CN202545395U - Pilot electrohydraulic proportional overflow valve - Google Patents
Pilot electrohydraulic proportional overflow valve Download PDFInfo
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- CN202545395U CN202545395U CN2012201114881U CN201220111488U CN202545395U CN 202545395 U CN202545395 U CN 202545395U CN 2012201114881 U CN2012201114881 U CN 2012201114881U CN 201220111488 U CN201220111488 U CN 201220111488U CN 202545395 U CN202545395 U CN 202545395U
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- valve
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- main valve
- pilot
- plug
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Abstract
The utility model relates to a pilot electrohydraulic proportional overflow valve which is particularly applicable to pilot electrohydraulic proportional overflow valve equipment of a large-flow cartridge valve in a proportional pressure pressure circuit of a hydraulic system. The pilot electrohydraulic proportional overflow valve is characterized in that a main valve plug is arranged in a main valve bush; one end of the main valve bush is communicated with an oil inlet; the side surface of the main valve bush is provided with an oil line which is communicated with an oil outlet; the other end of the main valve bush is provided with a plum mat; a main spring is arranged between the main valve plug and the plum mat; one end of the plum mat is provided with a plug; one end of a pilot valve seat is provided with a cone valve plug; a return spring is arranged between the cone valve plug and the pilot valve seat; one end of the cone valve plug is provided with a transmission spring which is connected with a proportional electromagnet; a cavity at the cone valve plug is communicated with an independent return opening; and the side face of the pilot valve body is provided with the proportional electromagnet which is provided with an amplifier. The pilot electrohydraulic proportional overflow valve has the effects of being compact and simple in structure, stable in system pressure, steady and reliable in work, small in hysteresis and high in repeated running accuracy, being capable of adjusting proportional pressure, and being widely applied to the pilot electrohydraulic proportional overflow valve equipment in the circuit of the hydraulic system.
Description
Technical field
The utility model relates to a kind of leading type electricity liquid ratio relief valve, is specially adapted to the leading type electricity liquid ratio relief valve equipment that the hydraulic system ratio is regulated big flow cartridge valve in the pressure circuit.
Background technique
At present, adopt proportional pressure control valve to receive effect on structure in the existing technology loop, processing is difficulty relatively; Up-to-standard rate is lower, and difficult adjusting when using, and unsettled situation can appear in system pressure; The rated flow of existing proportional pressure control valve or too little or too big all is inappropriate for the requirement of system as the pilot valve of cartridge valve, and rated flow is too little can be produced very big quilt and presses; The too big adjusting pressure of rated flow is stable inadequately, and the external form volume is bigger.
Summary of the invention
The purpose of the utility model; Provide a kind of leading type electricity liquid ratio relief valve; It is to adopt to regulate pressure leading type electricity liquid ratio relief valve in the big flow cartridge valve hydraulic circuit; Constitute electricity liquid ratio relief valve by main valve body, guide's valve body, proportion electro-magnet, amplifier and independent return opening, the purpose of the leading type electricity liquid ratio relief valve in the big flow cartridge valve hydraulic circuit of realization stable regulation pressure.
The utility model leading type electricity liquid ratio relief valve takes following technological scheme to realize: it is to be made up of main valve body, guide's valve body, proportion electro-magnet, main valve housing, main valve plug, poppet valve core, guide's valve seat, main spring, Returnning spring and power transmission spring, and the side of main valve body is provided with filler opening and oil outlet, and the side axial of main valve body is provided with main valve housing; Main valve plug is set in the main valve housing, and main valve housing one end is communicated with filler opening, and the main valve housing side is provided with oil circuit and is communicated with oil outlet; The main valve housing the other end is provided with the flower pad; Between main valve plug and the flower pad main spring is set, flower pad one end is provided with screw plug, and the pilot valve axon is to guide's valve seat is set; Guide's valve seat one end is provided with poppet valve core; Between poppet valve core and the guide's valve seat Returnning spring is set, poppet valve core one end is provided with the power transmission spring, and the power transmission spring is connected with proportion electro-magnet; Guide's valve seat side is provided with oil circuit and is communicated with cavity volume between main valve housing and the screw plug; Poppet valve core place cavity volume is communicated with independent return opening, and the pilot valve body side surface is provided with proportion electro-magnet, and amplifier is set on the proportion electro-magnet.When proportion electro-magnet did not have electrical signal, pressure oil was guided to pressure oil through radial hole the main spring cavity volume of main valve plug through the radial hole of filler opening entering main valve plug; Pressure oil is through getting into guide's valve seat to cavity volume between main valve housing and the screw plug simultaneously; Affact on the poppet valve core through guide's valve seat, this moment, proportion electro-magnet did not have ouput force, and pressure oil promotes poppet valve core and opens; Pressure oil gets into independent return opening through the cavity volume of poppet valve core, and system can not build-up pressure; During the certain electrical signal of given proportion electro-magnet, proportion electro-magnet just produces certain thrust, and pressure oil just need overcome the thrust of power transmission spring and proportion electro-magnet, realizes that ratio is regulated pressure in the hydraulic circuit.
