CN201439796U

CN201439796U - Engine connecting rod with lubricant channel

Info

Publication number: CN201439796U
Application number: CN2009203035613U
Authority: CN
Inventors: 袁爽; 李书福; 杨健; 赵福全
Original assignee: Zhejiang Geely Holding Group Co Ltd; Zhejiang Geely Automobile Research Institute Co Ltd
Current assignee: Zhejiang Geely Holding Group Co Ltd; Zhejiang Geely Automobile Research Institute Co Ltd
Priority date: 2009-05-25
Filing date: 2009-05-25
Publication date: 2010-04-21
Anticipated expiration: 2019-05-25

Abstract

The utility model discloses an engine connecting rod with a lubricant channel, which comprises a rod body, a connecting-rod big-end and a connecting-rod small-end which are arranged at the two ends of the rod body and are connected with the rod body to form a whole body, wherein a pin hole matched with a piston pin is arranged on the connecting-rod small-end, and a shaft hole for sleeving a crankshaft is arranged on the connecting-rod big-end; a lubricant through hole is arranged on the side wall of the pin hole, and a lubricant channel which penetrates through the connecting-rod small-end and the connecting-rod big-end is arranged inside the rod body along the length direction, so that the piston pin and the pin hole can be adequately lubricated, the wear rate is reduced, and the service life of the connecting rod is prolonged. The utility model has simple structure, and is suitable for mass production.

Description

The engine link of band oil leab

Technical field

The utility model relates to a kind of Connecting Rod of Gasoline Engine, especially relates to a kind of engine link with oil leab.

Background technique

At present, known Connecting Rod of Gasoline Engine is connected with piston by wrist pin at connecting rod small end one end, be connected with bent axle by connecting rod bearing cap at connnecting rod big end one end, the pin-and-hole sidewall that wrist pin is installed at connecting rod small end is provided with oil through, the lubricant oil of cooling piston is penetrated in the pin-and-hole by this oil through, thereby pin-and-hole and the wrist pin that is rotatably assorted with it are lubricated, because the operating temperature height of wrist pin, impact force is big, therefore, only rely on the oil through lubrication effect of pin-and-hole sidewall undesirable, the wearing and tearing of wrist pin and connecting rod pin-and-hole are big, and then shorten its working life.

A kind of patent No. is the improved engine link of ZL200620080893.6, the small end that is connected with piston is wedge shape, can alleviate connecting rod weight, and make in the easier slit that enters wrist pin and pin-and-hole by the wedge shape end face of lubricant oil, because the slit is very little, its lubricant oil that can enter is very limited, so its lubrication effect is still not good enough.

The model utility content

The utility model is in order to overcome in the prior art the lubricated not enough of wrist pin and pin-and-hole to be caused wrist pin and the big deficiency of pin-and-hole wearing and tearing, and a kind of engine link that can carry out sufficient lubrication to wrist pin and pin-and-hole, be with oil leab is provided.

To achieve these goals, the utility model is by the following technical solutions: a kind of engine link with oil leab, comprise shaft and be located at shaft two ends and connecting rod small end that is connected as a single entity with it and connnecting rod big end, on connecting rod small end, offer the pin-and-hole that cooperates with wrist pin, on connnecting rod big end, be provided with the axis hole that is used for the suit bent axle, on the sidewall of pin-and-hole, be provided with oil through, be provided with the oil leab that runs through connnecting rod big end and connecting rod small end in shaft inside along its length direction.Because the operating temperature height of wrist pin, suffered impact force is big, and often be in the long time continuous working state, therefore the quality of its lubrication effect will directly have influence on the wearing and tearing between wrist pin and the pin-and-hole, and and then the decision connecting rod working life, connecting rod of the present utility model is set up the oil leab that runs through connnecting rod big end and connecting rod small end along its length direction in shaft inside, thereby guide to the lubricant oil in the connnecting rod big end axis hole in the pin-and-hole of connecting rod small end by oil leab, carry out dual lubricated to pin-and-hole and wrist pin, thereby can improve its lubrication effect greatly, reduce its wear rate, increase the service life.

As preferably, described oil leab is positioned on the line of centres of pin-and-hole and axis hole, and described oil leab diameter is 1.5 millimeters～3 millimeters.With diameter is that 1.5 millimeters～3 millimeters oil leab is located on the line of centres of pin-and-hole and axis hole, can make abundant lubricant oil be penetrated in the slit of lubricant oil road junction both sides pin-and-hole and wrist pin equably by oil leab, further improve its lubrication effect, oil leab can not reduce the mechanical strength of connecting rod again simultaneously.

Therefore, the utlity model has following beneficial effect: (1) sets up oil leab, improves the lubrication effect of wrist pin and pin-and-hole, prolongs its working life; (2) simple in structure, the convenient manufacturing do not increase cost of production.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is a plan view of the present utility model.

Embodiment

Below in conjunction with accompanying drawing the utility model is further described.

As Fig. 1, among the embodiment shown in Figure 2, the engine link of the band oil leab that the utility model provides comprises shaft 1 and is located at shaft 1 two ends and connecting rod small end 3 that is connected as a single entity with it and connnecting rod big end 2, the three uses the forging type once-through, on connecting rod small end 3, offer the pin-and-hole 5 that cooperates with wrist pin, on connnecting rod big end 2, be provided for the axis hole 4 of suit bent axle, oil through 6 is set on the sidewall of pin-and-hole 5, offer the oil leab 7 that runs through connnecting rod big end 2 and connecting rod small end 3 in shaft 1 inside along the line of centres of pin-and-hole 5 and axis hole 4, the diameter of oil leab 7 is 2 millimeters.

During engine operation, the lubricant oil of cooling piston can flow in the pin-and-hole 5 by oil through 6, thereby pin-and-hole 5 and the wrist pin that is rotatably assorted with it are lubricated, simultaneously, lubricant oil in the axis hole 4 also can flow in the pin-and-hole 5 by oil leab 7, lubricant oil is strengthened lubricating wrist pin and pin-and-hole 5 equably to the infiltration of the hole wall both sides of pin-and-hole 5.

Claims

1. engine link with oil leab, the connecting rod small end (3) and the connnecting rod big end (2) that comprise shaft (1) and be located at shaft (1) two ends and be connected as a single entity with it, on connecting rod small end (3), offer the pin-and-hole (5) that cooperates with wrist pin, on connnecting rod big end (2), be provided with the axis hole (4) that is used for the suit bent axle, on the sidewall of pin-and-hole (5), be provided with oil through (6), it is characterized in that, be provided with the oil leab (7) that runs through connnecting rod big end (2) and connecting rod small end (3) along its length direction in shaft (1) inside.

2. the engine link of band oil leab according to claim 1, described oil leab (7) are positioned on the line of centres of pin-and-hole (5) and axis hole (4).

3. the engine link of band oil leab according to claim 1 and 2, described oil leab (7) diameter is 1.5 millimeters～3 millimeters.