CN202926424U

CN202926424U - Intermittent oil supply structure of engine rocker

Info

Publication number: CN202926424U
Application number: CN 201220671863
Authority: CN
Inventors: 江欢健; 徐杰
Original assignee: Fenghua City Dynamic Power Machine Accessory Co Ltd
Current assignee: Fenghua City Dynamic Power Machine Accessory Co Ltd
Priority date: 2012-12-04
Filing date: 2012-12-04
Publication date: 2013-05-08
Anticipated expiration: 2022-12-04

Abstract

The utility model relates to an intermittent oil supply structure of an engine rocker. The intermittent oil supply structure comprises a rocker shaft arranged in the rocker, wherein the rocker shaft is provided with opposite shaft holes, an oil hole is formed in a long arm of the rocker and is provided with an oil throttling nozzle at the end part of the long arm, a bushing is arranged between an outer surface of the rocker shaft and the rocker, and the bushing and the rocker are fixedly connected; and an inner surface, opposite to the shaft holes, of the bushing is provided with at least one groove and at least one oil introduction hole. The two shaft holes are respectively communicated with the oil introduction hole so as to supply oil to the oil hole in one step, and the time of communication between the shaft holes of the rocker shaft and the oil hole is extremely short due to the rotation speed of the rocker, so that a large amount of lubricating oil is saved.

Description

A kind of engine rocker gap oil supply structure

Technical field

The invention belongs to engine art, the mean engine accessory refers to a kind of engine rocker oil supply structure especially.

Background technique

Engine rocker is a double-arm lever, and take the intermediate rockers axis hole as fulcrum, power change direction and size that push rod is transmitted pass to valve again and make valve event.Two arms of rocking arm are not isometric, are divided into long arm end and galianconism end, and wherein long arm end is used for promoting valve.Be provided with oilhole in the arm end of rocking arm.

Rocker shaft hole and the fuel feeding between oilhole that existing technology adopts are continuous oil supplies in the every turning course of rocking arm, have increased that fuel delivery causes wasting and in the situation that the oil pressure deficiency can produce mechanism wear.

The model utility content

The purpose of this utility model is to provide a kind of engine rocker gap oil supply structure, has reduced the Lifetime of rocker shaft hole and oilhole, saves lubricants capacity, has increased charge oil pressure.

The utility model is achieved through the following technical solutions:

A kind of engine rocker gap oil supply structure, include the pitman arm shaft that is arranged in rocking arm, be provided with relative axis hole on described pitman arm shaft, be provided with oilhole in rocking arm long-armed, oilhole is provided with economical jet in long-armed end, is provided with the lining fixing with rocking arm between the outer surface of described pitman arm shaft and rocking arm; The internal surface that described lining is relative with axis hole is provided with at least one groove and at least one oil through.

Described groove center line coaxial aperture center line is positioned on same radial cross section, is provided with disconnected at least one oil through of groove, and described oil through is connected with oilhole.

The beneficial effect that the utility model is compared with prior art is:

The every revolution of rocking arm once, two axis holes communicate with oil through respectively once to the oilhole fuel feeding, and the time compole that the revolution of rocking arm causes rocker shaft hole to communicate with oilhole is short, has saved so a large amount of lubricant oil, increased oil pressure.

Description of drawings

Fig. 1 is the utility model rocker structure schematic diagram;

Fig. 2 is the section A schematic diagram of the utility model Fig. 1;

Schematic diagram when Fig. 3 is the unlatching of the utility model oil circuit;

Fig. 4 is the utility model oil circuit schematic diagram when closing;

Fig. 5 is the utility model bush structure schematic diagram;

Fig. 6 is that the utility model lining launches schematic diagram.

Embodiment

Describe by the following examples the technical solution of the utility model in detail, should be understood that, it is that can not to be interpreted as explanation of the present utility model be to restriction of the present utility model that following embodiment only can be interpreted as.

In the technical solution of the utility model, rocking arm and pitman arm shaft be prior art not all, and oilhole is also prior art, does not need to carry out independent processing or design.

Fig. 1 is the utility model rocker structure schematic diagram; Pitman arm shaft 1 penetrates in rocking arm 2, and rocking arm 2 use supports 3 are fixed with engine cylinder cover, and pitman arm shaft 1 is hollow structure, and lubricant oil is filled with the hollow structure of pitman arm shaft.

Fig. 2 is the section A schematic diagram of the utility model Fig. 1; Relative position at pitman arm shaft 1 is provided with axis hole 6, lubricant oil is by the end fuel feeding of axis hole 6 to rocking arm 2; rocking arm 2 comprises long arm end and galianconism end centered by pitman arm shaft 1; wherein; long arm end is connected with the pressure ball seat and is used for the action valve; be provided with oilhole 7 in long arm end, oilhole 7 is provided with economical jet 5 in the long arm end opening, and another of oilhole 7 is opened on the part that rocking arm is used for installing pitman arm shaft.

Fig. 5 and Fig. 6 are that the utility model bush structure schematic diagram and the utility model lining launch schematic diagram.be provided with lining 4 between pitman arm shaft 1 and rocking

arm

2, 4 one-tenth of linings are cylindric, namely be provided with groove 8 in the face of the face of axis hole in sleeve inner surface, described groove 8 is set to along lining radial cross section direction but is not communicated with, described groove 8 is communicated with axis hole 6 and is used for storing lubricant oil with lubricating bushings and pitman arm shaft, be provided with at least one oil through 9 on lining, this oil through is not connected with groove over against the oilhole direction, when rocking arm forward to axis hole over against the time provide lubricant oil to oilhole, when oil through turns over when not connecting with axis hole, do not provide lubricant oil in oilhole, concrete opening and closing oil circuit is seen Fig. 3 and shown in Figure 4.

Claims

1. engine rocker gap oil supply structure, include the rocker arm bush that is arranged in rocking arm, be provided with relative axis hole on described pitman arm shaft, be provided with oilhole in rocking arm long-armed, oilhole is provided with economical jet in long-armed end, it is characterized in that: be provided with the lining fixing with rocking arm between the outer surface of described pitman arm shaft and rocking arm; The internal surface that described lining is relative with axis hole is provided with at least one groove and at least one oil through.

2. a kind of engine rocker according to claim 1 gap oil supply structure, it is characterized in that: described groove center line coaxial aperture center line is positioned on same radial cross section, be provided with disconnected at least one oil through of groove, described oil through is connected with oilhole.