CN106523884A - Anti-clamping high and low pressure dual protection pressure-limiting valve and oil pump - Google Patents
Anti-clamping high and low pressure dual protection pressure-limiting valve and oil pump Download PDFInfo
- Publication number
- CN106523884A CN106523884A CN201611183052.2A CN201611183052A CN106523884A CN 106523884 A CN106523884 A CN 106523884A CN 201611183052 A CN201611183052 A CN 201611183052A CN 106523884 A CN106523884 A CN 106523884A
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- CN
- China
- Prior art keywords
- valve
- pressure
- steel ball
- mouths
- valve element
- 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.)
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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
- F16N—LUBRICATING
- F16N23/00—Special adaptations of check valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/02—Pressure lubrication using lubricating pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/16—Controlling lubricant pressure or quantity
-
- 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
- F16N—LUBRICATING
- F16N13/00—Lubricating-pumps
-
- 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
- F16N—LUBRICATING
- F16N2270/00—Controlling
- F16N2270/60—Pressure
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
The invention provides an anti-clamping high and low pressure dual protection pressure-limiting valve which comprises a valve body, and an upper valve cavity and a lower valve cavity which are communicated with each other are arranged in the valve body; an opening P for oil inlet is formed in the lower end of the lower valve cavity, a second steel ball, a second spring and a second bowl-shaped plug are sequentially installed in the lower valve cavity from bottom to top, the second steel ball is in sealing fit with the opening P through action force of the second spring, and a through hole is formed in the middle portion of the second bowl-shaped plug; an opening A used for oil drainage is formed in the cavity wall of the upper valve cavity, and a valve element, a steel ball, a spring and a bowl-shaped plug are sequentially installed inside the upper valve cavity from bottom to top; the valve element is of a cylinder structure with a lower end face, a through hole capable of being communicated with the opening A is formed in the side wall of the valve element, an opening C is formed in the middle of the lower end face of the valve element, and the steel ball is installed in the valve element and is in sealing fit with the opening C through action force of the spring. The invention further provides an oil pump with the above pressure-limiting valve.
Description
Technical field
The present invention relates to the lubricating oil pump of engine lubrication system, more particularly to a kind of pressure limiting valve and installation limited valve.
Background technology
Pressure limiting valve is primarily served the purpose of in engine lubrication system：When oil pressure exceedes certain pressure, unnecessary machine oil leads to
Cross pressure limiting valve to leak so as to reach the purpose of protection system.In prior art, the pressure limiting valve structure of lubricating oil pump is generally as shown in Figure 1：
It is made up of valve body 1, valve element 2, spring 4, bowl-type plug 5.Wherein valve body 1 and valve element 2 are that small-gap suture coordinates, and hydraulic oil is made by P mouths
For valve element 2, as pressure increases to a certain extent, pressure oil promotes valve element 2 to move upwards, P mouths is communicated with A mouths, allows height
Force feed leaks and carrys out protection system.But because the factors such as the impurity in machine oil affect in practical application, the fortune between valve element 2 and valve body 1
It is dynamic to be susceptible to clamping stagnation, when there is clamping stagnation in motor process upwards in valve element 2, hydraulic oil cannot pressure release, cause system oil pressure inclined
Height, and then it is easily damaged systematic part.And when valve element 2 occurs clamping stagnation during closing pressure release is moved downward, pressure oil
Persistently can reveal, so as to cause system oil pressure low, serious meeting causes electromotor Bearing score.
The content of the invention
The invention aims to solve the problems, such as above-mentioned prior art, there is provided a kind of anti-clamping stagnation high-low pressure is dual
Protection pressure limiting valve.It is a further object to provide a kind of lubricating oil pump for being provided with this pressure limiting valve.
In order to solve above-mentioned technical problem, the present invention with regard to the technical scheme of pressure limiting valve is：A kind of anti-clamping stagnation high-low pressure is double
Pressure limiting valve, including valve body are protected again, and the uuper valve chamber and lower valve chamber for interconnecting is provided with the valve body；The lower end of the lower valve chamber
The P mouths for oil-feed are provided with, the lower valve intracavity is sequentially arranged with the second steel ball, second spring and the second bowl-type plug from bottom to up,
Second steel ball is coordinated with the sealing of P mouths by the active force of second spring, is provided with through hole in the middle part of the second bowl-type plug；The uuper valve chamber
Cavity wall be provided with the A mouths for draining, the upper valve intracavity is sequentially arranged with valve element, steel ball, spring and bowl-type plug from bottom to up；Institute
It is the cylindrical structure with lower surface to state valve element, and the side wall of valve element is provided with the through hole that can be communicated with A mouths, in the middle of the lower surface of valve element
C mouths are provided with, steel ball is arranged in valve element and is coordinated with the sealing of C mouths by the active force of spring.
