CN114233919A - Novel split type oil supply switching device - Google Patents
Novel split type oil supply switching device Download PDFInfo
- Publication number
- CN114233919A CN114233919A CN202111445256.XA CN202111445256A CN114233919A CN 114233919 A CN114233919 A CN 114233919A CN 202111445256 A CN202111445256 A CN 202111445256A CN 114233919 A CN114233919 A CN 114233919A
- Authority
- CN
- China
- Prior art keywords
- plug
- oil
- small valve
- switching device
- supply switching
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims abstract description 35
- 239000003921 oil Substances 0.000 claims description 72
- 239000000295 fuel oil Substances 0.000 claims description 2
- 239000010720 hydraulic oil Substances 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000011010 flushing procedure Methods 0.000 abstract description 4
- 239000000446 fuel Substances 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000009510 drug design Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
- F16K31/1221—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston one side of the piston being spring-loaded
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/04—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0254—Construction of housing; Use of materials therefor of lift valves with conical shaped valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0263—Construction of housing; Use of materials therefor of lift valves multiple way valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/08—Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Multiple-Way Valves (AREA)
Abstract
The invention discloses a novel split type oil supply switching device which comprises a shell, a first plug, a second plug, a small valve, a piston and a spring, wherein the first plug and the second plug are respectively arranged at two ends of the shell; the small valve is connected with the piston through a spring, and the spring has preset initial pressure when being installed. By adopting a split type design, the condition that the small valve is abnormally opened when the oil way outlet is under high pressure can be effectively avoided; the sealing groove for dynamic sealing on the small valve is designed into a dovetail groove form, so that sealing failure caused by flushing of the sealing gasket under a large-flow working condition can be effectively prevented.
Description
Technical Field
The invention belongs to the technical field of hydraulic and fuel oil systems, and relates to a novel split type oil supply switching device for switching two oil ways.
Background
In complex hydraulic and fuel systems, the on-off of oil passages and the mutual switching of multiple oil passages are indispensable functions. However, when the oil outlet is abnormally high-pressure, the valve in the conventional integrated oil supply switching device is pushed open by the high pressure of the outlet, so that the oil outlet is abnormally opened.
Disclosure of Invention
Objects of the invention
Aiming at the technical problems in the prior art, the invention provides the split type oil supply switching device which is simple in structure and convenient to use, can well realize the on-off and switching functions of an oil way, and has the function of avoiding abnormal opening of the high-pressure valve at the outlet.
(II) technical scheme
In order to solve the technical problem, the invention provides a novel split type oil supply switching device which comprises a shell 8, a first plug 4, a second plug 13, a small valve 11, a piston 6 and a spring 9, wherein the first plug 4 and the second plug 13 are respectively arranged at two ends of the shell 8, the small valve 11 and the piston 6 are both arranged in the shell 8, the piston 6 is close to one end of the first plug 4, the small valve 11 is close to one end of the second plug 13, the piston 6 is provided with a blind hole, and a valve rod of the small valve 11 is assembled into the blind hole to play a role in guiding; the small valve 11 is connected with the piston 6 through a spring 9, and the spring 9 is installed with preset initial pressure.
(III) advantageous effects
The novel split type oil supply switching device provided by the technical scheme can effectively avoid the condition that the small valve is abnormally opened when the oil way outlet is under high pressure by adopting a split type design; the sealing groove for dynamic sealing on the small valve is designed into a dovetail groove form, so that sealing failure caused by flushing of the sealing gasket under a large-flow working condition can be effectively prevented.
Drawings
Fig. 1 is a schematic diagram of the novel split type oil supply switching device of the embodiment.
Detailed Description
In order to make the objects, contents and advantages of the present invention clearer, the following detailed description of the embodiments of the present invention will be made in conjunction with the accompanying drawings and examples.
Referring to fig. 1, the novel split type fuel feeding auto-change over device of this embodiment includes casing 8, first end cap 4, second end cap 13, little valve 11, piston 6, spring 9, first end cap 4 and second end cap 13 set up the both ends at casing 8 respectively, little valve 11 and piston 6 are all installed in casing 8, piston 6 is close to the one end of first end cap 4, little valve 11 is close to the one end of second end cap 13, the design has a blind hole on the piston 6, during the valve pole assembly of little valve 11 goes into the blind hole, play the effect of direction, wherein the valve pole and the piston 6 of little valve 11 are clearance fit, cooperation length through rational design blind hole and valve pole, can make this embodiment fuel feeding auto-change over device's valve aperture scope adjustable, satisfy the user demand of different flow operating modes. The spring 9 is arranged between the small valve 11 and the piston 6, the spring 9 has certain initial pressure when being installed, and the split type oil supply switching device is also embodied, namely the small valve 11 and the piston 6 are two independent parts instead of an integrated structure of a traditional valve core, and the risk that the small valve 11 is abnormally opened due to sudden high pressure of an oil path outlet can be effectively avoided due to the split type design.
