandbox pushes away the two of cylinder 20
Individual oilhole connects two working holes of solenoid directional control valve C13 respectively by pipeline, between two working holes of solenoid directional control valve C13
Connect and be respectively provided with hydraulic control one-way valve A14 on the pipeline connected on Solenoid ball valve B17, and two working holes of solenoid directional control valve C13
With one-way throttle valve B15；Two oilholes of described mode transfer cylinder 21 connect two work of solenoid directional control valve D18 respectively by pipeline
Hole, the pipeline that two working holes of solenoid directional control valve D18 connect is respectively provided with hydraulic control one-way valve B19.
The feed liquor valve opening of described solenoid directional control valve A8, solenoid directional control valve B9, solenoid directional control valve C13 and solenoid directional control valve D18
All connected the delivery outlet of PQ valve 6 by pipeline, the input hole of PQ valve 6 connects the output of pair vane pump group 3 by check valve 5
End, the input of pair vane pump group 3 connects fuel tank 1, the pipe between described check valve 5 and pair vane pump group 3 by pipeline
A solenoid directional control valve E4 in parallel on road.
Described feed liquor valve opening directly connects fuel tank 1 by pipeline by the liquid valve opening that returns of pipe electromagnetic reversal valve A8, and
The liquid valve opening that returns of solenoid directional control valve B9, solenoid directional control valve C13 and solenoid directional control valve D18 all connects fuel tank 1 by return filter.
Described Solenoid ball valve A12 and Solenoid ball valve B17 connects oil return filter by overflow valve A11 and overflow valve B16 respectively
The input of device.
Operation principle of the present utility model is:
Described PQ control valve group is made up of PQ valve 6, solenoid directional control valve 4 and check valve 5, it is achieved pair vane pump group 3 defeated
Going out the regulation of pressure and flow, described operated control valve group is by solenoid directional control valve (8,9,13,18), one-way throttle valve (15), liquid
Control check valve (14,19), Solenoid ball valve (12,17), overflow valve (11,16) composition, control squeezing cylinder, lower sandbox push away steel, upper sand
Case pushes away cylinder, mode transfer cylinder action, described Solenoid ball valve and a road valve and forms oil cylinder following loop.This utility model meets existing level
Formula full-automatic moulding machine working condition requirement, energy-conservation, efficiently, flexible variable is controlled, low cost.
It is obvious to a person skilled in the art that this utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, it is possible to realize this practicality in other specific forms new
Type.Therefore, no matter from the point of view of which point, all should regard embodiment as exemplary, and be nonrestrictive, this practicality is new
The scope of type is limited by claims rather than described above, it is intended that by the containing of equivalency in claim that fall
All changes in justice and scope are included in this utility model.Should not be considered as any reference in claim limiting
Involved claim.
Although moreover, it will be appreciated that this specification is been described by according to embodiment, but the most each embodiment only wraps
Containing an independent technical scheme, this narrating mode of description is only that for clarity sake those skilled in the art should
Description can also be formed those skilled in the art through appropriately combined as an entirety, the technical scheme in each embodiment
May be appreciated other embodiments.
Claims (4)
1. the hydraulic system that pair vane pump PQ valve controls, including fuel tank, pair vane pump group, solenoid directional control valve E, unidirectional
Valve, PQ valve, solenoid directional control valve A, solenoid directional control valve B, one-way throttle valve A, Solenoid ball valve A, solenoid directional control valve C, hydraulic control one-way valve
A, one-way throttle valve B, Solenoid ball valve B, solenoid directional control valve D, hydraulic control one-way valve B, upper sandbox push away cylinder, mode transfer cylinder, squeezing cylinder and under
Sandbox pushes away cylinder, it is characterised in that two oilholes on described squeezing cylinder connect two works of solenoid directional control valve A respectively by pipeline
Making hole, described lower sandbox pushes away two oilholes of two cylinder bodies in parallel in cylinder respectively by two of pipeline connection solenoid directional control valve B
Working hole, connects between two working holes of solenoid directional control valve B on Solenoid ball valve A, and two working holes of solenoid directional control valve B and connects
One-way throttle valve A it is respectively provided with on the pipeline connect；Described upper sandbox pushes away two oilholes of cylinder and connects electromagnetic switch by pipeline respectively
Two working holes of valve C, connect Solenoid ball valve B, and two of solenoid directional control valve C between two working holes of solenoid directional control valve C
It is respectively provided with hydraulic control one-way valve A and one-way throttle valve B on the pipeline connected on working hole；Two oilholes of described mode transfer cylinder lead to respectively
Piping connects two working holes of solenoid directional control valve D, and the pipeline that two working holes of solenoid directional control valve D connect is respectively provided with
Hydraulic control one-way valve B；The feed liquor valve opening of described solenoid directional control valve A, solenoid directional control valve B, solenoid directional control valve C and solenoid directional control valve D is equal
Connected the delivery outlet of PQ valve by pipeline, the input hole of PQ valve connects the outfan of pair vane pump group, duplex by check valve
The input of vane pump group connects fuel tank by pipeline, parallel connection one on the pipeline between described check valve and pair vane pump group
Solenoid directional control valve E.
