CN103670562B - A kind of rocker arm bonnet and the engine with the rocker arm bonnet - Google Patents
A kind of rocker arm bonnet and the engine with the rocker arm bonnet Download PDFInfo
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- CN103670562B CN103670562B CN201310553356.3A CN201310553356A CN103670562B CN 103670562 B CN103670562 B CN 103670562B CN 201310553356 A CN201310553356 A CN 201310553356A CN 103670562 B CN103670562 B CN 103670562B
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- rocker arm
- arm bonnet
- bolt
- lower cover
- bonnet
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Abstract
The invention discloses a kind of rocker arm bonnet, the cylinder head of engine is installed on, including：Lid and the rocker arm bonnet lower cover are detachably connected on lid and the rocker arm bonnet lower cover fixed with the cylinder head, the rocker arm bonnet on rocker arm bonnet；The rocker arm bonnet lower cover, which is provided with, is provided from the through hole that the outside pipeline entered inside the rocker arm bonnet runs through.By carrying out split type design to rocker arm bonnet, staff can be easy to dismantle and install rocker arm bonnet, working strength is reduced；Meanwhile, through hole is set in rocker arm bonnet lower cover, the function of rocker arm bonnet is enhanced, is conducive to the installation of external pipeline, the performance of engine is improved.The present invention also provides a kind of engine with the rocker arm bonnet.
Description
Technical field
The present invention relates to technical field of engines, more particularly to a kind of rocker arm bonnet.Moreover, it relates to a kind of tool
There is the engine of above-mentioned rocker arm bonnet.
Background technology
Rocker arm bonnet is applied on cylinder, is one of important component of engine.Rocker arm bonnet can not only play covering
The effect of cylinder head, the also effect with blanket gas cylinder cap.
At present, it is a kind of monoblock type rocker arm bonnet to be covered wide variety of in cylinder.Needing to adjust valve clearance
Or, it is necessary to which whole rocker arm bonnet is disassembled when being safeguarded to the part inside rocker arm bonnet.
There are following technical problems in the monoblock type rocker arm bonnet：
Firstth, in disassembly process, staff needs to dismantle and install whole thick and heavy rocker arm bonnet, and working strength is larger.
Secondth, the function of rocker arm bonnet is relatively limited, needs to set some external pipelines inside rocker arm bonnet or in cylinder head
When, rocker arm bonnet limits the installation of pipeline, have impact on the performance optimization of engine.
In view of this, it would be highly desirable to which the defect for existing monoblock type rocker arm bonnet is designed shaking there is provided a kind of convenient disassembly
Arm cover.
The content of the invention
For drawbacks described above, it is an object of the invention to provide a kind of rocker arm bonnet, using such a rocker arm bonnet, staff can
Simply, quickly and easily it is dismantled and installed, reduce the working strength of operating personnel.On this basis, the present invention is gone back
A kind of engine with the rocker arm bonnet is provided.
The rocker arm bonnet that the present invention is provided, including lid and the rocker arm bonnet lower cover fixed with the cylinder head on rocker arm bonnet, it is described
Lid and the rocker arm bonnet lower cover are to be detachably connected on rocker arm bonnet；The rocker arm bonnet lower cover, which is provided with, to be provided from shaking described in outside enter
The through hole that pipeline inside arm cover runs through.
Preferably, lid and the rocker arm bonnet lower cover on the rocker arm bonnet, and the rocker arm bonnet lower cover and the cylinder head
It is bolted.
Preferably, the bolt includes the first bolt, the second bolt；First bolt is connected on the rocker arm bonnet simultaneously
Lid, the rocker arm bonnet lower cover and the cylinder head, rocker arm bonnet lower cover described in second bolt connection and the cylinder head.
Preferably, the bolt also includes the 3rd bolt, covers and is shaken with described on rocker arm bonnet described in the 3rd bolt connection
Arm cover lower cover.