The operation principle of above-mentioned technical proposal is：Under normal circumstances, as the pressure of P mouths increases, pressure oil promotes second
Steel ball overcomes the elastic force of second spring to move upwards, and pressure oil just enters into lower valve chamber, so promote valve element and steel ball jointly to
Upper motion, makes P mouths communicate with A mouths, and hydraulic oil is leaked, it is ensured that system pressure is not higher；When system oil pressure is reduced, valve element
Moved from the top down under the elastic force effect of spring jointly with steel ball, close A mouths, pressure oil stops leaking, it is ensured that system pressure
Power demand.If valve element occurs the phenomenon of valve element and valve body clamping stagnation in motor process upwards, steel ball can under pressure oil effect
Individually to move upwards, communicate P mouths, C mouths, A mouth threes, hydraulic oil is leaked, and reaches the mesh of protection system hypertonia
's；When system pressure declines, when valve element occurs the phenomenon of valve element and valve body clamping stagnation from top to down in motor process, pressure oil is still
Can be by A mouth pressure releases, when system pressure declines to a certain extent, the second steel ball cuts out P mouths under the elastic force effect of second spring,
Prevent pressure oil from leaking, reach the requirement of protection system minimum pressure, protect engine health well.
Preferably, the unlatching drainage pressure of valve element is P2, and the unlatching drainage pressure of the second steel ball is P1, P2 ＞ P1.Using
Such design, is easy to pressure oil to push the second steel ball open and swimmingly enters lower valve chamber.
Preferably, the unlatching drainage pressure of steel ball is P3, P3 ＞ P2.Using such design, it is ensured that in pressure limiting
In the case that valve is working properly, steel ball will not open draining, and only when valve element and valve body occur in that catching phenomenon, oil pressure continues to increase
Greatly, steel ball can just open draining.
The present invention with regard to the technical scheme of lubricating oil pump is：A kind of lubricating oil pump, including the pump housing, are provided with the pump housing above-mentioned
Anti- clamping stagnation high-low pressure pressure limiting valve for dual protection described in technical scheme.
Description of the drawings
Fig. 1 is the structural representation of pressure limiting valve of the prior art；
Fig. 2 is the pressure limiting valve overall structure diagram in the embodiment of the present invention；
Reference is：
1 valve body, 2 valve element, 3 steel ball
4 spring, 5 bowl-type plug, 6 second steel ball
7 second spring, 8 second bowl-type plug.
Specific embodiment
For the ease of the understanding of those skilled in the art, the present invention is made further with accompanying drawing with reference to embodiment
It is bright, the content that embodiment is referred to not limitation of the invention.
In describing the invention, it is to be understood that term " " center ", " longitudinal direction ", " horizontal ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise " is, based on orientation shown in the drawings or position relationship, to be for only for ease of
The description present invention and simplified description, rather than indicate or imply that the device or element of indication must have specific orientation, Yi Te
Fixed azimuth configuration and operation, therefore be not considered as limiting the invention.
Additionally, term " ", " second " be only used for describe purpose, and it is not intended that indicate or imply relative importance or
The implicit quantity for indicating indicated technical characteristic.In describing the invention, " multiple " are meant that two or more,
Unless otherwise expressly limited specifically.In describing the invention, it should be noted that unless otherwise prescribed and limit, term
" installation ", " being connected ", " connection " should be interpreted broadly, for example, it may be being mechanically connected or electrically connecting, or two elements
Internal connection, can be joined directly together, it is also possible to be indirectly connected to by intermediary, for one of ordinary skill in the art
For, the concrete meaning of the term can be understood as the case may be.
Embodiment 1
A kind of anti-clamping stagnation high-low pressure pressure limiting valve for dual protection as shown in Figure 2, including valve body 1, are provided with the valve body 1 and are mutually connected
Logical uuper valve chamber and lower valve chamber；The lower end of the lower valve chamber is provided with the P mouths for oil-feed, and the lower valve intracavity is from bottom to up successively
Equipped with the second steel ball 6, second spring 7 and the second bowl-type plug 8, the second steel ball 6 is sealed with P mouths by the active force of second spring 7
Coordinate, the middle part of the second bowl-type plug 8 is provided with through hole；The cavity wall of the uuper valve chamber is provided with the A mouths for draining, the upper valve intracavity
Valve element 2, steel ball 3, spring 4 and bowl-type plug 5 are sequentially arranged with from bottom to up；The valve element 2 is the cylindrical structure with lower surface, valve
The side wall of core 2 is provided with the through hole that can be communicated with A mouths, and C mouths are provided with the middle of the lower surface of valve element 2, and steel ball 3 is arranged in valve element 2 simultaneously
Coordinated with the sealing of C mouths by the active force of spring 4.
