CN2775306Y - Air valve swinging arm device bottom placed cam valve actuating mechanism of engine - Google Patents
Air valve swinging arm device bottom placed cam valve actuating mechanism of engine Download PDFInfo
- Publication number
- CN2775306Y CN2775306Y CN 200520033499 CN200520033499U CN2775306Y CN 2775306 Y CN2775306 Y CN 2775306Y CN 200520033499 CN200520033499 CN 200520033499 CN 200520033499 U CN200520033499 U CN 200520033499U CN 2775306 Y CN2775306 Y CN 2775306Y
- Authority
- CN
- China
- Prior art keywords
- valve
- rocker
- spring
- engine
- valve 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 - Fee Related
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- Valve-Gear Or Valve Arrangements (AREA)
- Valve Device For Special Equipments (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The utility model discloses a valve rocker device of a downwards placed cam type gas distributing mechanism of an engine. A valve rocker (1) is assembled on a rocker supporting seat (2) through a shaft (3), a spring (10) is arranged on the valve rocker (1), one end of the spring is butted with the rocker supporting seat (2), and the other end is butted with a driven arm of the valve rocker (1). The utility model can eliminate clearances of a plurality of connecting positions of a gas distributing transmission system of the downwards placed cam type gas distributing mechanism of the engine, and the clearance variation of the connecting positions under the influence of thermal expansion, and transmission noise generated by the connecting positions of the gas distributing transmission system can be reduced.
Description
Technical field
The utility model relates to a kind of engine lower cammingly distribution device field, particularly a kind of valve rocker apparatus that can reduce engine lower cammingly distribution device noise.
Background technique
In engine lower cammingly distribution device, in order to guarantee the motor proper functioning, engine valve and valve rocker slave arm end must leave an amount of valve clearance.But engine lower cammingly distribution device is connected to form by multi-parts such as valve, rocker arm support, valve rocker, push rod, lower shake-changing arm, lower shake-changing arm axle, camshaft, camshafts, all there is certain interval in a plurality of joints of its distribution transmission system, motor is when work, when valve cam rotates to when closing valve, the tension force of valve spring can cause that each joint of distribution transmission system produces irregular impact, and these joints also can exist the gap to change under thermal expansion influence, and the many places connection part that causes the distribution transmission system thus produces the transmission noise.
Summary of the invention
The purpose of this utility model is, a kind of valve rocker apparatus of engine lower cammingly distribution device is provided, it can eliminate the gap of a plurality of joints of the distribution transmission system of engine lower cammingly distribution device, and the gap of these joints under thermal expansion influence changes the transmission noise that the connection part of reduction distribution transmission system produces.
The purpose of this utility model is achieved in that valve rocker is assemblied on the rocker arm support by axle, and it is characterized in that: valve rocker is provided with spring, and spring one end props up rocker arm support, and the other end props up the slave arm of valve rocker.
The spring that is provided with on the valve rocker leaves tension force.
Owing to adopted such scheme, valve rocker is provided with spring, and spring one end props up rocker arm support, and the other end props up the slave arm of valve rocker, makes the spring that is provided with on the valve rocker leave tension force.When valve cam rotates to when opening valve, a plurality of joints of distribution transmission system need overcome the even no gap of resistance of valve spring; When valve cam rotates to when closing valve, except that keeping the valve clearance for the motor proper functioning, all the other joints of distribution transmission system all do not have the gap under the tension force effect of priming lever spring, effectively remedying simultaneously the gap, joint that causes because of each component material heat expansion of distribution transmission system changes, eliminated the irregular impact that distribution transmission system joint that the tension force of valve spring causes produces thus, reduce the noise source that produces noise, reduced the transmission noise effectively.
The utility model is simple in structure, and the transmission system that efficiently solves engine lower cammingly distribution device produces the problem of transmission noise, and noise reduction is obvious, is beneficial to enforcement.
The utility model is described in further detail below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is the structural representation of engine lower cammingly distribution device;
Fig. 2 is plan structure figure of the present utility model.
In the accompanying drawing, 1 is valve rocker, and 2 is rocker arm support, and 3 is axle, and 4 is valve adjusting screw, and 5 is locking nut, and 6 is valve, and 7 is push rod, and 8 is lower shake-changing arm, and 9 is cam, and 10 is spring, and 11 is camshaft, and 12 is the lower shake-changing arm axle.
