CN105134679A - 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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- CN105134679A CN105134679A CN201510609964.0A CN201510609964A CN105134679A CN 105134679 A CN105134679 A CN 105134679A CN 201510609964 A CN201510609964 A CN 201510609964A CN 105134679 A CN105134679 A CN 105134679A
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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 deceleration loading device, particularly a kind of hydraulic system big-flow high-pressure shunting deceleration loading device.
Background technique
traditional flow, pressure-loaded mainly adopts pipeline parts, as Proportional valve, charge valve, filters etc. carry out regulable control, traditional flow, pressure loading device design is usually all more single, design is applicable to small flow low pressure and loads, design is applicable to small flow high pressure and loads, and when its design being applicable to big-flow high-pressure and loading, usually be all the method using two-way hydraulic control pipeline to control two hydraulic control pressure regulator valves respectively, the design controlled so respectively, usually there is the problem of flow control error, so to the flow control that ask for something is strict, the reliability of device does not just ensure, and when traffic requirement is at more than 1000L/min, high pressure is when more than 55MPa, and the charge valve response time of traditional deceleration loading device, the charge valve response time was oversize all at more than 500ms, and traditional big-flow high-pressure deceleration loading device, all volume ratio is comparatively large, heavier usually, pipeline structure more complicated.Therefore, there is the problem of narrow application range in traditional flow, pressure loading device; Simultaneously traditional high-pressure high-flow deceleration loading device exists: volume is large, pipeline structure is complicated, device is heavy, the large discharge load time is longer, have error and the lower problem of device reliability.
Summary of the invention
the object of the invention is to, there is provided a kind of hydraulic system big-flow high-pressure to shunt deceleration loading device, it has, and volume be little, pipeline structure is simple, lightweight, the large discharge load time is short, error free, device reliability is higher, take into account the feature of small flow high pressure loading and big-flow high-pressure value-added tax function.
technological scheme of the present invention: hydraulic system big-flow high-pressure shunting deceleration loading device, comprises integrated valve block, and integrated valve block outside is connected with external control oil circuit, working connection I, working connection II, oil circuit ram's horns I and oil circuit ram's horns II; Integrated valve block comprises and being arranged in parallel and the external control oil circuit I be connected with external control oil circuit and external control oil circuit II, external control oil circuit I leading portion is provided with the first Proportional valve and the first on-off valve that are connected in series, external control oil circuit I back segment is provided with the first hydraulic control pressure regulator valve, external control oil circuit II leading portion is provided with the second Proportional valve, external control oil circuit II back segment is provided with the second hydraulic control pressure regulator valve, and the first hydraulic control pressure regulator valve is connected by the second on-off valve with the outside control mouth of the second hydraulic control pressure regulator valve; First hydraulic control pressure regulator valve is connected working connection I and working connection II respectively with the import of the second hydraulic control pressure regulator valve, and the first hydraulic control pressure regulator valve and the outlet of the second hydraulic control pressure regulator valve are connected oil circuit ram's horns I and oil circuit ram's horns II respectively.
in above-mentioned hydraulic system big-flow high-pressure shunting deceleration loading device, described in the first Proportional valve of being connected in series and the first on-off valve, be the first Proportional valve and the first on-off valve that connect successively.
in aforesaid hydraulic system big-flow high-pressure shunting deceleration loading device, described in the first Proportional valve of being connected in series and the first on-off valve, be the first on-off valve and the first Proportional valve that connect successively.
in aforesaid hydraulic system big-flow high-pressure shunting deceleration loading device, described integrated valve block is integral structure or the split-type structural of metallic material.
in aforesaid hydraulic system big-flow high-pressure shunting deceleration loading device, described first Proportional valve and the second Proportional valve are leading type threeway proportional pressure-reducing valve.
in aforesaid hydraulic system big-flow high-pressure shunting deceleration loading device, described first on-off valve and the second on-off valve are two-way two only solenoid valve, and the logical direction of stopping of the first on-off valve and the second on-off valve is contrary.
in aforesaid hydraulic system big-flow high-pressure shunting deceleration loading device, described first hydraulic control pressure regulator valve and the second hydraulic control pressure regulator valve are two-way plug-in mounting proportional pressure control valve.
