CN201367950Y - Structure for crankshaft oil seal of automobile engine - Google Patents
Structure for crankshaft oil seal of automobile engine Download PDFInfo
- Publication number
- CN201367950Y CN201367950Y CNU2008202153694U CN200820215369U CN201367950Y CN 201367950 Y CN201367950 Y CN 201367950Y CN U2008202153694 U CNU2008202153694 U CN U2008202153694U CN 200820215369 U CN200820215369 U CN 200820215369U CN 201367950 Y CN201367950 Y CN 201367950Y
- Authority
- CN
- China
- Prior art keywords
- oil seal
- oil sealing
- oil
- automobile engine
- annular groove
- 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 - Fee Related
Links
- 238000007789 sealing Methods 0.000 claims abstract description 79
- 239000002184 metal Substances 0.000 claims description 20
- 229920001971 elastomer Polymers 0.000 claims description 14
- 238000005452 bending Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 2
- 238000005299 abrasion Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 80
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 6
- 229910052731 fluorine Inorganic materials 0.000 description 6
- 239000011737 fluorine Substances 0.000 description 6
- 239000000314 lubricant Substances 0.000 description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 229920001973 fluoroelastomer Polymers 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Images
Abstract
The utility model provides a structure for the crankshaft oil seal of an automobile engine, which comprises an oil seal body (1) and is characterized in that the oil seal body (1) is of a cylindrical structure; a metallic framework (2) is added in the interior of the oil seal body (1), one or a plurality of ring-shaped grooves (5) is/ are added on an outside oil seal ring (6) along the outside surface of the outside oil seal ring (6) , and a sunk ring-shaped oil seal outside groove is arranged on one end of the outside of the cylinder body of the oil seal body (1). The structure has the advantages that the damaged tolerance is improved, the abrasion on a shaft is small, the quality requirements of the surface of the shaft is properly reduced, and the sealing effect and the service life of the oil seal are improved simultaneously; in addition, a lipped position is not easily damaged, and restorability is strong after deformation; installation is conveniently carried out, thereby effectively reducing the steep demand of installing the oil seal.
Description
Technical field
The utility model relates to the automotive engine lubrication system, and more particularly, the utility model relates to a kind of automobile engine crankshaft oil seal structure.
Background technique
The automobile engine crankshaft oil sealing, identical with common dynamic rotary oil seal sealing mechanism, its surface of contact is to support by very thin lubricant film, and the trend of sucked back oily side is arranged once more owing to pump oil effectiveness to the lubricant oil of air side from an effluent of crankcase oils.Its reason can be thought to have reduced static pressure because axle rotation lubricant oil has taken place to the flowing of oily side by its dynamic pressure, realizes sealing whereby.The oil sealing that we touch usually roughly is divided into traditional fluorine rubber oil sealing and PTFE oil sealing two big classes.Traditional fluorine rubber oil sealing is by a circular metal skeleton, surface parcel rubber is made, play seal action by spring ring locking rubber, the oil sealing of this structure adopts the mode of linear sealing, hardness is low, easy damaged, distortion back recovery capability are not strong, but the rubber mill loss rate is higher, also big to the wearing and tearing of axle, to the requirement height of temperature and oil product, can't satisfy current oil product Environmental Conditions, working life is lower.And present most popular PTFE oil sealing is no spring ring design, adopt the mode of face seal, the serviceability temperature scope is wide, can satisfy current oil product Environmental Conditions, but its material hardness height, inside because of its seal lip, need fixing tool during installation, and easy damaged, distortion back recovery capability are relatively poor, big to the wearing and tearing of axle, working life is still lower.
The model utility content
Technical problem to be solved in the utility model is: at the structural imperfection of existing automobile engine crankshaft oil seal structure, provide a kind of sealing effect to improve, the tolerance that damages is improved, simultaneously both make assembling more convenient, also satisfied the automobile engine crankshaft oil seal structure of the special pressure-bearing surface structure of engine crankshaft oil sealing.
