CN201232846Y - Discharge valve of oil pump for lubricating - Google Patents
Discharge valve of oil pump for lubricating Download PDFInfo
- Publication number
- CN201232846Y CN201232846Y CNU200820121742XU CN200820121742U CN201232846Y CN 201232846 Y CN201232846 Y CN 201232846Y CN U200820121742X U CNU200820121742X U CN U200820121742XU CN 200820121742 U CN200820121742 U CN 200820121742U CN 201232846 Y CN201232846 Y CN 201232846Y
- Authority
- CN
- China
- Prior art keywords
- valve
- plunger
- oil
- valve body
- oil pump
- 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.)
- Expired - Lifetime
Links
- 230000001050 lubricating effect Effects 0.000 title claims description 5
- 239000004519 grease Substances 0.000 claims abstract description 23
- 238000005461 lubrication Methods 0.000 claims abstract description 12
- 238000007790 scraping Methods 0.000 claims description 9
- 239000002828 fuel tank Substances 0.000 claims description 4
- 239000010913 used oil Substances 0.000 abstract 1
- 239000000446 fuel Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
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- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model provides an overflowing relief valve for a lubrication-used oil pump, which is used for ensuring the safe operation of a lubrication oil pump. A valve body and an oil pump are arranged in a tank. The oil pump feeds grease to all of oil sites and is communicated with an oil tube. The oil tube extends into the valve body, and is connected with a valve plug. The valve plug is connected with a plunger. A spring is enclosed outside the plunger which is arranged in the pocket of the valve. The end of plunger protrudes outside the valve body, and is articulated with an oil scraper. An oil discharge outlet connected with the valve plug is arranged on the valve body. A relief valve and a non-return valve are connected with the valve body and are communicated with the valve pocket respectively. The overflowing relief valve is characterized in that an annular gap is arranged between the plunger and the valve body, and communicates with the environment. The opening pressure of the overflowing relief valve can be adjusted based on the grease viscosity; oil is supplied under low pressure at high temperature when the grease viscosity is small; and oil is supplied under high pressure at low temperature when the grease viscosity is high, so that the working pressure of the oil pump can be in the optimum state as required.
Description
Technical field
The utility model relates to the lubricating fitting technical field, relates to the hydrovalve technical field simultaneously, specifically relates to a kind of overflow safety valve of lubrication oil pump.
Background technique
In lubrication system, be provided with relief valve, so that system pressure maintains in the predefined fuel feeding actual demand scope; Owing to the viscosity of grease is that decline along with ambient temperature increases, and predefined oil pressure relief is under all identical situation of other ambient conditionss of lubrication oil pump, the head pressure grease can not change along with variation of temperature yet, and predefined relief valve pressure often can not satisfy the needs of actual fuel feeding because of the variation of external temperature; Can height-adjusting system pressure even take measures, but can't pressure limiting, cause safety to can not get guaranteeing; Do not make the oil pump working pressure can be in the optimum state of actual demand and safe and reliable device all the time and still have at present.
Summary of the invention
The purpose of this utility model is in order to solve the deficiency of above-mentioned prior art, a kind of overflow safety valve of lubrication oil pump to be provided, can change the charge oil pressure of oil pump with the size of grease viscosity, making the oil pump working pressure can be in the optimum state of actual demand all the time.
For achieving the above object, the technical solution adopted in the utility model is such: a kind of overflow safety valve of lubrication oil pump comprises valve body, spool, oil pipe, valve pocket, plunger, spring, oil scraping plate and safety valve and one-way valve; Said valve body is in oil pump places fuel tank, oil pump output grease is for each lubricating point, and communicate with oil pipe, oil pipe feeds in the valve body and joins with spool, spool connects plunger, the outer sheathed spring of plunger, and place in the valve pocket, the outer hinged oil scraping plate of valve body is stretched out in the end of plunger, and valve body is provided with the oil drain out that joins with spool; Said safety valve and one-way valve are connected to respectively on the valve body, all communicate with valve pocket; It is characterized in that be provided with the annular space between said plunger and valve body, this annular space communicates with the external world.
Owing to adopted technique scheme, the overflow safety valve of a kind of lubrication oil pump of the present utility model, can adjust the cracking pressure of overflow safety valve according to the size of grease viscosity voluntarily, at temperature height, grease viscosity hour implementation low pressure oil supply, and low in temperature, carry out the High Voltage fuel feeding when grease viscosity is big, make the oil pump working pressure can be in the optimum state of actual demand all the time.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the sectional view of Fig. 1.
Among the figure: 1, oil pipe, 2, spool, 3, plunger, 4, spring, 5, oil scraping plate, A, safety valve, B, one-way valve, C, valve pocket, D, annular space, E, annular space, F, oil drain out.
Embodiment
Shown in Fig. 1-2, the overflow safety valve of a kind of lubrication oil pump of the present utility model comprises valve body, spool 2, oil pipe 1, valve pocket C, plunger 3, spring 4, oil scraping plate 5 and safety valve A and one-way valve B; Said valve body is in oil pump places fuel tank, oil pump output grease is for each lubricating point, and communicate with oil pipe 1, oil pipe 1 feeds in the valve body and joins with spool 2, spool 2 connects plunger 3, the outer sheathed spring 4 of plunger, and place in the valve pocket C, the outer hinged oil scraping plate 5 of valve body is stretched out in the end of plunger 3, and valve body is provided with the oil drain out F that joins with spool 2; Said safety valve A and one-way valve B are connected to respectively on the valve body, all communicate with valve pocket C; It is characterized in that be provided with the annular space between said plunger 3 and valve body, this annular space communicates with the external world;
Said annular space comprises the annular space D that is located at position, nearly plunger 3 left part and annular space E two places of position, plunger right part;
In order to guarantee that oil pump finishing the off-load rapidly of a fuel feeding week after date, is provided with compensating groove G on plunger 3, this compensating groove G can make valve pocket C and exterior when plunger 3 moves to left to desired location.
