CN105134679B - High-flow high-pressure bypass loading device for hydraulic system - Google Patents
High-flow high-pressure bypass loading device for hydraulic system Download PDFInfo
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- CN105134679B CN105134679B CN201510609964.0A CN201510609964A CN105134679B CN 105134679 B CN105134679 B CN 105134679B CN 201510609964 A CN201510609964 A CN 201510609964A CN 105134679 B CN105134679 B CN 105134679B
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- oil circuit
- pressure regulator
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- pressure
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Abstract
The invention discloses a high-flow high-pressure bypass loading device for a hydraulic system. The high-flow high-pressure bypass loading device comprises an integrated valve block (1), the integrated valve block (1) comprises an external control oil line I (5) and an external control oil line II (6) which are arranged in parallel and connected with an external control oil line (2), the front section of the external control oil line I (5) is provided with a first proportional valve (7) and a first on-off valve (8) which are connected in parallel, the rear section of the external control oil line I (5) is provided with a first hydraulic control pressure regulating valve (9), the front section of the external control oil line II (6) is provided with a second proportional valve (10), the rear section of the external control oil line II (6) is provided with a second hydraulic control pressure regulating valve (11), and the upstream part of the first hydraulic control pressure regulating valve (9) and the upstream part of the second hydraulic control pressure regulating valve (11) are communicated through a second on-off valve (12). The high-flow high-pressure bypass loading device has the advantages that the device is small in size, simple in pipe structure, light in weight, short in high-flow loading time, free of errors and high in reliability and both a small-flow high-pressure loading function and a high-flow high-pressure loading function are considered.
Description
Technical field
The present invention relates to a kind of hydraulic system charger, particularly a kind of hydraulic system big-flow high-pressure shunting plus carry
Put.
Background technology
Traditional flow, pressure-loaded mainly adopts pipeline parts, such as proportioning valve, charge valve, filter to be adjusted
Control, traditional flow, pressure loading device design are generally all relatively simple, or design is applied to low discharge low pressure loading,
Design, when its design is loaded suitable for big-flow high-pressure, is generally all used suitable for small flow high pressure loading
Generally there is flow-control in the method that two-way hydraulic control pipeline controls respectively two hydraulic control pressure regulator valves, the design for so controlling respectively
Some are so required strict flow-control by the problem of error, and the reliability of device is not just ensured；And work as traffic requirement
In more than 1000L/min, high pressure in more than 55MPa, the charge valve response time of traditional charger all 500ms with
On, charge valve response time is oversize；And traditional big-flow high-pressure charger, generally all volume ratio is larger, and comparison is heavy,
Pipeline structure is more complicated.Therefore, there is narrow application range in traditional flow, pressure loading device；It is simultaneously traditional
High-pressure high-flow charger is present：Volume is big, pipeline structure is complicated, device is heavy, the big flow load time is longer, have error
The problem relatively low with device reliability.
The content of the invention
It is an object of the present invention to provide a kind of hydraulic system big-flow high-pressure shunts charger, it have small volume,
Pipeline structure is simple, lightweight, the big flow load time is short, error free, device reliability is higher, take into account small flow high pressure loading
The characteristics of function being loaded with big-flow high-pressure.
Technical scheme：Hydraulic system big-flow high-pressure shunts charger, including integrated valve block, integrated valve block
Outside is connected with external control oil circuit, working connection I, working connection II, oil circuit isocon I and oil circuit isocon II；Integrated valve block is included simultaneously
External control oil circuit I and external control oil circuit II that connection is arranged and is connected with external control oil circuit, external control oil circuit I leading portions are provided with first for being connected in series
Proportioning valve and the first on-off valve, external control oil circuit I back segments are provided with the first hydraulic control pressure regulator valve, and external control oil circuit II leading portions are provided with the second ratio
Valve, external control oil circuit II back segments are provided with the outside control mouth of the second hydraulic control pressure regulator valve, the first hydraulic control pressure regulator valve and the second hydraulic control pressure regulator valve and lead to
Cross the connection of the second on-off valve；The import of the first hydraulic control pressure regulator valve and the second hydraulic control pressure regulator valve connects respectively working connection I and working connection
II, the outlet of the first hydraulic control pressure regulator valve and the second hydraulic control pressure regulator valve connects respectively oil circuit isocon I and oil circuit isocon II.
In above-mentioned hydraulic system big-flow high-pressure shunting charger, first proportioning valve and first being connected in series
On-off valve, is the first proportioning valve and the first on-off valve being sequentially connected.