Preferably, first bolt and second bolt are respectively arranged at the opposite side of the rocker arm bonnet, described
Three bolts are located at phase homonymy with second bolt.
Preferably, the junction with the rocker arm bonnet lower cover, the rocker arm bonnet lower cover and the gas are covered on the rocker arm bonnet
The junction of cylinder cap is respectively provided with sealing device.
Preferably, the sealing device is sealing gasket.
Preferably, the wall thickness at the rocker arm bonnet lower cover two ends is more than the wall thickness at middle part.
Compared with monoblock type rocker arm bonnet, the present invention, which looks for another way, provides a kind of including lid on rocker arm bonnet and rocker arm bonnet lower cover
Use and be detachably connected between lid and rocker arm bonnet lower cover on rocker arm bonnet, its rocker arm bonnet.When to engine adjust valve clearance, or
It is that such a split type rocker arm bonnet need to only be dismounted and covered on its rocker arm bonnet, be easy to work in test run, trimming, it is necessary to pull down rocker arm bonnet
Make human users.In addition, rocker arm bonnet lower cover is provided with through hole, for leading to from the outside pipeline entered inside engine rocker cover
Cross, improve the performance of rocker arm bonnet.
In the preferred scheme of the present invention, the rocker arm bonnet is provided with the first bolt, the second bolt and the 3rd bolt.Pass through
The setting of three bolts, it can be ensured that when the first bolt and the second bolt tighten fixed, it is ensured that on rocker arm bonnet under lid and rocker arm bonnet
Reliably it is fixedly connected between lid, and with good sealing effectiveness.For former monoblock type rocker arm bonnet, three kinds of spiral shells
Bolt set-up mode, on the premise of split type installation is reached, only sets up the 3rd bolt (can be set to one) and connection can be achieved
Reliability and sealing.
In another preferred scheme of the present invention, the wall thickness at design rocker arm bonnet lower cover two ends is more than the wall thickness at middle part.Only increase
The wall thickness at rocker arm bonnet lower cover two ends, can control the overall weight of rocker arm bonnet, reduce product cost；Meanwhile, it is capable to improve rocking arm
The area of cover sealing surface, improves sealing, effectively ensures the reliability that engine is used.
The present invention also provides a kind of engine, including cylinder, cylinder head and the rocker arm bonnet for being installed on the cylinder head, described
Rocker arm bonnet is the rocker arm bonnet described in any of the above-described.The engine has and above-mentioned rocker arm bonnet identical technique effect.
Preferably, it is air hose from the outside pipeline entered inside the rocker arm bonnet.
Brief description of the drawings
Fig. 1 is a kind of assembling process schematic diagram of specific embodiment of rocker arm bonnet provided by the present invention；
View when Fig. 2 takes apart for lid on rocker arm bonnet in Fig. 1 with rocker arm bonnet lower cover；
Fig. 3 is the view after rocker arm bonnet assembling in Fig. 1；
Fig. 4 is the axial sectional view of rocker arm bonnet in Fig. 3；
Fig. 5 is another axial sectional view of rocker arm bonnet in Fig. 3.
In Fig. 1-5：
It is lid 12 on rocker arm bonnet lower cover 11, rocker arm bonnet, the first bolt 13, the second bolt 14, the 3rd bolt 15, pipeline 16, logical
Hole 17, sealing device 18, seal washer 19；
Rocker arm bonnet lower cover part thicken position A.
Embodiment
Based on existing monoblock type rocker arm bonnet, core of the invention is to provide a kind of rocker arm bonnet, and the rocker arm bonnet is conducive to work
Personnel dismount, and conveniently engine can be rebuild and test run.Another core of the present invention, which is to provide one kind, to be had
The engine of above-mentioned rocker arm bonnet.
In order that those skilled in the art more fully understand the present invention program, illustrated with reference to Figure of description
Present embodiment.
