CN203640794U - Engine valve rocker - Google Patents
Engine valve rocker Download PDFInfo
- Publication number
- CN203640794U CN203640794U CN201320879408.1U CN201320879408U CN203640794U CN 203640794 U CN203640794 U CN 203640794U CN 201320879408 U CN201320879408 U CN 201320879408U CN 203640794 U CN203640794 U CN 203640794U
- Authority
- CN
- China
- Prior art keywords
- valve
- contact device
- rocker arm
- engine
- rocker
- 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 - Lifetime
Links
- 238000005096 rolling process Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The utility model provides a technical scheme of an engine valve rocker. According to the technical scheme, the engine valve rocker comprises a rocker arm body and a needle bearing connected to the rocker arm body in a riveting mode, the needle bearing is in contact with a cam, the end, close to an engine valve rod, of the rocker arm body is provided with a through hole, a positioning pin is fixedly inserted into the through hole, a rotary valve contact device is connected to the positioning pin in a riveting mode, and the lower end of the valve contact device makes contact with the engine valve rod. By means of the scheme, the friction loss between the rocker arm and a valve can be reduced, the lateral force stressed by the valve is reduced, and the responding speed of the valve is improved.
Description
Technical field
The utility model relates to a kind of engine valve controlling device, especially a kind of engine valve rocker arm.
Background technique
In the prior art, known technology is, along with the develop rapidly of automotive industry, power character, the Economy of people to motor car engine proposes more and more higher requirement, impel motor car engine to strengthening, at a high speed, low oil consumption, low emission future development, thereby also component product has been proposed to requirements at the higher level.Valve rocker is as one of motor car engine vital part, and improving its wear resistance, reducing friction factor, lightweight, long-life etc. is valve rocker design and the target of manufacturing pursuit.
In the external interior valve rocker of producing, there is roller rocker arms and be not with two kinds of roller rocker arms at present.Wherein extensive with roller rocker arms use, in this, rocking arm is made up of two-part, and main body is rocker body, and another part is needle bearing; After the bearing pin of needle bearing and rocker body riveted joint, becoming one is the typical structure of this rocking arm.
Needle bearing contacts with cam, when work, rotate and power is passed to valve by rocking arm with cam and reduce friction factor with this, improve working life, but this rocking arm and valve contact position are fixed structure, friction mode is sliding friction, frictional loss is larger, is also the key factor that causes that rocking arm and associated part lost efficacy., this is the existing deficiency of prior art.
Model utility content
The purpose of this utility model, be exactly for the existing deficiency of prior art, and a kind of technological scheme of engine valve rocker arm is provided, this scheme can reduce the frictional loss between rocking arm and valve, reduce the suffered lateral force of valve, improved valve speed of response.
This programme is achieved by the following technical measures: a kind of engine valve rocker arm, and the needle bearing contacting with cam on including rocker body and being riveted on rocker body, the one end near engine air valve rod in rocker body has through hole; In through hole, be fixedly inserted with locating stud; On locating stud, riveted joint has rotating valve contact device; The lower end of valve contact device contacts with engine air valve rod.
As this programme preferably: valve contacting point device is bearing.
As this programme preferably: valve contact device is the slip ring being riveted on locating stud.
As this programme preferably: valve contact device is the slip ring that is riveted on the upper end open on locating stud.
As this programme preferably: valve contact device is to be enclosed within the boss that the lower end on locating stud is cambered surface.
The beneficial effect of this programme can be learnt according to the narration to such scheme, due to the valve contact device connecting part in valve stem and rocker body in this scheme, valve contact device can rotate on locating stud, so the direct friction mode of valve contact device and valve stem is rolling friction, the frictional loss of rolling friction is significantly less than the frictional loss of sliding friction, can significantly reduce frictional loss and also reduce the suffered lateral force of valve stem, improved speed of response and the sensitivity of valve simultaneously.
As can be seen here, the utility model compared with prior art, has outstanding substantive distinguishing features and progressive significantly, and the beneficial effect of its enforcement is also apparent.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is that valve contact device is the structural representation of the rocking arm of slip ring.
Fig. 3 is that valve contact device is the structural representation of the rocking arm of the slip ring of upper end open.
Fig. 4 is that valve contact device is the structural representation of the rocking arm of boss.
In figure, 1 is cam, and 2 is needle bearing, and 3 is rocker body, and 4 is locating stud, and 5 is bearing, and 6 is valve stem, and 7 is slip ring, and 8 is boss.
Embodiment
For clearly demonstrating the technical characterstic of this programme, below by an embodiment, and in conjunction with its accompanying drawing, this programme is set forth.
Can find out by accompanying drawing, a kind of engine valve rocker arm of this programme, the needle bearing contacting with cam on including rocker body and being riveted on rocker body, the one end near engine air valve rod in rocker body has through hole; In through hole, be fixedly inserted with locating stud; On locating stud, riveted joint has rotating valve contact device; The lower end of valve contact device contacts with engine air valve rod; Valve contacting point device is bearing; Valve contact device is the slip ring being riveted on locating stud; Valve contact device is the slip ring that is riveted on the upper end open on locating stud; Valve contact device is to be enclosed within the boss that the lower end on locating stud is cambered surface.
In work engineering, because valve contact device can rotate on locating stud, therefore the friction mode between valve contact device and valve stem is rolling friction, the frictional loss of rolling friction is significantly less than the frictional loss of sliding friction, can significantly reduce frictional loss and also reduce the suffered lateral force of valve stem, improved speed of response and the sensitivity of valve simultaneously.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (5)
1. an engine valve rocker arm, the needle bearing contacting with cam on including rocker body and being riveted on rocker body, is characterized in that: the one end near engine air valve rod in described rocker body has through hole; In described through hole, be fixedly inserted with locating stud; On described locating stud, riveted joint has rotating valve contact device; The lower end of described valve contact device contacts with engine air valve rod.
2. a kind of engine valve rocker arm according to claim 1, is characterized in that: described valve contacting point device is bearing.
3. a kind of engine valve rocker arm according to claim 1, is characterized in that: described valve contact device is the slip ring being riveted on locating stud.
4. a kind of engine valve rocker arm according to claim 1, is characterized in that: described valve contact device is the slip ring that is riveted on the upper end open on locating stud.
5. a kind of engine valve rocker arm according to claim 1, is characterized in that: described valve contact device is to be enclosed within the boss that the lower end on locating stud is cambered surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320879408.1U CN203640794U (en) | 2013-12-30 | 2013-12-30 | Engine valve rocker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320879408.1U CN203640794U (en) | 2013-12-30 | 2013-12-30 | Engine valve rocker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203640794U true CN203640794U (en) | 2014-06-11 |
Family
ID=50872048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320879408.1U Expired - Lifetime CN203640794U (en) | 2013-12-30 | 2013-12-30 | Engine valve rocker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203640794U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670563A (en) * | 2013-12-30 | 2014-03-26 | 绵阳富临精工机械股份有限公司 | Engine valve rocker |
-
2013
- 2013-12-30 CN CN201320879408.1U patent/CN203640794U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103670563A (en) * | 2013-12-30 | 2014-03-26 | 绵阳富临精工机械股份有限公司 | Engine valve rocker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140611 |
|
| CX01 | Expiry of patent term |