Embodiment
Referring to Fig. 1, Fig. 2, valve rocker 1 is assemblied on the rocker arm support 2 by axle 3, and valve rocker 1 is provided with spring 10, and this spring adopts the torsion spring effect best.Spring 10 is enclosed within on the valve rocker 1, and an end props up rocker arm support 2, and the other end props up the slave arm bottom of valve rocker 1, colludes to form on slave arm and fixes.Spring 10 leaves tension force, and its tension force upwards pushes up the slave arm of valve rocker 1 after installing, and the master arm that makes valve rocker 1 is to pressing down.The valve adjusting screw 4 that is threaded on the slave arm of valve rocker 1, and with locking nut 5 lockings, make it and valve 6 between keep an amount of gap B, C.Spherical groove on the master arm of valve rocker 1 cooperates with the protruding ball of push rod 7 upper ends, forms to connect A; The protruding ball of push rod 7 lower ends cooperates with spherical groove on lower shake-changing arm 8 driven ends, forms to connect D, E.Lower shake-changing arm 8 is connected F with lower shake-changing arm axle 12 Spielpassung, and lower shake-changing arm 8 drive ends contact with cam 9, forms to connect G, H, and cam 9 usefulness keys circumferentially are fixedly connected on the camshaft 11.The gap that the tension force of spring 10 makes joint A, D, E, F, G, H rotates at valve cam 9 and is eliminated when closing valve, eliminate the irregular impact that distribution transmission system joint A, D, E, F, G, H that the tension force of valve spring (not shown) causes produce thus, reduced the transmission noise.
During the work of engine lower cammingly distribution device, camshaft 11 rotatablely moves, and by cam 9, lower shake-changing arm 8, push rod 7, valve rocker 1 transmission, drives valve 6 and opens or close, 2 is rocker arm support, regulates valve 6 gap B, C by valve adjusting screw 4.When valve cam 9 rotates to when opening valve, the slave arm of valve rocker 1 is pushed valve 6 downwards open, eight joint A, B of distribution transmission system, C, D, E, F, G, H need overcome the even no gap of resistance of valve spring, do not have irregular impact, do not produce the transmission noise; When valve cam 9 rotates to when closing valve, except that keeping valve clearance B, C for the motor proper functioning, all the other joint A, D of distribution transmission system, E, F, G, H all do not have the gap under the tension force effect of priming lever spring 10, effectively remedying simultaneously the gap, joint that causes because of each component material heat expansion of distribution transmission system changes, form operation under the state of no gap, eliminated the irregular impact that distribution transmission system joint that the tension force of valve spring causes produces thus, reduce the noise source that produces noise, reduced the transmission noise.
Claims (2)
1. the valve rocker apparatus of an engine lower cammingly distribution device, valve rocker (1) is assemblied on the rocker arm support (2) by axle (3), it is characterized in that: valve rocker (1) is provided with spring (10), spring (10) one ends prop up rocker arm support (2), and the other end props up the slave arm of valve rocker (1).
2. the valve rocker apparatus of engine lower cammingly distribution device according to claim 1 is characterized in that: valve rocker (1) is gone up the spring (10) that is provided with and is left tension force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520033499 CN2775306Y (en) | 2005-03-14 | 2005-03-14 | Air valve swinging arm device bottom placed cam valve actuating mechanism of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520033499 CN2775306Y (en) | 2005-03-14 | 2005-03-14 | Air valve swinging arm device bottom placed cam valve actuating mechanism of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2775306Y true CN2775306Y (en) | 2006-04-26 |
Family
ID=36749623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520033499 Expired - Fee Related CN2775306Y (en) | 2005-03-14 | 2005-03-14 | Air valve swinging arm device bottom placed cam valve actuating mechanism of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2775306Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013067861A1 (en) * | 2011-11-08 | 2013-05-16 | Wang Meixia | Relief element oscillating-type valve mechanism and associated internal combustion engine |
-
2005
- 2005-03-14 CN CN 200520033499 patent/CN2775306Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013067861A1 (en) * | 2011-11-08 | 2013-05-16 | Wang Meixia | Relief element oscillating-type valve mechanism and associated internal combustion engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |