CN107654481A - A kind of crank-shaft link neck oil pocket sealing structure - Google Patents
A kind of crank-shaft link neck oil pocket sealing structure Download PDFInfo
- Publication number
- CN107654481A CN107654481A CN201710923437.6A CN201710923437A CN107654481A CN 107654481 A CN107654481 A CN 107654481A CN 201710923437 A CN201710923437 A CN 201710923437A CN 107654481 A CN107654481 A CN 107654481A
- Authority
- CN
- China
- Prior art keywords
- oil
- oil pocket
- stifled
- rod journal
- crank
- 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
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Classifications
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/04—Crankshafts, eccentric-shafts; Cranks, eccentrics
- F16C3/06—Crankshafts
- F16C3/14—Features relating to lubrication
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C7/00—Connecting-rods or like links pivoted at both ends; Construction of connecting-rod heads
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Sealing Devices (AREA)
- Sealing With Elastic Sealing Lips (AREA)
Abstract
The invention provides a kind of crank-shaft link neck oil pocket sealing structure, including bent axle, oily stifled, zero shape rubber seal and jump ring, the bent axle is provided with the oil circuit that lubricating oil is supplied from trunnion to rod journal, the oil duct of the oil circuit from rod journal oil pocket and two neighboring trunnion to rod journal oil pocket fuel feeding forms, two ports of the rod journal oil pocket are provided with inner small and outside big shoulder hole, oil is installed stifled at shoulder hole, oil, which blocks, opens up annular groove, annular groove installs zero shape rubber seal, and shoulder hole external port assembling jump ring makees axial limiting.The present invention has the advantage that：Using plunger radial sealing principle, band is formed, it is not necessary to special tooling, reduce assembly cost and assembly difficulty；Dismantle after the spacing jump ring in end face, radial seal plunger can be taken out from connecting rod neck oil pocket, connecting rod neck oil pocket is completely open, and the thorough cleaning operation of crankshaft oilway can be achieved.
Description
Technical field
It is close more particularly, to a kind of crank-shaft link neck oil pocket the invention belongs to crankshaft connecting rod lubrication structure-design technique field
Seal structure.
Background technology
In order to mitigate the rotation imbalance inertia mass of crankshaft crank, effectively improve deflection of crankshaft using material and reverse just
Degree, many highly-intensified diesel engine crank-shaft link necks are designed as hollow structure, when these lightening holes simultaneously as lubricant passage way one
Part is in use, need design sealing structure to prevent oil leakage.
At present, connecting rod neck oil pocket sealing mainly blocks up sealing structure using bowl-type, i.e., stamping forming steel bowl-type oil is stifled
Expand technique by rolling, form continuous sealing band at the rim of a bowl edge, realize the sealing to connecting rod neck oil pocket, this sealing structure is to song
The rotation imbalance inertia mass influence of axle crank is smaller, and sealed reliable.But this sealing structure has lacking in terms of two
Point：Special rolling expansion instrument is needed when the first, installing；2nd, after bent axle works with diesel engine, the deposit in lubricating oil remains in oil
In road, dismounting bowl-type oil is stifled directly to destroy sealing structure, cause crankshaft oilway cleaning operation inconvenient, to the work in diesel engine later stage
Make reliability and form potential danger.
The content of the invention
In view of this, the present invention is directed to propose a kind of crank-shaft link neck oil pocket sealing structure, realizes crank-shaft link neck oil
Chamber seals, simple in construction, easy installation and removal, and the thorough cleaning operation of crankshaft oilway can be achieved.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
A kind of crank-shaft link neck oil pocket sealing structure, including bent axle, oily stifled, zero shape rubber seal and jump ring, the song
Axle is provided with the oil circuit that lubricating oil is supplied from trunnion to rod journal, and the oil circuit is by rod journal oil pocket and two neighboring master
Axle journal forms to the oil duct of rod journal oil pocket fuel feeding, and two ports of the rod journal oil pocket are provided with inner small and outside big ladder
Hole, installation oil is stifled at shoulder hole, and oil, which blocks, opens up annular groove, and annular groove installs zero shape rubber seal, shoulder hole external port dress
Jump ring makees axial limiting.
Further, oil is blocked provided with screw.
Further, oil is stifled selects wrought aluminium material, is fit into 2 × 15 ° of chamferings of end processing.
