CN205937437U - Engine crankshaft sealing member - Google Patents
Engine crankshaft sealing member Download PDFInfo
- Publication number
- CN205937437U CN205937437U CN201620933870.9U CN201620933870U CN205937437U CN 205937437 U CN205937437 U CN 205937437U CN 201620933870 U CN201620933870 U CN 201620933870U CN 205937437 U CN205937437 U CN 205937437U
- Authority
- CN
- China
- Prior art keywords
- engine crankshaft
- seat
- metallic sheath
- oil seal
- hole
- 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
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- Lubrication Of Internal Combustion Engines (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model provides an engine crankshaft sealing member. Not only the part is many for the current seal structure of main solution, and the assembly is troublesome, moreover the problem of sealed effect difference. Its characterized in that: the oil blanket seat is the loop configuration to adopt plastic materials, the primary seal piece adopts polytetrafluoroethylene to an organic whole is moulded plastics at oil blanket seat inner circle, oil blanket seat wherein integrative vulcanization of terminal surface of one end has the rubber seal area. Its advantage lies in oil blanket seat, primary seal piece, rubber seal area three formula structure as an organic whole, is formed and is compared by metal oil blanket seat, oil blanket, the sealed three independent part of paper gasket combination with current, and not only technology is simpler, and the cost is lower, and the structure of integral type makes oil blanket seat and primary seal piece concentricity better moreover, laminates more between oil blanket seat and the rubber seal area to improve sealed effect greatly.
Description
Technical field
The utility model is related to a kind of seal, specifically related to a kind of engine crankshaft seal.
Background technology
In the market, the seal at engine crankshaft position is generally only by metallic oil sealing seat, oil sealing, sealing paper washer three
Oil sealing is pressed into the inner ring of metallic oil sealing seat by vertical part composition during installation, sealing paper washer is then directly against being placed on metallic oil sealing seat
End face be screwed into oil seal seat by bolt and produce pressure and make oil seal seat and sealing gasket keep being adjacent to sealing, assembling is not only installed number
Tired, and the sealing effectiveness of so assembling is poor, oil leak situation easily.
Utility model content
In order to overcome the shortcomings of background technology, the utility model provides a kind of engine crankshaft seal, solves existing
Not only part is many for sealing structure, assembling trouble, and the problem of sealing effectiveness difference.
The technical scheme that the utility model is adopted：A kind of engine crankshaft seal, including oil seal seat, primary seal,
Described oil seal seat ringwise structure, and adopt plastic material, described primary seal adopts polytetrafluoroethylene (PTFE), and integrated injection molding is in oil
Envelope seat inner ring；The end face integrated vulcanizing of described oil seal seat wherein one end has rubber seal tape.
It is additionally provided with secondary sealing part, described secondary sealing part is Polyester Fibers, is bonded in oil seal seat inner ring.
On described oil seal seat, circumference is uniformly provided with some first through holes, is provided with the first metallic sheath in described first through hole.
It is recessed with first annular positioning that described first metallic sheath outer ring is provided with some the first axially spaced apart conjunction gears
Groove, described first through hole inwall is provided with the first positioning tooth and corresponding with first annular detent with the first conjunction gear cooperation
First annular positioning boss.
Described first metallic sheath can also be to be provided with some stamped recess in outer surface.
Described first through hole, the first metallic sheath are equipped with 7.
2 the second through holes being centrosymmetrically arranged are additionally provided with described oil seal seat, in described second through hole, are provided with the second gold medal
Belong to set, described second metallic sheath inwall is provided with helicitic texture.
It is recessed with the second circular orientation that described second metallic sheath outer ring is provided with some the second axially spaced apart conjunction gears
Groove, described second through-hole wall is provided with the second positioning tooth and corresponding with the second circular orientation groove with the second conjunction gear cooperation
The second circular orientation boss.
2 positioning guide holes being centrosymmetrically arranged are additionally provided with described oil seal seat.
Described oil sealing seating face is provided with some reinforcements.
