CN203570375U - Rocker hood and engine with rocker hood - Google Patents
Rocker hood and engine with rocker hood Download PDFInfo
- Publication number
- CN203570375U CN203570375U CN201320705106.2U CN201320705106U CN203570375U CN 203570375 U CN203570375 U CN 203570375U CN 201320705106 U CN201320705106 U CN 201320705106U CN 203570375 U CN203570375 U CN 203570375U
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- China
- Prior art keywords
- rocker arm
- arm bonnet
- bolt
- lower cover
- rocker
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- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a rocker hood which is installed on an air cylinder cover of an engine. The rocker hood comprises a rocker hood upper cover and a rocker hood lower cover, wherein the rocker hood lower cover and the air cylinder cover are fixed together. The rocker hood upper cover and the rocker hood lower cover are detachably connected. A through hole for a pipeline which enters the rocker hood from the outside to penetrate is formed in the rocker hood lower cover. The rocker hood is of the split design, a worker can conveniently detach and install the rocker hood and the working intensity is relieved. Meanwhile, the through hole is formed in the rocker hood lower cover to enhance the functions of the rocker hood. Installation of an externally-connected pipeline is facilitated, and performances of the engine are improved. The utility model further provides the engine provided with the rocker hood.
Description
Technical field
The utility model relates to technical field of engines, particularly relates to a kind of rocker arm bonnet.In addition, the utility model also relates to a kind of motor with above-mentioned rocker arm bonnet.
Background technique
Rocker arm bonnet is applied on cylinder, is one of vitals of motor.Rocker arm bonnet can not only play the effect that hides cylinder head, also has the effect of blanket gas cylinder cap.
What at present, at cylinder, cover extensive use is a kind of integrated type rocker arm bonnet.In the time need to adjusting valve clearance or the part of rocker arm bonnet inside is safeguarded, whole rocker arm bonnet need to be disassembled.
There is following technical problem in this integrated type rocker arm bonnet:
The first, in disassembly process, staff need to dismantle and install whole thick and heavy rocker arm bonnet, and working strength is larger.
The second, the function of rocker arm bonnet is comparatively limited, and while needing to arrange some external pipelines in rocker arm bonnet inside or cylinder head, rocker arm bonnet has limited the installation of pipeline, has affected the performance optimization of motor.
In view of this, urgently for the defect of existing integrated type rocker arm bonnet, design, a kind of rocker arm bonnet of easy accessibility is provided.
Model utility content
For above-mentioned defect, the purpose of this utility model is to provide a kind of rocker arm bonnet, applies this kind of rocker arm bonnet, and staff can be simply, quickly and easily it is dismantled and is installed, and reduces operator's working strength.On this basis, the utility model also provides a kind of motor with this rocker arm bonnet.
The rocker arm bonnet that the utility model provides, comprise rocker arm bonnet upper cover and with the fixing rocker arm bonnet lower cover of described cylinder head, described rocker arm bonnet upper cover and described rocker arm bonnet lower cover are for removably connecting; Described rocker arm bonnet lower cover is provided with the through hole running through for the pipeline that enters described rocker arm bonnet inside from outside.
Preferably, described rocker arm bonnet upper cover and described rocker arm bonnet lower cover, and described rocker arm bonnet lower cover and described cylinder head are all bolted.
Preferably, described bolt comprises the first bolt, the second bolt; Described the first bolt connects described rocker arm bonnet upper cover, described rocker arm bonnet lower cover and described cylinder head simultaneously, and described the second bolt connects described rocker arm bonnet lower cover and described cylinder head.
Preferably, described bolt also comprises the 3rd bolt, and described the 3rd bolt connects described rocker arm bonnet upper cover and described rocker arm bonnet lower cover.
Preferably, described the first bolt and described the second bolt are arranged at respectively the opposite side of described rocker arm bonnet, and described the 3rd bolt and described the second bolt are positioned at same side.
Preferably, the joint of described rocker arm bonnet upper cover and described rocker arm bonnet lower cover, the joint of described rocker arm bonnet lower cover and described cylinder head all arranges seal arrangement.
Preferably, described seal arrangement is sealing gasket.
Preferably, the wall thickness at described rocker arm bonnet lower cover two ends is greater than the wall thickness at middle part.
