CN205445704U

CN205445704U - Camshaft

Info

Publication number: CN205445704U
Application number: CN201521114169.6U
Authority: CN
Inventors: 吴万刚
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-12-29
Filing date: 2015-12-29
Publication date: 2016-08-10
Anticipated expiration: 2025-12-29

Abstract

The utility model provides a camshaft, camshaft, including axle embryo spare and set up admit air convex closure and the exhaust convex closure on axle embryo spare, be provided with the through -hole at this embryo spare center, the convex closure, exhaust convex closure of admitting air is greater than the hole that is close to the exhaust convex closure with an axle embryo spare integrated into one piece, the hole diameter that is close to the convex closure that admits air. The utility model discloses simple structure, convenient to use, hollow embryo spare, save material reduces processing step simultaneously, and integrated into one piece's setting has also reduced technology in the proof strength, save the cost of labor, the suitable popularization and application.

Description

Camshaft

Technical field

This utility model relates to a kind of camshaft, belongs to mechanical fitting field.

Background technology

Camshaft is parts in piston engine, and its effect is unlatching and the closed action controlling valve.Its rotating speed is generally the highest, needs to bear the biggest moment of torsion, and therefore the highest to camshaft requirement in terms of intensity and support in design, its material is usually Special Casting Iron, the most also has and uses forging.Owing to valve motion rule is related to power and the service performance of an electromotor, therefore camshaft manufacture in the manufacture process of electromotor in occupation of highly important status.Camshaft mainly includes blank body, after forming blank part body and convex closure, needs to polish entirety, needs to hollow out blank body simultaneously, and not only operating procedure is numerous and diverse, but also wastes material, can not meet modern industry Production requirement.

Summary of the invention

For above-mentioned weak point of the prior art, this utility model provides a kind of easy to process, saves the camshaft of material.

To achieve these goals, this utility model offer techniques below scheme: a kind of camshaft, the air inlet convex closure including axle blank and being arranged in axle blank and aerofluxus convex closure, it is provided centrally with through hole in this axle blank, described air inlet convex closure, aerofluxus convex closure are one-body molded with axle blank, and the hole diameter near air inlet convex closure is more than the hole near aerofluxus convex closure.

By above technical scheme it can be seen that this utility model simple in construction, easy to use, the blank of hollow, save material, reduce procedure of processing, integrated setting simultaneously, while proof strength, decrease technique, save labour turnover, suitable popularization and application.

Accompanying drawing explanation

In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is only embodiments more of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is structural front view of the present utility model；

Fig. 2 is top view of the present utility model.

Detailed description of the invention

This utility model is further described below in conjunction with specific embodiment and accompanying drawing.

A kind of camshaft as shown in Figures 1 and 2, including axle embryo, 1 and the air inlet convex closure 2 that is arranged in axle blank 1 and aerofluxus convex closure 3, it is provided centrally with through hole in this axle blank 1, saving raw material, avoid post-production borehole simultaneously, described air inlet convex closure 2, aerofluxus convex closure 3 are one-body molded with axle blank 1, intensity is big, only need to polish two ends, the hole diameter near air inlet convex closure 2 is more than the hole near aerofluxus convex closure 3, it is not necessary to other technological processes, time saving and energy saving, suitably promote.

The technical scheme provided this utility model embodiment above is described in detail, principle and the embodiment of this utility model embodiment are set forth by specific case used herein, and the explanation of above example is only applicable to the principle helping to understand this utility model embodiment；Simultaneously for one of ordinary skill in the art, according to this utility model embodiment, all will change in detailed description of the invention and range of application, in sum, this specification content should not be construed as restriction of the present utility model.

Claims

1. a camshaft, the air inlet convex closure (2) including axle blank (1) and being arranged in axle blank (1) and aerofluxus convex closure (3), it is characterized in that: be provided centrally with through hole in this axle blank (1), described air inlet convex closure (2), aerofluxus convex closure (3) are one-body molded with axle blank (1), near the hole diameter of air inlet convex closure (2) more than the hole near aerofluxus convex closure (3).