in aforesaid hydraulic system big-flow high-pressure shunting deceleration loading device, described integrated valve block is rectangular shape, and it is inner is that staggered floor arranges and the pipeline oil channel structure interconnected in length and breadth.
in aforesaid hydraulic system big-flow high-pressure shunting deceleration loading device, described first Proportional valve, the second Proportional valve, the first on-off valve, the second on-off valve, the first hydraulic control pressure regulator valve and the second hydraulic control pressure regulator valve are all installed by screw thread or are inserted into integrated valve block outside.
compared with prior art, the present invention has the advantages that volume is little, structure is simple, lightweight, the large discharge load time is short, error free, device reliability is higher, take into account small flow high pressure loading and big-flow high-pressure value-added tax function.The present invention is by the second Proportional valve, the second hydraulic control pressure regulator valve on the first Proportional valve, the first on-off valve, the first hydraulic control pressure regulator valve and the external control oil circuit II on external control oil circuit I, again together with the second on-off valve between same two oil circuits, regulate the flow in the whole device of loading and pressure, rational position between valve, Placement, simplify pipeline structure, whole device volume is diminished, and weight has also lightened.The present invention is by the close fit between valve, rationally opening and closing, whole device is taken into account and is provided with the function that small flow high pressure loads and big-flow high-pressure loads, by controlling two on-off valves, the function that this device has large discharge, high pressure loads can be made, wherein when using this scheme, only have 200ms to large discharge, high pressure load time, the large discharge load time shortens.The present invention is simultaneously by the keying between valve, when carrying out large discharge loading, control two hydraulic control pressure regulator valves owing to have employed same road external control oil circuit simultaneously, the error that two hydraulic control pressure regulator valves bring independently is controlled because this eliminating two-way external control oil circuit, also simplify the structure of oil circuit simultaneously, improve the reliability of device.
Accompanying drawing explanation
fig. 1 is structure principle chart of the present invention;
fig. 2 is the basic structure schematic diagram of integrated valve block.
being labeled as in accompanying drawing: 1-integrated valve block, 2-external control oil circuit, 3-working connection I, 4-working connection II, 5-external control oil circuit I, 6-external control oil circuit II, 7-first Proportional valve, 8-first on-off valve, 9-first hydraulic control pressure regulator valve, 10-second Proportional valve, 11-second hydraulic control pressure regulator valve, 12-second on-off valve, 13-oil circuit ram's horns I, 14-oil circuit ram's horns II.
Embodiment
below in conjunction with drawings and Examples, the present invention is further illustrated, but not as the foundation limited the present invention.
embodiment.Hydraulic system big-flow high-pressure shunting deceleration loading device, forms as depicted in figs. 1 and 2, comprises integrated valve block 1, and integrated valve block 1 outside is connected with external control oil circuit 2, working connection I3 and working connection II4, oil circuit ram's horns I13 and oil circuit ram's horns II14; Integrated valve block 1 comprises and being arranged in parallel and the external control oil circuit I5 be connected with external control oil circuit 2 and external control oil circuit II6, external control oil circuit I5 leading portion is provided with the first Proportional valve 7 and the first on-off valve 8 be connected in series, external control oil circuit I5 back segment is provided with the first hydraulic control pressure regulator valve 9, external control oil circuit II6 leading portion is provided with the second Proportional valve 10, external control oil circuit II6 back segment is provided with the second hydraulic control pressure regulator valve 11, first hydraulic control pressure regulator valve 9 and is connected by the second on-off valve 12 with the outside control mouth upstream of the second hydraulic control pressure regulator valve 11; First hydraulic control pressure regulator valve 9 is connected working connection I3 and working connection II4 respectively with the import of the second hydraulic control pressure regulator valve 11, and the first hydraulic control pressure regulator valve 9 and the outlet of the second hydraulic control pressure regulator valve 11 are connected oil circuit ram's horns I13 and oil circuit ram's horns II14 respectively.
