CN204739153U - Vapour -pressure type buffering shock absorbing means of balanced axle of motorcycle engine - Google Patents

Abstract

The utility model discloses a vapour -pressure type buffering shock absorbing means of balanced axle of motorcycle engine, including balanced axle subassembly, balanced axle driven gear and balanced axle driven gear inner circle, adopt clearance fit between balanced axle driven gear and the balanced axle driven gear inner circle, evenly be equipped with a plurality of outer recesses on balanced axle driven gear's the interior circumference wall, evenly be equipped with a plurality ofly and inner groovy outer recess one -to -one on the external circumferential wall of balanced axle driven gear inner circle, the edge of outer recess is equipped with the external seal mouth, the edge of inner groovy is equipped with the inside seal mouth that corresponds with the external seal mouth, the synthetic seal port that is of external seal mouth and inside seal mouth, install the sealing rubber circle in the seal port, the synthetic air receiver that is of outer recess and inner groovy, the air receiver intussuseption is filled with compressed air. The utility model discloses a set up vapour -pressure type buffer structure, make to form springiness contaction between balanced axle driven gear and balanced axle driven gear inner circle, effectively reduced impact force between the two, also reduced the noise that from this produces simultaneously.

Description

The air pressure type buffering shock-absorbing means of motorcycle engine balance shaft

Technical field

The utility model relates to a kind of auxiliary device of motorcycle engine balance shaft, particularly relates to a kind of air pressure type buffering shock-absorbing means of motorcycle engine balance shaft.

Background technique

At present, part motorcycle adopts the motor with balance shaft mechanism.The motor of this motorcycle, adopts balance shaft mechanism, the reciprocal inertia force that the effective equalizing piston of energy produces because of to-and-fro motion, thus reduces engine luggine, reduces the noise of motor, extends the working life of motor, raising car load travelling comfort.But balance shaft mechanism itself is by gears meshing work, therefore in the process of trunnion shaft operation work, itself also can produce the impact force of gears meshing, certain engagement can be produced simultaneously and run noise, this have impact on the stability of motor to a certain extent, so motorcycle can be made operationally to produce extra vibration, reduce the travelling comfort that user rides.

At present, there is scheme disclosed in some to solve targetedly the problems referred to above, such as, take turns between inner ring at balance shaft driven gear wheel and balance shaft driven gear and elastic member is set, to reduce torsional impact between the two, reduce noise, strengthen car load travelling comfort.But in disclosed scheme, using spring or rubber column as elastic member, this mechanical part inherently can produce certain vibration and noise because of deformation first, and second these mechanical parts can have the trend of damage along with the increase of access times, so its life-span is not very long.

Model utility content

The purpose of this utility model is just to provide to solve the problem a kind of air pressure type buffering shock-absorbing means of effective, motorcycle engine balance shaft that the life-span is long.

The utility model is achieved through the following technical solutions above-mentioned purpose:

A kind of air pressure type buffering shock-absorbing means of motorcycle engine balance shaft, comprise balance shaft module, balance shaft driven gear wheel and trunnion shaft driven gear inner ring, Spielpassung is adopted between described balance shaft driven gear wheel and trunnion shaft driven gear inner ring, the inner peripheral wall of described balance shaft driven gear wheel is evenly provided with multiple outer groove, the outer circle wall of described balance shaft driven gear wheel inner ring is evenly provided with multiple and described outer groove inner groovy one to one, the edge of described outer groove is provided with external sealed mouth, the edge of described inner groovy be provided with corresponding with described external sealed mouth in sealed mouth, described external sealed mouth and described interior sealed mouth synthesize sealed mouth, in described sealed mouth, sealing rubber ring is installed, described outer groove and described inner groovy synthesize gas storage chamber, pressurized air is filled with in described gas storage chamber.

Above-mentioned balance shaft module is traditional general components, and in open source information, also the combination of useful trunnion shaft is as title, and concrete structure does not repeat them here; Pressurized air in gas storage chamber becomes air pressure type buffering shock-absorbing means, and the sealing that sealing rubber ring is gas storage chamber provides condition; Compressed-air actuated injecting structure adopts usual manner can implement easily, so be not described specifically in this article.

Particularly, described outer groove and described inner groovy are respectively 8, on the inner peripheral wall being distributed in described balance shaft driven gear wheel respectively equably and on the outer circle wall of described balance shaft driven gear wheel inner ring.

