CN2893260Y - Integrated inserting multifunction electrohydraulic control reversing valve - Google Patents
Integrated inserting multifunction electrohydraulic control reversing valve Download PDFInfo
- Publication number
- CN2893260Y CN2893260Y CN 200620000980 CN200620000980U CN2893260Y CN 2893260 Y CN2893260 Y CN 2893260Y CN 200620000980 CN200620000980 CN 200620000980 CN 200620000980 U CN200620000980 U CN 200620000980U CN 2893260 Y CN2893260 Y CN 2893260Y
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- hydraulic control
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Abstract
The utility model relates to an integral-cartridge and multipurpose electric-hydraulic controlled reversing valve, which comprises an electromagnetic priority valve and an integral main valve, both of which is connected into one entity. The integral main valve is composed of a cartridge reversing valve core groupware, a precise filter, a cartridge liquid feeding one-way valve, a cartridge liquid return one-way valve and a valve body; the valve body is provided with a plurality of hollow cavity channels; the reversing valve core groupware, precise filter, cartridge liquid feeding one-way valve, cartridge liquid return one-way valve are integrated into one entity through the valve body to constitute the integral main valve. The utility model is an integral-cartridge and multipurpose electric-hydraulic controlled reversing valve which can control the liquid pressure and has a small fluctuating impact toward the hydraulic systematic pressure of the bracket and is provided with the small volume, simple structure and low manufacture cost, and is convenient for mounting and repairing.
Description
Technical field
The utility model relates to subsurface excavation equipment---the hydraulic support control system.
Background technique
Need an energy conversion device between hydraulic support automatical control system and the hydraulic system, this function is realized by electromagnetic priority valve.The action of the oil hydraulic cylinder that volume does not wait in the hydraulic support is controlled by the different selector valve of latus rectum in the whole main valve, and the working state of selector valve is controlled by electromagnetic priority valve.The present invention becomes one the selector valve of electromagnetic priority valve and different latus rectums, becomes integral plugged formula multifunction electric hydraulic control selector valve.
Domestic prior art has only the structure that adopts the monolithic selector valve to fit together with bolt, and volume is big, with the round section joint ring sealing, causes a plurality of fault points between every plate valve, and maintenance difficult.In addition, this structure can only be passed through the handgrip mechanically actuated, can not realize Electromagnetic Control.
The employing overall structure is abroad also arranged, and is to adopt to increase the fluctuation problem that the mode of controlling the liquid source solves controlling liquid in addition, has strengthened the complexity of hydraulic support control system; Its changeover valve core is not complete plug-in mounting structure, and inconvenience is installed and maintenance; Its selector valve working interface has increased the volume and the manufacture cost of electrofluidic control device on valve body; Its selector valve can not be realized differential function in differential circuit.
The model utility content
The purpose of this utility model just is: provide a kind of controlling liquid pressure to be subjected to the little of support hydraulic system pressure surge; Whole device volume is little, simple in structure, low cost of manufacture; The integral plugged formula multifunction electric hydraulic control selector valve that is easy for installation and maintenance.
For solving the problems of the technologies described above, technological scheme provided by the utility model is:
A kind of integral plugged formula multifunction electric hydraulic control selector valve, comprise that electromagnetic priority valve and whole main valve two large divisions form, connect as one between the two, described whole main valve comprises plug-in type reversing valve core component, accurate filter, plug-in type feed liquor one-way valve, inserting liquid return one-way valve and valve body; Described valve body is provided with several cavity passage; Described plug-in type reversing valve core component, accurate filter, plug-in type feed liquor one-way valve, inserting liquid return one-way valve become one by valve body, form whole main valve.
Main liquid entering hole communicates with feed pathway on the described valve body; This passage runs through valve body, and seal with screw plug at two ends, and the admission chamber of passage and plug-in type reversing valve core component connects, and is sealed at both ends; Simultaneously, other has a passage to communicate with the electromagnetic priority valve admission chamber through plug-in type feed liquor one-way valve by accurate filter.This passage runs through valve body, and is sealed at both ends; In addition, main liquid return hole communicates with back flow channel on the valve body; This back flow channel runs through valve body, and is sealed at both ends, communicates with the sap cavity that returns of plug-in type selector valve group respectively; The liquid return hole of described electromagnetic priority valve communicates with main liquid return hole by the inserting liquid return one-way valve.
