CN201474733U - Motorcycle engine - Google Patents
Motorcycle engine Download PDFInfo
- Publication number
- CN201474733U CN201474733U CN2009202338498U CN200920233849U CN201474733U CN 201474733 U CN201474733 U CN 201474733U CN 2009202338498 U CN2009202338498 U CN 2009202338498U CN 200920233849 U CN200920233849 U CN 200920233849U CN 201474733 U CN201474733 U CN 201474733U
- Authority
- CN
- China
- Prior art keywords
- camshaft
- rocker arm
- arm support
- vehicular engine
- motor
- 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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- Valve-Gear Or Valve Arrangements (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
The utility model discloses a motorcycle engine, which aims at providing a motorcycle engine with the characteristics of easy control of machining precision, lower manufacturing cost, small noise and the like, and comprises a cam shaft and a rocker arm connected with the cam shaft, wherein the whole cylindrical surface structure of the cam shaft is fixedly connected in the holder of the rocker arm.
Description
[technical field]
The utility model relates to a kind of motor, particularly relates to a kind of motor vehicular engine.
[background technique]
As shown in Figure 1, present existing motor vehicular engine, the means of fixation of its camshaft 10 is a combined type, be that a semi-cylindrical is set on the rocker arm support 12, a semi-cylindrical is set on the engine cylinder head 14, and both fix camshaft 10 by complete cylindrical surface of rocker arm support locating stud composition then.
In this kind means of fixation, be used for fixing the semi-cylindrical of rocker arm support 12 of the whole cylindrical surface structure of camshaft and the semi-cylindrical of engine cylinder head 14, need separate machined, difficulty of processing is bigger, and then makes that its manufacture cost is higher.And two semi-cylindricals are to realize fixing by locating stud, and the error of positioning pin hole position may influence the curvature of camshaft two ends stationary plane, causes camshaft bearings at both ends unbalance stress thus, and the noise of motor increases.
Therefore, industry needs a kind of motor vehicular engine of improvement, solves the problems referred to above that exist on the existing camshaft means of fixation.
[summary of the invention]
For overcoming existing motor vehicular engine, its camshaft fixed structure difficulty of processing is big, manufacture cost is than problems such as height, and the utility model provides a kind of motor, the structure that is used for fixing camshaft that it adopts, and difficulty of processing is low, and manufacture cost is lower.
In order to solve the problems of the technologies described above, the utility model by the following technical solutions: a kind of motor vehicular engine, it comprises camshaft and the rocking arm that is connected with camshaft.Wherein the whole cylindrical surface structure of camshaft is fixedly connected in the rocker arm support.
Further, in different mode of executions, wherein rocker arm support is provided with the hole of a full circle pattern, and the whole cylindrical surface structure of camshaft is to be fixed in this hole.
Further, in different mode of executions, wherein the whole cylndrical surface of camshaft and the joint of rocker arm support also are provided with back-up ring.
Further, in different mode of executions, wherein also be connected with a timing sprocket on the camshaft.
Further, in different mode of executions, wherein camshaft is to be connected by bolt with timing sprocket.
The beneficial effects of the utility model are that it is fixedly connected on the whole cylindrical surface structure of camshaft in the rocker arm support, thereby make that the difficulty of processing of its processing structure is lower, and then reduce its manufacture cost.In addition, the curvature unanimity of camshaft two ends stationary plane also just makes its bearings at both ends stressed evenly, and then makes that the noise of motor is less.
[description of drawings]
Fig. 1 is the partial structurtes schematic representation of a kind of motor vehicular engine of the prior art;
Fig. 2 is the partial structurtes schematic representation of a kind of motor vehicular engine of relating to of the utility model.
[embodiment]
Please referring to shown in Figure 2, a kind of motor vehicular engine that the utility model relates to, it comprises camshaft 22, rocker arm support 24 and timing sprocket 26.
Wherein rocker arm support 24 is provided with the hole of a full circle type, and the whole cylindrical surface structure of camshaft 22 is to be fixedly installed in this hole.Further, loosening for avoiding camshaft to be connected with rocker arm support, in the whole cylndrical surface of camshaft and the joint of rocker arm support, also be provided with back-up ring 23.Further, the bottom of camshaft 22 also is connected with a timing sprocket 26 by bolt 25.
During assembling,, be installed in the just round hole that is provided with on the rocker arm support 24 earlier with the whole cylindrical surface structure of camshaft 22.Back-up ring 23 is installed then between camshaft 22 and rocker arm support 24.The last bottom that by bolt 25 timing sprocket 26 is connected in camshaft 24 again.
Be combined into a cylndrical surface with two semi-cylindricals in the prior art and fix camshaft, camshaft in the utility model motor vehicular engine is fixedly connected on the whole cylndrical surface of rocker arm support, thereby machining accuracy is more easy to control, manufacture cost is lower, and because the utility model does not need to use locating stud to fix two semi-cylindricals, thereby engine noise is littler.
The above only is a better embodiment of the present utility model; protection domain of the present utility model does not exceed with above-mentioned mode of execution; as long as the equivalence that those of ordinary skills do according to the utility model institute disclosure is modified or changed, all should include in the protection domain of putting down in writing in claims.
Claims (5)
1. motor vehicular engine, it comprises camshaft and the rocking arm that is connected with described camshaft, it is characterized in that, the whole cylindrical surface structure of wherein said camshaft is fixedly connected in the described rocker arm support.
2. motor vehicular engine as claimed in claim 1 is characterized in that: wherein said rocker arm support is provided with the hole of a full circle pattern, and the whole cylindrical surface structure of camshaft is to be fixed in this hole.
3. motor vehicular engine as claimed in claim 1 is characterized in that: the whole cylndrical surface of wherein said camshaft and the joint of rocker arm support also are provided with back-up ring.
4. motor vehicular engine as claimed in claim 1 is characterized in that: also be connected with a timing sprocket on the wherein said camshaft.
5. motor vehicular engine as claimed in claim 1 is characterized in that: wherein said camshaft is to be connected by bolt with timing sprocket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202338498U CN201474733U (en) | 2009-07-29 | 2009-07-29 | Motorcycle engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202338498U CN201474733U (en) | 2009-07-29 | 2009-07-29 | Motorcycle engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201474733U true CN201474733U (en) | 2010-05-19 |
Family
ID=42410981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202338498U Expired - Fee Related CN201474733U (en) | 2009-07-29 | 2009-07-29 | Motorcycle engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201474733U (en) |
-
2009
- 2009-07-29 CN CN2009202338498U patent/CN201474733U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100519 Termination date: 20120729 |