Rocker arm bonnet lower cover 11 of the present embodiment to be fixed including lid on rocker arm bonnet 12 and with cylinder head (not shown)
Rocker arm bonnet be described in detail for main body.
Refer to the assembling process schematic diagram that Fig. 1-3, Fig. 1 is a kind of specific embodiment of rocker arm bonnet provided by the present invention；Fig. 2
For view when lid and rocker arm bonnet lower cover are taken apart on rocker arm bonnet in Fig. 1；Fig. 3 is the state after rocker arm bonnet assembling in Fig. 1
Schematic diagram.
The rocker arm bonnet that the present invention is provided is a kind of split type rocker arm bonnet, and the rocker arm bonnet is installed on cylinder, right
Cylinder head, which has, to be covered and sealedly effect.The rocker arm bonnet includes lid 12 on rocker arm bonnet, the rocker arm bonnet lower cover fixed with cylinder head
11。
Lid 12 and rocker arm bonnet lower cover 11 are to be detachably connected on rocker arm bonnet in the present embodiment.Herein can be using bolt, card
The connected modes such as button, Comparatively speaking, bolt fastening structure are simple, and are connected firmly, and good airproof performance is easy to staff to operate.
Therefore, it is preferred to use bolt connection in the present embodiment.
The rocker arm bonnet is as a result of split-type structural, in practical operation, when staff to engine carry out test run,
During trimming, as shown in Fig. 2 staff need to only remove lid on rocker arm bonnet 12, you can carry out valve clearance regulation, or to shaking
Arm cover inside and covered cylinder head position are overhauled.Compared with monoblock type rocker arm bonnet, disassembly process is simple, light,
The labor intensity of staff is reduced, operating efficiency is effectively improved；In addition, during dismounting, the position of rocker arm bonnet lower cover 11
It can remain stationary as, then this kind of split-type design also can ensure that the fixation of miscellaneous part and impaction state in rocker arm bonnet lower cover 11,
In order to avoid influenceed by overhauling.
Fig. 4 is refer to, Fig. 4 is the axial sectional view of rocker arm bonnet in Fig. 3.
On this basis, the rocker arm bonnet lower cover 11 in the present embodiment sets through hole 17, as shown in figure 1, external pipeline 16 can
By through hole 17 by the outside inside for entering rocker arm bonnet.When needing to install external pipeline 16, staff can be run through
Through hole 17 on rocker arm bonnet lower cover 11, subsequently into rocker arm bonnet inside, and is installed on rocker arm bonnet lower cover 11.The through hole 17 is rocking arm
The pipeline 16 needed for being set at internal or cylinder head is covered there is provided possible, so as to be conducive to improving the performance of engine, moreover, pipe
The installation on road 16 is more convenient.
Further, since through hole 17 is arranged at rocker arm bonnet lower cover 11, when staff needs dismounting rocker arm bonnet to adjust valve
During other operations such as gap, as described above, it is only necessary to dismantle lid on rocker arm bonnet 12, the stationary state of rocker arm bonnet lower cover 11 is kept,
Therefore, without repeated disassembled and assembled pipeline 16.Therefore in the present embodiment, it is ensured that the good installment state of pipeline 16, and its sealing
Property, improve the service life of rocker arm bonnet and pipeline 16.
Pipeline 16 specifically could be arranged to latch structure, as shown in figure 4, pipeline 16 is inserted directly at through hole 17, it two
End can connect flexible pipe, to realize being reliably connected for pipeline 16 and rocker arm bonnet lower cover 11, handling simplicity.Certainly, pipeline 16 is common
It is also feasible that flexible pipe, which is inserted directly into through hole 17,.When pipeline 16 is designed as latch structure, its one end can be provided with annular protrusion, insertion
After through hole 17, annular protrusion is locked to the side wall of rocker arm bonnet lower cover 11, in order to install positioning.