Structure comprises the feed liquor valve pocket and returns the liquid cover that the section that valve body is relative with plug-in type reversing valve core component working interface is provided with the liquid pass hole parallel with spool.
The plug-in type reversing valve core component adopts tapering type step hole to be connected with valve body, and the valve body of once mangetic core assembly being packed into also can once be pulled down mangetic core assembly from valve body.
The inserting liquid return one-way valve adopts tapering type step hole to be connected with valve body.
The feed liquor valve pocket is connected by Cock screw with time liquid cover.
The liquid pass hole of described plug-in type reversing valve core component on spool is the sector structure.
The spool that the plug-in type reversing valve core component is is multidiameter shaft shape.
Plug-in type selector valve group back fluid spool is a U type structure.
Plug-in type feed liquor one-way valve adopts tapering type step hole to be connected with valve body.
According to the technological scheme that the utility model provides, it has following advantage with respect to prior art:
1, in integrated valve body, adopt plug-in type feed liquor one-way valve with the liquid entering hole liquid folk prescription of the liquid entering hole liquid of electromagnetic priority valve and whole main valve to separating, prevent that the liquid on the electromagnetic priority valve fluctuates with the fluctuation of system pressure; The inserting liquid return one-way valve separates the liquid return hole of electromagnetic priority valve and the liquid return hole of whole main valve, and anti-non-return liquid back pressure is excessive to the electromagnetic priority valve Effect on Performance, has stoped the liquid reverse flow telegram in reply magnetic pilot valve without secondary filter simultaneously.Do not need to increase in addition control liquid source, prevent the influence of the pressure surge of support hydraulic system controlling liquid.2, reversing valve core component, feed liquor one-way valve, time liquid one-way valve and accurate filter are integrated in the whole valve body, have reduced volume and manufacture cost, are easy for installation and maintenance.3, back fluid spool adopts " U " type structure in the plug-in type reversing valve core component, under electromagnetic priority valve control, can mandatory the feed liquor spool be opened, and in the hydraulic differential loop, realizes differential function.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and embodiments:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 be among Fig. 1 A-A to sectional view.
The figure number explanation:
1, electromagnetic priority valve 2, whole main valve 3, swivel nut 4, guide sleeve
5, feed liquor swivel nut 6, valve seat 7, valve body 8, back fluid spool
9, return liquid cover 10, spool 11, Cock screw 12, feed liquor valve pocket
13, plug-in type reversing valve core component 14, passage 15, time sap cavity W accurate filter
T plug-in type feed liquor one-way valve N inserting liquid return one-way valve C channel B channel
D channel R master liquid return hole S passage P master liquid entering hole
Embodiment
Integral plugged formula multifunction electric hydraulic control selector valve provided by the utility model, as shown in Figure 1, this device mainly is made up of electromagnetic priority valve 1 and whole main valve 2 two large divisions, connects as one with bolt between the two.Plug-in type reversing valve core component 13, accurate filter W, plug-in type feed liquor one-way valve T and inserting liquid return one-way valve N with different latus rectums and distinct interface become one by multichannel valve body 7, form whole main valve.The P mouth is that the main liquid entering hole of liquid communicates with channel C on the valve body 7.Channel C is running through valve body 7 perpendicular to the A-A profile direction, and seal with screw plug at two ends.The admission chamber of channel C and plug-in type reversing valve core component 13 connects, and seal with screw plug at two ends; Simultaneously, P mouth small amount of liquid arrives passage D by accurate filter W through plug-in type feed liquor one-way valve T.Passage D is also running through valve body 7 perpendicular to the A-A profile direction, and also seal with screw plug at two ends.The liquid of channel D communicates with the electromagnetic priority valve admission chamber respectively by passage 14.In addition, the R mouth is the main liquid return hole of liquid on the valve body 7, communicates with channel B.Channel B is running through valve body 7 perpendicular to the A-A profile direction, and seal with screw plug at two ends, and the B passage communicates with the sap cavity 15 that returns of plug-in type selector valve group 13 respectively.The liquid return hole of electromagnetic priority valve 1 communicates with the R mouth through inserting liquid return one-way valve N by passage S again.
