CN212774446U

CN212774446U - Engine rocker arm

Info

Publication number: CN212774446U
Application number: CN202021559542.XU
Authority: CN
Inventors: 吴世鹏; 王利乐; 胡忠义; 覃明智
Original assignee: Guangxi Yuchai Machinery Co Ltd
Current assignee: Guangxi Yuchai Marine and Genset Power Co Ltd
Priority date: 2020-07-31
Filing date: 2020-07-31
Publication date: 2021-03-23
Anticipated expiration: 2030-07-31

Abstract

The utility model discloses an engine rocker arm, including locating the horizontal oil duct of cylinder head upper rocker arm in with locating the rocking arm, lie in the one end outer wall that is close to valve adjusting screw on the rocking arm be equipped with the jet orifice of horizontal oil duct intercommunication. The utility model discloses an engine rocker arm, structural design is reasonable, belongs to engine accessories technical field, can adapt to the various slope installation angles of engine, and the valve of higher one side, the unable engine oil that obtains of valve bridge when can solving the slope installation of V type machine cylinder head lead to lubricated bad, the relatively poor scheduling problem of valve cooling, can guarantee that the engine valve is lubricated, cooled off.

Description

Engine rocker arm

Technical Field

The utility model relates to an engine attachment technique, more specifically say, it relates to an engine rocking arm.

Background

The engine oil flows in from the valve rocker shaft of the engine, then reaches the vertical oil duct of the valve adjusting screw vertically downwards through the transverse oil duct in the valve rocker, and then flows out from the periphery of the ball head. The engine oil flowing out of the ball head naturally flows to the valve along the valve bridge under the action of gravity to achieve the purpose of lubricating and cooling the valve.

The engine oil for lubricating and cooling the valve in the prior art is supplied by gravity flow, and when the engine oil is applied to a V-shaped engine or an engine is obliquely installed, the engine oil cannot flow to the valve on the higher side by gravity, and the poor lubrication and overheating of the valve can be caused by the lack of the engine oil, so that the engine is damaged finally.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to some not enough of the above-mentioned of prior art, the utility model aims at providing a can guarantee lubricated, refrigerated engine rocking arm of engine valve.

In order to achieve the above object, the utility model provides an engine rocker arm, including locating the cylinder head and going up the rocking arm and locating the horizontal oil duct in the rocking arm, lie in on the rocking arm be close to valve adjusting screw the one end outer wall be equipped with the jet orifice of horizontal oil duct intercommunication.

Furthermore, one end of the rocker arm is provided with a mounting hole matched with the valve adjusting screw, and the jet hole extends to the hole wall of the mounting hole.

Further, the diameter of the injection hole is between 0.5mm and 3 mm.

Furthermore, the hole wall of the mounting hole is provided with an annular oil groove, and the jet holes extend to the groove wall of the annular oil groove.

Further, the orifice of the injection hole extends obliquely upward.

Advantageous effects

Compared with the prior art, the utility model discloses an engine rocker's beneficial effect as follows:

the engine rocker arm of the utility model can adapt to various inclined installation angles of the engine, and can solve the problems that the valve and the valve bridge on the higher side cannot obtain engine oil when the cylinder cover of the V-shaped engine is obliquely installed, so that the lubrication is poor, the valve cooling is poor, and the like; the engine valve can be guaranteed to be lubricated and cooled, the normal operation of the engine is guaranteed, and the engine is prevented from being damaged.

Drawings

FIG. 1 is a top view of an engine rocker arm according to the present invention;

FIG. 2 is a side view of the engine rocker arm of the present invention;

FIG. 3 is a sectional view of the engine rocker arm of the present invention mounted on a cylinder head;

FIG. 4 is a top view of the engine rocker arm of the present invention mounted on a cylinder head;

fig. 5 is an enlarged cross-sectional view of a partial structure of the engine rocker arm of the present invention.

In the figure: 1. a rocker arm; 2. a transverse oil passage; 3. an air valve adjusting screw; 4. an injection hole; 5. a cylinder head; 6. A rocker shaft; 7. a valve bridge; 8. a ball head; 9. mounting holes; 10. an annular oil groove; 11. and (4) air valves.

