A gasoline saw is generally composed of an engine, a transmission mechanism, a sawing mechanism, and the like. During operation, the power drives the saw chain through a conventional mechanism to allow the saw chain to continuously move along the guide to saw the wood.
Engine: Generally a single-cylinder air-cooled two-stroke high-speed gasoline engine. In order to adapt to the different operations of the chain saw in different sawing directions, a pump-type carburetor with a pump is used to drive the diaphragm pump oil by the pressure pulsation in the crankcase, so that the engine can supply oil at any position. . In addition, new structures such as transistor contactless magneto ignition systems and check valve intake systems are increasingly used to improve engine performance.
Transmission mechanism: including centrifugal friction clutch and reducer. The reducer generally adopts a conical wheel reducer, which is convenient for horizontal and vertical adjustment of the sawing mechanism relative to the body to meet the needs of different sawing directions during logging and material production.
Sawmill: It is the working part of the chain saw, including the drive sprocket, the saw chain, the guide, the chain tensioner and the wood teeth.
For gasoline saws, the future development trend will be to adopt new materials, new processes and new structures to further reduce the weight of chain saws; reduce noise and vibration, reduce air pollution to improve operating conditions; add safety protection devices to improve use Reliability and safety, while continuing to improve the new chain saw and remote power driven by the rotor engine.
