CN204921517U - One -way relief valve of biliquid accuse - Google Patents
One -way relief valve of biliquid accuse Download PDFInfo
- Publication number
- CN204921517U CN204921517U CN201520616977.6U CN201520616977U CN204921517U CN 204921517 U CN204921517 U CN 204921517U CN 201520616977 U CN201520616977 U CN 201520616977U CN 204921517 U CN204921517 U CN 204921517U
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- China
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- import
- core assembly
- outlet
- mangetic core
- discharge orifice
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Abstract
The utility model discloses an one -way relief valve of biliquid accuse, including valve body, first case subassembly, second case subassembly and control piston, be equipped with first import, first export, second import and second export on the valve body, control piston's both ends respectively with first case subassembly, the cooperation of second case subassembly are in order to control respectively the break -make of break -make, second import and the second export of first import and first export still includes first orifice and second orifice, first import is passed through first orifice with first export communicates with each other, the second import is passed through the second orifice with the second export communicates with each other. The technical scheme of the utility model work is steady, it is little to strike, low cost, simple structure, convenient and practical.
Description
Technical field
The utility model belongs to mechanical design field, relates to a kind of one-way valve, particularly relates to the unidirectional Decompression valves of a kind of double hydraulic control.
Background technique
Existing Pilot operated check valve only has to be opened and complete closing function completely, can not be applicable to some special operation condition requirement.
As shown in fig. 1, existing Pilot operated check valve is mostly by valve body, valve seat, spool, control piston, spring, and end cap forms.Hydraulic oil allows from A to A1 and B to B1 free-flow, and the flowing of reverse flow and A1 to A and B1 to B is controlled by control piston.Only have when control piston is moved to the left, the spool promoting the left side is moved to the left and departs from the valve seat on the left side, and hydraulic oil just can flow from A1 to A; When control piston moves right, the spool promoting the right moves right and to depart from the valve seat on the right, and hydraulic oil just can flow from B1 to B.Except both of these case, A1 to A and B1 to B can not flow, and No leakage.
But when some is special, such as, the propulsion control system of the propulsion motor of rock drilling machine.The propulsion motor of rock drilling machine is by advancing valve fast and advancing at a slow speed valve to control respectively, and owing to letting out in oil hydraulic motor existence, oil hydraulic motor all needs the safety brake of break ability, needs the earth pressure release in braking line when break works.Because Pilot operated check valve has reverse cutoff function, and No leakage, so the pressure in braking line just cannot be discharged.Meanwhile, the valve port of Pilot operated check valve opens and closes suddenly and can produce shake and hydraulic shock.
Model utility content
In view of this, the utility model provides the unidirectional Decompression valves of a kind of double hydraulic control.
For achieving the above object, concrete technological scheme is as follows:
The unidirectional Decompression valves of a kind of double hydraulic control, comprise valve body, first mangetic core assembly, second mangetic core assembly and control piston, described valve body is provided with the first import and the first outlet that cooperatively interact, and the second import cooperatively interacted and second exports, described first mangetic core assembly is located between described first import and the first outlet, described second mangetic core assembly is located between described second import and the second outlet, the two ends of described control piston respectively with described first mangetic core assembly, second mangetic core assembly coordinates, to control the break-make of described first import and the first outlet respectively, the break-make of the second import and the second outlet, also comprise first segment discharge orifice and second section discharge orifice, described first segment discharge orifice is located between described first import and the first outlet, described second section discharge orifice is located between described second import and the second outlet, described first import is exported by described first segment discharge orifice and described first and communicates, described second import is exported by described second section discharge orifice and described second and communicates.
Preferably, described first mangetic core assembly and the second mangetic core assembly comprise spool and valve seat, and what described spool slided is located on described valve seat, and one end of described spool coordinates with described control piston.
Preferably, described first mangetic core assembly and the second mangetic core assembly also comprise end cap and elastic element, and the other end of described spool is connected with described end cap by elastic element, and described end cap is connected with described valve seat.
Preferably, described elastic element is spring.
Preferably, described first import and the second import are positioned on the end face of described valve body one end.
Preferably, described first outlet and the second outlet are positioned on the end face of the described valve body the other end.
Preferably, one end of described valve body is provided with the control cavity communicated with the first import and the second import, and described control piston is located in described control cavity.
Preferably, the valve seat of described first mangetic core assembly and the second mangetic core assembly is provided with through hole, and described control cavity exports to export with second by described through hole and described first and is connected.
Preferably, described first segment discharge orifice and second section discharge orifice be located at described control cavity and the first outlet respectively, between described control cavity and the second outlet, described control cavity respectively by first segment discharge orifice and first export communicate, described second section discharge orifice and second exports and communicates.
Relative to prior art, the technical solution of the utility model meets the propulsion motor of rock drilling machine by advancing valve fast and advancing at a slow speed valve to control respectively, hydraulic brake needs the requirement of earth pressure release, simultaneously stable working, impact little, with low cost, structure is simple, convenient and practical.
Accompanying drawing explanation
The accompanying drawing forming a part of the present utility model is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is structural representation and the hydraulic pressure graphical diagram of traditional Pilot operated check valve;
Fig. 2 is structural representation and the hydraulic pressure graphical diagram of the utility model embodiment;
Fig. 3 is the structural representation of the propulsion motor control system of the utility model embodiment application.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technological scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
It should be noted that, when not conflicting, the embodiment in the utility model and the feature in embodiment can combine mutually.
Below with reference to accompanying drawing, concrete explaination is done to embodiment of the present utility model.
The unidirectional Decompression valves of a kind of double hydraulic control of embodiment of the present utility model as shown in Figure 2, is applicable in propulsion motor control system, comprises valve body 1, first mangetic core assembly, the second mangetic core assembly and control piston 2.
Valve body 1 is provided with the first import A and the first outlet A1 cooperatively interacted, and the second import B cooperatively interacted and second outlet B1.First mangetic core assembly is located between the first import A and first outlet A1, second mangetic core assembly is located between the second import B and second outlet B1, the two ends of control piston 2 coordinate with the first mangetic core assembly, the second mangetic core assembly respectively, to control the break-make of the first import A and first outlet A1, the break-make of the second import B and second outlet B1 respectively.
Also comprise first segment discharge orifice 3 and second section discharge orifice 4, first segment discharge orifice 3 is located between the first import A and first outlet A1, second section discharge orifice 4 is located between the second import B and second outlet B1, first import A exports A1 by first segment discharge orifice 3 and first and communicates, and the second import B exports B1 by second section discharge orifice 4 and second and communicates.
First mangetic core assembly and the second mangetic core assembly comprise spool 5, valve seat 6, end cap 7 and elastic element 8.What spool 5 slided is located on valve seat 6, and one end of spool 5 coordinates with control piston 2, and the other end of spool 5 is connected with end cap 7 by elastic element 8, and end cap 7 is connected with valve seat 6.Preferred elastomeric element 8 is spring.
In embodiment of the present utility model, hydraulic oil allows from A to A1 and B to B1 free-flow, and the flowing of reverse flow and A1 to A and B1 to B is controlled by control piston 2.When control piston 2 is moved to the left, the spool 5 promoting the left side is moved to the left and departs from the valve seat 6 on the left side, and hydraulic oil can flow from A1 to A; When control piston 2 moves right, the spool 5 promoting the right moves right and to depart from the valve seat 6 on the right, and hydraulic oil can flow from B1 to B.
Except both of these case, the band restricted flow that throttle orifice (3,4) realizes A1 to A and B1 to B can also be passed through.Although throttle orifice (3,4) has a small amount of leakage, can ignore, influential system does not normally work.
As shown in Figure 3, in embodiment of the present utility model, a kind of propulsion motor control system, comprises propulsion motor 9, advances valve 10 fast, advances valve 11 and the unidirectional Decompression valves 12 of double hydraulic control as above at a slow speed.Quick propelling valve 10 is connected with propulsion motor 9, advances at a slow speed valve 11 to be connected with propulsion motor 9 by the unidirectional Decompression valves 12 of double hydraulic control.As shown in Figure 3, worked by the quick propelling valve 10 on the left side and the oil hydraulic motor (propulsion motor 9) of this both direction valve co-controlling of valve 11 band brake that advances at a slow speed on the right, employ a unidirectional Decompression valves 12 of double hydraulic control, the control of left and right both direction valve is not interfere with each other, and (throttle orifice place has a small amount of leakage, but can ignore, influential system does not normally work).