The effect of the utility model leading type electricity liquid ratio relief valve is that compact structure is simple; System pressure is stable; Regulate ratio pressure, processing cost is low, working stability is reliable, and the ring that stagnates is little; The precision that reruns height is widely used in the hydraulic system ratio and regulates leading type electricity liquid ratio relief valve equipment in the pressure circuit.
Description of drawings
The utility model leading type electricity liquid ratio relief valve will combine accompanying drawing to describe in further detail.
Fig. 1 is the structure sectional view of the utility model leading type electricity liquid ratio relief valve.
1-filler opening, 2-oil outlet, 3-main valve housing, 4-main valve plug, 5-main spring 6-flower pad 7-screw plug 8-main valve body 9-guide valve body 10-guide valve seat 11-poppet valve core 12-Returnning spring 13-power transmission spring 14-proportion electro-magnet 15-amplifier 16-separately return openings.
Embodiment
With reference to Fig. 1, the utility model leading type electricity liquid ratio relief valve: it is to be made up of main valve body 8, guide's valve body 9, proportion electro-magnet 14, main valve housing 3, main valve plug 4, poppet valve core 11, guide's valve seat 10, main spring 5, Returnning spring 12 and power transmission spring 13, and the side of main valve body 8 is provided with filler opening 1 and oil outlet 2; The side axial of main valve body 8 is provided with main valve housing 3, and main valve plug 4 is set in the main valve housing 3, and main valve housing 3 one ends are communicated with filler opening 1; Main valve housing 3 sides are provided with oil circuit and are communicated with oil outlet 2, and main valve housing 3 the other ends are provided with flower pad 6, between main valve plug 4 and the flower pad 6 main spring 5 are set; Flower pad 6 one ends are provided with screw plug 7; Guide's valve body 9 axially is provided with guide's valve seat 10, and guide's valve seat 10 1 ends are provided with poppet valve core 11, between poppet valve core 11 and the guide's valve seat 10 Returnning spring 12 is set; Poppet valve core 11 1 ends are provided with power transmission spring 13; Power transmission spring 13 is connected with proportion electro-magnet 14, and guide's valve seat 10 sides are provided with oil circuit and are communicated with cavity volume between main valve housing 3 and the screw plug 7, and poppet valve core 11 place's cavity volumes are communicated with return opening 16 separately; Guide's valve body 9 sides are provided with proportion electro-magnet 14, and amplifier 15 is set on the proportion electro-magnet 14.
The embodiment of the utility model pilot proportional relief valve: it is to be made up of main valve body 8, guide's valve body 9, proportion electro-magnet 14, main valve housing 3, main valve plug 4, poppet valve core 11, guide's valve seat 10, main spring 5, Returnning spring 12 and power transmission spring 13; When proportion electro-magnet 14 does not have electrical signal; Pressure oil gets into the radial hole of main valve plug 4 through filler opening 1; Through radial hole pressure oil is guided to main spring 5 cavity volumes of main valve plug 4, simultaneously pressure oil through between main valve housing 3 and the screw plug 7 to cavity volume entering guide valve seat 10, affact on the poppet valve core 11 through guide's valve seat 10; This moment, proportion electro-magnet 14 did not have ouput force; Pressure oil promotes poppet valve core 11 and opens, and pressure oil gets into independent return opening 16 through the cavity volume of poppet valve core 11, and system can not build-up pressure; When the certain electrical signal of given proportion electro-magnet 14, proportion electro-magnet 14 just produces certain thrust, and pressure oil just need overcome the thrust of power transmission spring 13 and proportion electro-magnet 14, realizes that ratio is regulated pressure in the hydraulic circuit.