The beneficial effects of the utility model are：Using above scheme, oil seal seat, primary seal, rubber seal tape three are
Integral structure, with existing by metallic oil sealing seat, oil sealing, sealing three independent part combination of paper washer form compared with, not only work
Skill is simpler, and cost is lower, and the structure of integral type makes oil seal seat and primary seal concentricity more preferably, oil seal seat and rubber
More fit between glue band, thus greatly improving sealing effectiveness.
Brief description
Fig. 1 is the structural representation of the utility model embodiment engine crankshaft seal.
Fig. 2 is the structural representation of another angle of the utility model embodiment engine crankshaft seal.
Fig. 3 is the structural representation of the utility model embodiment one first metallic sheath.
Fig. 4 is the structural representation of the utility model embodiment one second metallic sheath.
Fig. 5 is the knot after the utility model embodiment engine crankshaft seal removes the first metallic sheath and the second metallic sheath
Structure schematic diagram.
Enlarged diagram at A in Fig. 6 Fig. 5.
Fig. 7 is the structural representation of the utility model embodiment 2 first metallic sheath.
Fig. 8 is the structural representation of the utility model embodiment 3 first metallic sheath.
Fig. 9 is the structural representation of the utility model embodiment 2 second metallic sheath.
Figure 10 is the structural representation of the utility model embodiment 3 second metallic sheath.
Figure 11 is the structural representation of the utility model example IV second metallic sheath.
In figure 1- oil seal seat, 2- primary seal, 3- rubber seal tape, 4- secondary sealing part, 5- first through hole, 51- first is fixed
Position tooth, the first annular positioning boss of 52-, 6- first metallic sheath, 61- first conjunction gear, the first annular detent of 62-, 7- the
Two through holes, 71- second positioning tooth, 72- the second circular orientation boss, 8- second metallic sheath, 81- second conjunction gear, 82- second ring
Shape detent, 9- positioning guide hole, 10- reinforcement.
Specific embodiment
Below in conjunction with the accompanying drawings the utility model embodiment is described further：
As illustrated, a kind of engine crankshaft seal, including oil seal seat 1, primary seal 2, described oil seal seat 1 is ringwise
Structure, and adopt plastic material, described primary seal 2 adopts polytetrafluoroethylene (PTFE), and integrated injection molding is in oil seal seat 1 inner ring；Described
The end face integrated vulcanizing of oil seal seat 1 wherein one end has rubber seal tape 3.
Oil seal seat 1, primary seal 2, rubber seal tape 3 three are integral type structure, with existing by metallic oil sealing seat, oil
Envelope, sealing three independent part combination of paper washer form and compare, and not only technique is simpler, and cost is lower, and integral type
Structure makes oil seal seat with primary seal concentricity more preferably, more fits, thus significantly carrying between oil seal seat and rubber seal tape
High sealing effect.
As illustrated, being additionally provided with secondary sealing part 4, described secondary sealing part 4 is Polyester Fibers, is bonded in oil seal seat 1
Circle, secondary sealing part 4 is combined with primary seal 2, improves sealing effectiveness further.
As illustrated, circumference is uniformly provided with 7 first through holes 5 on described oil seal seat 1, in described first through hole 5, it is provided with
One metallic sheath 6, first through hole 5, the first metallic sheath 6 fitted bolt can be arranged on engine cylinder-body, by arranging the first gold medal
Belong to set 6 and simultaneously born the power being subject to during installation by it, compensate for the not high problem of oil seal seat intensity of plastic material itself it is ensured that
Oil seal seat can effectively be fixed on engine cylinder-body, will not deform.
Before oil seal seat 1 injection, the first metallic sheath 6 is put in mould, will be direct for the first metallic sheath 6 by injection step
, in the first through hole 5 of oil seal seat, processing is convenient, fixed for integrated injection molding.Due to adopting injection moulding integrated molding, oil sealing
The structure corresponding with the first metallic sheath 6 can be formed in the first through hole 5 of seat 1.
