CN104121058B - A kind of engine lubrication system and its oil channel sealing component - Google Patents
A kind of engine lubrication system and its oil channel sealing component Download PDFInfo
- Publication number
- CN104121058B CN104121058B CN201410327957.7A CN201410327957A CN104121058B CN 104121058 B CN104121058 B CN 104121058B CN 201410327957 A CN201410327957 A CN 201410327957A CN 104121058 B CN104121058 B CN 104121058B
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- tapered portion
- main oil
- straight thread
- sealing component
- channel sealing
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Abstract
The invention discloses a kind of engine lubrication system and its oil channel sealing components, the oil channel sealing component includes sealing plug, the sealing plug includes the threaded portion for offering outer straight thread, with the first tapered portion for being set to the threaded portion side, the inner face of the threaded portion most nearby has predetermined radial distance with the tube wall of branch oil duct；The inner wall of main oil gallery processing mouth offers the interior straight thread screwed togather with the outer straight thread, and the outer of main oil gallery processing mouth offers the second tapered portion extended out, and first tapered portion fits with second tapered portion.In this way, threaded portion avoids branch oil duct, the unimpeded of branch oil duct ensure that, ensure that the unimpeded of branch oil duct, and then ensure that the working performance of lubricating system.Meanwhile larger bolt power acts in the first tapered portion, generates larger sealed pressure, will produce interference fit as bolt screws between two tapered portion so that sealing is more reliable.
Description
Technical field
The present invention relates to field of engine lubrication technology more particularly to a kind of oil channel sealings for engine lubrication system
Component.The invention further relates to a kind of engine lubrication systems including above-mentioned oil channel sealing component.
Background technology
During the work time, machine oil is pumped into oil by the lubricating oil pump in engine lubrication system passes through cooling system to engine
System is cooled down and is filtered, and is eventually entered into main oil gallery and is supplied respectively to cylinder body and each lubricant passage way of cylinder cap, reaches and respectively transported to engine
It is lubricated between dynamic secondary and cooling purpose, ensure that safe and reliable operating under the conditions of engine good lubrication.Wherein, engine moistens
Main oil gallery plays the key player of machine oil section store and distribution in the cylinder body of sliding system, and engine oil pressure is very big in main oil gallery
It can be distributed with each position engine oil pressure of measured engine in degree, therefore it is also to pass to carry out the machining of main oil gallery and sealing
It is important.
Cylinder body main oil gallery is generally formed by machining at present, and since cylinder body main oil gallery is long, in machining process
Drill gun can not be drilled through from one side, need to prevent from piercing too deep the problems such as causing drill gun breaking eccentric, machine from one side to brill from both sides
The cylinder body main oil gallery both ends that processing is formed are required to be sealed by oil channel sealing component.
Referring to FIG. 1, Fig. 1 is the structural representation that a kind of typical oil channel sealing component is in assembled state in the prior art
Figure.
As shown in Figure 1, oil channel sealing component in the prior art is taper thread sealing plug, shape is machined on cylinder body 4
At main oil gallery 1 distal opening at offer conical internal thread, and by outside the taper of the conical internal thread and sealing plug 2
Screw thread screws togather realization sealing, to realize the sealing to main oil gallery 1 and branch oil duct 3.
But the sealing plug with taper thread need to be the requirement that standard component can meet sealing reliability, seal spiral shell
The length of plug is fixed, and sealing plug gos deep into that length is longer, can by the oil inlet part oil duct cross sectional occlusion of branch oil duct,
It causes branch oil duct fuel feeding unsmooth, influences the working performance of lubricating system；Simultaneously as to destroy partial threads close for branch oil duct
Cover causes sealing reliability to reduce.
Therefore, how in the case where ensureing seal request, oil channel sealing component is avoided to block branch oil duct, ensures branch
Oil duct it is unimpeded, to ensure the working performance of lubricating system, just become those skilled in the art's urgent need to resolve the problem of.
Invention content
The object of the present invention is to provide a kind of oil channel sealing components of engine lubrication system, pass through straight thread and taper
The composite structure of sealing surface, both ensure that sealing reliability, obstruction branch oil duct be in turn avoided, to ensure that branch oil duct
It is unimpeded, and then ensure that the working performance of lubricating system.Include above-mentioned oil channel sealing it is a further object of the present invention to provide one kind
The engine lubrication system of component.
To achieve the goals above, the present invention provides a kind of oil channel sealing component of engine lubrication system, including installation
In main oil gallery main oil gallery processing mouth in sealing plug, the sealing plug include offer the threaded portion of outer straight thread, and
It is set to first tapered portion of the threaded portion far from the main oil gallery side, inner face and the branch oil duct of the threaded portion
Tube wall most nearby has predetermined radial distance；The inner wall of main oil gallery processing mouth is offered to be screwed togather with the outer straight thread
Interior straight thread, and the outer of main oil gallery processing mouth offers the second tapered portion extended out, first tapered portion with it is described
Second tapered portion fits.
