CN206280116U - A kind of overhead cam rocker arrangement structure - Google Patents
A kind of overhead cam rocker arrangement structure Download PDFInfo
- Publication number
- CN206280116U CN206280116U CN201621334374.8U CN201621334374U CN206280116U CN 206280116 U CN206280116 U CN 206280116U CN 201621334374 U CN201621334374 U CN 201621334374U CN 206280116 U CN206280116 U CN 206280116U
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- CN
- China
- Prior art keywords
- valve
- rocker
- tappet
- diesel engine
- rocker body
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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.)
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- Valve-Gear Or Valve Arrangements (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
The utility model is related to a kind of diesel engine part, specifically a kind of arranged on top of diesel engine cam rocker arrangement structure, belongs to diesel engine part technical field.It includes rocker body, and rocker body connection valve one end is provided with the valve connecting groove of circular arc, and rocker body connection hydraulic tappet one end is provided with the tappet cavity of ball-and-socket type, tappet cavity outer surface welding hydraulic tappet intermediate plate；Rocker body middle part welding roll axle, roller shaft outer ring connects roller by bearing.It is the utility model simple structure, compact, reasonable, realize that valve gapless is adjusted by hydraulic tappet and valve rocker and cam, the cooperation of valve, workable, later maintenance is also easier, and maintenance cost is low；The rigidity of valve actuating mechanism is improved, diesel engine speed is improved, it is adaptable to high-speed diesel engine；Valve actuating mechanism is flexibly connected, and greatly reduces mechanical noise.
Description
Technical field
The utility model is related to a kind of diesel engine part, specifically a kind of arranged on top of diesel engine cam rocker arrangement knot
Structure, belongs to diesel engine part technical field.
Background technology
In the course of the work, rocking arm makes one end rise or decline to internal combustion engine in the presence of the pivoting leaf of camshaft（Directly
It is connecing or by gear driven part（Elevating lever）This measure is completed with push rod）, and the other end will act on valve rod, work as camshaft
Leaf make outside lever arm rise when, inside produce power will bear against on valve rod, so as to open application valve.When outside armed lever by
When the effect of camshaft allows to return, internal armed lever rises, it is allowed to which valve spring compresses closing function valve so that fresh
Air does work into cylinder mixed combustion, waste gas discharge cylinder body.
Conventional rocking arm has at present：
1st, lower arranging cam axle rocker arm body：Camshaft is mounted in crankcase, directly by camshaft timing gear and bent axle
Timing gears are meshed, and are driven by bent axle, camshaft rotation forces tappet effect push rod, drive rocking arm valve is opened and closed into row
Gas.This kind of structure participates in movement parts a lot, and rigidity is small, noise is big, is unsuitable for high speed machine.
2nd, overhead cam rocking arm：This kind of structure also belongs to and being rigidly connected, and needs to adjust gap between rocking arm and valve, noise compared with
Greatly.
The content of the invention
The purpose of this utility model is to overcome above-mentioned weak point, so as to provide a kind of overhead cam rocker arrangement knot
Structure, can be effectively improved the rigidity of valve actuating mechanism, improve diesel engine speed, while can be lowered using hydraulic tappet flexible connection
Noise and the reliability of increase parts work.
According to the technical scheme that the utility model is provided, a kind of overhead cam includes rocker body with rocker arrangement structure, its
It is characterized in：Rocker body connection valve one end is provided with the valve connecting groove of circular arc, and rocker body connection hydraulic tappet one end is provided with
The tappet cavity of ball-and-socket type, tappet cavity outer surface welding hydraulic tappet intermediate plate；Rocker body middle part welding roll axle, outside roller shaft
Circle connects roller by bearing.
Further, tappet cavity is provided with oilhole.
Further, roller surface is provided with nitriding layer.
Compared with the prior art the utility model has advantages below：
It is the utility model simple structure, compact, reasonable, by hydraulic tappet and valve rocker and cam, the cooperation of valve
Realize that valve gapless is adjusted, workable, later maintenance is also easier, and maintenance cost is low；Improve valve actuating mechanism
Rigidity, improves diesel engine speed, it is adaptable to high-speed diesel engine；Valve actuating mechanism is flexibly connected, and greatly reduces mechanical noise.
Brief description of the drawings
Fig. 1 is utility model works schematic diagram.
Fig. 2 is the utility model front view.
