CN2148828Y

CN2148828Y - adjustable oil pump rocker arm

Info

Publication number: CN2148828Y
Application number: CN 92237390
Authority: CN
Inventors: 孙富强
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-10-15
Filing date: 1992-10-15
Publication date: 1993-12-08
Anticipated expiration: 2002-10-15

Abstract

The utility model discloses an improvement to the automobile oil pump rocking arm. The oil pump is composed of an outer rocker arm and an inner rocker arm which are connected into a whole through bolts, when one end of the rocker arm is abraded, the bolts are loosened, the mutual positions of the outer rocker arm and the cam shaft are adjusted, and the normal work of the oil pump is guaranteed. The utility model discloses simple structure uses easy maintenance, and after the rocking arm wearing and tearing, the adjustment or change outer rocking arm can, save the expense.

Description

Adjustable rocker arm of oil pump

The utility model is the improvement to the automobile fuel pump rocking arm.

At present, the petrol pump that automobile is used is to be rotated by eccentric cam, pushes rocking arm, drives the oil pump rod motion by rocking arm, makes oil pump work.Because oil pump is in the continuous operation, contact end wearing and tearing with cam very fast, thereby the matching gap of rocking arm and cam is increased, so that oil pump pump oil mass is reduced, influences engine performance.We generally adopt replacing Rocker arm assembly or oil pump assy to solve the few problem of pump oil, and the cost height keeps in repair inconvenient like this.

For solving above-mentioned deficiency, the purpose of this utility model is to provide a kind of adjustable oil pump rocking arm, after the wearing and tearing of rocking arm one end, adjust the mutual alignment of rocking arm and cam, guarantee the oil pump proper functioning, and easy to maintenance, cost is low, prolongs the working life of rocking arm and oil pump.

For achieving the above object, technical measures of the present utility model are as follows:

The adjustable oil pump rocking arm is installed on the rocking arm, and an end is connected with oil pump rod, the other end contacts with eccentric cam, it is characterized in that rocking arm is made up of inner rocker arm and outer rocker arm two-part, connects as one with bolt, interior outer rocker arm junction plane place has annular knurl, and coincide mutually.

Another program is, is provided with to adjust the hole on outer rocker arm, and it is corresponding with the set bolt hole of inner rocker arm to adjust the hole.

For further specifying feature of the present utility model, described below in conjunction with accompanying drawing.

Fig. 1 has the inside and outside rocker structure schematic representation of annular knurl surface of contact;

(a) inner rocker arm structural representation;

(b) outer rocker arm structural representation;

(c) adjustable oil pump rocking arm assembling schematic representation;

Fig. 2 has the inside and outside rocker structure schematic representation of adjusting the hole;

Among the figure: 1 inner rocker arm, 2 outer rocker arms.

The utility model using method is as follows:

After the wearing and tearing of outer rocker arm and eccentric cam contacting point, unclamp clamping bolt, with outer rocker arm with the bolt be fulcrum shaft to turning an angle, make the gap between outer rocker arm and the camshaft keep normal, thereby reach the oil pump proper functioning.

Fig. 2 is another embodiment: outer rocker arm is provided with adjusts the hole, when the rocking arm end weares and teares, unclamps bolt, selects to adjust the hole, and after gap between rocking arm and the camshaft was normal, tighting a bolt got final product.

Advantage of the present utility model:

1, simple in structure, manufacturing, use, easy to maintenance.

2, prolong the service life of rocking arm, cost is low.

Claims

1, a kind of adjustable oil pump rocking arm is installed on the pitman arm shaft, and an end is connected with oil pump rod, the other end contacts with eccentric cam, it is characterized in that rocking arm is made up of inner rocker arm and outer rocker arm two-part, connects as one with bolt, interior outer rocker arm junction plane place has annular knurl, and coincide mutually.

2, adjustable oil pump rocking arm according to claim 1, it is corresponding with the set bolt hole of inner rocker arm to it is characterized in that outer rocker arm is provided with the adjustment hole.