described the first Proportional valve 7 and the first on-off valve 8 be connected in series is first Proportional valve 7 and first on-off valves 8 connected successively.Described the first Proportional valve 7 and the first on-off valve 8 be connected in series is first on-off valve 8 and first Proportional valves 7 connected successively.Described integrated valve block 1 is integral structure or the split-type structural of metallic material; Wherein split-type structural can be divided into external control integration section and load integration section, and wherein oil circuit control can connect by arranging pipeline.Described first Proportional valve 7 and the second Proportional valve 10 are leading type threeway proportional pressure-reducing valve, and wherein the pressure adjusting amount of valve is directly proportional to the electrical signal of input.Described first on-off valve 8 and the second on-off valve 12 are two-way two only solenoid valve, and the logical only direction of the first on-off valve 8 and the second on-off valve 12 is contrary, is specially: during the first on-off valve 8 power-off, fluid can two-way circulate by T-B, T-B two-way stop during energising; Second on-off valve 12 is then contrary, and during energising, fluid can two-way circulate by T-B, T-B two-way stop during power-off.Described first hydraulic control pressure regulator valve 9 and the second hydraulic control pressure regulator valve 11 are two-way plug-in mounting proportional pressure control valve, wherein the pressure adjusting of valve and the pressure of external control oil proportional.As shown in Figure 2, described integrated valve block 1 is rectangular shape, and it is inner is that staggered floor arranges and the pipeline oil channel structure interconnected in length and breadth.Described first Proportional valve 7, second Proportional valve 10, first on-off valve 8, second on-off valve 12, first hydraulic control pressure regulator valve 9 and the second hydraulic control pressure regulator valve 11 are all installed by screw thread or are inserted into integrated valve block outside.
working principle of the present invention is:
under normal circumstances, two kinds of working staties are had.The first working state: the first on-off valve 8 is energized, second on-off valve 12 power-off, external control oil circuit 2 can only carry out pressure adjustment by external control oil circuit II6 through the second proportional pressure-reducing valve 10, pressure regulator valve is entered again by the outside control mouth of the second hydraulic control pressure regulator valve 11, thus regulate the pressure of working connection II4, realize single oil circuit Loading Control.The second working state: the first on-off valve 8 power-off, second on-off valve 12 power-off, the fluid of external control oil circuit 2 is respectively by the regulating and controlling of the first Proportional valve 7 on external control oil circuit I5 and external control oil circuit II6 and the second Proportional valve 10, come to provide outer governor pressure to the first hydraulic control pressure regulator valve 9 be connected with working connection I3 and working connection II4 and the second hydraulic control pressure regulator valve 11, thus reach the object independently loaded to working connection I3 and working connection II4.
carry out large discharge loading when needs and require that two working connections load the response time in short-term, only the first on-off valve 8 on external control oil circuit I5 need be energized, the second on-off valve 12 energising be connected between the first hydraulic control valve 9 and the second hydraulic control valve 11 outside control mouth is opened and makes it oil circuit circulation, like this, the second Proportional valve 10 that the oil mass of external control oil circuit 2 can only flow through external control oil circuit II6 leading portion carries out pressure adjustment, then to the working connection I3 back segment of parallel connection, the first hydraulic control pressure regulator valve 9 that working connection II4 back segment connects respectively and the second hydraulic control pressure regulator valve 11 provide outer pressure-controlled, to shunt the synchronous object loaded to working connection I3 and working connection II4 when reaching large discharge.Control the mode of two hydraulic control pressure regulator valves like this owing to have employed an external control oil circuit simultaneously, independently controlling because this eliminating two-way external control oil circuit the error that two hydraulic control pressure regulator valves bring, simplifying oil channel structures, improve the reliability of device.
Claims (9)
1. hydraulic system big-flow high-pressure shunting deceleration loading device, it is characterized in that: comprise integrated valve block (1), integrated valve block (1) outside and external control oil circuit (2), working connection I(3), working connection II(4), oil circuit ram's horns I(13) and oil circuit ram's horns II(14) be connected, integrated valve block (1) comprise be arranged in parallel and the external control oil circuit I(5 be connected with external control oil circuit (2)) and external control oil circuit II(6), external control oil circuit I(5) leading portion is provided with the first Proportional valve (7) and the first on-off valve (8) that are connected in series, external control oil circuit I(5) back segment is provided with the first hydraulic control pressure regulator valve (9), external control oil circuit II(6) leading portion is provided with the second Proportional valve (10), external control oil circuit II(6) back segment is provided with the second hydraulic control pressure regulator valve (11), first hydraulic control pressure regulator valve (9) is connected by the second on-off valve (12) with the outside control mouth of the second hydraulic control pressure regulator valve (11), first hydraulic control pressure regulator valve (9) is connected working connection I(3 respectively with the import of the second hydraulic control pressure regulator valve (11)) and working connection II(4), the first hydraulic control pressure regulator valve (9) is connected oil circuit ram's horns I(13 respectively with the outlet of the second hydraulic control pressure regulator valve (11)) and oil circuit ram's horns II(14).
