CN210239771U

CN210239771U - Valve rocker

Info

Publication number: CN210239771U
Application number: CN201921165885.5U
Authority: CN
Inventors: Huiming Yang; 杨慧明; Zhiming Cheng; 程志明; Daoqing Zhu; 朱道庆
Original assignee: Zhejiang Painier Technology Inc
Current assignee: Zhejiang Painier Technology Inc
Priority date: 2019-07-24
Filing date: 2019-07-24
Publication date: 2020-04-03
Anticipated expiration: 2029-07-24

Abstract

The utility model discloses a valve rocker, including valve rocker body, bearing and wear-resisting mold insert, wear-resisting mold insert sets up at valve rocker body lower surface, bearing passes through interference mode and valve rocker body cooperation installation, the one end upside of valve rocker body sets up threaded hole, the inside and outside valve adjusting screw threaded connection of screw hole, and the middle part upside of valve rocker body has seted up the lubricating oil hole, and the other end upside of valve rocker body is the oil pump drive face, and the front end that valve rocker body and bearing correspond has been seted up with the hole, hole and lubricating oil hole intercommunication, and bearing and hole interference fit are connected. This valve rocker contacts with outside cam through wear-resisting mold insert, and needle bearing contacts with outside rocking arm axle, but its mechanical resistance of greatly reduced simultaneously through removable needle bearing, can increase its life.

Description

Valve rocker

Technical Field

The utility model relates to an internal-combustion engine technical field specifically is a valve rocker.

Background

The valve rocker arm changes the direction of motion and acting force transmitted by the push rod and the cam and transmits the motion and acting force to the valve to open.

However, most of the existing valve rocker structures are that the inner hole of the valve rocker is directly contacted with a rocker shaft, and the valve rocker adopts the working principle that an oil film is generated through reasonable clearances, and has the problems of short service life and the like due to direct contact.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current defect, provide a valve rocker, contact with outside cam through wear-resisting mold insert, needle bearing contacts with outside rocking arm axle, but its mechanical resistance of greatly reduced, simultaneously through removable needle bearing, can increase its life, can effectively solve the problem in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: the valve rocker comprises a valve rocker body, a needle bearing and a wear-resistant insert, wherein the wear-resistant insert is arranged on the lower surface of the valve rocker body, and the needle bearing is installed in a fit manner with the valve rocker body in an interference manner.

As a preferred technical scheme of the utility model, threaded hole is seted up to the one end upside of valve rocker body, the inside and the outside valve adjusting screw threaded connection of screw hole, and the middle part upside of valve rocker body has seted up the lubrication hole, the other end upside of valve rocker body is the oil pump drive face, the front end that valve rocker body and bearing correspond has been seted up with the hole, hole and lubrication hole intercommunication, and bearing and hole interference fit are connected.

As an optimal technical scheme of the utility model, bearing's side upper end is equipped with the inlet port, the lubricating oil pore alignment on inlet port and the valve rocker body.

Compared with the prior art, the beneficial effects of the utility model are that: this valve rocker contacts with outside cam through wear-resisting mold insert, and needle bearing contacts with outside rocking arm axle, but its mechanical resistance of greatly reduced simultaneously through removable needle bearing, can increase its life.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: the valve rocker comprises a valve rocker body 1, a threaded hole 11, a lubricating oil hole 12, an oil pump driving surface 13, an inner hole 14, a needle roller bearing 2, an oil inlet hole 21 and a wear-resistant insert 3.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: a valve rocker comprises a valve rocker body 1, a needle bearing 2 and a wear-resistant insert 3, wherein the wear-resistant insert 3 is arranged on the lower surface of the valve rocker body 1, the wear-resistant insert 3 can be welded on the corresponding position of the valve rocker body 1 in a welding mode and is contacted with a cam on an external cam shaft to reduce the wear to the valve rocker body 1, the needle bearing 2 is matched and installed with the valve rocker body 1 in an interference mode, a threaded hole 11 is formed in the upper side of one end of the valve rocker body 1, the inside of the threaded hole 11 is in threaded connection with an external valve adjusting screw and is used for driving a valve to open and close, a lubricating oil hole 12 is formed in the upper side of the middle of the valve rocker body 1, an oil pump driving surface 13 is arranged on the upper side of the other end of the valve rocker body 1, the oil pump plunger matched with the surface is driven by the swing motion of the valve rocker, the inner hole 14 is communicated with the lubricating oil hole 12, the needle roller bearing 2 is connected with the inner hole 14 in an interference fit mode, the upper end of the side face of the needle roller bearing 2 is provided with an oil inlet hole 21, the oil inlet hole 21 is aligned with the lubricating oil hole 12 in the valve rocker body 1 and used for circulating lubricating oil, the needle roller bearing 2 is lubricated, the whole valve rocker is in contact with an external cam through the wear-resistant insert 3, the needle roller bearing 2 is in contact with an external rocker shaft, mechanical resistance of the valve rocker can be greatly reduced, and meanwhile, the service life of the valve rocker can be prolonged through the replaceable.

The utility model discloses a wear-resisting mold insert 3 contacts with outside cam, and bearing 2 contacts with outside rocking arm axle, but its mechanical resistance of greatly reduced through removable bearing 2, can increase its life simultaneously.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A valve rocker arm, characterized by: the wear-resistant valve rocker comprises a valve rocker body (1), a needle bearing (2) and a wear-resistant insert (3), wherein the wear-resistant insert (3) is arranged on the lower surface of the valve rocker body (1), and the needle bearing (2) is installed in a fit mode with the valve rocker body (1) in an interference mode.

2. A valve rocker arm as set forth in claim 1, wherein: the valve rocker arm comprises a valve rocker arm body (1), and is characterized in that a threaded hole (11) is formed in the upper side of one end of the valve rocker arm body (1), the inside of the threaded hole (11) is in threaded connection with an external valve adjusting screw, a lubricating oil hole (12) is formed in the upper side of the middle of the valve rocker arm body (1), an oil pump driving surface (13) is arranged on the upper side of the other end of the valve rocker arm body (1), the front end of the valve rocker arm body (1) corresponding to a needle bearing is formed in a hole (14), the hole (14) is communicated with the lubricating oil hole (12), and the needle bearing (2) is in.

3. A valve rocker arm as set forth in claim 1, wherein: and the upper end of the side surface of the needle roller bearing (2) is provided with an oil inlet hole (21), and the oil inlet hole (21) is aligned with a lubricating oil hole (12) on the valve rocker body (1).