The beneficial effects of the utility model are:

The utility model arranges air pressure type buffering structure by taking turns between inner ring at balance shaft driven gear wheel and balance shaft driven gear, balance shaft driven gear wheel and balance shaft driven gear are taken turns between inner ring and forms Elastic Contact, torsional impact load is between the two absorbed by the pressurized air in gas storage chamber and weakens, effectively reduce impact force between the two, also reduce consequent noise simultaneously; Owing to adopting air pressure type buffering shock-absorbing means, so can use for a long time and be difficult to damaged, its life-span be longer.

Accompanying drawing explanation

Fig. 1 is the structural representation of the air pressure type buffering shock-absorbing means of motorcycle engine balance shaft described in the utility model;

Fig. 2 is the structural representation between balance shaft driven gear described in the utility model wheel and balance shaft driven gear are taken turns;

Fig. 3 is the structural representation after removing sealing rubber ring between balance shaft driven gear described in the utility model wheel and balance shaft driven gear are taken turns.

Embodiment

Below in conjunction with accompanying drawing, the utility model is described in further detail:

As Fig. 1, shown in Fig. 2 and Fig. 3, the air pressure type buffering shock-absorbing means of motorcycle engine balance shaft described in the utility model, comprise balance shaft module 1, balance shaft driven gear wheel 3 and trunnion shaft driven gear inner ring 4, Spielpassung is adopted between balance shaft driven gear wheel 3 and trunnion shaft driven gear inner ring 4, the inner peripheral wall of balance shaft driven gear wheel 3 is evenly provided with 8 outer grooves, the outer circle wall of balance shaft driven gear wheel inner ring 4 is evenly provided with 8 and outer groove inner groovy one to one, the edge of outer groove is provided with external sealed mouth, the edge of inner groovy be provided with corresponding with external sealed mouth in sealed mouth, external sealed mouth and interior sealed mouth synthesize sealed mouth 7, sealing rubber ring 6 is installed in sealed mouth 7, outer groove and inner groovy synthesize gas storage chamber 5, pressurized air is filled with in gas storage chamber 5.Also show the trunnion shaft wave washer 2 that assemble between balance shaft driven gear wheel 3 and balance shaft module 1 in Fig. 1, because of be disclosed in structure, so stress.

According to actual needs, the compressed-air actuated air pressure in gas storage chamber 5 can change, and the change of air pressure is equivalent to the flexible change of air pressure type buffering shock-absorbing means.During work, balance shaft driven gear wheel 3 and balance shaft driven gear are taken turns between inner ring 4 because the pressurized air in gas storage chamber 5 forms Elastic Contact, torsional impact load is between the two absorbed by the pressurized air in gas storage chamber 5 and weakens, effectively reduce impact force between the two, also reduce consequent noise, and long-time use is also difficult to damaged simultaneously.

Above-described embodiment is preferred embodiment of the present utility model; it is not the restriction to technical solutions of the utility model; as long as without the technological scheme that creative work can realize on the basis of above-described embodiment, all should be considered as falling within the scope of the rights protection of the utility model patent.

Claims (2)

1. the air pressure type buffering shock-absorbing means of a motorcycle engine balance shaft, comprise balance shaft module, balance shaft driven gear wheel and trunnion shaft driven gear inner ring, Spielpassung is adopted between described balance shaft driven gear wheel and trunnion shaft driven gear inner ring, it is characterized in that: the inner peripheral wall of described balance shaft driven gear wheel is evenly provided with multiple outer groove, the outer circle wall of described balance shaft driven gear wheel inner ring is evenly provided with multiple and described outer groove inner groovy one to one, the edge of described outer groove is provided with external sealed mouth, the edge of described inner groovy be provided with corresponding with described external sealed mouth in sealed mouth, described external sealed mouth and described interior sealed mouth synthesize sealed mouth, in described sealed mouth, sealing rubber ring is installed, described outer groove and described inner groovy synthesize gas storage chamber, pressurized air is filled with in described gas storage chamber.

2. the air pressure type buffering shock-absorbing means of motorcycle engine balance shaft according to claim 1, it is characterized in that: described outer groove and described inner groovy are respectively 8, on the inner peripheral wall being distributed in described balance shaft driven gear wheel respectively equably and on the outer circle wall of described balance shaft driven gear wheel inner ring.