CN201884084U - Anti-leakage structure for oil holes on sealing surface - Google Patents
Anti-leakage structure for oil holes on sealing surface Download PDFInfo
- Publication number
- CN201884084U CN201884084U CN2010206590419U CN201020659041U CN201884084U CN 201884084 U CN201884084 U CN 201884084U CN 2010206590419 U CN2010206590419 U CN 2010206590419U CN 201020659041 U CN201020659041 U CN 201020659041U CN 201884084 U CN201884084 U CN 201884084U
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- sealing surface
- leakage
- oil
- slots
- leakage structure
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- Expired - Lifetime
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- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses an anti-leakage structure for oil holes on a sealing surface by which an engine body is connected with other parts; annular slots are arranged around the oil holes on the sealing surface; the annular slots are connected with reversing slots; and the reversing slots are communicated with a whole-machine low-pressure oil tank or an oil bottom shell. The annular slots are closely ring-shaped or semi-closely ring-shaped. The annular slots and the reversing slots are casting slots or machining slots which have the width and depth of more than or equal to 2mm. The sealing surface has the planeness of less than or equal to 0.1mm and has the surface coarseness of less than or equal to 3.2 microns. The sealing surface is coated by sealing glue and is connected with the other part by a bolt; and a sealing pad is not used. The anti-leakage structure has simple structure and extremely strong practicability, and is easy to machine. By adopting the anti-leakage structure, the leakage of the lubricant at the oil outlet towards the sealing surface can be prevented effectively; the anti-leakage structure can be used for the engine, and can be also used for the leakage prevention of the sealing surfaces by which oil holes can pass in the mechanical manufacturing industries; the leakage of the machine oil can be eliminated, the safety running of the engine can be ensured, and simultaneously the whole machine is clean and attractive; and therefore, the anti-leakage structure has wide practicability and economy.
Description
Technical field
The utility model belongs to Structure of Internal-Combustion Engine, is specifically related to the project organization that a kind of sealing surface that has oilhole to pass through prevents oil seepage.
Background technique
In industries such as motor manufacturing, often there is lubricating oil path to pass through the sealing surface of two parts, passes through such as being provided with oilhole between diesel engine body front-end face and the gear chamber.This lubricant oil is to carry out pump circulation by oil pump, the oil pump outlet pressure is higher, and the vibration that produces when complete machine is again worked is so there is lubricating oil path to pass through the sealing surface of two parts mostly, after complete machine work a period of time, just have the phenomenon that seepage takes place at the sealing surface place lubricant oil.The long-term seepage of lubricant oil will cause the reduction of machine oil oil level, if forget that replenishing the work that will influence complete machine moves, even cause engine mechanical to damage, and also influence the cleaning and the appearance quality of motor simultaneously.Proposition of the present utility model can make this problem effectively be solved.
Summary of the invention
The purpose of this utility model provides the project organization that a kind of sealing surface that has oilhole to pass through prevents oil seepage
Below in conjunction with accompanying drawing structural principle of the present utility model is described.The principle of sealing surface oilhole anti-leakage structure is to have a circular groove and backflow (oil) groove around the sealing surface upper oil hole, because circular groove and back flash are relative " disconnection " (as Fig. 1) with oilhole, have certain pressure lubricant oil from oilhole to around when leaking, at first enter circular groove, flow back to by the oil sump or the oil sump of back flash then to low pressure.Be that pressure reduction between oilhole and the circular groove is much larger than the pressure reduction between oilhole (crossing oil groove) and the big sealing surface.Therefore when the motor complete machine is worked the high pressure oil in the oil circuit under the complete machine oscillation effect to sealing surface all around during seepage, lubricant oil at first leaks out to the circular groove around the oilhole, because circular groove is communicated with the low pressure oil sump by back flash, thereby can effectively prevent the outside seepage of lubricant oil.
Description of drawings
Fig. 1 is the utility model closed ring groove theory structure sketch.
Fig. 2 is the semiclosed circular groove theory structure of a utility model sketch.
Fig. 3 is the utility model embodiment's a structure principle chart.
Embodiment
Below by specific embodiment structural principle of the present utility model is described further.Sealing surface oilhole anti-leakage structure is to be provided with circular groove 3 around sealing surface 1 upper oil hole 2, and circular groove is connected with back flash 4, and back flash 4 leads to complete machine low pressure oil sump or oil sump 5.Circular groove 3 is closed ring (as Fig. 1) or is semiclosed annular (as Fig. 2).Circular groove 3 is the casting groove with back flash 4 or is machined groove.Well width 〉=2mm, groove depth 〉=2mm.Sealing surface 1 planeness≤0.1mm, surface roughness≤3.2 μ m.Sealing surface is coated with sealer and is connected with another part by bolt, does not use sealing gasket.