Compared with integrated type rocker arm bonnet, the utility model looks for another way provides a kind of rocker arm bonnet that comprises rocker arm bonnet upper cover and rocker arm bonnet lower cover, between its rocker arm bonnet upper cover and rocker arm bonnet lower cover, adopts and removably connects.When motor is being adjusted to valve clearance, or when test run, trimming, need to pull down rocker arm bonnet, this kind of split type rocker arm bonnet only needs its rocker arm bonnet upper cover of dismounting, is convenient to staff's operation.In addition, rocker arm bonnet lower cover is provided with through hole, for enter the passing through of pipeline of engine rocker cover inside from outside, has improved the usability of rocker arm bonnet.
In preferred version of the present utility model, this rocker arm bonnet is provided with the first bolt, the second bolt and the 3rd bolt.By the setting of the 3rd bolt, can guarantee, when the first bolt and the second bolt tightening are fixing, guarantee to be fixedly connected with reliably between rocker arm bonnet upper cover and rocker arm bonnet lower cover, and there is good sealing effect.Especially for former integrated type rocker arm bonnet, three kinds of bolt set-up modes, under the prerequisite that reaches split type installation, only set up the 3rd bolt (can be made as) and can realize reliability and the sealing of connection.
In another preferred version of the present utility model, the wall thickness at design rocker arm bonnet lower cover two ends is greater 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, can improve the area of rocker arm bonnet sealing surface, improve sealing, effectively guarantee the reliability that motor uses.
The utility model also provides a kind of motor, comprises cylinder, cylinder head and is installed on the rocker arm bonnet of described cylinder head, and described rocker arm bonnet is the rocker arm bonnet described in above-mentioned any one.This motor has the technique effect identical with above-mentioned rocker arm bonnet.
Preferably, the described pipeline that enters described rocker arm bonnet inside from outside is air duct.
Accompanying drawing explanation
Fig. 1 provides the assembly process schematic diagram of a kind of specific embodiment of rocker arm bonnet for the utility model;
Fig. 2 is view when rocker arm bonnet upper cover and rocker arm bonnet lower cover are taken apart in Fig. 1;
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:
Rocker arm bonnet lower cover 11, rocker arm bonnet upper cover 12, the first bolt 13, the second bolt 14, the 3rd bolt 15, pipeline 16, through hole 17, seal arrangement 18, seal washer 19;
The local thickening of rocker arm bonnet lower cover position A.
Embodiment
Based on existing integrated type rocker arm bonnet, core of the present utility model is to provide a kind of rocker arm bonnet, and this rocker arm bonnet is conducive to staff's dismounting, can conveniently to motor, rebuild and test run.Another core of the present utility model is to provide a kind of motor with above-mentioned rocker arm bonnet.
In order to make those skilled in the art person understand better the utility model scheme, below in conjunction with Figure of description, illustrate present embodiment.
Present embodiment is to comprise rocker arm bonnet upper cover 12 and to be elaborated as main body with the rocker arm bonnet of the fixing rocker arm bonnet lower cover 11 of cylinder head (not shown).
Refer to Fig. 1-3, Fig. 1 provides the assembly process schematic diagram of a kind of specific embodiment of rocker arm bonnet for the utility model; Fig. 2 is view when rocker arm bonnet upper cover and rocker arm bonnet lower cover are taken apart in Fig. 1; Fig. 3 is the view after rocker arm bonnet assembling in Fig. 1.
The rocker arm bonnet that the utility model provides is a kind of split type rocker arm bonnet, and this rocker arm bonnet is installed on cylinder, cylinder head is had to the effect that hides and seal.This rocker arm bonnet comprise rocker arm bonnet upper cover 12, with the fixing rocker arm bonnet lower cover 11 of cylinder head.
In the present embodiment, rocker arm bonnet upper cover 12 and rocker arm bonnet lower cover 11 are for removably connecting.Can adopt the Placements such as bolt, buckle herein, Comparatively speaking, bolt fastening structure is simple, and is connected firmly, and good airproof performance is convenient to staff's operation.Therefore, preferably with bolts in the present embodiment.