The structure of the first metallic sheath 6 can be as shown in fig. 7, cover shape for conventional annulus, and structure is simple, low cost,
Can be as shown in figure 3, its outer ring be provided with the first conjunction gear 61 and first annular detent 62, oil seal seat 1 and the first metal
After covering 6 integrated injection moldings, then can be formed with its first through hole 5 with the first conjunction gear 61 cooperation the first positioning tooth 51 and
First annular positioning boss 52 corresponding with first annular detent 62, is engaged with the first conjunction gear 61 by the first positioning tooth 51
Realize circumference spacing, axial limiting is realized with first annular detent 62 by first annular positioning boss 52, can be more preferable
Realize good limit effect, fixation.
It is of course also possible to arrange boss in the outer ring of the first metallic sheath 6, first through hole 5 inwall arranges groove.
The structure of described first metallic sheath 6 can also be corresponding as shown in figure 8, its outer surface is provided with some stamped recess 63
, after oil seal seat 1 and the first metallic sheath 6 integrated injection molding, then can be formed with its first through hole 5 and fit with stamped recess 63
The protrusion joined, can not only realize positioning by stamped recess 63 and the structure protruded, and make fixing more firm, and with respect to the
The structure of one conjunction gear 61, can make structure simpler using stamped recess 63, convenient processing.
As illustrated, 2 the second through holes 7 being centrosymmetrically arranged, described second through hole 7 are additionally provided with described oil seal seat 1
Inside it is provided with the second metallic sheath 8, described second metallic sheath 8 inwall is provided with helicitic texture, the second through hole 7, tapped second gold medal
Genus set 8 fitted bolts can facilitate to be dismantled to oil seal seat 1, likewise, bearing dismounting by arranging the first metallic sheath 8 by it
When the power that is subject to, the not high problem of oil seal seat itself intensity that compensate for plastic material is it is ensured that oil seal seat can effectively be carried out
Dismounting, will not deform.
Before oil seal seat 1 injection, equally the second metallic sheath 8 is put in mould, by injection step by the second metallic sheath 8
Directly, in the second through hole 7 of oil seal seat, processing is convenient, fixed for integrated injection molding.Due to adopting injection moulding integrated molding,
The structure corresponding with the second metallic sheath 8 can be formed in second through hole 7 of oil seal seat 1.
Second metallic sheath 8 can be as shown in figure 4, its outer ring be provided with the second conjunction gear 81 and the second circular orientation groove
82, after oil seal seat 1 and the second metallic sheath 8 integrated injection molding, then can be formed with its second through hole 7 and join with the second conjunction gear 81
Close the second positioning tooth 71 and with the corresponding second circular orientation boss 72 of the second circular orientation groove 82, by the second positioning tooth
71 engage realization circumference with the second conjunction gear 81 spacing, by the second circular orientation boss 72 and the second circular orientation groove 82 reality
Existing axial limiting, can preferably realize good limit effect, fixation.
It is of course also possible to arrange boss in the outer ring of the second metallic sheath 8, groove is set in the second through hole 7 inwall.
The structure of described second metallic sheath 8 can be as shown in figure 9, be conventional hex nut structure, and structure is simple；Described
The structure of the second metallic sheath 8 can also be as shown in Figure 10, and its outer ring arranges full groove；The structure of described second metallic sheath 8 also may be used
With as shown in figure 11, axial two ends setting the second conjunction gear 81, interlude arranges the second circular orientation groove 82.
The height of the second metallic sheath 8 can be only the general of the second through hole 7 length, hanging is up and down arranged on the second through hole
In 7, so more material-saving, cost is lower, and weight is lighter.
In addition, it is also possible to be not provided with the second gold medal in the case of meeting the oil seal seat that can dismantle self by other modes
Belong to set 8, further material-saving.
As illustrated, being additionally provided with 2 positioning guide holes being centrosymmetrically arranged 9 on described oil seal seat 1, by positioning and guiding
Hole 9 can accurately and conveniently be installed on engine cylinder-body, and effect is more preferable.