For solving above technical problem, the technical solution adopted in the utility model is:
The utility model is a kind of automobile engine crankshaft oil seal structure, comprise the oil sealing body, it is characterized in that: described oil sealing body is set to cylindrical structure, set up metal frame in described oil sealing body interior, set up one or multi-channel annular groove in described oil sealing outer ring along oil sealing outer ring outer surface, the end outside the cylinder body of described oil sealing body is provided with recessed oil sealing inner annular groove.
Described metal frame comprises skeleton body and skeleton hook portion, and described metal frame is set to the inner structure that is provided with around a circle along the oil sealing outer ring, and the skeleton hook portion to the hook formation of crankshaft direction bending is set.
The described skeleton body that is arranged on the metal frame of inside, oil sealing outer ring is set to the structure that is arranged in parallel with surface, oil sealing outer ring.
Described skeleton hook portion is set to the structure to the crankshaft direction bending along oil sealing inner annular groove internal surface inboard.
Described annular groove is set to the 2-4 road being provided with along oil sealing outer ring outer surface.
The groove protruding block is set on described annular groove.
The oil seal lip of described rubber material is set to from the structure of oil sealing inner annular groove to the extension of the cylinder body outside.
Advantage of the present utility model is:
Combine the advantage of traditional fluorine rubber oil sealing and PTFE oil sealing, adopt the structure of no spring ring, the face seal mode, thereby insensitive to the damage on the axle surface in sealing surface zone or oil sealing surface, i.e. tolerance raising to damaging; High-strength sealability can allow the deviation of beating of bigger coaxiality deviation of hole and between centers and axle; Its seal face materials hardness is low, wearing and tearing to axle are very little, make a surface quality require and suitably to reduce, can not carry out the surface hardening of axle handles, and because the sealing surface friction is less, make lubricant oil reduce because of the carbon distribution that friction high temperature produces at sealing area, and the working life of also having improved oil sealing when sealing effect is improved; Lip place easy damaged not in addition, the strong advantage of distortion back recovery capability, and easy to assembly has effectively reduced the requirement of harshness when oil sealing is installed.
Description of drawings
Make briefly bright to each width of cloth accompanying drawing of this specification expressed content and the mark among the figure below: Fig. 1 is the cross-sectional view of a kind of automobile engine crankshaft oil seal structure described in the utility model;
The structural representation that Fig. 2 is looked from the cylinder body outside for crank shaft oil seal structure of the present utility model;
Be labeled as among the figure: 1, oil sealing body; 2, metal frame; 3, skeleton body; 4, skeleton hook portion; 5, annular groove; 6, oil sealing outer ring; 7, oil sealing inner annular groove; 8, oil seal lip; 9, groove protruding block; 10, oil sealing inner annular groove internal surface;
A, crankcase side; B, the cylinder body outside; C, bent axle;
Embodiment
Contrast accompanying drawing below, by description, the effect of the mutual alignment between the shape of embodiment of the present utility model such as related each member, structure, the each several part and annexation, each several part and working principle etc. are described in further detail embodiment:
As shown in Figure 1 and Figure 2, the utility model is a kind of automobile engine crankshaft oil seal structure, comprise oil sealing body 1, described oil sealing body 1 is set to cylindrical structure, set up metal frame 2 in described oil sealing body 1 inside, set up one or multi-channel annular groove 5 in described oil sealing outer ring 6 along oil sealing outer ring 6 outer surfaces, the end of B is provided with recessed oil sealing inner annular groove 7 outside the cylinder body of described oil sealing body 1.
Described metal frame 2 comprises skeleton body 3 and skeleton hook portion 4, and described metal frame 2 is set to the 6 inner structures that are provided with around a circle along the oil sealing outer ring, and the skeleton hook portion 4 to the hook formation of crankshaft direction A bending is set.