Preferably, the predetermined radial distance is 1mm.
Preferably, the conical surface length of first tapered portion is more than the conical surface length of second tapered portion.
Preferably, the length of second tapered portion is more than or equal to 1mm.
Preferably, the frustoconical bevel angle of first tapered portion is equal to the frustoconical bevel angle of second tapered portion.
The present invention also provides a kind of engine lubrication systems, including the main oil gallery and branch road binders being opened on engine cylinder body
Road, oil channel sealing component is equipped at the processing mouth of the main oil gallery, and the oil channel sealing component is engine as described above
Lubricating system.
Oil channel sealing component provided by the invention is used for engine lubrication system, which includes sealing spiral shell
Plug, which includes the first tapered portion for offering the threaded portion of outer straight thread, and being set to the threaded portion side, institute
That states the inner face of threaded portion and the tube wall of branch oil duct most nearby has predetermined radial distance；The inner wall of main oil gallery processing mouth is opened
Outer equipped with the interior straight thread screwed togather with the outer straight thread, and main oil gallery processing mouth offers the second taper extended out
Portion, first tapered portion fit with second tapered portion.
In seal process, threaded portion screws in main oil gallery by the cooperation of outer straight thread and interior straight thread and processes in mouth, and
In screwing operations, the first tapered portion is gradually pressed in the second tapered portion, and both another be affixed is bonded to interference fit, by outer
The field of conjugate action and the first tapered portion of straight thread and interior straight thread and the combination of the binding face of the second tapered portion form sealing surface；This
Sample can provide the bolt power of bigger due to the use of straight thread, therefore can shorten length of fit, the inner face of threaded portion
With the tube wall of branch oil duct most nearby with predetermined radial distance, threaded portion avoids branch oil duct, ensure that branch oil duct
It is unimpeded, ensure that the unimpeded of branch oil duct, and then ensure that the working performance of lubricating system.Meanwhile larger bolt masterpiece
With in the first tapered portion, larger sealed pressure is generated, interference fit is will produce as bolt screws between two tapered portion, makes
It must seal more reliable.
In a preferred embodiment, in oil channel sealing component provided by the present invention, the cone of the first tapered portion
Face length is more than the conical surface length of the second tapered portion, to improve the sealing performance of conical seal (contact) face.
In another preferred embodiment, in oil channel sealing component provided by the present invention, the first tapered portion
Frustoconical bevel angle is equal to the frustoconical bevel angle of the second tapered portion, so that the two is preferably bonded, gap is not present between the two, to protect
Sealing effect is demonstrate,proved.
Description of the drawings
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only one described in the present invention
A little embodiments, for those of ordinary skill in the art, other drawings may also be obtained based on these drawings.
Fig. 1 is the structural schematic diagram that a kind of typical oil channel sealing component is in assembled state in the prior art；
Fig. 2 is the structural schematic diagram that oil channel sealing component provided by the present invention is in assembled state；
Fig. 3 is the structural schematic diagram that main oil gallery processes at mouth in Fig. 2；
Fig. 4 is the structural schematic diagram of sealing plug in Fig. 2.
Reference sign：
In Fig. 1：
1- main oil gallery 2- sealing plug 3- branch oil duct 4- cylinder bodies
In Fig. 2 to Fig. 4：
20- sealing plug 21- threaded portion 22- the first tapered portion 23- branch oil duct 24- main oil gallerys process mouth
The cone of conical surface length the first tapered portion of H2- of 25- the second tapered portion 30- cylinder body 40- main oil gallerys the second tapered portion of H1-
The frustoconical bevel angle of the second tapered portion of frustoconical bevel angle a2- of face the first tapered portion of length a1-
Specific implementation mode
Core of the invention is to provide a kind of oil channel sealing component of engine lubrication system, passes through straight thread and taper
The composite structure of sealing surface, both ensure that sealing reliability, obstruction branch oil duct be in turn avoided, to ensure that branch oil duct
It is unimpeded, and then ensure that the working performance of lubricating system.It includes above-mentioned oil channel sealing that another core of the present invention, which is to provide a kind of,
The engine lubrication system of component.
In order to make those skilled in the art more fully understand technical scheme of the present invention, below in conjunction with attached drawing to this hair
It is bright to be further detailed.
It is the structural representation that oil channel sealing component provided by the present invention is in assembled state to please refer to Fig.2 to Fig. 4, Fig. 2
Figure；Fig. 3 is the structural schematic diagram that main oil gallery processes at mouth in Fig. 2；Fig. 4 is the structural schematic diagram of sealing plug in Fig. 2.