This rocker arm bonnet is owing to having adopted split-type structural, in practical operation, when staff carries out test run, trimming to motor, as shown in Figure 2, staff only need remove rocker arm bonnet upper cover 12, can carry out valve clearance adjusting, or rocker arm bonnet inside and covered cylinder head position are overhauled.Compared with integrated type rocker arm bonnet, disassembly process is simple, light, has reduced staff's labor intensity, has effectively improved working efficiency; In addition, during dismounting, it is motionless that the position of rocker arm bonnet lower cover 11 can keep, and this kind of split-type design also can be guaranteed fixing and impaction state of rocker arm bonnet lower cover 11 interior miscellaneous parts, in order to avoid the impact of being overhauled.
Please refer to Fig. 4, 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 arranges through hole 17, and as shown in Figure 1, external pipeline 16 can be entered by through hole 17 inside of rocker arm bonnet by outside.When needs are installed external pipeline 16, staff can be run through the through hole 17 on rocker arm bonnet lower cover 11, then enters rocker arm bonnet inside, and is installed on rocker arm bonnet lower cover 11.This through hole 17 for rocker arm bonnet inside or cylinder head place arrange required pipeline 16 provide may, thereby be conducive to improve the performance of motor, and the installation of pipeline 16 is comparatively convenient.
In addition, because through hole 17 is arranged at rocker arm bonnet lower cover 11, when staff need to dismantle rocker arm bonnet and carrys out other operations such as valve gap adjustment, as mentioned above, only need rocker arm bonnet upper cover 12 to dismantle, keep the stationary state of rocker arm bonnet lower cover 11, therefore, also without repeated disassembled and assembled pipeline 16.Therefore in the present embodiment, can guarantee the good installment state of pipeline 16, and sealing, the working life of having improved rocker arm bonnet and pipeline 16.
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.Seal washer 19 overcoat pipelines 16, after installation, can, between rocker arm bonnet lower cover 11 sidewalls and annular protrusion, play good sealing effect.
In the present embodiment, rocker arm bonnet upper cover 12 and rocker arm bonnet lower cover 11, and rocker arm bonnet lower cover 11 is connected by bolt with cylinder head, bolt connecting mode herein can be made certain optimal design.As Figure 1-3, bolt comprises the first bolt 13, the second bolt 14, the first bolts 13 cylinder head of connecting rocker arm cover upper cover 12, rocker arm bonnet lower cover 11 and motor simultaneously, and as shown in Figure 3, the first bolt 13 inserts the bolt hole that three arranges simultaneously; The cylinder head of the second 14, bolt connecting rocker arm cover lower cover 11 and motor, the second bolt 14 only inserts the bolt hole of this two setting.
The first bolt 13 and the second bolt 14 evenly can be arranged at respectively to rocker arm bonnet upper cover 12 and rocker arm bonnet lower cover 11, guarantee that rocker arm bonnet has good fixing and sealing state after assembling.In addition, bolted setting can also have other modes.For example, one group of bolt connecting rocker arm cover upper cover 12 and rocker arm bonnet lower cover 11 can be set, the cylinder head of another group bolt connecting rocker arm cover lower cover 11 and motor is set.
Two kinds of modes are compared, preferably bolted set-up mode in the present embodiment.Referring to Fig. 2, in this programme, the first bolt 13 can be realized being fixedly connected with of rocker arm bonnet upper cover 12, rocker arm bonnet lower cover 11 and cylinder head simultaneously, and therefore, this optimal way can be saved bolt usage quantity, reduces user cost; And, during dismounting, only need to remove 14, the first bolt 13, the second bolt for fixing rocker arm bonnet lower cover 11 and cylinder head, therefore this design can also be simplified disassembly process, improve dismounting efficiency.
Further, the 3rd bolt 15 can also be set, for connecting rocker arm cover upper cover 12 and rocker arm bonnet lower cover 11.As above the first bolt 13, the second bolt 14 arranging all can play the object of fixing rocker arm bonnet lower cover 11 and cylinder head, in order to make rocker arm bonnet upper cover 12 also can reach consistent tautness with rocker arm bonnet lower cover 11, can set up only the 3rd bolt 15 for connecting rocker arm cover upper cover 12 and rocker arm bonnet lower cover 11.