The described skeleton body 3 that is arranged on the metal frame 2 of 6 inside, oil sealing outer ring is set to the structure that is arranged in parallel with 6 surfaces, oil sealing outer ring.
Described skeleton hook portion 4 is set to the structure to crankshaft direction A bending along oil sealing inner annular groove internal surface 10 inboards.
Described annular groove 5 is set to the 2-4 road in the 6 outer surface settings along the oil sealing outer ring.
On described annular groove 5, groove protruding block 9 is set.
The oil seal lip 8 of described rubber material is set to from the structure of oil sealing inner annular groove 7 to the B extension of the cylinder body outside.
The utility model is by the oil sealing of a kind of modification of metal frame 2 supports, can omit coil structures.The metal frame 2 of oil sealing outer ring 6 provides the coordinate force of whole oil sealing body 1 at motor cavity internal fixation, the fluororubber layer in metal frame 2 outsides has guaranteed combining closely of oil sealing outer ring 6 and motor cavity, has prevented the leakage of machine oil and the intrusion of other impurity.
The utility model is these characteristics of little negative pressure according to common automobile engine crankshaft case pressure, adopts the oil seal lip 8 of rubber material to be set to from the structure of oil sealing inner annular groove 7 to the B extension of the cylinder body outside.So both make assembling more convenient, also satisfied the special pressure-bearing surface structure of engine crankshaft oil sealing.When oil sealing leans on the pressure of air side to act on the rubber oil sea lip 8, make the sealability of oil seal lip 8 obtain reinforcement, oil seal lip 8 fits tightly with axle, has played fluid-encapsulated effect.
Increase the metal frame 2 of an annular in the oil sealing body 1 of the present utility model, the surface of metal frame 2 coats a kind of extraordinary fluorine rubber of low friction of modification and forms oil sealing outer ring 6.The effect of the common sealing of plurality of sealing lines is played in the oil sealing outer ring 6 of fluorine rubber.Along the structure of metal frame 2, fluorine rubber oil seal lip 8 extends to cylinder body outside B from oil sealing inner annular groove 7.
Oil leakage phenomenon appears in annular groove 5 during for fear of static state, is provided with little groove protruding block 9 in thread groove leans on the nearer annular groove 5 of lip, to reach the purpose of static sealing.
In conjunction with the accompanying drawings the utility model has been carried out exemplary description above; obviously the concrete realization of the utility model is not subjected to the restriction of aforesaid way; as long as the various improvement of having adopted method design of the present utility model and technological scheme to carry out; or design of the present utility model and technological scheme are directly applied to other occasions without improving, all in protection domain of the present utility model.
Claims (7)
1, a kind of automobile engine crankshaft oil seal structure, comprise oil sealing body (1), it is characterized in that: described oil sealing body (1) is set to cylindrical structure, set up metal frame (2) in described oil sealing body (1) inside, set up one or multi-channel annular groove (5) in described oil sealing outer ring (6) along oil sealing outer ring (6) outer surface, an end of (B) is provided with recessed oil sealing inner annular groove (7) outside the cylinder body of described oil sealing body (1).
2, a kind of automobile engine crankshaft oil seal structure according to claim 1, it is characterized in that: described metal frame (2) comprises skeleton body (3) and skeleton hook portion (4), described metal frame (2) is set to along oil sealing outer ring (6) the inner structure that is provided with around a circle, and the skeleton hook portion (4) to the hook formation of crankshaft direction (A) bending is set.
3, a kind of automobile engine crankshaft oil seal structure according to claim 1 and 2 is characterized in that: the described skeleton body (3) that is arranged on the inner metal frame (2) in oil sealing outer ring (6) is set to the structure that is arranged in parallel with surface, oil sealing outer ring (6).
4, a kind of automobile engine crankshaft oil seal structure according to claim 2 is characterized in that: described skeleton hook portion (4) is set to the structure to crankshaft direction (A) bending along oil sealing inner annular groove internal surface (10) inboard.