Relative to prior art, the present invention has the advantage that：
(1) present invention utilizes plunger radial sealing principle, forms band, it is not necessary to special tooling, reduce and be assembled into
Sheet and assembly difficulty；
(2) after the present invention dismantles the spacing jump ring in end face, radial seal plunger can be taken out from connecting rod neck oil pocket, connecting rod neck
Oil pocket is completely open, and the thorough cleaning operation of crankshaft oilway can be achieved；
(3) when re-assemblying, zero shape rubber seal of aging need to be only changed, other parts can be continuing with, save into
This.
Brief description of the drawings
The accompanying drawing for forming the part of the present invention is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate to be used to explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the sectional view of crank-shaft link neck oil pocket sealing structure described in the embodiment of the present invention.
Description of reference numerals：
Bent axle 1, jump ring 2, stifled 3, the o shapes rubber seal 4 of oil, trunnion 5, rod journal 6, connecting rod neck oil pocket 7, oil duct 8,
Screw 9.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
A kind of crank-shaft link neck oil pocket sealing structure, as shown in figure 1, including bent axle 1, stifled 3, the zero shape rubber seal 4 of oil
With jump ring 2,
The bent axle 1 is provided with the oil circuit that lubricating oil is supplied from trunnion 5 to rod journal 6, and the oil circuit is by pitman shaft
The oil duct 8 of neck oil pocket 7 and two neighboring trunnion 5 to the fuel feeding of rod journal oil pocket 7 forms, and the two of the rod journal oil pocket 7
Individual port is provided with shoulder hole, and installation oil blocks up 3 at shoulder hole, annular groove is opened up on oil stifled 3, annular groove installs zero shape rubber seal
4, shoulder hole external port assembling jump ring 2 makees axial limiting, and the compression of zero shape rubber seal 4 forms radial seal band with shoulder hole, prevented
Only lubricating oil is revealed from the port of rod journal oil pocket 7, ensures bearing charge oil pressure.Oil is blocked provided with screw 9, convenient oil stifled 3
Taken out from shoulder hole.
The upper connecting rod neck oil pocket 7 of bent axle 1 is designed to inner small and outside big shoulder hole structure, inner side aperture end face and outside jump ring 2
The axial displacement of plunger rod that is made up of oil stifled 3 and zero shape rubber seal 4 of the two-way constraint in end face.
Jump ring 2 increases versatility from state's tender.
Oil stifled 3 selects wrought aluminium or other light materials, is fit into 2 × 15 ° of chamferings of end processing, M10 is set by port side
Screw, convenient for assembly and dismounting.
Zero shape rubber seal 4 selects oil resisting material.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God any modification, equivalent substitution and improvements made etc., should be included in the scope of the protection with principle.
Claims (3)
- A kind of 1. crank-shaft link neck oil pocket sealing structure, it is characterised in that：Including bent axle (1), oil stifled (3), zero shape rubber seal (4) and jump ring (2) are enclosed, the bent axle (1) is provided with the oil circuit that lubricating oil is supplied from trunnion (5) to rod journal (6), described The oil duct (8) of oil circuit from rod journal oil pocket (7) and two neighboring trunnion (5) to rod journal oil pocket (7) fuel feeding forms, institute The port for stating rod journal oil pocket (7) is provided with inner small and outside big shoulder hole, and installation oil is stifled (3) at shoulder hole, and oil opens up on stifled (3) Annular groove, annular groove install zero shape rubber seal (4), and shoulder hole external port assembling jump ring (2) makees axial limiting.