Embodiment shown in Fig. 3 is the gear chamber of motor, and two oilholes are arranged on the gear chamber ear end face, processes circular groove 3 and back flash 4 around the gear chamber oilhole, and circular groove is connected with back flash, and back flash leads to oil sump 5.The gear chamber ear end face is coated with sealer and is connected by bolt with the body front-end face, high pressure oil when engine operation in the lubricating oil path under the complete machine oscillation effect from oilhole around the sealing surface during seepage, oil seepage is to oilhole circular groove on every side, because circular groove is communicated with oil sump by back flash, the lubricant oil that leaks out reduces and can flow back in the oil sump by back flash in the circular groove internal pressure, thereby can prevent effectively that lubricant oil is from the outside seepage of sealing surface between body and the gear chamber.
Characteristics of the present utility model and beneficial effect are:Simple in structure but practicality is very strong, and easily processing. Can effectively prevent oil outlet lubricating oil to the sealing surface leakage problems, the utility model also can be used for the sealing surface antiseep that other similar machinery manufacturing industry has oilhole to pass through except being used for engine. Eliminate lubricating oil leakage when guaranteeing the engine health operation, also made the complete machine outward appearance totally beautiful, had widely practicality and economy.
Claims (4)
1. sealing surface oilhole anti-leakage structure is characterized in that being provided with circular groove (3) around sealing surface (1) upper oil hole (2), and circular groove is connected with back flash (4), and back flash leads to complete machine low pressure oil sump or oil sump (5).
2. according to the described sealing surface oilhole of claim 1 anti-leakage structure, it is characterized in that described circular groove (3) is closed ring or is semiclosed annular.
3. according to claim 1 or 2 described sealing surface oilhole anti-leakage structures, it is characterized in that described circular groove (3) and back flash (4) are the casting groove or are machined groove, well width 〉=2mm, groove depth 〉=2mm.
4. according to claim 1 or 2 described sealing surface oilhole anti-leakage structures, it is characterized in that described sealing surface (1) planeness≤0.1mm, surface roughness≤3.2 μ m, sealing surface is coated with sealer and is connected with another part by bolt, does not use sealing gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206590419U CN201884084U (en) | 2010-12-15 | 2010-12-15 | Anti-leakage structure for oil holes on sealing surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206590419U CN201884084U (en) | 2010-12-15 | 2010-12-15 | Anti-leakage structure for oil holes on sealing surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201884084U true CN201884084U (en) | 2011-06-29 |
Family
ID=44181624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206590419U Expired - Lifetime CN201884084U (en) | 2010-12-15 | 2010-12-15 | Anti-leakage structure for oil holes on sealing surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201884084U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806371A (en) * | 2015-03-20 | 2015-07-29 | 奇瑞汽车股份有限公司 | Sealing structure between upper cylinder body and lower frame of equally-divided cylinder body |
| CN112523869A (en) * | 2020-11-30 | 2021-03-19 | 中国航发动力股份有限公司 | Anti-skid oil leakage supporting box body of flue gas turbine |
-
2010
- 2010-12-15 CN CN2010206590419U patent/CN201884084U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806371A (en) * | 2015-03-20 | 2015-07-29 | 奇瑞汽车股份有限公司 | Sealing structure between upper cylinder body and lower frame of equally-divided cylinder body |
| CN112523869A (en) * | 2020-11-30 | 2021-03-19 | 中国航发动力股份有限公司 | Anti-skid oil leakage supporting box body of flue gas turbine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: DONGFENG CHAOYANG DIESEL ENGINE POWER LIMITED Free format text: FORMER OWNER: DONGFENG CHAOYANG DIESEL ENGINE CO., LTD. Effective date: 20120331 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120331 Address after: 122000 the Yellow River Road, Liaoning, No. 3, No. 51, No. Patentee after: Dongfeng Chaoyang Chaochai Power Co., Ltd. Address before: 122000 the Yellow River Road, Liaoning, No. 3, No. 51, No. Patentee before: Dongfeng Chaoyang Diesel Engine Co., Ltd. |
|
| 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 utility model: Anti-leakage structure for oil holes on sealing surface Effective date of registration: 20190612 Granted publication date: 20110629 Pledgee: Lingyuan steel enterprise limited liability company Pledgor: Dongfeng Chaoyang Chaochai Power Co., Ltd. Registration number: 2019210000021 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110629 |