And the first bolt 13, the second bolt 14 all can play the object of fixing rocker arm bonnet lower cover 11 and cylinder head, therefore based on reasonable layout, relatively scattering device of two kinds of bolts, further to reduce bolt usage quantity.As shown in Figure 2, the first bolt 13 and the second bolt 14 can be arranged at respectively to the opposite side of rocker arm bonnet.Opposite side herein and same side are relative concept, and are not limited to one side of rocker arm bonnet.Such as, in Fig. 1, first bolt 13 is distributed in right-hand member limit, and another two are divided into its adjacent limit, rear and front end, are just more close to right-hand member limit, and two the second bolts 14 are located at left end limit.
So, the position of the first bolt 13 is not set, the join strength of rocker arm bonnet upper cover 12 and rocker arm bonnet lower cover 11 relatively a little less than, and arranging of the 3rd bolt 15 can increase join strength herein just, strengthens sealing effect.As shown in Figure 2, the 3rd bolt 15 can be arranged at the same side of the second bolt 14, is positioned at left end limit.
Therefore, by the setting of the 3rd bolt 15 in this programme, can guarantee to tighten when fixing at the first bolt 13 and the second bolt 14, guarantee to be fixedly connected with reliably between rocker arm bonnet upper cover 12 and rocker arm bonnet lower cover 11, and there is good sealing effect.Referring to Fig. 3, after the first bolt 13, the second bolt 14 and the 3rd bolt 15 are tightened, the assembling condition of split type rocker arm bonnet.
Especially for former integrated type rocker arm bonnet, the bolt set-up mode of the present embodiment is optimized the most.As shown in Figure 1, suppose that this rocker arm bonnet is monolithic construction, at least adopt the first bolt 13, and the second bolt 14 also needs to adopt the means of fixation of the first bolt 13, could realize entirety fixing.And three kinds of bolt set-up modes of this programme, under the prerequisite that reaches split type installation, are only set up the 3rd bolt 15 and can realize reliability and the sealing of connection, take Fig. 1 as example, only set up the 3rd bolt 15.
In view of the setting of above-mentioned bolt, in actual disassemble and assemble work, staff only need unload the first bolt 13 and the 3rd bolt 15, just rocker arm bonnet upper cover 12 can be removed, as shown in Figure 2.
Further, in order to reach better sealing effect, in the present embodiment, the joint at rocker arm bonnet upper cover 12 with rocker arm bonnet lower cover 11, and rocker arm bonnet lower cover 11 all arranges seal arrangement 18 with the joint of cylinder head.In the present embodiment, sealing device 18 adopts sealing gasket, when rocker arm bonnet upper cover 12 is fixed and clamped with cylinder head with rocker arm bonnet lower cover 11, rocker arm bonnet lower cover 11, seal arrangement 18 effectively guarantees the sealing effect of rocker arm bonnet and cylinder head, guarantees the normal work of motor.
Refer to Fig. 5, Fig. 5 is another axial sectional view of rocker arm bonnet in Fig. 3.
Further, can increase the wall thickness at rocker arm bonnet lower cover 11 two ends, make it be greater than the thickness at middle part, the end face at two ends forms the sealing surface contacting with above-mentioned seal arrangement 18.That is to say, rocker arm bonnet lower cover 11 is carried out to part thickening near the two ends of upper and lower seal arrangement 18.So local setting, has increased the area of contact of rocker arm bonnet lower cover 11 with rocker arm bonnet upper cover 12 and cylinder head, has also just increased the area of rocker arm bonnet sealing surface, guarantees the reliability of sealing; Meanwhile, only to the local thickening of rocker arm bonnet lower cover 11, both improve the sealing effect of rocker arm bonnet, alleviated again the overall weight of rocker arm bonnet, be convenient to dismounting, reduced the cost of product.
Except above-mentioned rocker arm bonnet, the utility model also provides a kind of motor with above-mentioned rocker arm bonnet, and the structure of these other parts of motor please refer to prior art.And this motor has the rocker arm bonnet described in above-mentioned arbitrary embodiment, therefore it has the technique effect identical with above-mentioned rocker arm bonnet, no longer repeats herein.