Wherein valve body 1 and valve element 2 are that small-gap suture coordinates, and bowl-type plug 5 and the second bowl-type plug 8 are interference fit with valve body 1.
It is P1 to arrange the second steel ball 6 and open drainage pressure（P1 is system minimum safe pressure）, valve element 2 open drainage pressure be P2, steel
It is P3, P3 ＞ P2 ＞ P1 that ball 3 opens drainage pressure.Under normal circumstances, when increasing to P1 with P mouth pressure, pressure oil promotes the
Two steel balls 6 are moved upwards, and pressure oil flows into lower valve chamber, when pressure reaches P2, pressure oil promote valve element 2 and steel ball 3 it is common to
Upper motion makes P mouths communicate with A mouths, and hydraulic oil leaks, it is ensured that system pressure is not higher.When system oil pressure is reduced less than P2, valve
Core 2 is moved from the top down, closes A mouths, and pressure oil stops leaking, it is ensured that system pressure demand.As described above, when valve element 2 to
Occur catching phenomenon in upper motor process, when system pressure reaches P3, pressure oil pushes steel ball 3 open, make hydraulic oil from outside C mouth-A mouths
Let out, reach the purpose of protection system hypertonia；When system pressure declines, there is clamping stagnation in motor process from top to down in valve element 2
During phenomenon, pressure oil still can be by A mouth pressure releases, and when system pressure declines to a certain extent, the second steel ball 6 is in second spring 7
Elastic force effect it is lower close P mouths, prevent pressure oil from leaking, reach the requirement of protection system minimum pressure, protection well is started
Machine safety.
Embodiment 2
A kind of lubricating oil pump, including the pump housing, the anti-clamping stagnation high-low pressure duplicate protection limit being provided with the pump housing described in embodiment 1
Pressure valve.Those skilled in the art can be embedded into the valve body of pressure limiting valve in the pump housing as needed, it is also possible to by the valve of pressure limiting valve
Body and the pump housing are integrally formed.
Above-described embodiment is the present invention preferably implementation, and in addition, the present invention can be realized with alternate manner,
On the premise of conceiving without departing from the technical program, any obvious replacement is within protection scope of the present invention.
In order to allow those of ordinary skill in the art more easily to understand improvements of the present invention relative to prior art, this
Some accompanying drawings of invention and description have been simplified, and for the sake of clarity, present specification is omitted some other units
Element, those of ordinary skill in the art should be aware that these elements for omitting also may make up present disclosure.
Claims (4)
1. a kind of anti-clamping stagnation high-low pressure pressure limiting valve for dual protection, including valve body（1）, it is characterised in that：The valve body（1）Inside it is provided with
The uuper valve chamber for interconnecting and lower valve chamber；The lower end of the lower valve chamber is provided with the P mouths for oil-feed, the lower valve intracavity from down to
On be sequentially arranged with the second steel ball（6）, second spring（7）With the second bowl-type plug（8）, the second steel ball（6）By second spring（7）'s
Active force is coordinated with the sealing of P mouths, the second bowl-type plug（8）Middle part be provided with through hole；The cavity wall of the uuper valve chamber is provided with for draining
A mouths, the upper valve intracavity is sequentially arranged with valve element from bottom to up（2）, steel ball（3）, spring（4）With bowl-type plug（5）；The valve element
（2）It is the cylindrical structure with lower surface, valve element（2）Side wall be provided with the through hole that can be communicated with A mouths, valve element（2）Lower surface
Centre is provided with C mouths, steel ball（3）Installed in valve element（2）It is interior and pass through spring（4）The sealing of active force and C mouths coordinate.
2. anti-clamping stagnation high-low pressure pressure limiting valve for dual protection according to claim 1, it is characterised in that：Valve element（2）Unlatching
Drainage pressure is P2, the second steel ball（6）Unlatching drainage pressure be P1, P2 ＞ P1.
3. anti-clamping stagnation high-low pressure pressure limiting valve for dual protection according to claim 2, it is characterised in that：Steel ball（3）Unlatching
Drainage pressure is P3, P3 ＞ P2.