In a specific embodiment, oil channel sealing component provided by the invention is used for engine lubrication system, starts
Main oil gallery processing mouth 24 is offered on the main oil gallery 40 of machine cylinder body 30, which includes sealing plug 20, the sealing
Plug screw 20 includes offering the threaded portion 21 of outer straight thread, and be set to first of the threaded portion 21 far from 40 side of main oil gallery
Tapered portion 22, the inner face of the threaded portion 21 most nearby have predetermined radial distance with the tube wall of branch oil duct 23；Main oil
The inner wall of road processing mouth 24 offers the interior straight thread screwed togather with the outer straight thread, and the outer of main oil gallery processing mouth 24
The second tapered portion 25 extended out is offered, first tapered portion 22 fits with second tapered portion 25.
In seal process, threaded portion 21 screws in main oil gallery by the cooperation of outer straight thread and interior straight thread and processes mouth 24
It is interior, and in screwing operations, the first tapered portion 22 is gradually pressed in the second tapered portion 25, and both another be affixed is bonded to interference and matches
It closes, passes through the combination of the binding face of the field of conjugate action and the first tapered portion 22 and the second tapered portion 25 of outer straight thread and interior straight thread
Form sealing surface；In this way, the bolt power of bigger can be provided due to the use of straight thread, therefore length of fit can be shortened,
The inner face of threaded portion 21 most nearby has predetermined radial distance with the tube wall of branch oil duct 23, and threaded portion 21 avoids branch
Oil duct 23 ensure that the unimpeded of branch oil duct 23, ensure that the unimpeded of branch oil duct 23, and then ensure that the work of lubricating system
Performance.Meanwhile larger bolt power acts in the first tapered portion, generates larger sealed pressure, as bolt screws in two cones
It will produce interference fit between shape portion so that sealing is more reliable.
Specifically, the inner face of above-mentioned threaded portion 21 can with the predetermined radial distance most nearby of the tube wall of branch oil duct 23
Think 1mm, not only to ensure sealing performance, but also branch oil duct 23 can be avoided；It is apparent that above-mentioned preset distance is also not limited to
1mm as long as realizing above-mentioned guarantee sealing effect, and avoids the purpose of branch oil duct 23, which can be according to actually making
It is determined with operating mode, such as may be 2mm or 1.5mm etc..
Further, the conical surface length H2 of above-mentioned first tapered portion is more than the conical surface length H1 of the second tapered portion, to carry
The sealing performance of high conical seal (contact) face.In theory, the conical surface length H2 of above-mentioned first tapered portion can also be equal to second
The conical surface length H1 of tapered portion.
In order to ensure sealing reliability, the conical surface length H1 of second tapered portion is more than or equal to 1mm, such as can be with
Concrete numerical value for 2mm, 3mm etc., the conical surface length H1 of second tapered portion can be determined according to actual use situation, not made herein
It limits.The conical surface length H2 of first tapered portion is correspondingly greater than 1mm, and the conical surface length H1 of preferably slightly larger than the second tapered portion.
The frustoconical bevel angle a2 of above-mentioned first tapered portion is equal to the frustoconical bevel angle a1 of the second tapered portion, so that the two is preferably pasted
It closes, gap is not present between the two, to ensure that sealing effect.It is apparent that the frustoconical bevel angle a2 of the first tapered portion and second
The frustoconical bevel angle a1 of tapered portion can also slightly have difference, as long as can ensure the sealing reliability after fitting.
It should be pointed out that the ordinal numbers such as " first, second " described in text are to distinguish the different structure of same names,
Merely to description is convenient, does not indicate that certain sequence, more should not be construed as any restriction.
In addition to above-mentioned oil channel sealing component, the present invention also provides a kind of oil channel sealings including above-mentioned engine lubrication system
Component, refer to the prior art for other Each parts of the oil channel sealing component, and details are not described herein.
Above certain exemplary embodiments that the present invention is only described by way of explanation, undoubtedly, for ability
The those of ordinary skill in domain without departing from the spirit and scope of the present invention can be with a variety of different modes to institute
The embodiment of description is modified.Therefore, above-mentioned attached drawing and description are regarded as illustrative in nature, and should not be construed as to the present invention
The limitation of claims.