The present invention structurally adopts integrated valve body, has apparent advantage aspect overall volume and the manufacture cost; In addition, the present invention in integrated valve body, adopt plug-in type feed liquor one-way valve T with the liquid entering hole liquid folk prescription of the liquid entering hole liquid of electromagnetic priority valve 1 and whole main valve 2 to separating, prevent that the liquid on the electromagnetic priority valve T fluctuates with the fluctuation of system pressure; Inserting liquid return one-way valve N separates the liquid return hole of electromagnetic priority valve 1 and the liquid return hole of whole main valve 2, and anti-non-return liquid back pressure is excessive to electromagnetic priority valve 1 Effect on Performance, has stoped the liquid reverse flow telegram in reply magnetic pilot valve 1 without secondary filter simultaneously.
The section that valve body 7 is relative with plug-in type reversing valve core component 13 working interfaces is provided with the liquid pass hole parallel with spool 13, can make a plurality of electromagnetic priority valves all can be close to valve body 7 end faces at relative position and fasten as one with screw.Each electromagnetic priority valve can be controlled plug-in type reversing valve core component 13 respectively like this.
Plug-in type reversing valve core component 13 adopts step hole to be connected with valve body 7, and the valve body 7 of once mangetic core assembly 20 being packed into also can once once be pulled down mangetic core assembly 13 from valve body 7.The quantity of mangetic core assembly 13 can design according to actual needs, and concrete quantity is unrestricted in this invention.
Plug-in type feed liquor one-way valve T adopts step hole to be connected with valve body 7, and the valve body 7 of once one-way valve T being packed into also can once be pulled down one-way valve T from valve body 7.
Inserting liquid return one-way valve N adopts step hole to be connected with valve body 7, and the valve body 7 of once one-way valve N being packed into also can once be pulled down one-way valve N from valve body 7.
Plug-in type reversing valve core component 13, around adopt Cock screw 11 with feed liquor valve pocket 12 with return liquid cover 9 and couple together, be used for realizing the whole loading, unloading of mangetic core assembly 13.
Plug-in type reversing valve core component 13, working interface have changed the structure of selector valve working interface on valve body 7 in the prior art on mangetic core assembly 13, reduced the volume and the manufacture cost of whole valve body.
The liquid pass hole g of plug-in type reversing valve core component 13 on spool 10 is the sector structure, and under the condition that does not reduce intensity, it is long-pending to have increased liquid level.
Plug-in type reversing valve core component 13, the diameter on spool 10 both sides is different, has strengthened the stability of spool 14 in the low-pressure opening process.
Back fluid spool 8 is a U type structure in the plug-in type selector valve group 13, under electromagnetic priority valve 1 control, the mandatory promotion of energy also keeps spool 10 to open, strengthened the reliability of spool 10 actions, because spool 10 can reliably be opened, so, can guarantee the unlatching simultaneously under the control of electromagnetic priority valve 1 of two plug-in type reversing valve core components 13, realize the Differential Control of oil hydraulic circuit.
Plug-in type feed liquor one-way valve T, feed liquor swivel nut 5 adopts interference fit to couple together with valve seat 6, is used for realizing the whole loading, unloading of one-way valve T.
Inserting liquid return one-way valve N, swivel nut 3 adopts interference fit to couple together with guide sleeve 4, is used for realizing the whole loading, unloading of one-way valve N.
Above embodiment is only for the usefulness that the utility model is described, but not to restriction of the present utility model, person skilled in the relevant technique, under the situation that does not break away from spirit and scope of the present utility model, can also make various conversion or variation, can also adopt mode such as interference fit to realize that the quantity of mangetic core assembly can design according to actual needs as: plug-in type reversing valve core component, concrete quantity is unrestricted etc. in this invention.Therefore, all technological schemes that are equal to also should belong to category of the present utility model, should be limited by each claim.
Claims (10)
1, a kind of integral plugged formula multifunction electric hydraulic control selector valve, comprise that electromagnetic priority valve (1) and whole main valve (2) two large divisions form, connect as one between the two, it is characterized in that: described whole main valve (2) comprises plug-in type reversing valve core component (13), accurate filter (W), plug-in type feed liquor one-way valve (T), inserting liquid return one-way valve (N) and valve body (7); Described valve body (7) is provided with several cavity passage; Described plug-in type reversing valve core component (13), accurate filter (W), plug-in type feed liquor one-way valve (T), inserting liquid return one-way valve (N) become one by valve body (7), form whole main valve (2).