In order to improve the sealing of pipeline 16 and rocker arm bonnet lower cover 11, seal washer 19 can be set, as shown in Figure 4.It is close
The overcoat pipeline 16 of seal washer 19, after installation, can be located between the side wall of rocker arm bonnet lower cover 11 and annular protrusion, play good close
Seal effect.
In the present embodiment, lid 12 and rocker arm bonnet lower cover 11 on rocker arm bonnet, and rocker arm bonnet lower cover 11 and cylinder head are by spiral shell
Tether and connect, bolt connecting mode herein can make certain optimization design.As Figure 1-3, bolt includes the first bolt
13rd, the second bolt 14, the first bolt 13 simultaneously on connecting rocker arm cover lid 12, rocker arm bonnet lower cover 11 and engine cylinder head, such as
Shown in Fig. 3, the first bolt 13 inserts the bolt hole that three is set simultaneously；Second bolt 14 then connecting rocker arm cover lower cover 11 with starting
The cylinder head of machine, the second bolt 14 only inserts the bolt hole set both this.
First bolt 13 and the second bolt 14 can be uniformly arranged on lid 12 and rocker arm bonnet lower cover 11 on rocker arm bonnet respectively,
Ensure that rocker arm bonnet has good fixation and sealing state after mounting.In addition, bolted setting can also have it
His mode.For example, lid 12 and rocker arm bonnet lower cover 11 on one group of bolt connection rocker arm bonnet can be set, another group of bolt connection is set
The cylinder head of rocker arm bonnet lower cover 11 and engine.
Two ways is compared, bolted set-up mode preferably in the present embodiment.Referring to Fig. 2, in this programme,
First bolt 13 can realize being fixedly connected for lid 12 on rocker arm bonnet, rocker arm bonnet lower cover 11 and cylinder head simultaneously, therefore, and this is preferably
Mode can save bolt usage quantity, reduce use cost；Moreover, during dismounting, the first bolt 13, the second bolt only need to be removed
14 are used to fix rocker arm bonnet lower cover 11 and cylinder head, therefore the design method can also simplify disassembly process, improve disassembly efficiency.
Further, the 3rd bolt 15 can also be set, lid 12 and rocker arm bonnet lower cover 11 on connecting rocker arm cover.As above
The first bolt 13, the second bolt 14 set can play the purpose of fixed rocker arm bonnet lower cover 11 and cylinder head, in order that
Lid 12 can also reach consistent tautness with rocker arm bonnet lower cover 11 on rocker arm bonnet, can set up and be only used for covering on connecting rocker arm cover
12 and the 3rd bolt 15 of rocker arm bonnet lower cover 11.
Moreover, the first bolt 13, the second bolt 14 can play the purpose of fixed rocker arm bonnet lower cover 11 and cylinder head, therefore
Based on reasonable layout, two kinds of bolts can relatively scattering device, further to reduce bolt usage quantity.As shown in Fig. 2 can
First bolt 13 and the second bolt 14 are respectively arranged to the opposite side of rocker arm bonnet.Opposite side and phase homonymy herein is relatively general
Read, and be not limited to one side of rocker arm bonnet.Such as, first bolt 13 is distributed in right-hand member side in Fig. 1, and another two is divided into it
Adjacent rear and front end side, is simply closer to right-hand member side, and two the second bolts 14 are then located at left end side.
In this way, it is relative with the bonding strength of rocker arm bonnet lower cover 11 to be not provided with lid 12 on the position of the first bolt 13, rocker arm bonnet
It is weaker, and the setting of the 3rd bolt 15 can increase bonding strength herein just, strengthen sealing effectiveness.As shown in Fig. 2 the 3rd spiral shell
Bolt 15 may be disposed at the phase homonymy of the second bolt 14, positioned at left end side.
Therefore, the setting of the 3rd bolt 15 in this programme is passed through, it can be ensured that twist in the first bolt 13 and the second bolt 14
When fastening, it is ensured that be reliably fixedly connected between lid 12 and rocker arm bonnet lower cover 11 on rocker arm bonnet, and imitated with good sealing
Really.Referring to Fig. 3, after the first bolt 13, the second bolt 14 and the 3rd bolt 15 are tightened, the confined state of split type rocker arm bonnet.