Working principle of the present utility model is such: when opening oil pump, along with the running of oil pump, pressure fuel pump constantly raises, and the grease in the oil pipe promotes spool 2, plunger 3 is moved to the left, while pressure spring 4, and the oil scraping plate 5 of plunger end is rotated counterclockwise.Resistance three parts that resistance that the drag overall that moves to left of spool 2 this moment is discharged by annular space D, E by the counter-force of pressure spring 4, grease in the valve pocket C and scraper plate 5 rotate in grease are formed.Except the viscosity of the counter-force of spring 4 and grease was irrelevant, all the other were all relevant with it.When the viscosity of grease hour, the resistance that resistance that the grease in the valve pocket C is discharged by annular space D, E and scraper plate 5 rotate in grease is just less, vice versa.Along with the raising of pressure fuel pump, spool 2 moves to left gradually, and when the right side of spool 2 moved to the critical localisation of soon oil drain out F being opened, pressure fuel pump reached the numerical value of setting.If the viscosity of grease is excessive, safety valve A is opened, and the resistance that spool 2 is moved to left is not more than the safety value of setting.In the oil pump real-world operation, its pressure will make corresponding changes along with the size of grease viscosity, makes it dynamically be in the optimum state, and can not transship like this.After oil pump quit work, under the effect of spring 4, plunger 3, spool 2 moved to right lentamente, and took oil scraping plate 5 to and turn clockwise, reposition, and by one-way valve B the grease in the fuel tank is replenished among the valve pocket C.
Claims (3)
1, a kind of overflow safety valve of lubrication oil pump comprises valve body, spool (2), oil pipe (1), valve pocket (C), plunger (3), spring (4), oil scraping plate (5) and safety valve (A) and one-way valve (B); Said valve body is in oil pump places fuel tank, oil pump output grease is for each lubricating point, and communicate with oil pipe (1), oil pipe (1) feeds in the valve body and joins with spool (2), spool (2) connects plunger (3), the outer sheathed spring (4) of plunger, and place in the valve pocket (C), the outer hinged oil scraping plate (5) of valve body is stretched out in the end of plunger (3), and valve body is provided with the oil drain out (F) that joins with spool (2).Said safety valve (A) and one-way valve (B) are connected to respectively on the valve body, all communicate with valve pocket (C), and it is characterized in that: be provided with the annular space between said plunger (3) and valve body, this annular space communicates with the external world;
Said annular space comprises the annular space D that is located at position, nearly plunger 3 left part and annular space E two places of position, plunger right part;
2, the overflow safety valve of a kind of lubrication oil pump according to claim 1 is characterized in that: said annular space comprises the annular space (D) of being located at nearly plunger (3) position, left part and the annular space (E) of position, plunger right part.
3, the overflow safety valve of a kind of lubrication oil pump according to claim 1 is characterized in that: compensating groove (G) is set on said plunger (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820121742XU CN201232846Y (en) | 2008-07-18 | 2008-07-18 | Discharge valve of oil pump for lubricating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820121742XU CN201232846Y (en) | 2008-07-18 | 2008-07-18 | Discharge valve of oil pump for lubricating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201232846Y true CN201232846Y (en) | 2009-05-06 |
Family
ID=40619226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820121742XU Expired - Lifetime CN201232846Y (en) | 2008-07-18 | 2008-07-18 | Discharge valve of oil pump for lubricating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201232846Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102466120A (en) * | 2010-10-28 | 2012-05-23 | 现代自动车株式会社 | Relief valve for oil pump |
| CN103016932A (en) * | 2011-09-20 | 2013-04-03 | 上海航盛实业有限公司 | Oil pushing rod device |
| CN107631159A (en) * | 2017-09-01 | 2018-01-26 | 安徽工程大学 | One kind supplies fat pipeline overflow valve |
-
2008
- 2008-07-18 CN CNU200820121742XU patent/CN201232846Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102466120A (en) * | 2010-10-28 | 2012-05-23 | 现代自动车株式会社 | Relief valve for oil pump |
| CN102466120B (en) * | 2010-10-28 | 2016-01-20 | 现代自动车株式会社 | For the relief valve of lubricating pump |
| CN103016932A (en) * | 2011-09-20 | 2013-04-03 | 上海航盛实业有限公司 | Oil pushing rod device |
| CN103016932B (en) * | 2011-09-20 | 2015-10-28 | 上海航盛实业有限公司 | Grease push rod device |
| CN107631159A (en) * | 2017-09-01 | 2018-01-26 | 安徽工程大学 | One kind supplies fat pipeline overflow valve |
| CN107631159B (en) * | 2017-09-01 | 2019-05-17 | 安徽工程大学 | It is a kind of for rouge pipeline overflow valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Ningbo Sanlang Global Vehicle Part Co., Ltd. Assignor: Sanlang Lubricating Element Co., Ltd., Ningbo Contract record no.: 2011330000842 Denomination of utility model: Discharge valve of oil pump for lubricating Granted publication date: 20090506 License type: Exclusive License Record date: 20110629 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090506 |