In aforesaid hydraulic system big-flow high-pressure shunting charger, first proportioning valve and first being connected in series
On-off valve, is the first on-off valve and the first proportioning valve being sequentially connected.
In aforesaid hydraulic system big-flow high-pressure shunting charger, the integrated valve block is the integral type of metal material
Structure or split-type structural.
In aforesaid hydraulic system big-flow high-pressure shunting charger, first proportioning valve and the second proportioning valve are
Pilot-operated type threeway proportional pressure-reducing valve.
In aforesaid hydraulic system big-flow high-pressure shunting charger, first on-off valve and the second on-off valve are
Two-way pair is stopped the logical only in opposite direction of electromagnetic valve, the first on-off valve and the second on-off valve.
In aforesaid hydraulic system big-flow high-pressure shunting charger, the first hydraulic control pressure regulator valve and the second hydraulic control are adjusted
Pressure valve is two-way inserting proportional pressure control valve.
In aforesaid hydraulic system big-flow high-pressure shunting charger, the integrated valve block is rectangular shape, in it
Portion is the pipeline oil channel structure that in length and breadth staggered floor is arranged and interconnected.
In aforesaid hydraulic system big-flow high-pressure shunting charger, first proportioning valve, the second proportioning valve, first
Pile-up valve is installed or be inserted into on-off valve, the second on-off valve, the first hydraulic control pressure regulator valve and the second hydraulic control pressure regulator valve by screw thread
Outside block.
Compared with prior art, the present invention has small volume, simple structure, lightweight, big flow load time short, errorless
Difference, device reliability is higher, take into account small flow high pressure loading and the characteristics of big-flow high-pressure loading function.The present invention passes through external control
The second proportioning valve on the first proportioning valve, the first on-off valve, the first hydraulic control pressure regulator valve and external control oil circuit II on oil circuit I, second
Hydraulic control pressure regulator valve, then together with the second on-off valve between same two oil circuit come adjust loading whole device in flow and pressure, valve
Between rational position, connected mode simplifies pipeline structure, makes whole device volume diminish, and weight also lightens.The present invention
By the close fit between valve, rationally opening and closing, take into account whole device and be provided with small flow high pressure loading and big-flow high-pressure
The function of loading, by controlling two on-off valves, can make this device have big flow, the function of high pressure loading, wherein making
During with this scheme, only has 200ms to big flow, high pressure load time, the big flow load time shortens.Simultaneously the present invention is logical
The keying crossed between valve, when carrying out big flow loading, as a result of with external control oil circuit all the way two hydraulic control pressure regulation is controlled simultaneously
Valve, it is thus eliminated that the error that two-way external control oil circuit two hydraulic control pressure regulator valves of independent control are brought, while also simplify oil circuit
Structure, improve the reliability of device.
Description of the drawings
Fig. 1 is the structure principle chart of the present invention；
Fig. 2 is the basic structure schematic diagram of integrated valve block.
Labelling in accompanying drawing for：1- integrated valve blocks, 2- external control oil circuits, 3- working connection I, 4- working connection II, 5- external control oil circuits
I, 6- external control oil circuit II, the proportioning valves of 7- first, the on-off valves of 8- first, 9- the first hydraulic control pressure regulator valves, the proportioning valves of 10- second, 11-
Two hydraulic control pressure regulator valves, the on-off valves of 12- second, 13- oil circuit isocon I, 14- oil circuit isocon II.
Specific embodiment
With reference to the accompanying drawings and examples the present invention is further illustrated, but be not intended as to the present invention limit according to
According to.
Embodiment.Hydraulic system big-flow high-pressure shunts charger, constitutes as depicted in figs. 1 and 2, including integrated valve block
1, with external control oil circuit 2, working connection I3 and working connection II4, oil circuit isocon I13 and oil circuit isocon II14 outside integrated valve block 1
Connection；Integrated valve block 1 includes external control oil circuit I5 and the external control oil circuit II6 for being arranged in parallel and being connected with external control oil circuit 2, external control oil circuit
I5 leading portions are provided with the first proportioning valve 7 and the first on-off valve 8 being connected in series, and external control oil circuit I5 back segments are provided with the first hydraulic control pressure regulator valve
9, external control oil circuit II6 leading portions are provided with the second proportioning valve 10, and external control oil circuit II6 back segments are provided with the second hydraulic control pressure regulator valve 11, the first liquid
The outside control mouth upstream of the control hydraulic control pressure regulator valve 11 of pressure regulator valve 9 and second is connected by the second on-off valve 12；The He of first hydraulic control pressure regulator valve 9
The import of the second hydraulic control pressure regulator valve 11 connects respectively working connection I3 and working connection II4, and the first hydraulic control pressure regulator valve 9 and the second hydraulic control are adjusted
The outlet of pressure valve 11 connects respectively oil circuit isocon I13 and oil circuit isocon II14.