For former monoblock type rocker arm bonnet, the bolt set-up mode of the present embodiment optimizes the most.Such as Fig. 1 institutes
Show, it is assumed that the rocker arm bonnet is monolithic construction, then at least use the first bolt 13, and the second bolt 14 is also required to use the first spiral shell
The fixed form of bolt 13, could be realized overall fixed.And three kinds of bolt set-up modes of this programme, before split type installation is reached
Put, only set up connection can be achieved in the 3rd bolt 15 reliability and sealing, by taking Fig. 1 as an example, only set up the 3rd spiral shell
Bolt 15.
In view of the setting of above-mentioned bolt, in actually dismounting work, staff need to only unload the first bolt 13 and the 3rd
Bolt 15, can just remove lid on rocker arm bonnet 12, as shown in Figure 2.
Further, in order to reach in better seal effect, the present embodiment, lid 12 and rocker arm bonnet lower cover 11 on rocker arm bonnet
Junction, and the junction of rocker arm bonnet lower cover 11 and cylinder head is respectively provided with sealing device 18.The sealing of this in the present embodiment is filled
Put 18 and use sealing gasket, it is close when lid 12 is fixed and clamped with rocker arm bonnet lower cover 11, rocker arm bonnet lower cover 11 with cylinder head on rocker arm bonnet
Seal apparatus 18 effectively ensures rocker arm bonnet and the sealing effectiveness of cylinder head, it is ensured that the normal work of engine.
Fig. 5 is referred to, Fig. 5 is another axial sectional view of rocker arm bonnet in Fig. 3.
It is possible to further increase the wall thickness at the two ends of rocker arm bonnet lower cover 11, the thickness at middle part, the end face at two ends are larger than
Form the sealing surface contacted with above-mentioned sealing device 18.That is, to rocker arm bonnet lower cover 11 close to upper and lower sealing device 18
Two ends carry out local thickening.It is so local to set, increase the contact of rocker arm bonnet lower cover 11 and lid on rocker arm bonnet 12 and cylinder head
Area, also increases the area of rocker arm bonnet sealing surface, it is ensured that sealed reliability；Meanwhile, it is only local to rocker arm bonnet lower cover 11
Thicken, both improved the sealing effectiveness of rocker arm bonnet, the overall weight of rocker arm bonnet is alleviated again, be easy to dismounting, reduce product
Cost.
Except above-mentioned rocker arm bonnet, the present invention also provides a kind of engine with above-mentioned rocker arm bonnet, other portions of the engine
The structure divided refer to prior art.Also, the engine has a rocker arm bonnet described in any of the above-described embodiment, thus its have with
Above-mentioned rocker arm bonnet identical technique effect, is no longer repeated herein.
Specifically, in the present embodiment, the pipeline 16 for being installed on rocker arm bonnet can be air hose.Air hose is by detachably connecting
Connect and be arranged at rocker arm bonnet lower cover 11.The air hose can provide dynamic by the outside inside for entering rocker arm bonnet for the braking of engine
Power, improves the braking ability of engine.
The engine to rocker arm bonnet provided by the present invention and with the rocker arm bonnet is described in detail above.Herein
Apply example to be set forth the structure and embodiment of the present invention, the explanation of above example is only intended to help and understood
The structure and its core concept of the present invention.It should be pointed out that for those skilled in the art, not departing from this
On the premise of invention feature, some improvements and modifications can also be carried out to the present invention, these improvements and modifications also should be regarded as this hair
Bright protection domain.