Fig. 3 is A-A sectional views in Fig. 2.
Fig. 4 is B-B sectional views in Fig. 2.
Description of reference numerals：1- rocker bodies, 2- hydraulic tappets intermediate plate, 3- bearings, 4- rollers, 5- roller shafts, 6- valves connect
Connect groove, 7- tappets cavity, 8- oilholes, A- valves, B- cams, C- hydraulic tappets.
Specific embodiment
The utility model will be further described with reference to the embodiment in accompanying drawing below：
As shown in Fig. 1 ~ 4, the utility model mainly includes rocker body 1, and the connection valve of rocker body 1 one end is provided with circular arc
Valve connecting groove 6, stem tip portion is contacted in stretching into valve connecting groove 6 with rocker body 1.
The connection hydraulic tappet of rocker body 1 one end is provided with the tappet cavity 7 of ball-and-socket type, and tappet cavity 7 is endured for connecting hydraulic pressure
The bulb end of post.Hydraulic tappet intermediate plate 2 is welded in the outer surface of tappet cavity 7, and hydraulic tappet intermediate plate 2 can will be connected to tappet cavity
Hydraulic tappet at 7 is clamped.
The tappet cavity 7 is provided with oilhole 8, by oilhole 8 to the hydraulic tappet bulb in tappet cavity 7
Addition lubricating oil.
The middle part welding roll axle 5 of rocker body 1, the outer ring of roller shaft 5 connects roller 4 by bearing 3.During work, cam is direct
Act on roller 4.
The surface of the roller 4 is provided with nitriding layer, and nitriding layer strengthens the wearability of the rubbing surface of roller 4.
The one end of the utility model device is crimped on valve top by valve connecting groove, and the rocking arm other end passes through
Sphere is flexibly connected with hydraulic tappet, and is clamped by hydraulic tappet intermediate plate.The lower cam end crimping roller surface of overhead.This reality
It is simple, compact, reasonable with new structure, realize valve continuously by hydraulic tappet and valve rocker and cam, the cooperation of valve
Gap is adjusted, and workable, later maintenance is also easier, and maintenance cost is low；The rigidity of valve actuating mechanism is improved, diesel oil is improved
Machine rotating speed, it is adaptable to high-speed diesel engine；Valve actuating mechanism is flexibly connected, and greatly reduces mechanical noise.
Claims (3)
1. a kind of overhead cam rocker arrangement structure, including rocker body（1）, it is characterized in that：Rocker body（1）Connection valve one end
It is provided with the valve connecting groove of circular arc（6）, rocker body（1）Connection hydraulic tappet one end is provided with the tappet cavity of ball-and-socket type（7）,
Tappet cavity（7）Weld hydraulic tappet intermediate plate in outer surface（2）；Rocker body（1）Middle part welding roll axle（5）, roller shaft（5）Outer ring
By bearing（3）Connection roller（4）.
2. a kind of overhead cam rocker arrangement structure as claimed in claim 1, it is characterized in that：The tappet cavity（7）On
It is provided with oilhole（8）.
3. a kind of overhead cam rocker arrangement structure as claimed in claim 1, it is characterized in that：The roller（4）Surface sets
There is nitriding layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621334374.8U CN206280116U (en) | 2016-12-06 | 2016-12-06 | A kind of overhead cam rocker arrangement structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621334374.8U CN206280116U (en) | 2016-12-06 | 2016-12-06 | A kind of overhead cam rocker arrangement structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206280116U true CN206280116U (en) | 2017-06-27 |
Family
ID=59075908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621334374.8U Active CN206280116U (en) | 2016-12-06 | 2016-12-06 | A kind of overhead cam rocker arrangement structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206280116U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437919A (en) * | 2016-12-06 | 2017-02-22 | 江苏四达动力机械集团有限公司 | Rocker arm device structure for overhead cam |
| CN107401552A (en) * | 2017-09-12 | 2017-11-28 | 台州威德隆机械有限公司 | A kind of durable type automobile rocker |
-
2016
- 2016-12-06 CN CN201621334374.8U patent/CN206280116U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437919A (en) * | 2016-12-06 | 2017-02-22 | 江苏四达动力机械集团有限公司 | Rocker arm device structure for overhead cam |
| CN107401552A (en) * | 2017-09-12 | 2017-11-28 | 台州威德隆机械有限公司 | A kind of durable type automobile rocker |
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