4. a kind of lubricating oil pump, including the pump housing, it is characterised in that：Install on the pump housing just like any one in claims 1 to 3
Described anti-clamping stagnation high-low pressure pressure limiting valve for dual protection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611183052.2A CN106523884B (en) | 2016-12-20 | 2016-12-20 | Anti- clamping stagnation high-low pressure pressure limiting valve for dual protection and lubricating oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611183052.2A CN106523884B (en) | 2016-12-20 | 2016-12-20 | Anti- clamping stagnation high-low pressure pressure limiting valve for dual protection and lubricating oil pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106523884A true CN106523884A (en) | 2017-03-22 |
| CN106523884B CN106523884B (en) | 2018-02-09 |
Family
ID=58341166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611183052.2A Active CN106523884B (en) | 2016-12-20 | 2016-12-20 | Anti- clamping stagnation high-low pressure pressure limiting valve for dual protection and lubricating oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106523884B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355665A (en) * | 2017-09-09 | 2017-11-17 | 湖南机油泵股份有限公司 | A kind of lubricating oil pump combination valve |
| CN108005746A (en) * | 2017-12-29 | 2018-05-08 | 潍柴动力股份有限公司 | A kind of engine main oil gallery pressure limiting valve and engine |
| CN108868682A (en) * | 2018-07-12 | 2018-11-23 | 东营市昌瑞石油机械配件有限责任公司 | A kind of special polished rod sealer |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2403511A1 (en) * | 1977-09-15 | 1979-04-13 | Craf | decompression valve for lubrication circuit - has ball with biased sleeve maintaining pressure in circuit when lubrication pump is not operating |
| DE19614446C1 (en) * | 1996-04-12 | 1998-01-29 | Umeta Hermann Ulrichskoetter M | Grease gun check valve |
| CN101720400A (en) * | 2007-05-23 | 2010-06-02 | 安森有限公司 | valves |
| CN201747423U (en) * | 2010-08-16 | 2011-02-16 | 浙江平柴泵业有限公司 | Oil pump with pressure limiting valve for dual protection |
| CN102597440A (en) * | 2009-12-07 | 2012-07-18 | 株式会社Tbk | Engine lubricating oil supply device |
| US20160097486A1 (en) * | 2014-10-01 | 2016-04-07 | Curtis Roys | Check valve |
| CN206280715U (en) * | 2016-12-20 | 2017-06-27 | 湖南机油泵股份有限公司 | Anti- clamping stagnation high-low pressure pressure limiting valve for dual protection and lubricating oil pump |
-
2016
- 2016-12-20 CN CN201611183052.2A patent/CN106523884B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2403511A1 (en) * | 1977-09-15 | 1979-04-13 | Craf | decompression valve for lubrication circuit - has ball with biased sleeve maintaining pressure in circuit when lubrication pump is not operating |
| DE19614446C1 (en) * | 1996-04-12 | 1998-01-29 | Umeta Hermann Ulrichskoetter M | Grease gun check valve |
| CN101720400A (en) * | 2007-05-23 | 2010-06-02 | 安森有限公司 | valves |
| CN102597440A (en) * | 2009-12-07 | 2012-07-18 | 株式会社Tbk | Engine lubricating oil supply device |
| CN201747423U (en) * | 2010-08-16 | 2011-02-16 | 浙江平柴泵业有限公司 | Oil pump with pressure limiting valve for dual protection |
| US20160097486A1 (en) * | 2014-10-01 | 2016-04-07 | Curtis Roys | Check valve |
| CN206280715U (en) * | 2016-12-20 | 2017-06-27 | 湖南机油泵股份有限公司 | Anti- clamping stagnation high-low pressure pressure limiting valve for dual protection and lubricating oil pump |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355665A (en) * | 2017-09-09 | 2017-11-17 | 湖南机油泵股份有限公司 | A kind of lubricating oil pump combination valve |
| CN107355665B (en) * | 2017-09-09 | 2022-08-09 | 湖南机油泵股份有限公司 | Combination valve for oil pump |
| CN108005746A (en) * | 2017-12-29 | 2018-05-08 | 潍柴动力股份有限公司 | A kind of engine main oil gallery pressure limiting valve and engine |
| CN108005746B (en) * | 2017-12-29 | 2024-04-16 | 潍柴动力股份有限公司 | Engine main oil duct pressure limiting valve and engine |
| CN108868682A (en) * | 2018-07-12 | 2018-11-23 | 东营市昌瑞石油机械配件有限责任公司 | A kind of special polished rod sealer |
| CN108868682B (en) * | 2018-07-12 | 2024-04-12 | 东营市昌瑞石油机械配件有限责任公司 | Special polish rod sealer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106523884B (en) | 2018-02-09 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Anti jamming high and low pressure double protection pressure limiting valve and oil pump Effective date of registration: 20211224 Granted publication date: 20180209 Pledgee: Bank of Beijing Limited by Share Ltd. Changsha branch Pledgor: Hunan Oil Pump Co.,Ltd. Registration number: Y2021430000097 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230105 Granted publication date: 20180209 Pledgee: Bank of Beijing Limited by Share Ltd. Changsha branch Pledgor: Hunan Oil Pump Co.,Ltd. Registration number: Y2021430000097 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Anti-stick high and low pressure dual protection pressure limiting valve and oil pump Effective date of registration: 20230130 Granted publication date: 20180209 Pledgee: Bank of Beijing Limited by Share Ltd. Changsha branch Pledgor: Hunan Oil Pump Co.,Ltd. Registration number: Y2023430000008 |