- 2. crank-shaft link neck oil pocket sealing structure according to claim 1, it is characterised in that：Oil stifled (3) is provided with screw (9)。
- 3. crank-shaft link neck oil pocket sealing structure according to claim 1, it is characterised in that：Oil stifled (3) selects wrought aluminium material Material, it is fit into 2 × 15 ° of chamferings of end processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710923437.6A CN107654481A (en) | 2017-09-30 | 2017-09-30 | A kind of crank-shaft link neck oil pocket sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710923437.6A CN107654481A (en) | 2017-09-30 | 2017-09-30 | A kind of crank-shaft link neck oil pocket sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107654481A true CN107654481A (en) | 2018-02-02 |
Family
ID=61116286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710923437.6A Pending CN107654481A (en) | 2017-09-30 | 2017-09-30 | A kind of crank-shaft link neck oil pocket sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107654481A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109454171A (en) * | 2018-12-04 | 2019-03-12 | 武汉重工铸锻有限责任公司 | Band card slot lightening hole aperture oil-sealing arrangement and oil sealing method |
| CN111963880A (en) * | 2020-08-07 | 2020-11-20 | 中国北方发动机研究所(天津) | Oil plug with self-sealing function |
| CN114352920A (en) * | 2021-12-15 | 2022-04-15 | 中国北方发动机研究所(天津) | Split type oil plug for hollow crankshaft |
| CN116201804A (en) * | 2023-01-18 | 2023-06-02 | 罡阳轴研科技(灌云)有限公司 | Motorcycle crankshaft with impact-resistant oil hole structure and processing technology thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19636147A1 (en) * | 1996-09-06 | 1998-03-12 | Mtu Friedrichshafen Gmbh | Crankshaft with lubricating oil channel |
| DE10038612C1 (en) * | 2000-08-08 | 2002-01-31 | Mtu Friedrichshafen Gmbh | Crankshaft has lubricating oil passage in journal and closed off at ends by sealing elements filling dead space of oil passage located radially outside flow connections |
| KR101380662B1 (en) * | 2011-06-13 | 2014-04-04 | 삼성중공업 주식회사 | Propulsion apparatus for ship and ship having the same |
| CN203730533U (en) * | 2014-01-21 | 2014-07-23 | 南通柴油机股份有限公司 | Whole crankshaft for V-type 16-cylinder diesel engine |
| JP2015075202A (en) * | 2013-10-10 | 2015-04-20 | 日本精工株式会社 | Toroidal-type continuously variable transmission |
| CN204784133U (en) * | 2015-08-07 | 2015-11-18 | 湖北佳业石油机械股份有限公司 | Plunger pump bent axle |
| CN105422346A (en) * | 2015-12-11 | 2016-03-23 | 中国北方发动机研究所(天津) | Plunger and barrel assembly for high-flow high-rotation speed rotor type high pressure common rail variable pump |
-
2017
- 2017-09-30 CN CN201710923437.6A patent/CN107654481A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19636147A1 (en) * | 1996-09-06 | 1998-03-12 | Mtu Friedrichshafen Gmbh | Crankshaft with lubricating oil channel |
| DE10038612C1 (en) * | 2000-08-08 | 2002-01-31 | Mtu Friedrichshafen Gmbh | Crankshaft has lubricating oil passage in journal and closed off at ends by sealing elements filling dead space of oil passage located radially outside flow connections |
| KR101380662B1 (en) * | 2011-06-13 | 2014-04-04 | 삼성중공업 주식회사 | Propulsion apparatus for ship and ship having the same |
| JP2015075202A (en) * | 2013-10-10 | 2015-04-20 | 日本精工株式会社 | Toroidal-type continuously variable transmission |
| CN203730533U (en) * | 2014-01-21 | 2014-07-23 | 南通柴油机股份有限公司 | Whole crankshaft for V-type 16-cylinder diesel engine |
| CN204784133U (en) * | 2015-08-07 | 2015-11-18 | 湖北佳业石油机械股份有限公司 | Plunger pump bent axle |
| CN105422346A (en) * | 2015-12-11 | 2016-03-23 | 中国北方发动机研究所(天津) | Plunger and barrel assembly for high-flow high-rotation speed rotor type high pressure common rail variable pump |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109454171A (en) * | 2018-12-04 | 2019-03-12 | 武汉重工铸锻有限责任公司 | Band card slot lightening hole aperture oil-sealing arrangement and oil sealing method |
| CN111963880A (en) * | 2020-08-07 | 2020-11-20 | 中国北方发动机研究所(天津) | Oil plug with self-sealing function |
| CN114352920A (en) * | 2021-12-15 | 2022-04-15 | 中国北方发动机研究所(天津) | Split type oil plug for hollow crankshaft |
| CN116201804A (en) * | 2023-01-18 | 2023-06-02 | 罡阳轴研科技(灌云)有限公司 | Motorcycle crankshaft with impact-resistant oil hole structure and processing technology thereof |
| CN116201804B (en) * | 2023-01-18 | 2024-01-30 | 罡阳轴研科技(灌云)有限公司 | Motorcycle crankshaft with impact-resistant oil hole structure and processing technology thereof |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180202 |
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| RJ01 | Rejection of invention patent application after publication |