First proportioning valve 7 being connected in series and the first on-off valve 8, are the first proportioning valves 7 and first being sequentially connected
On-off valve 8.First proportioning valve 7 being connected in series and the first on-off valve 8, are the first on-off valves 8 and first being sequentially connected
Proportioning valve 7.The integrated valve block 1 is the integral structure or split-type structural of metal material；Wherein split-type structural can divide
Can be attached by arranging pipeline with integration section, wherein oil circuit control is loaded for external control integration section.First ratio
The example proportioning valve 10 of valve 7 and second is pilot-operated type threeway proportional pressure-reducing valve, wherein the pressure adjustment amount of valve and the signal of telecommunication being input into
It is directly proportional.The on-off valve 12 of first on-off valve 8 and second is two-way double only electromagnetic valve, the first on-off valve 8 and the second break-makes
Valve 12 it is logical only in opposite direction, specially：During the first 8 power-off of on-off valve fluid can T-B two-way circulate, T-B is two-way during energization
Cut-off；And the second on-off valve 12 then conversely, be powered when fluid can T-B two-way circulate, T-B two-way stops during power-off.Described
One hydraulic control pressure regulator valve 9 and the second hydraulic control pressure regulator valve 11 are two-way inserting proportional pressure control valve, wherein the pressure adjustment of valve and external control
The pressure of oil is proportional.The integrated valve block 1 is rectangular shape, and its internal staggered floor in length and breadth is arranged and interconnected
Pipeline oil channel structure.First proportioning valve 7, the second proportioning valve 10, the first on-off valve 8, the second on-off valve 12, the first hydraulic control are adjusted
The hydraulic control pressure regulator valve 11 of pressure valve 9 and second is installed or is inserted into outside integrated valve block by screw thread.
The present invention operation principle be：
Under normal circumstances, there are two kinds of working conditions.The first working condition：First on-off valve 8 is powered, the second on-off valve 12
Power-off, external control oil circuit 2 can only carry out pressure regulation by external control oil circuit II6 through the second proportioning valve 10, then be adjusted by the second hydraulic control
The outside control mouth of pressure valve 11 enters pressure regulator valve, so as to adjust the pressure of working connection II4, realizes single oil circuit Loading Control.Second work
Make state：The power-off of first on-off valve 8, the power-off of the second on-off valve 12, the fluid of external control oil circuit 2 is respectively by external control oil circuit I5 and outer
The control and regulation of the first proportioning valve 7 and the second proportioning valve 10 on the II6 of oil-control road connect giving working connection I3 and working connection II4
The the first hydraulic control pressure regulator valve 9 and the second hydraulic control pressure regulator valve 11 for connecing provides outer governor pressure, so as to reach to working connection I3 and working connection
The purpose that II4 is independently loaded.
When needing to carry out big flow loading and require two working connections loading response time in short-term, only need to be by external control oil circuit I5
The first on-off valve 8 be powered, the second on-off valve 12 being connected between the first pilot operated valve device 9 and the outside control mouth of the second pilot operated valve device 11 is powered
Opening is allowed to oil circuit circulation, and so, the oil mass of external control oil circuit 2 can only flow through the second proportioning valve 10 of external control oil circuit II6 leading portions and enter
Row pressure is adjusted, the and of the first hydraulic control pressure regulator valve 9 for then connecting respectively to working connection I3 back segments in parallel, working connection II4 back segments
Second hydraulic control pressure regulator valve 11 provides external pressure control, to reach synchronous to working connection I3 and working connection II4 shuntings during big flow adding
The purpose of load.The mode of two hydraulic control pressure regulator valves is so controlled simultaneously as a result of an external control oil circuit, it is thus eliminated that two
The error that road external control oil circuit two hydraulic control pressure regulator valves of independent control are brought, simplifies oil channel structures, improves the reliability of device
Property.
