Starting device of internal combustion engine

Abstract

The invention relates to a starting device of an internal combustion engine. The starting device comprises an integrated shell, an input shaft, an output center shaft, a set of gears and a clutch mechanism with starting jaws. The clutch mechanism comprises a jaw tray, the starting jaws, a one-way ratchet wheel and a damping device. The working principle of the starting device is that the input shaft is driven by a crank and linked with a gear train and accelerated to the output center shaft for rotation, the starting jaws stretch out by impacting the jaw tray and are connected with the internal combustion engine for rotating start, after the internal combustion engine is started normally, the jaw tray on a flywheel quickly knocks the starting jaws, and the starting jaws retract back into the jaw tray through a torsion spring. The superiority of the starting device is that when the internal combustion engine rotates in the reverse direction, the jaw tray on the flywheel pushes the starting jaws in the reverse direction, the starting jaws extrude the jaw tray with the one-way ratchet wheel in the reverse direction, the jaw tray brakes because of resistance of pawls, the impact forcesuffered by the starting device is too high due to braking, in order to reduce the impact force, the damping device is arranged at the bottom of a ratchet fixing plate, the starting jaws retract intothe jaw tray and separate from the internal combustion engine, and thus the crank of the starting device is effectively prevented from rotating in the reverse direction and injuring people.

Description

technical field [0001] The invention relates to a starting device for an internal combustion engine, in particular to a manual starting device for an air-cooled internal combustion engine. Background technique [0002] Existing air-cooled internal-combustion engine start-up methods roughly include electric start, hand pull start, hand crank, and a starter that releases after a hand spring has stored energy. There are certain defects in various starting methods. The electric starter is convenient to use, but the maintenance and use costs are high, and the battery will lose power or even be damaged if it is not used for a long time. At present, a large number of manual starters are used. The advantage is that the price is cheap, but most users in rural areas are Older middle-aged and elderly people or women, many of whom cannot master the use skills or have insufficient strength, often cannot start the internal combustion engine; the spring energy storage method reduces the la...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the major safety defects of the existing manual starter and the unreasonable problem of the operating speed ratio, the present invention designs a safety device that can quickly separate the starter and the internal combustion engine when the internal combustion engine reverses, and also improves the input and output The speed ratio, which effectively improves the safety and effectively improves the starting efficiency of the internal combustion engine

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