Claims (1)
1. leading type electricity liquid ratio relief valve; It is to be made up of main valve body (8), guide's valve body (9), proportion electro-magnet (14), main valve housing (3), main valve plug (4), poppet valve core (11), guide's valve seat (10), main spring (5), Returnning spring (12) and power transmission spring (13); The side that it is characterized in that main valve body (8) is provided with filler opening (1) and oil outlet (2), and the side axial of main valve body (8) is provided with main valve housing (3), and main valve plug (4) is set in the main valve housing (3); Main valve housing (3) one ends are communicated with filler opening (1); Main valve housing (3) side is provided with oil circuit and is communicated with oil outlet (2), and main valve housing (3) the other end is provided with flower pad (6), between main valve plug (4) and the flower pad (6) main spring (5) is set; Flower pad (6) one ends are provided with screw plug (7); Guide's valve body (9) axially is provided with guide's valve seat (10), and guide's valve seat (10) one ends are provided with poppet valve core (11), between poppet valve core (11) and the guide's valve seat (10) Returnning spring (12) is set; Poppet valve core (11) one ends are provided with power transmission spring (13); Power transmission spring (13) is connected with proportion electro-magnet (14), and guide's valve seat (10) side is provided with oil circuit and is communicated with cavity volume between main valve housing (3) and the screw plug (7), and poppet valve core (11) is located cavity volume and is communicated with return opening (16) separately; Guide's valve body (9) side is provided with proportion electro-magnet (14), and amplifier (15) is set on the proportion electro-magnet (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201114881U CN202545395U (en) | 2012-03-23 | 2012-03-23 | Pilot electrohydraulic proportional overflow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201114881U CN202545395U (en) | 2012-03-23 | 2012-03-23 | Pilot electrohydraulic proportional overflow valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202545395U true CN202545395U (en) | 2012-11-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201114881U Expired - Lifetime CN202545395U (en) | 2012-03-23 | 2012-03-23 | Pilot electrohydraulic proportional overflow valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202545395U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100589A (en) * | 2014-07-04 | 2014-10-15 | 宁波雪隆王液压科技有限公司 | Fast multi-direction multifunctional liquid control valve |
| CN104728506A (en) * | 2015-03-24 | 2015-06-24 | 上海大学 | Digital pilot-operated cartridge overflow valve |
| CN105090600A (en) * | 2015-09-11 | 2015-11-25 | 福州大学 | Novel electric-hydraulic proportional overflow valve |
| CN105673602A (en) * | 2014-11-21 | 2016-06-15 | 大连华东液压件有限公司 | Proportional overflow valve |
| CN108561357A (en) * | 2018-01-20 | 2018-09-21 | 邵立坤 | A kind of plug-in proportional pressure control valve |
-
2012
- 2012-03-23 CN CN2012201114881U patent/CN202545395U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100589A (en) * | 2014-07-04 | 2014-10-15 | 宁波雪隆王液压科技有限公司 | Fast multi-direction multifunctional liquid control valve |
| CN104100589B (en) * | 2014-07-04 | 2016-06-08 | 宁波江东晟创工业产品设计有限公司 | A kind of multidirectional and multifunctional pilot operated valve device fast |
| CN105673602A (en) * | 2014-11-21 | 2016-06-15 | 大连华东液压件有限公司 | Proportional overflow valve |
| CN105673602B (en) * | 2014-11-21 | 2018-11-06 | 大连华东液压件有限公司 | Proportional pressure control valve |
| CN104728506A (en) * | 2015-03-24 | 2015-06-24 | 上海大学 | Digital pilot-operated cartridge overflow valve |
| CN105090600A (en) * | 2015-09-11 | 2015-11-25 | 福州大学 | Novel electric-hydraulic proportional overflow valve |
| CN105090600B (en) * | 2015-09-11 | 2017-10-20 | 福州大学 | A kind of electricity liquid ratio relief valve |
| CN108561357A (en) * | 2018-01-20 | 2018-09-21 | 邵立坤 | A kind of plug-in proportional pressure control valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 272025, triumph Road, 66 hi tech Zone, Shandong, Jining Patentee after: Shandong Taifeng intelligent control Limited by Share Ltd Address before: 272025, triumph Road, 66 hi tech Zone, Shandong, Jining Patentee before: Shandong Taifeng Hydraulic Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121121 |