Embodiment of the present utility model adds the function of pressure release on the basis of existing Pilot operated check valve, meets the requirement of hydraulic brake earth pressure release, turn reduces compression shock, stable working, reduce cost of production, and structure is simple, convenient and practical.
Be described in detail specific embodiment of the utility model above, but it is just as example, the utility model is not restricted to specific embodiment described above.To those skilled in the art, any equivalent modifications that the utility model is carried out and substituting also all among category of the present utility model.Therefore, not departing from the equalization conversion and amendment done under spirit and scope of the present utility model, all should be encompassed in scope of the present utility model.
Claims (9)
1. the unidirectional Decompression valves of double hydraulic control, comprise valve body, first mangetic core assembly, second mangetic core assembly and control piston, described valve body is provided with the first import and the first outlet that cooperatively interact, and the second import cooperatively interacted and second exports, described first mangetic core assembly is located between described first import and the first outlet, described second mangetic core assembly is located between described second import and the second outlet, the two ends of described control piston respectively with described first mangetic core assembly, second mangetic core assembly coordinates, to control the break-make of described first import and the first outlet respectively, the break-make of the second import and the second outlet, it is characterized in that, also comprise first segment discharge orifice and second section discharge orifice, described first segment discharge orifice is located between described first import and the first outlet, described second section discharge orifice is located between described second import and the second outlet, described first import is exported by described first segment discharge orifice and described first and communicates, described second import is exported by described second section discharge orifice and described second and communicates.
2. the unidirectional Decompression valves of double hydraulic control as claimed in claim 1, it is characterized in that, described first mangetic core assembly and the second mangetic core assembly comprise spool and valve seat, and what described spool slided is located on described valve seat, and one end of described spool coordinates with described control piston.
3. the unidirectional Decompression valves of double hydraulic control as claimed in claim 2, it is characterized in that, described first mangetic core assembly and the second mangetic core assembly also comprise end cap and elastic element, and the other end of described spool is connected with described end cap by elastic element, and described end cap is connected with described valve seat.
4. the unidirectional Decompression valves of double hydraulic control as claimed in claim 3, it is characterized in that, described elastic element is spring.
5. the unidirectional Decompression valves of double hydraulic control as claimed in claim 4, it is characterized in that, described first import and the second import are positioned on the end face of described valve body one end.
6. the unidirectional Decompression valves of double hydraulic control as claimed in claim 5, is characterized in that, described first outlet and the second outlet are positioned on the end face of the described valve body the other end.
7. the unidirectional Decompression valves of double hydraulic control as claimed in claim 6, it is characterized in that, one end of described valve body is provided with the control cavity communicated with the first import and the second import, and described control piston is located in described control cavity.
8. the unidirectional Decompression valves of double hydraulic control as claimed in claim 7, it is characterized in that, the valve seat of described first mangetic core assembly and the second mangetic core assembly is provided with through hole, and described control cavity exports to export with second by described through hole and described first and is connected.
9. the unidirectional Decompression valves of double hydraulic control as claimed in claim 8, it is characterized in that, described first segment discharge orifice and second section discharge orifice be located at described control cavity and the first outlet respectively, between described control cavity and the second outlet, described control cavity respectively by first segment discharge orifice and first export communicate, described second section discharge orifice and second exports and communicates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520616977.6U CN204921517U (en) | 2015-08-14 | 2015-08-14 | One -way relief valve of biliquid accuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520616977.6U CN204921517U (en) | 2015-08-14 | 2015-08-14 | One -way relief valve of biliquid accuse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204921517U true CN204921517U (en) | 2015-12-30 |
Family
ID=54970650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520616977.6U Withdrawn - After Issue CN204921517U (en) | 2015-08-14 | 2015-08-14 | One -way relief valve of biliquid accuse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204921517U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114385A (en) * | 2015-08-14 | 2015-12-02 | 马鞍山唐拓凿岩机械有限公司 | Double-hydraulic-control one-way pressure release valve |
-
2015
- 2015-08-14 CN CN201520616977.6U patent/CN204921517U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114385A (en) * | 2015-08-14 | 2015-12-02 | 马鞍山唐拓凿岩机械有限公司 | Double-hydraulic-control one-way pressure release valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151230 Effective date of abandoning: 20180109 |