Claims (7)
1. hydraulic system big-flow high-pressure shunts charger, and, in more than 1000L/min, high pressure is in more than 55MPa, and it is special for flow
Levy and be：Including integrated valve block (1), integrated valve block (1) outside and external control oil circuit (2), working connection I (3), working connection II (4), oil
Road isocon I (13) and oil circuit isocon II (14) connect；Integrated valve block (1) is including being arranged in parallel and with external control oil circuit (2) even
External control oil circuit I (5) for connecing and external control oil circuit II (6), external control oil circuit I (5) leading portion be provided with the first proportioning valve (7) for being connected in series and
First on-off valve (8), external control oil circuit I (5) back segment is provided with the first hydraulic control pressure regulator valve (9), and external control oil circuit II (6) leading portion is provided with second
Proportioning valve (10), external control oil circuit II (6) back segment is provided with the second hydraulic control pressure regulator valve (11), the first hydraulic control pressure regulator valve (9) and the second liquid
The outside control mouth of control pressure regulator valve (11) is connected by the second on-off valve (12)；First hydraulic control pressure regulator valve (9) and the second hydraulic control pressure regulator valve
(11) import connects respectively working connection I (3) and working connection II (4), the first hydraulic control pressure regulator valve (9) and the second hydraulic control pressure regulator valve
(11) outlet connects respectively oil circuit isocon I (13) and oil circuit isocon II (14)；First proportioning valve (7) and the second ratio
Example valve (10) is pilot-operated type threeway proportional pressure-reducing valve.
2. hydraulic system big-flow high-pressure according to claim 1 shunts charger, it is characterised in that：The series connection connects
The first proportioning valve (7) for connecing and the first on-off valve (8), are the first proportioning valves (7) and the first on-off valve (8) being sequentially connected, or
It is the first on-off valve (8) and the first proportioning valve (7) being sequentially connected.
3. hydraulic system big-flow high-pressure according to claim 1 shunts charger, it is characterised in that：The pile-up valve
Block (1) for metal material integral structure or split-type structural.
4. hydraulic system big-flow high-pressure according to claim 1 shunts charger, it is characterised in that：Described first leads to
Disconnected valve (8) and the second on-off valve (12) are two-way double the logical of only electromagnetic valve, the first on-off valve (8) and the second on-off valve (12) to be stopped
It is in opposite direction.
5. hydraulic system big-flow high-pressure according to claim 1 shunts charger, it is characterised in that：First liquid
Control pressure regulator valve (9) and the second hydraulic control pressure regulator valve (11) are two-way inserting proportional pressure control valve.
6. hydraulic system big-flow high-pressure according to claim 1 shunts charger, it is characterised in that：The pile-up valve
Block (1) is rectangular shape, and its inside is the pipeline oil channel structure that in length and breadth staggered floor is arranged and interconnected.
7. hydraulic system big-flow high-pressure according to any one of claim 1 to 6 shunts charger, and its feature exists
In：First proportioning valve (7), the second proportioning valve (10), the first on-off valve (8), the second on-off valve (12), the first hydraulic control pressure regulation
Integrated valve block (1) outside is installed or be inserted into valve (9) and the second hydraulic control pressure regulator valve (11) by screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510609964.0A CN105134679B (en) | 2015-09-23 | 2015-09-23 | High-flow high-pressure bypass loading device for hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510609964.0A CN105134679B (en) | 2015-09-23 | 2015-09-23 | High-flow high-pressure bypass loading device for hydraulic system |
Publications (2)
| Publication Number | Publication Date |
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| CN105134679A CN105134679A (en) | 2015-12-09 |
| CN105134679B true CN105134679B (en) | 2017-05-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510609964.0A Active CN105134679B (en) | 2015-09-23 | 2015-09-23 | High-flow high-pressure bypass loading device for hydraulic system |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115901277B (en) * | 2023-03-02 | 2023-06-02 | 中国航发沈阳发动机研究所 | Hydraulic loading method and device suitable for aeroengine ground test |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5836335A (en) * | 1991-08-19 | 1998-11-17 | Fluid Power Industries, Inc. | Proportional pressure control valve |
| US7516792B2 (en) * | 2002-09-23 | 2009-04-14 | Exxonmobil Upstream Research Company | Remote intervention logic valving method and apparatus |
| CN101537469A (en) * | 2009-04-15 | 2009-09-23 | 中南大学 | High-precision synchronizing device for forging moving beam of hydraulic press |
| CN103203852A (en) * | 2012-01-11 | 2013-07-17 | 博创机械股份有限公司 | Servo-valve-controlled injection oil path system of large-scale injection molding machine |
| CN205013423U (en) * | 2015-09-23 | 2016-02-03 | 中航力源液压股份有限公司 | Large -traffic high pressure reposition of redundant personnel loading device of hydraulic system |
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