5, a kind of automobile engine crankshaft oil seal structure according to claim 1, it is characterized in that: described annular groove (5) is set to the 2-4 road along oil sealing outer ring (6) outer surface setting.
6, a kind of according to claim 1 or 5 automobile engine crankshaft oil seal structure is characterized in that: groove protruding block (9) is set on described annular groove (5).
7, a kind of according to claim 1 or 5 automobile engine crankshaft oil seal structure is characterized in that: the oil seal lip of described rubber material (8) is set to from the structure of oil sealing inner annular groove (7) to the cylinder body outside (B) extension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202153694U CN201367950Y (en) | 2008-11-27 | 2008-11-27 | Structure for crankshaft oil seal of automobile engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202153694U CN201367950Y (en) | 2008-11-27 | 2008-11-27 | Structure for crankshaft oil seal of automobile engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201367950Y true CN201367950Y (en) | 2009-12-23 |
Family
ID=41486843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202153694U Expired - Fee Related CN201367950Y (en) | 2008-11-27 | 2008-11-27 | Structure for crankshaft oil seal of automobile engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201367950Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925367A (en) * | 2014-05-04 | 2014-07-16 | 董波 | Crankshaft oil seal |
| CN103993977A (en) * | 2014-06-08 | 2014-08-20 | 彭常龙 | Sedan engine air filter sealing ring |
| CN104655414A (en) * | 2015-02-02 | 2015-05-27 | 奇瑞汽车股份有限公司 | Crankshaft front oil seal test tooling |
-
2008
- 2008-11-27 CN CNU2008202153694U patent/CN201367950Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925367A (en) * | 2014-05-04 | 2014-07-16 | 董波 | Crankshaft oil seal |
| CN103993977A (en) * | 2014-06-08 | 2014-08-20 | 彭常龙 | Sedan engine air filter sealing ring |
| CN104655414A (en) * | 2015-02-02 | 2015-05-27 | 奇瑞汽车股份有限公司 | Crankshaft front oil seal test tooling |
| CN104655414B (en) * | 2015-02-02 | 2017-03-29 | 奇瑞汽车股份有限公司 | A kind of crankshaft front oil seal-mounting test tool |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103459902A (en) | Sealing device | |
| CN201367950Y (en) | Structure for crankshaft oil seal of automobile engine | |
| CN202215736U (en) | Sealing structure for traveling gearbox of railway vehicle | |
| CN102654163A (en) | Rolling bearing, throttle valve device and abs device | |
| CN203051766U (en) | Floating oil seal component and mechanical device with same | |
| CN204784290U (en) | Piston structure | |
| CN104379928B (en) | High-pressure pump for fuel injection system | |
| CN102770678A (en) | Device comprising a ring cylinder and a ring piston | |
| CN103807299A (en) | Lubricating structure of thrust plate of engine crankshaft | |
| CN203926390U (en) | A kind of roller bearing | |
| CN203488554U (en) | Bearing bush and engine with same | |
| CN102506178B (en) | Mechanical sealing part | |
| CN202228361U (en) | Rolling rotor type compressor | |
| CN101240817A (en) | Bearing sealed ring possessing axial clearance compensation function | |
| CN203223467U (en) | Automobile transmission shaft hanger supporting bearing | |
| CN205371630U (en) | Oil seal | |
| CN210370928U (en) | Combined piston assembly | |
| CN104340237A (en) | Railway axlebox assembly and railway axlebox including the same | |
| CN215634980U (en) | Framework oil seal for valve of engine combustion chamber | |
| CN203836161U (en) | Flange and seal assembly used for vehicle drive axle reducer | |
| CN213016474U (en) | Camshaft bush mounting structure | |
| CN202215390U (en) | Piston for automobile engine | |
| CN214424590U (en) | Cylinder sleeve convenient for piston installation | |
| CN201627832U (en) | Wing-shaped cross-shaped universal joint for automobile | |
| CN204402794U (en) | air compressor piston assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091223 Termination date: 20131127 |