2, integral plugged formula multifunction electric hydraulic control selector valve as claimed in claim 1 is characterized in that: described valve body (7) is gone up main liquid entering hole (P) and is communicated with passage (C); Passage (C) runs through valve body (7), and seal with screw plug at two ends, and passage (C) connects with the admission chamber (P) of plug-in type reversing valve core component (13), and is sealed at both ends; Passage (D) runs through valve body (7), and is sealed at both ends, communicates with main liquid entering hole (P), accurate filter (W) and plug-in type feed liquor one-way valve (T) respectively; Valve body (7) is gone up main liquid return hole (R) and is communicated with passage (B); (B) passage is running through valve body (7), and is sealed at both ends, communicates with the sap cavity (15) that returns of plug-in type selector valve group (13) respectively; The liquid return hole of described electromagnetic priority valve (1) communicates with main liquid return hole (R) through inserting liquid return one-way valve (N) by passage (S) again.
3, integral plugged formula multifunction electric hydraulic control selector valve as claimed in claim 1, it is characterized in that: structure comprises feed liquor valve pocket (12) and returns liquid cover (9) that the section that valve body (7) is relative with plug-in type reversing valve core component (13) working interface is provided with the liquid pass hole (g) parallel with spool (10).
4, integral plugged formula multifunction electric hydraulic control selector valve as claimed in claim 1 is characterized in that: plug-in type reversing valve core component (13) adopts tapering type step hole to be connected with valve body (7).
5, integral plugged formula multifunction electric hydraulic control selector valve as claimed in claim 1 is characterized in that: inserting liquid return one-way valve (N) adopts tapering type step hole to be connected with valve body (7).
6, integral plugged formula multifunction electric hydraulic control selector valve as claimed in claim 3 is characterized in that: feed liquor valve pocket (12) is connected by Cock screw (11) with time liquid cover (9).
7, integral plugged formula multifunction electric hydraulic control selector valve as claimed in claim 3 is characterized in that: the liquid pass hole (g) of described plug-in type reversing valve core component (13) on spool (10) is the sector structure.
8, integral plugged formula multifunction electric hydraulic control selector valve as claimed in claim 1, it is characterized in that: the spool (10) of plug-in type reversing valve core component (13) is multidiameter shaft shape.
9, integral plugged formula multifunction electric hydraulic control selector valve as claimed in claim 1 is characterized in that: plug-in type selector valve group (13) back fluid spool (8) is a U type structure.
10, integral plugged formula multifunction electric hydraulic control selector valve as claimed in claim 1 is characterized in that: plug-in type feed liquor one-way valve (T) adopts tapering type step hole to be connected with valve body (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620000980 CN2893260Y (en) | 2006-01-17 | 2006-01-17 | Integrated inserting multifunction electrohydraulic control reversing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620000980 CN2893260Y (en) | 2006-01-17 | 2006-01-17 | Integrated inserting multifunction electrohydraulic control reversing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2893260Y true CN2893260Y (en) | 2007-04-25 |
Family
ID=38061421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620000980 Expired - Lifetime CN2893260Y (en) | 2006-01-17 | 2006-01-17 | Integrated inserting multifunction electrohydraulic control reversing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2893260Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291680A (en) * | 2013-06-24 | 2013-09-11 | 山西平阳广日机电有限公司 | Ultra-thin type electro-hydraulic reversing valve |
| CN113586108A (en) * | 2021-07-19 | 2021-11-02 | 北京天地玛珂电液控制系统有限公司 | Electro-hydraulic control proportional reversing valve |
-
2006
- 2006-01-17 CN CN 200620000980 patent/CN2893260Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291680A (en) * | 2013-06-24 | 2013-09-11 | 山西平阳广日机电有限公司 | Ultra-thin type electro-hydraulic reversing valve |
| CN113586108A (en) * | 2021-07-19 | 2021-11-02 | 北京天地玛珂电液控制系统有限公司 | Electro-hydraulic control proportional reversing valve |
| CN113586108B (en) * | 2021-07-19 | 2024-03-01 | 北京天玛智控科技股份有限公司 | Electro-hydraulic control proportional reversing valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070425 |
|
| EXPY | Termination of patent right or utility model |