Detailed Description

The present invention will be further described with reference to the following examples, which are not intended to limit the scope of the present invention, but are intended to be covered by the appended claims in any way.

The specific embodiment of the present invention is such: referring to fig. 1-5, the engine rocker arm comprises a rocker arm 1 arranged on a cylinder cover 5 and a transverse oil duct 2 arranged in the rocker arm 1, wherein a rocker arm shaft 6, the rocker arm 1, a valve bridge 7, a ball head 8, a valve adjusting screw 3 and a valve 11 are arranged on the cylinder cover 5, the cylinder cover 5 is a cylinder cover of a V-shaped engine, and an injection hole 4 communicated with the transverse oil duct 2 is formed in the outer wall of one end, close to the valve adjusting screw 3, of the rocker arm 1.

When the cylinder head 5 of the V-type engine is inclined, the upper valve 11 is high, and the engine oil flowing by gravity cannot lubricate the upper valve 11.

In the engine rocker arm, the side wall of the upper end of the rocker arm 1 is provided with the jet hole 4, lubricating oil can be sprayed out from the jet hole 4, then the side wall of the valve 11 positioned above is lubricated, reliable cooling and lubrication of the valve 11 are realized, and the normal work of the valve 11 is ensured. Therefore, the engine rocker arm can adapt to various inclined installation angles of an engine, can solve the problems that the valve 11 and the valve bridge 7 on the higher side cannot obtain engine oil when the V-shaped engine cylinder cover 5 is obliquely installed, so that poor lubrication, poor cooling of the valve 11 and the like are caused, can ensure the lubrication and cooling of the engine valve, ensure the normal operation of the engine and prevent the engine from being damaged.

In the present embodiment, one end of the rocker arm 1 is provided with a mounting hole 9 adapted to the valve adjusting screw 3, and the injection hole 4 extends to the hole wall of the mounting hole 9 so as to communicate with the lateral oil passage 2.

In the present embodiment, the diameter of the injection hole 4 is between 0.5mm and 3mm, and the shape of the injection hole 4 includes, but is not limited to, a circular hole, a trumpet hole, and an elliptical hole, and the injection hole direction includes, but is not limited to, a horizontal angle and an inclined angle. So that the injection hole 4 can inject the lubricating oil liquid to the upper side wall of the valve 11.

In this embodiment, the hole wall of the mounting hole 9 is provided with an annular oil groove 10, the jet hole 4 extends to the groove wall of the annular oil groove 10, the annular oil groove 10 is communicated with the jet hole 4 and the transverse oil passage 2, and the jet hole 4 can be communicated with the annular oil groove 10 through the annular oil groove 10, so that the jet hole 4 can be smooth.

In this embodiment, the orifice of the injection hole 4 is provided to extend obliquely upward, and the orifice is directed toward the upper side wall of the valve bridge 7, and can inject the lubricating oil upward.

The above is only a preferred embodiment of the present invention, and it should be noted that for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which will not affect the utility of the invention and the utility of the patent.

Claims

1. The engine rocker arm comprises an upper rocker arm (1) arranged on a cylinder cover (5) and a transverse oil duct (2) arranged in the rocker arm (1), and is characterized in that a spray hole (4) communicated with the transverse oil duct (2) is formed in the outer wall of one end, close to a valve adjusting screw (3), of the rocker arm (1).

2. An engine rocker arm according to claim 1, characterized in that one end of the rocker arm (1) is provided with a mounting hole (9) adapted to a valve adjusting screw (3), and the injection hole (4) extends to the wall of the mounting hole (9).

3. An engine rocker arm according to claim 2, characterised in that the diameter of the injection holes (4) is between 0.5mm and 3 mm.

4. An engine rocker arm according to claim 2 or 3, characterized in that the wall of the mounting hole (9) is provided with an annular oil groove (10), and the jet holes (4) extend to the wall of the annular oil groove (10).

5. An engine rocker arm according to claim 4, characterized in that the orifices of the injection holes (4) extend obliquely upwards.