The split oil supply switching device of the embodiment has three pressure chambers, a control chamber 3 is formed between the first plug 4 and the piston 6, a low pressure chamber 2 is formed between the piston 6 and the small valve 11, and a high pressure chamber 1 is formed between the small valve 11 and the second plug 13. An oil way inlet P port is formed in the high-pressure cavity 1, an oil way outlet A port is formed in the low-pressure cavity 2, and a pilot control port X port communicated with a pilot oil way is formed in the control cavity 3.
In the split oil supply switching device of the embodiment, the first plug 4 and the second plug 13 are respectively provided with the first sealing ring 5 and the third sealing ring 12, and the two plugs and the shell 8 are designed into a thread fit form, so that oil in the oil supply switching device is prevented from leaking.
The small valve 11 in the split type oil supply switching device of the embodiment is designed into a conical surface sealing surface, correspondingly, the inner wall of the shell 8 is provided with an annular conical surface protrusion, and the annular conical surface protrusion are matched with each other to ensure that the oil supply switching device can be reliably sealed even under the working condition of high temperature and high pressure.
The sealing surface of the conical surface of the small valve 11 is provided with an annular sealing groove with a dovetail groove-shaped section, and the sealing gasket 10 is assembled into the annular sealing groove with the dovetail groove-shaped section. The annular sealing groove structure in the dovetail groove form with the opening width smaller than the bottom width is used for preventing sealing failure caused by flushing of the sealing gasket 10 under a large-flow working condition.
The working principle of the split type oil supply switching device of the embodiment is as follows:
as shown in fig. 1, when the pilot control port X is closed, the control chamber 3 is at a low pressure, and the high-pressure oil in the high-pressure chamber 1 overcomes the spring force of the spring 9 to open the small valve 11, so that the oil path inlet P is communicated with the oil path outlet a, and the oil flows out from the oil path outlet a; when the pilot control port X is opened, the control cavity 3 is high-pressure, high-pressure oil in the control cavity 3 pushes the piston 6 to overcome the spring force of the spring 9 and the oil pressure of the high-pressure cavity 1 and the low-pressure cavity 2, the small valve 11 is pressed and closed, the oil way inlet P and the oil way outlet A are disconnected, oil cannot flow out of the oil way outlet A, and the oil can flow out of the other oil way outlet through structural design, so that the switching function of an oil way is realized. In this embodiment, the oil supply adjusting device can effectively avoid the abnormal opening of the small valve 11 at high pressure of the oil outlet by adopting a split design.
According to the technical scheme, the invention has the following remarkable characteristics:
1. by adopting the split design, the invention can effectively avoid the condition that the small valve is abnormally opened when the oil way outlet is under high pressure.
2. The sealing groove for dynamic sealing on the small valve is designed into a dovetail groove form, so that sealing failure caused by flushing of the sealing gasket under a large-flow working condition can be effectively prevented.
3. The reasonable design of the small valve and the plug and other structures ensures that the novel oil supply switching device can be sealed and reliable even under the high-temperature and high-pressure working condition without external leakage.
4. The matching length of the blind hole on the piston and the valve rod on the small valve is reasonably designed, so that the novel valve has adjustable opening range, and can meet the use requirements of different flow working conditions.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The novel split type oil supply switching device is characterized by comprising a shell (8), a first plug (4), a second plug (13), a small valve (11), a piston (6) and a spring (9), wherein the first plug (4) and the second plug (13) are respectively arranged at two ends of the shell (8), the small valve (11) and the piston (6) are both installed in the shell (8), the piston (6) is close to one end of the first plug (4), the small valve (11) is close to one end of the second plug (13), a blind hole is designed in the piston (6), a valve rod of the small valve (11) is assembled into the blind hole to play a guiding role, the small valve (11) is connected with the piston (6) through the spring (9), and the spring (9) has preset initial pressure when being installed.
2. A novel split type oil supply switching device as claimed in claim 1, wherein the valve rod of the small valve (11) is in clearance fit with the piston (6), and the opening range of the small valve (11) can be adjusted by designing the matching length of the blind hole and the valve rod, so that the use under different flow working conditions is met.
3. A novel split type oil supply switching device as claimed in claim 2, which comprises three pressure chambers, wherein a control chamber (3) is formed between the first plug (4) and the piston (6), a low pressure chamber (2) is formed between the piston (6) and the small valve (11), and a high pressure chamber (1) is formed between the small valve (11) and the second plug (13).
4. A novel split type oil supply switching device as claimed in claim 3, wherein the high pressure chamber (1) is provided with an oil path inlet P, the low pressure chamber (2) is provided with an oil path outlet a, and the control chamber (3) is provided with a pilot control port X communicating with a pilot oil path.