Claims (6)
1. a kind of rocker arm bonnet, is installed on the cylinder head of engine, it is characterised in that the rocker arm bonnet includes covering (12) on rocker arm bonnet
With the rocker arm bonnet lower cover (11) fixed with the cylinder head, lid (12) and the rocker arm bonnet lower cover (11) are removable on the rocker arm bonnet
Unload connection；The rocker arm bonnet lower cover (11), which is provided with, is provided from the through hole that the outside pipeline (16) entered inside the rocker arm bonnet runs through
(17)；
(12) and the rocker arm bonnet lower cover (11), and the rocker arm bonnet lower cover (11) and the cylinder head are covered on the rocker arm bonnet
It is bolted；
The bolt includes the first bolt (13), the second bolt (14)；First bolt (13) is while connect the rocker arm bonnet
Upper lid (12), the rocker arm bonnet lower cover (11) and the cylinder head, second bolt (14) connect the rocker arm bonnet lower cover
(11) with the cylinder head；
The bolt also includes the 3rd bolt (15), and the 3rd bolt (15) connects lid (12) on the rocker arm bonnet and shaken with described
Arm cover lower cover (11)；
First bolt (13) and second bolt (14) are respectively arranged at the opposite side of the rocker arm bonnet, the 3rd spiral shell
Bolt (15) is located at the phase homonymy of the rocker arm bonnet with second bolt (14).
2. rocker arm bonnet according to claim 1, it is characterised in that (12) and the rocker arm bonnet lower cover are covered on the rocker arm bonnet
(11) junction, the rocker arm bonnet lower cover (11) and the junction of the cylinder head are respectively provided with sealing device (18).
3. rocker arm bonnet according to claim 2, it is characterised in that the sealing device (18) is sealing gasket.
4. rocker arm bonnet according to claim 2, it is characterised in that during the wall thickness at rocker arm bonnet lower cover (11) two ends is more than
The wall thickness in portion.
5. a kind of engine, including cylinder, cylinder head and the rocker arm bonnet for being installed on the cylinder head, it is characterised in that described to shake
Arm cover is the rocker arm bonnet as described in any one of Claims 1-4.
6. engine according to claim 5, it is characterised in that from the outside pipeline entered inside the rocker arm bonnet
(16) it is air hose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310553356.3A CN103670562B (en) | 2013-11-08 | 2013-11-08 | A kind of rocker arm bonnet and the engine with the rocker arm bonnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310553356.3A CN103670562B (en) | 2013-11-08 | 2013-11-08 | A kind of rocker arm bonnet and the engine with the rocker arm bonnet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103670562A CN103670562A (en) | 2014-03-26 |
| CN103670562B true CN103670562B (en) | 2017-10-03 |
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ID=50309239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310553356.3A Active CN103670562B (en) | 2013-11-08 | 2013-11-08 | A kind of rocker arm bonnet and the engine with the rocker arm bonnet |
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| Country | Link |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203570375U (en) * | 2013-11-08 | 2014-04-30 | 潍柴动力股份有限公司 | Rocker hood and engine with rocker hood |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4566071B2 (en) * | 2005-06-15 | 2010-10-20 | 本田技研工業株式会社 | Internal combustion engine |
| CN2903435Y (en) * | 2005-11-15 | 2007-05-23 | 潍柴动力股份有限公司 | Splitting cylinder head cover |
| CN201953502U (en) * | 2011-01-28 | 2011-08-31 | 潍坊新海铝业科技有限公司 | Split type cylinder cover hood |
| DE102011079166A1 (en) * | 2011-07-14 | 2013-01-17 | Mahle International Gmbh | Internal combustion engine |
| CN202611918U (en) * | 2012-04-18 | 2012-12-19 | 中国第一汽车股份有限公司 | Function-integrated split engine cylinder head cover |
-
2013
- 2013-11-08 CN CN201310553356.3A patent/CN103670562B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203570375U (en) * | 2013-11-08 | 2014-04-30 | 潍柴动力股份有限公司 | Rocker hood and engine with rocker hood |
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| Publication number | Publication date |
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| CN103670562A (en) | 2014-03-26 |
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