2. hydraulic system big-flow high-pressure according to claim 1 shunting deceleration loading device, is characterized in that: described in the first Proportional valve (7) of being connected in series and the first on-off valve (8), be the first Proportional valve (7) and the first on-off valve (8) that connect successively.
3. hydraulic system big-flow high-pressure according to claim 1 shunting deceleration loading device, is characterized in that: described in the first Proportional valve (7) of being connected in series and the first on-off valve (8), be the first on-off valve (8) and the first Proportional valve (7) that connect successively.
4. hydraulic system big-flow high-pressure shunting deceleration loading device according to claim 1, is characterized in that: the integral structure that described integrated valve block (1) is metallic material or split-type structural.
5. hydraulic system big-flow high-pressure shunting deceleration loading device according to claim 1, is characterized in that: described first Proportional valve (7) and the second Proportional valve (10) are leading type threeway proportional pressure-reducing valve.
6. hydraulic system big-flow high-pressure shunting deceleration loading device according to claim 1, it is characterized in that: described first on-off valve (8) and the second on-off valve (12) are two-way two only solenoid valve, the logical direction of stopping of the first on-off valve (8) and the second on-off valve (12) is contrary.
7. hydraulic system big-flow high-pressure shunting deceleration loading device according to claim 1, is characterized in that: described first hydraulic control pressure regulator valve (9) and the second hydraulic control pressure regulator valve (11) are two-way plug-in mounting proportional pressure control valve.
8. hydraulic system big-flow high-pressure shunting deceleration loading device according to claim 1, is characterized in that: described integrated valve block (1) is rectangular shape, and it is inner is that staggered floor arranges and the pipeline oil channel structure interconnected in length and breadth.
9. hydraulic system big-flow high-pressure shunting deceleration loading device according to any one of claim 1 to 8, is characterized in that: integrated valve block (1) is all installed or be inserted into described first Proportional valve (7), the second Proportional valve (10), the first on-off valve (8), the second on-off valve (12), the first hydraulic control pressure regulator valve (9) and the second hydraulic control pressure regulator valve (11) by screw thread outside.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510609964.0A CN105134679B (en) | 2015-09-23 | 2015-09-23 | High-flow high-pressure bypass loading device for hydraulic system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510609964.0A CN105134679B (en) | 2015-09-23 | 2015-09-23 | High-flow high-pressure bypass loading device for hydraulic system |
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| CN105134679A true CN105134679A (en) | 2015-12-09 |
| CN105134679B CN105134679B (en) | 2017-05-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115901277A (en) * | 2023-03-02 | 2023-04-04 | 中国航发沈阳发动机研究所 | Hydraulic loading method and device suitable for aircraft engine ground test |
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| US20040055749A1 (en) * | 2002-09-23 | 2004-03-25 | Lonnes Steven B. | Remote intervention logic valving method and apparatus |
| US20050087242A1 (en) * | 1991-08-19 | 2005-04-28 | Parker-Hannifin Corporation An Ohio Corporation | Proportional pressure control valve |
| 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 |
-
2015
- 2015-09-23 CN CN201510609964.0A patent/CN105134679B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050087242A1 (en) * | 1991-08-19 | 2005-04-28 | Parker-Hannifin Corporation An Ohio Corporation | Proportional pressure control valve |
| US20040055749A1 (en) * | 2002-09-23 | 2004-03-25 | Lonnes Steven B. | 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115901277A (en) * | 2023-03-02 | 2023-04-04 | 中国航发沈阳发动机研究所 | Hydraulic loading method and device suitable for aircraft engine ground test |
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