CN2900901Y - Timing cam top placing serial engine crank shaft - Google Patents

Abstract

An engine crankshaft of correct timing cam overhead series, compared with the prior art, the length of the left crank axle is 106mm and the diameter is phi22, after the improvement of the prior engine crankshaft of correct timing cam overhead series, the crankshaft can adapted the prior left bonnet of an engine, magneto inductor and actuating motor which is the same with the engine crankshaft of the correct timing cam lower series, the design and manufacture cost can be reduced, assemblage and maintenance are convenient, management cost can be saved.

Description

A kind of timing cam up-set type series of engines bent axle

Technical field

The utility model relates to timing cam up-set type series of engines, specifically is the bent axle of this timing cam up-set type Engine Series.

Background technique

For a long time, may be to consider aspect factors such as intensity, structure, or otherwise reason, the bent axle of existing timing cam up-set type Engine Series and the bent axle of timing cam underneath type Engine Series always be in shape different.Particularly, the former left crankshaft length is 86mm, and diameter is φ 20; The latter's left crankshaft length is 106mm, and diameter is φ 22.So the left front lid of motor, magnetogenerator and the electric starting mechanism etc. that match with them all design, process, have stored a cover separately.So, not only design accordingly, manufacture cost increases to some extent, and, no matter be to the assembling in producing, or, all brought very big inconvenience the maintenance after using, also increased administration cost certainly again.

The model utility content

At the deficiency of available engine bent axle, the purpose of this utility model is to propose a kind of engine crankshaft that can reduce corresponding design, manufacturing and administration expenses.

What realize described purpose is a kind of like this timing cam up-set type series of engines bent axle, and it has crankshaft journal, left crankshaft and right crankshaft.With the difference of existing such bent axle be, its left crankshaft length is 106mm, and diameter is φ 22.

After existing timing cam up-set type series of engines bent axle carried out above-mentioned improvement, it fully can adapted and the identical left front lid of available engine, magnetogenerator and the electric starting mechanism of timing cam underneath type series of engines bent axle.Naturally corresponding design, manufacture cost have just been reduced; Come very big convenience also for simultaneously assembling and maintenance, saved administration cost.

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

Description of drawings

Fig. 1---the erection drawing of former timing cam up-set type bent axle

Fig. 2---erection drawing of the present utility model

Embodiment

A kind of timing cam up-set type series of engines bent axle (with reference to figure 2).This bent axle has crankshaft journal, left crankshaft 10 and right crankshaft, and the length of its left crankshaft 10 is 106mm, and diameter is φ 22.From comparison diagram (Fig. 1) as can be seen, existing up-set type series of engines bent axle, because its left crankshaft 10 shapes and timing cam underneath type series of engines bent axle are inequality, the electric starting mechanism 13 of the left side lid 11 that it just must the adapted special use, the magnetogenerator 12 of special use, special use just can be assembled in the motor and use.And after having done the such improvement of the utility model, this timing cam up-set type series of engines bent axle, the shape of its left crankshaft 10 and timing cam underneath type series of engines bent axle are in full accord, so it just can be with the left side that is complementary for this timing cam underneath type series of engines bent axle lid 21, magnetogenerator 22 and electric starting mechanism 23.

Claims (1)

1. timing cam up-set type series of engines bent axle, it has crankshaft journal, left crankshaft and right crankshaft, it is characterized in that, and the left crankshaft length of this bent axle is 106mm, and diameter is φ 22.