The hydraulic system that a kind of pair vane pump PQ valve the most according to claim 1 controls, it is characterised in that described enters
Liquid valve opening directly connects fuel tank by pipeline by the liquid valve opening that returns of pipe electromagnetic reversal valve A, and solenoid directional control valve B, electromagnetism change
All fuel tank is connected by return filter to the liquid valve opening that returns of valve C and solenoid directional control valve D.
The hydraulic system that a kind of pair vane pump PQ valve the most according to claim 1 controls, it is characterised in that described electromagnetism
Ball valve A and Solenoid ball valve B connects back to the input of oil strainer respectively by overflow valve A and overflow valve B.
The hydraulic system that a kind of pair vane pump PQ valve the most according to claim 1 controls, it is characterised in that described PQ
Valve, solenoid directional control valve and check valve constitute PQ control valve group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620614634.0U CN205858814U (en) | 2016-06-19 | 2016-06-19 | The hydraulic system that a kind of pair vane pump PQ valve controls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620614634.0U CN205858814U (en) | 2016-06-19 | 2016-06-19 | The hydraulic system that a kind of pair vane pump PQ valve controls |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205858814U true CN205858814U (en) | 2017-01-04 |
Family
ID=57637721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620614634.0U Expired - Fee Related CN205858814U (en) | 2016-06-19 | 2016-06-19 | The hydraulic system that a kind of pair vane pump PQ valve controls |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205858814U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109386513A (en) * | 2018-12-11 | 2019-02-26 | 中航工业南京伺服控制系统有限公司 | A kind of PQ valve |
| CN110395229A (en) * | 2019-07-29 | 2019-11-01 | 北京航天发射技术研究所 | A kind of leveling support device and leveling method based on remote wireless control |
-
2016
- 2016-06-19 CN CN201620614634.0U patent/CN205858814U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109386513A (en) * | 2018-12-11 | 2019-02-26 | 中航工业南京伺服控制系统有限公司 | A kind of PQ valve |
| CN110395229A (en) * | 2019-07-29 | 2019-11-01 | 北京航天发射技术研究所 | A kind of leveling support device and leveling method based on remote wireless control |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201580012U (en) | Hydraulic control system for hydraulic press | |
| CN205858814U (en) | The hydraulic system that a kind of pair vane pump PQ valve controls | |
| CN104776086A (en) | Remanufactured oil cylinder performance detection platform | |
| CN104944326B (en) | A kind of grinding roller of vertical mill rises roller system with hydraulic pressure | |
| CN204591872U (en) | One manufactures oil cylinder performance detecting platform again | |
| CN202621870U (en) | Hydraulic system of energy-saving die-casting machine | |
| CN201061823Y (en) | Press-ejecting oilway device of hot room die casting machine | |
| CN205918670U (en) | Beat sign indicating number hydraulic press hydraulic control system | |
| CN204175686U (en) | A kind of bender hydraulic system | |
| CN205001266U (en) | High pressure hydraulic pressure supercharging device | |
| CN206009749U (en) | A kind of plunger displacement pump proportionally controlled hydraulic system of the full-automatic moulding machine of horizontal | |
| CN203772528U (en) | Valve pressure test water circulation device | |
| CN203023801U (en) | Liquid replenishment system | |
| CN205806044U (en) | A kind of energy-saving hydraulic system | |
| CN105889160B (en) | Steel scrap cuts quick hydraulic system | |
| CN205260458U (en) | Ship unloaders hydraulic control system | |
| CN202164528U (en) | Novel emulsified asphalt spreading device | |
| CN202592698U (en) | Hydraulic control integrated device for injection molding machine | |
| CN206035922U (en) | Hot chamber die casting machine hydraulic system | |
| CN202367160U (en) | Hydraulic system for compaction cylinder of molding machine | |
| CN104500476B (en) | Alternate one-way valve and pressurization system | |
| CN103203852A (en) | Servo-valve-controlled injection oil path system of large-scale injection molding machine | |
| CN203108949U (en) | Water supply system for parallel running of ultrafast cooling system and laminar cooling system | |
| CN214007641U (en) | High-efficient press integrated system | |
| CN205148834U (en) | Injection molding machine preformed back pressure control return circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170104 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |