CN104912857A - Multi-way valve - Google Patents
Multi-way valve Download PDFInfo
- Publication number
- CN104912857A CN104912857A CN201410085595.5A CN201410085595A CN104912857A CN 104912857 A CN104912857 A CN 104912857A CN 201410085595 A CN201410085595 A CN 201410085595A CN 104912857 A CN104912857 A CN 104912857A
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- Prior art keywords
- valve
- way
- pressure
- pump
- constant difference
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention relates to a multi-way valve. The multi-way valve comprises a connecting block, and the connecting block comprises a main pressure limiting valve, a filter, a three-way pressure reduction valve, a constant difference overflow valve, an electromagnetic unloading valve and a pump; and the connecting block is connected with reversing blocks, and the reversing blocks comprise whole handle seat mechanisms, secondary pressure limiting valves, constant difference pressure reduction valves, shuttle valves and ratio electromagnets. Different three-position four-way reversing valves are controlled to achieve single movement and composite movement of a plurality of working devices; according to real-time pressure and the flow magnitude of system loads, the output pressure and the flow magnitude of the hydraulic pump are adjusted, so that the aim that the output power of the pump is completely matched with the loads is achieved; and overflow losses and heating of a hydraulic system are reduced, and therefore energy saving and emission reduction are achieved.
Description
Technical field
The invention belongs to machinery valve and manufacture and design field, particularly relate to a kind of multi-way valve.
Background technique
Maximization, intelligent, the energy-efficient important directions being the industry such as engineering machinery and hoist main frame and developing, the hydraulic element of mainframe to its supporting high-pressure high-flow propose requirements at the higher level, multi-way valve is as the core parts of host hydraulic system, and its performance and control mode directly affect the performance of complete machine.But the hydraulic element of these main frame key component-hydraulic systems, seriously disconnect as the development such as multi-way valve, oil hydraulic pump and main frame develop, especially high pressure, large discharge, the contour performance hydraulic element of comprehensive function, its technology also needs further raising.
At present, the developing direction of big machinery hydraulic element and system is: (1) is to high pressure, large discharge development: specific power is high, makes complete machine compacter; (2) technology represent handling, the energy saving of advanced person is adopted: if (3) such as load pressure compensation, load-sensitive, positive and negative flow control techniques are in conjunction with microelectronic and Computer Control Technology, as electric-hydraulic proportion, electric liquid load compensation and electric liquid load-sensitive technology and the double spool control technique that independently controls based on load port.
In order to further increase control accuracy and the energy saving of multi-way valve, and make the automation of main frame and intellectuality higher, each main frame and hydraulic element study and production field drops into strength one after another to multi-way valve, especially develop high performance multi-way valve product, how improving multi-way valve performance is problem in urgent need to solve.
Summary of the invention
For the present situation of above-mentioned prior art, the object of the present invention is to provide that a kind of manufacture cost is lower, compact structure, multiple control modes and there is the multi-way valve of the market competitiveness.
For achieving the above object, the present invention's technological scheme used is: a kind of multi-way valve, include contiguous block, described contiguous block includes main pressure-limit valve, filter, three-way pressure reducing valve, constant difference overflow valve, unloading electromagnetic valve and pump, described contiguous block is connected with commutation block, and this commutation block includes integral handle seat mechanism, secondary pressure-limit valve, Fixed differential reducing valve, shuttle valve and proportion electro-magnet.
Further, described filter is arranged between main pressure-limit valve and three-way pressure reducing valve, this three-way pressure reducing valve connects constant difference overflow valve, this constant difference overflow valve connects pump, constant difference overflow valve can come delivery pressure and the uninterrupted of regulator solution press pump according to the real-time pressure of system load and uninterrupted, to realize the coupling completely of pump power output load.
Further, described filter is arranged between main pressure-limit valve and threeway pressure-limit valve, this threeway pressure-limit valve connects constant difference overflow valve, this constant difference overflow valve connects pump, in the action simultaneously of many group selector valves and load is different, it is only relevant with the valve core opening area of selector valve with flow that Fixed differential reducing valve can realize pressure, not by the impact of the fluctuation of load.
Further, between described constant difference overflow valve and pump, unloading electromagnetic valve is installed.
Further, described integral handle seat mechanism includes handle, spring and potentiometer.
Further, also tailgate is installed after described commutation block.
Further, described contiguous block is also provided with safety valve, be used for system principal pressure excessive when off-load.
Compared with prior art, the invention has the advantages that: by controlling different three position four-way directional control valves, multiple equipment single movement and composite move can be realized, delivery pressure and the uninterrupted of regulator solution press pump can be come according to the real-time pressure of system load and uninterrupted, to realize the coupling completely of pump power output also load, reduce the spill losses of hydraulic system and heating, thus realize energy-conservation with reduction of discharging.
accompanying drawing explanation
Fig. 1 is invention structural representation.
Specific embodiment
As shown in Figure 1, a kind of multi-way valve, include contiguous block 1, contiguous block 1 includes main pressure-limit valve 16, filter 11, three-way pressure reducing valve 12, constant difference overflow valve 13, unloading electromagnetic valve 14 and pump 15, contiguous block 1 is connected with commutation block 2, commutation block 2 includes integral handle seat mechanism 21, secondary pressure-limit valve 22, Fixed differential reducing valve 25, shuttle valve 24 and proportion electro-magnet 23, described filter 11 is arranged between main pressure-limit valve 16 and three-way pressure reducing valve 12, this three-way pressure reducing valve 12 connects constant difference overflow valve 13, this constant difference overflow valve 13 connects pump 15, between constant difference overflow valve and pump, unloading electromagnetic valve is installed, also tailgate is installed after commutation block, contiguous block is also provided with safety valve, by controlling different three position four-way directional control valves, multiple equipment single movement and composite move can be realized, delivery pressure and the uninterrupted of regulator solution press pump can be come according to the real-time pressure of system load and uninterrupted, to realize the coupling completely of pump power output also load, reduce spill losses and the heating of hydraulic system, thus realize energy-conservation with reduction of discharging.Reversing valve plate number can increase according to need of work or reduce installation group number.
Contiguous block is equipped with constant difference overflow valve, delivery pressure and the uninterrupted of regulator solution press pump can be come according to the real-time pressure of system load and uninterrupted, to realize the coupling completely of pump power output also load, contiguous block is equipped with safety valve, be used for the off-load when system principal pressure is excessive, commutation block is equipped with shuttle valve, be used for the constant difference overflow valve on the given poor overflow of transmission of maximum load pressure and safety valve block, realize the control of pump to required pressure and flow, commutation block is equipped with Fixed differential reducing valve, in the action simultaneously of many group selector valves and load is different, it is only relevant with the valve core opening area of selector valve with flow that Fixed differential reducing valve can realize pressure, not by the impact of the fluctuation of load, mounting filter on contiguous block, be used for meeting the requirement of guide's Decompression Controlling to guide's oil cleanliness, contiguous block installs reduction valve, be used for meeting the requirement of guide's Decompression Controlling to guide oil pressure, selector valve can select hand-operated direction valve according to actual needs, solenoid directional control valve, guide liquid control change valve, even can select direct-acting type highi degree of accuracy proportional reversing valve, the present invention is a kind of load-sensitive proportional multi-way valve, be applicable to the main frame industry market needing high-end load sensing multi-way valve.
Above-described embodiment is to explanation of the present invention, is not limitation of the invention, anyly all belongs to protection scope of the present invention to the scheme after simple transformation of the present invention.
Claims (6)
1. a multi-way valve, include contiguous block, it is characterized in that, described contiguous block includes main pressure-limit valve, filter, three-way pressure reducing valve, constant difference overflow valve, unloading electromagnetic valve and pump, described contiguous block is connected with commutation block, and this commutation block includes integral handle seat mechanism, secondary pressure-limit valve, Fixed differential reducing valve, shuttle valve and proportion electro-magnet.
2. a kind of multi-way valve according to claim 1, is characterized in that, described filter is arranged between main pressure-limit valve and three-way pressure reducing valve, and this three-way pressure reducing valve connects constant difference overflow valve, and this constant difference overflow valve connects pump.
3. a kind of multi-way valve according to claim 2, is characterized in that, is provided with unloading electromagnetic valve between described constant difference overflow valve and pump.
4. a kind of multi-way valve according to claim 1, is characterized in that, described integral handle seat mechanism includes handle, spring and potentiometer.
5. a kind of multi-way valve according to claim 1, is characterized in that, is also provided with tailgate after described commutation block.
6. a kind of multi-way valve according to claim 1, is characterized in that, described contiguous block is also provided with safety valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410085595.5A CN104912857A (en) | 2014-03-11 | 2014-03-11 | Multi-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410085595.5A CN104912857A (en) | 2014-03-11 | 2014-03-11 | Multi-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104912857A true CN104912857A (en) | 2015-09-16 |
Family
ID=54082217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410085595.5A Pending CN104912857A (en) | 2014-03-11 | 2014-03-11 | Multi-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104912857A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050782A (en) * | 2016-08-14 | 2016-10-26 | 宁波市博尔法液压有限公司 | Multi-way reversing valve capable of remotely switching working pressure |
| CN110714957A (en) * | 2019-08-26 | 2020-01-21 | 宁波江北宇洲液压设备厂 | High-integration pilot multi-way valve bank and crane |
| CN114294279A (en) * | 2021-12-14 | 2022-04-08 | 北京天玛智控科技股份有限公司 | Integrated multi-way valve |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4276811A (en) * | 1972-11-08 | 1981-07-07 | Control Concepts, Inc. | Closed center programmed valve system with load sense |
| US5348049A (en) * | 1992-04-29 | 1994-09-20 | Kayaba Industry Co., Ltd. | Input apparatus |
| US20090266070A1 (en) * | 2008-04-25 | 2009-10-29 | Pack Andreas S | Post-pressure compensated hydraulic control valve with load sense pressure limiting |
| CN202108803U (en) * | 2011-06-22 | 2012-01-11 | 徐州徐工随车起重机有限公司 | Multi-way reversing valve for lorry-mounted crane |
| CN202251178U (en) * | 2011-08-29 | 2012-05-30 | 浙江海宏液压科技股份有限公司 | Energy-saving forklift multi-way valve |
| CN202251194U (en) * | 2011-09-29 | 2012-05-30 | 卢宇 | Proportional multi-way valve with reversing load feedback function |
| CN103148036A (en) * | 2013-03-19 | 2013-06-12 | 临海市乐建液压件有限公司 | Hydraulic valve |
-
2014
- 2014-03-11 CN CN201410085595.5A patent/CN104912857A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4276811A (en) * | 1972-11-08 | 1981-07-07 | Control Concepts, Inc. | Closed center programmed valve system with load sense |
| US5348049A (en) * | 1992-04-29 | 1994-09-20 | Kayaba Industry Co., Ltd. | Input apparatus |
| US20090266070A1 (en) * | 2008-04-25 | 2009-10-29 | Pack Andreas S | Post-pressure compensated hydraulic control valve with load sense pressure limiting |
| CN202108803U (en) * | 2011-06-22 | 2012-01-11 | 徐州徐工随车起重机有限公司 | Multi-way reversing valve for lorry-mounted crane |
| CN202251178U (en) * | 2011-08-29 | 2012-05-30 | 浙江海宏液压科技股份有限公司 | Energy-saving forklift multi-way valve |
| CN202251194U (en) * | 2011-09-29 | 2012-05-30 | 卢宇 | Proportional multi-way valve with reversing load feedback function |
| CN103148036A (en) * | 2013-03-19 | 2013-06-12 | 临海市乐建液压件有限公司 | Hydraulic valve |
Non-Patent Citations (3)
| Title |
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| 成大先: "《机械设计手册（第五版）：单行本 液压控制》", 31 January 2010, 化学工业出版社 * |
| 毛卫平: "《液压阀》", 30 April 2009, 化学工业出版社 * |
| 黄志坚等: "《电液伺服与比例控制装置使用与维修》", 31 May 2009, 中国电力出版社 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106050782A (en) * | 2016-08-14 | 2016-10-26 | 宁波市博尔法液压有限公司 | Multi-way reversing valve capable of remotely switching working pressure |
| CN106050782B (en) * | 2016-08-14 | 2017-09-29 | 宁波市博尔法液压有限公司 | The multiple directional control valve of the long-range switch operating pressure of energy |
| CN110714957A (en) * | 2019-08-26 | 2020-01-21 | 宁波江北宇洲液压设备厂 | High-integration pilot multi-way valve bank and crane |
| CN114294279A (en) * | 2021-12-14 | 2022-04-08 | 北京天玛智控科技股份有限公司 | Integrated multi-way valve |
| CN114294279B (en) * | 2021-12-14 | 2024-08-06 | 北京天玛智控科技股份有限公司 | Integrated multi-way valve |
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| PB01 | Publication | ||
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Application publication date: 20150916 |