5. The novel split oil supply switching device of claim 4, wherein the first plug (4), the second plug (13) and the shell (8) are respectively installed in a threaded fit mode.
6. A novel split type oil supply switching device as claimed in claim 5, characterized in that the first plug (4) is provided with a first sealing ring (5), the piston (6) is provided with a second sealing ring (7), the second plug (13) is provided with a third sealing ring (12), and the three sealing rings are all contacted with the inner wall of the shell (8).
7. A novel split type oil supply switching device as claimed in claim 6, wherein the inner wall of the shell 8 is provided with an annular conical surface protrusion, the outer peripheral surface of the small valve (11) is provided with a conical surface sealing surface, and the two conical surfaces are matched to realize the sealing of the small valve (11).
8. A novel split type oil supply switching device according to claim 7, characterized in that an annular sealing groove with a dovetail-shaped cross section is formed in the conical surface sealing surface of the small valve (11), the sealing gasket (10) is assembled into the annular sealing groove with the dovetail-shaped cross section, and the annular sealing groove structure with the dovetail-shaped cross section and the opening width smaller than the bottom width prevents the sealing gasket (10) from being washed away under the working condition of high flow rate to cause sealing failure.
9. The novel split type oil supply switching device of claim 8, characterized in that when the oil supply switching device works, when the pilot control port X is cut off, the control cavity (3) is at low pressure, and high-pressure oil in the high-pressure cavity (1) overcomes the spring force of the spring (9) to open the small valve (11), so that the oil path inlet P is communicated with the oil path outlet A, and the oil flows out from the oil path outlet A; when the pilot control port X is opened, the control cavity (3) is high-pressure, high-pressure oil in the control cavity (3) pushes the piston (6) to overcome the spring force of the spring (9) and the oil pressure of the high-pressure cavity (1) and the low-pressure cavity (2), so that the small valve (11) is pressed and closed, the oil way inlet P and the oil way outlet A are disconnected, oil cannot flow out from the oil way outlet A, and at the moment, the oil flows out from the other oil way outlet through structural design, so that the switching function of the oil way is realized.
10. The application of the novel split type oil supply switching device based on any one of claims 1-9 in the technical field of hydraulic and fuel oil systems.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111445256.XA CN114233919A (en) | 2021-11-30 | 2021-11-30 | Novel split type oil supply switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111445256.XA CN114233919A (en) | 2021-11-30 | 2021-11-30 | Novel split type oil supply switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114233919A true CN114233919A (en) | 2022-03-25 |
Family
ID=80752287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111445256.XA Pending CN114233919A (en) | 2021-11-30 | 2021-11-30 | Novel split type oil supply switching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114233919A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998015788A1 (en) * | 1996-10-09 | 1998-04-16 | York International A/S | A method of operating a refrigeration system and a control valve |
| CN200986026Y (en) * | 2006-12-04 | 2007-12-05 | 苏州有色金属加工研究院 | Air cylinder type roller milling oil injection valve |
| CN202392124U (en) * | 2011-12-06 | 2012-08-22 | 四川航空工业川西机器有限责任公司 | Extra-high pressure relief valve |
| CN102996558A (en) * | 2012-12-27 | 2013-03-27 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Novel hydraulic valve |
| CN110701312A (en) * | 2019-10-15 | 2020-01-17 | 中冶华天工程技术有限公司 | High-pressure dry oil pneumatic control valve |
| CN212028576U (en) * | 2020-05-07 | 2020-11-27 | 上海埃弗斯阀门制造有限公司 | Adjusting control valve |
-
2021
- 2021-11-30 CN CN202111445256.XA patent/CN114233919A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998015788A1 (en) * | 1996-10-09 | 1998-04-16 | York International A/S | A method of operating a refrigeration system and a control valve |
| CN200986026Y (en) * | 2006-12-04 | 2007-12-05 | 苏州有色金属加工研究院 | Air cylinder type roller milling oil injection valve |
| CN202392124U (en) * | 2011-12-06 | 2012-08-22 | 四川航空工业川西机器有限责任公司 | Extra-high pressure relief valve |
| CN102996558A (en) * | 2012-12-27 | 2013-03-27 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Novel hydraulic valve |
| CN110701312A (en) * | 2019-10-15 | 2020-01-17 | 中冶华天工程技术有限公司 | High-pressure dry oil pneumatic control valve |
| CN212028576U (en) * | 2020-05-07 | 2020-11-27 | 上海埃弗斯阀门制造有限公司 | Adjusting control valve |
Non-Patent Citations (1)
| Title |
|---|
| 王孝天: "《不锈钢阀门的设计与制造》", 原子能出版社, pages: 75 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20220325 |