Particularly, in the present embodiment, the pipeline 16 that is installed on rocker arm bonnet can be air duct.Air duct is arranged at rocker arm bonnet lower cover 11 by removably connecting.This air duct is entered the inside of rocker arm bonnet by outside, can provide power for the braking of motor, improves the braking ability of motor.
Above rocker arm bonnet provided by the utility model and the motor with this rocker arm bonnet are described in detail.Applied example herein structure of the present utility model and mode of execution are set forth, above embodiment's explanation is just for helping to understand structure of the present utility model and core concept thereof.It should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model feature, can also carry out some improvements and modifications to the utility model, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (10)
1. a rocker arm bonnet, be installed on the cylinder head of motor, it is characterized in that, described rocker arm bonnet comprise rocker arm bonnet upper cover (12) and with the fixing rocker arm bonnet lower cover (11) of described cylinder head, described rocker arm bonnet upper cover (12) and described rocker arm bonnet lower cover (11) removably connect; Described rocker arm bonnet lower cover (11) is provided with the through hole (17) running through for the pipeline (16) that enters described rocker arm bonnet inside from outside.
2. rocker arm bonnet according to claim 1, is characterized in that, described rocker arm bonnet upper cover (12) and described rocker arm bonnet lower cover (11), and described rocker arm bonnet lower cover (11) is all bolted with described cylinder head.
3. rocker arm bonnet according to claim 2, is characterized in that, described bolt comprises the first bolt (13), the second bolt (14); Described the first bolt (13) connects described rocker arm bonnet upper cover (12), described rocker arm bonnet lower cover (11) and described cylinder head simultaneously, and described the second bolt (14) connects described rocker arm bonnet lower cover (11) and described cylinder head.
4. rocker arm bonnet according to claim 3, it is characterized in that, described bolt also comprises the 3rd bolt (15), and described the 3rd bolt (15) connects described rocker arm bonnet upper cover (12) and described rocker arm bonnet lower cover (11).
5. rocker arm bonnet according to claim 4, it is characterized in that, described the first bolt (13) and described the second bolt (14) are arranged at respectively the opposite side of described rocker arm bonnet, and described the 3rd bolt (15) and described the second bolt (14) are positioned at the same side of described rocker arm bonnet.
6. according to the rocker arm bonnet described in claim 1-5 any one, it is characterized in that, the joint of described rocker arm bonnet upper cover (12) and described rocker arm bonnet lower cover (11), described rocker arm bonnet lower cover (11) all arranges seal arrangement (18) with the joint of described cylinder head.
7. rocker arm bonnet according to claim 6, is characterized in that, described seal arrangement (18) is sealing gasket.
8. rocker arm bonnet according to claim 6, is characterized in that, the wall thickness at described rocker arm bonnet lower cover (11) two ends is greater than the wall thickness at middle part.
9. a motor, comprises cylinder, cylinder head and is installed on the rocker arm bonnet of described cylinder head, it is characterized in that, described rocker arm bonnet is the rocker arm bonnet as described in claim 1 to 8 any one.
10. motor according to claim 9, is characterized in that, the described pipeline (16) that enters described rocker arm bonnet inside from outside is air duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320705106.2U CN203570375U (en) | 2013-11-08 | 2013-11-08 | Rocker hood and engine with rocker hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320705106.2U CN203570375U (en) | 2013-11-08 | 2013-11-08 | Rocker hood and engine with rocker hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203570375U true CN203570375U (en) | 2014-04-30 |
Family
ID=50538109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320705106.2U Withdrawn - After Issue CN203570375U (en) | 2013-11-08 | 2013-11-08 | Rocker hood and engine with rocker hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203570375U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670562A (en) * | 2013-11-08 | 2014-03-26 | 潍柴动力股份有限公司 | Rocker arm cover and engine provided with same |
-
2013
- 2013-11-08 CN CN201320705106.2U patent/CN203570375U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670562A (en) * | 2013-11-08 | 2014-03-26 | 潍柴动力股份有限公司 | Rocker arm cover and engine provided with same |
| CN103670562B (en) * | 2013-11-08 | 2017-10-03 | 潍柴动力股份有限公司 | A kind of rocker arm bonnet and the engine with the rocker arm bonnet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140430 Effective date of abandoning: 20171003 |
|
| AV01 | Patent right actively abandoned |