Claims (3)
1. a kind of oil channel sealing component of engine lubrication system, including it is installed on the main oil gallery processing mouth (24) of main oil gallery (40)
Interior sealing plug (20), which is characterized in that the sealing plug (20) include offer the threaded portion (21) of outer straight thread, and
Be set to the threaded portion (21) far from the main oil gallery (40) side the first tapered portion (22), the threaded portion (21) it is interior
End face most nearby has predetermined radial distance with the tube wall of branch oil duct (23)；The inner wall of the main oil gallery processing mouth (24) is opened
Outer equipped with the interior straight thread screwed togather with the outer straight thread, and main oil gallery processing mouth (24) offers second extended out
Tapered portion (25), first tapered portion (22) fit with second tapered portion (25)；
The conical surface length (H2) of first tapered portion is more than the conical surface length (H1) of second tapered portion；The intended radial
Distance is 1mm；The frustoconical bevel angle (a2) of first tapered portion is equal to the frustoconical bevel angle (a1) of second tapered portion.
2. the oil channel sealing component of engine lubrication system according to claim 1, which is characterized in that second taper
The conical surface length (H1) in portion is more than or equal to 1mm.
3. a kind of engine lubrication system, including the main oil gallery (40) and branch oil duct that are opened on engine cylinder body (30)
(23), oil channel sealing component is installed at main oil gallery processing mouth, which is characterized in that the oil channel sealing component is such as claim
The oil channel sealing component of engine lubrication system described in 1 or 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410327957.7A CN104121058B (en) | 2014-07-10 | 2014-07-10 | A kind of engine lubrication system and its oil channel sealing component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410327957.7A CN104121058B (en) | 2014-07-10 | 2014-07-10 | A kind of engine lubrication system and its oil channel sealing component |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104121058A CN104121058A (en) | 2014-10-29 |
| CN104121058B true CN104121058B (en) | 2018-07-20 |
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ID=51766659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410327957.7A Active CN104121058B (en) | 2014-07-10 | 2014-07-10 | A kind of engine lubrication system and its oil channel sealing component |
Country Status (1)
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| CN204060847U (en) * | 2014-07-10 | 2014-12-31 | 安徽江淮汽车股份有限公司 | A kind of engine lubrication system and oil channel sealing assembly thereof |
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| DE10140678A1 (en) * | 2001-08-24 | 2003-03-13 | Sew Eurodrive Gmbh & Co | Combined sealing plug and vibration sensor for sealing a drive sump or oil reservoir and for providing vibration measurements, whereby the sensor is mounted in the head of the sealing plug in a tapped hole |
| US20060153661A1 (en) * | 2002-12-16 | 2006-07-13 | Hartmut Flaig | Screw plug made of a metallic material, method for the production thereof, corresponding blank and corresponding tool |
| US20060078402A1 (en) * | 2004-04-06 | 2006-04-13 | Barnsdale Timothy J R | Fastener |
| US7357225B2 (en) * | 2004-08-05 | 2008-04-15 | Dorian George P | Two part oil or fluid drain plug with magnet |
| DE102006013373B4 (en) * | 2006-03-23 | 2013-07-04 | Bayerische Motoren Werke Aktiengesellschaft | Blanking plug for a thermostat housing of an internal combustion engine |
| DE102008004605A1 (en) * | 2008-01-16 | 2008-09-11 | Daimler Ag | Threaded insert for screwing into a blind hole of a component comprises an outer band having a constant outer diameter over its axial length and corresponding to or larger than the outer diameter of an outer thread |
| JP2010059929A (en) * | 2008-09-05 | 2010-03-18 | Yamaha Motor Co Ltd | Engine and motorcycle |
| CN201666194U (en) * | 2009-11-27 | 2010-12-08 | 重庆长安汽车股份有限公司 | VVT engine cylinder cover lubricating oil path |
| DE102010020078B8 (en) * | 2010-05-10 | 2015-09-03 | Günter Hommel | Threaded screw and method for producing a screw connection |
| CN201705482U (en) * | 2010-06-17 | 2011-01-12 | 重庆长安汽车股份有限公司 | Cylinder cover structure of variable valve timing engine |
| CN203685412U (en) * | 2014-02-28 | 2014-07-02 | 重庆秦安机电股份有限公司 | Sealing structure of oil duct port of cylinder head |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886583A (en) * | 2010-06-17 | 2010-11-17 | 重庆长安汽车股份有限公司 | Variable valve timing engine cylinder cover |
| CN103016695A (en) * | 2012-12-08 | 2013-04-03 | 江阴克威齿轮箱制造有限公司 | Screw plug sealing structure on decelerator casing |
| CN203430948U (en) * | 2013-08-14 | 2014-02-12 | 宁波恒力液压股份有限公司 | Cut-off type plug |
| CN204060847U (en) * | 2014-07-10 | 2014-12-31 | 安徽江淮汽车股份有限公司 | A kind of engine lubrication system and oil channel sealing assembly thereof |
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| Publication number | Publication date |
|---|---|
| CN104121058A (en) | 2014-10-29 |
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Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant before: Anhui Jianghuai Automotive Co., Ltd. |
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