CN203308538U - Valve rocker - Google Patents
Valve rocker Download PDFInfo
- Publication number
- CN203308538U CN203308538U CN2013203979611U CN201320397961U CN203308538U CN 203308538 U CN203308538 U CN 203308538U CN 2013203979611 U CN2013203979611 U CN 2013203979611U CN 201320397961 U CN201320397961 U CN 201320397961U CN 203308538 U CN203308538 U CN 203308538U
- Authority
- CN
- China
- Prior art keywords
- needle bearing
- valve
- valve rocker
- axis hole
- circle
- 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)
Abstract
The utility model relates to the field of car engines and particularly relates to a valve rocker. The valve rocker comprises a rocker body (2) with a shaft hole (1) in the middle, wherein one end of the rocker body (2) is provided with a bolt (3) for supporting against a valve core to adjust a valve gap; the other end of the rocker body (2) is provided with a needle bearing (4) which is in contact with a cam. After the valve rocker provided by the utility model is used for a long time, errors are smaller and the service life is longer; in a use process, noises are smaller and heat is less.
Description
Technical field
The utility model relates to the motor car engine field, relates in particular to a kind of valve rocker.
Background technique
Valve rocker is the indispensable important mechanism of motor, between current cam due to motor and valve rocker, make contact movement, exist the contact friction phenomenon, and the valve rocker of prior art is a straight forming, so after having used of a specified duration, valve rocker contacts one side and can easily be worn with cam, between valve rocker and cam, will produce gap error like this, and working life is shorter, and when work is because there is the sliding friction phenomenon, so noise is larger, and fever phenomenon is also more serious.
Summary of the invention
Technical problem to be solved in the utility model is: provide a kind of and used for a long time that error is also less, working life is long, the less and less valve rocker that generates heat of noise while using.
The technological scheme that the utility model adopts is: a kind of valve rocker, comprise that its middle part has the rocking arm body of axis hole, described rocking arm body one end is provided be used to withstanding the bolt of valve inside valve gap adjustment, and the described rocking arm body the other end is provided with the needle bearing for contacting with cam.
Adopt above structure compared with prior art, the utlity model has following advantage: original integrated valve rocker is transformed into by needle bearing and rocking arm body and forms, needle bearing contacts with cam, so just can change sliding friction into rolling friction, so in use needle bearing wearing and tearing can be very not serious, make the working life of whole valve rocker longer, and noise is less and heating value is also less while using.
As preferably, the outer ring outer peripheral surface of described needle bearing and two end face joints are the circle cambered surface caved inward.Because can a little expand on both sides in the needle bearing outer ring when rotating, so the place that the needle bearing outer ring contacts with cam can be all generally both sides, needle bearing both sides, needle bearing outer ring outer peripheral surface and both ends of the surface joint are caved inward a bit, in the time of so just can guaranteeing work, whole needle bearing outer ring outer peripheral surface all contacts with cam, rather than outer peripheral surface both sides, smooth roll needle bearing outer ring contact with cam, but because the indent size of this inner concave arc surface is less, so on figure, can't see, and people's naked eyes be can't see more.
As preferably, described needle bearing is that high-abrasive material is made.The working life of needle bearing is longer like this.
As preferably, between described axis hole and bolt, be provided with a lightening hole.Can save material like this, reduce production costs.
As preferably, the distance between the described needle bearing center of circle and the axis hole center of circle is less than the distance between described bolt and the axis hole center of circle.So just can by cam, rotate the keying that drives valve more easily.
The accompanying drawing explanation
Fig. 1 is the structural representation of a kind of valve rocker of the utility model.
Fig. 2 is the sectional view of the needle bearing of a kind of valve rocker of the utility model.
As shown in the figure: 1, axis hole; 2, rocking arm body; 3, bolt; 4, needle bearing; 5, lightening hole; 6, needle bearing outer ring; 7, needle roller.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described further, but the utility model is not limited only to following embodiment.
As shown in the figure: a kind of valve rocker, comprise that its middle part has the rocking arm body 2 of axis hole 1, described rocking arm body 2 one ends are provided with the bolt 3 be used to withstanding the valve inside valve gap adjustment, and described rocking arm body 2 the other ends are provided with the needle bearing 4 for contacting with cam.Described needle bearing comprises needle bearing outer ring 6 and the many needle rollers 7 that coordinate with the needle bearing outer ring.
The outer ring outer peripheral surface of described needle bearing 4 and two end face joints are the circle cambered surface caved inward.Because the cambered surface size that this caves in is very little, so do not show in the drawings.
Described needle bearing 4 is made for high-abrasive material.Described high-abrasive material is high manganese.
Between described axis hole 1 and bolt 3, be provided with a lightening hole 5.
Distance between described needle bearing 4 centers of circle and axis hole 1 center of circle is less than the distance between described bolt 3 and axis hole 1 center of circle.
Claims (5)
1. valve rocker, comprise that its middle part has the rocking arm body (2) of axis hole (1), described rocking arm body (2) one ends are provided with the bolt (3) be used to withstanding the valve inside valve gap adjustment, it is characterized in that: described rocking arm body (2) the other end is provided with the needle bearing (4) for contacting with cam.
2. a kind of valve rocker according to claim 1 is characterized in that: the outer ring outer peripheral surface of described needle bearing (4) and two end face joints are the circle cambered surface caved inward.
3. a kind of valve rocker according to claim 1, it is characterized in that: described needle bearing (4) is made for high-abrasive material.
4. a kind of valve rocker according to claim 1, is characterized in that: be provided with a lightening hole (5) between described axis hole (1) and bolt (3).
5. a kind of valve rocker according to claim 1 is characterized in that: the distance between described needle bearing (4) center of circle and axis hole (1) center of circle is less than the distance between described bolt (3) and axis hole (1) center of circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203979611U CN203308538U (en) | 2013-07-05 | 2013-07-05 | Valve rocker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203979611U CN203308538U (en) | 2013-07-05 | 2013-07-05 | Valve rocker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203308538U true CN203308538U (en) | 2013-11-27 |
Family
ID=49614753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203979611U Expired - Fee Related CN203308538U (en) | 2013-07-05 | 2013-07-05 | Valve rocker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203308538U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104128609A (en) * | 2014-07-21 | 2014-11-05 | 苏州科瓴精密机械科技有限公司 | Four-stroke engine rocker mechanism and manufacturing method thereof |
-
2013
- 2013-07-05 CN CN2013203979611U patent/CN203308538U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104128609A (en) * | 2014-07-21 | 2014-11-05 | 苏州科瓴精密机械科技有限公司 | Four-stroke engine rocker mechanism and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131127 Termination date: 20160705 |