As illustrated, described oil seal seat 1 surface is provided with some reinforcements 10, strengthen the intensity of oil seal seat 1 further, improve
Its stability is it is ensured that sealing effectiveness.
Embodiment is not construed as the restriction to utility model, but any based on of the present utility model spirit improvements introduced,
All should be within protection domain of the present utility model.
Claims (10)
1. a kind of engine crankshaft seal, including oil seal seat（1）, primary seal（2）It is characterised in that：Described oil seal seat（1）
Ringwise structure, and adopt plastic material, described primary seal（2）Using polytetrafluoroethylene (PTFE), and integrated injection molding is in oil seal seat（1）
Inner ring；Described oil seal seat（1）The end face integrated vulcanizing of wherein one end has rubber seal tape（3）.
2. engine crankshaft seal according to claim 1 it is characterised in that：It is additionally provided with secondary sealing part（4）, described pair
Seal（4）For Polyester Fibers, it is bonded in oil seal seat（1）Inner ring.
3. engine crankshaft seal according to claim 1 it is characterised in that：Described oil seal seat（1）Upper circumference is uniformly
It is provided with some first through holes（5）, described first through hole（5）Inside it is provided with the first metallic sheath（6）.
4. engine crankshaft seal according to claim 3 it is characterised in that：Described first metallic sheath（6）Outer ring sets
There are some the first axially spaced apart conjunction gears（61）With first annular detent（62）, described first through hole（5）Interior
Wall is provided with and the first conjunction gear（61）First positioning tooth of cooperation（51）And with first annular detent（62）Corresponding
One circular orientation boss（52）.
5. engine crankshaft seal according to claim 3 it is characterised in that：Described first metallic sheath（6）Outer surface
It is provided with some stamped recess（63）.
6. the engine crankshaft seal according to claim 3 or 4 or 5 it is characterised in that：Described first through hole（5）,
One metallic sheath（6）It is equipped with 7.
7. engine crankshaft seal according to claim 1 it is characterised in that：Described oil seal seat（1）On be additionally provided with 2
The second through hole being centrosymmetrically arranged（7）, described second through hole（7）Inside it is provided with the second metallic sheath（8）, described second metallic sheath
（8）Inwall is provided with helicitic texture.
8. engine crankshaft seal according to claim 7 it is characterised in that：Described second metallic sheath（8）Outer ring sets
There are some the second axially spaced apart conjunction gears（81）With the second circular orientation groove（82）, described second through hole（7）Interior
Wall is provided with and the second conjunction gear（81）Second positioning tooth of cooperation（71）And with the second circular orientation groove（82）Corresponding
Second ring positioning boss（72）.
9. engine crankshaft seal according to claim 1 it is characterised in that：Described oil seal seat（1）On be additionally provided with 2
The positioning guide hole being centrosymmetrically arranged（9）.
10. engine crankshaft seal according to claim 1 it is characterised in that：Described oil seal seat（1）If surface is provided with
Dry reinforcement（10）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620933870.9U CN205937437U (en) | 2016-08-25 | 2016-08-25 | Engine crankshaft sealing member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620933870.9U CN205937437U (en) | 2016-08-25 | 2016-08-25 | Engine crankshaft sealing member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205937437U true CN205937437U (en) | 2017-02-08 |
Family
ID=57951956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620933870.9U Expired - Fee Related CN205937437U (en) | 2016-08-25 | 2016-08-25 | Engine crankshaft sealing member |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205937437U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112412652A (en) * | 2020-10-15 | 2021-02-26 | 青岛宇远新材料有限公司 | Semi-solid cast aluminum oil seal seat |
-
2016
- 2016-08-25 CN CN201620933870.9U patent/CN205937437U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112412652A (en) * | 2020-10-15 | 2021-02-26 | 青岛宇远新材料有限公司 | Semi-solid cast aluminum oil seal seat |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170208 Termination date: 20210825 |