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Chainsaws purposes
2014/4/25??????點(diǎn)擊：
Oil to gasoline -powered saws , chain saws cutting wood components handheld cutting machines . Widely used in forestry production logging, pruning , building materials and other operations.
Overview 1914 Germany made the world's first chain saw , power is about 3 kilowatts , weight 80 kg , carrying operated by two people. The early 1950s , with the widespread use of small internal combustion engine , the Soviet Union , the United States , Federal Republic of Germany , Sweden, Japan and other countries to start mass production of single chain saw operator , to 60 years, due to the development of light alloy die-casting technology, manufacturing Chainsaws With greater development. China introduced in 1956 , began production in 1957 .
Classified according to the type of saws can be divided into high and low to the chain saw chainsaw categories ( see figure ) . Chainsaws high weight on the arms distribution uniform, easy to carry, when the job without big bend , equipment maintenance easy ; dwarf the compact chainsaw structure, light weight , small vibration when operating , suitable for mountainous forest areas logging, pruning , building materials and other integrated operations. By engine power can be divided into large , medium, small and micro : 4.4 kW for large ; 3 to 4 kW for medium ; 1 to 2 kW for small ; for micro 1.5 kilowatts or less. The basic structure generally consists of an engine , transmission, body and other components sawmill . When operating , the power transmission mechanism driven by the chain saw , the saw chain along the guide plate for continuous motion to sawing wood. ① engines. Generally single-cylinder air-cooled two-stroke gasoline engine speed . To meet the different positions chainsaw cutting jobs in different directions , using a membrane pump carburetor with a fuel pump , using the crankcase pressure pulsation -driven diaphragm pump oil, the engine in any position on the normal supply . Furthermore, the increasingly widespread use of the new transistor structure without contact magneto ignition system and the check valve intake system , so as to improve the performance of the engine. ② transmission mechanism . Including centrifugal friction clutch and gear . Generally use conical reducer gear reducer ( only used the chain saw high ) , easy to make sawmill mechanism with respect to the body horizontally and vertically adjustable to suit the needs of different directions when sawing timber and bucking . ③ sawmill agency. Chainsaws are working parts , including the drive sprocket , chain saws , guides the saw chain tensioning device and insert wooden teeth and so on. Drive sprocket driven by the engine power rotation , and then drive the saw chain guide plate movement along the cutting operation. Chain saws and angle straight tooth type ( universal type ), with straight tooth saw chain suitable for transverse timber ; Angle -type chain saws can be transverse or oblique sawn timber , manufacturing simple, rasping are more simple straight toothed chain saws , chain saws are used widely in style . Chainsaws wooden teeth are inserted in the sawmill when the anchor , the reaction part of the weight of it and saw chain saws when cutting wood , applied to the wood itself , thereby reducing the operator's labor intensity. For ease of operation , including the saw chain saw also features , including the manipulation of the device .
Development Trend of using new materials, new processes, new structures to further reduce the weight Chainsaws ; reduce noise and vibration , reduce air pollution and to improve the operating conditions ; additional safety devices , in order to improve the reliability and safety of use ; while continue to improve the new rotary engine -powered chain saw chainsaw and remote control .
Overview 1914 Germany made the world's first chain saw , power is about 3 kilowatts , weight 80 kg , carrying operated by two people. The early 1950s , with the widespread use of small internal combustion engine , the Soviet Union , the United States , Federal Republic of Germany , Sweden, Japan and other countries to start mass production of single chain saw operator , to 60 years, due to the development of light alloy die-casting technology, manufacturing Chainsaws With greater development. China introduced in 1956 , began production in 1957 .
Classified according to the type of saws can be divided into high and low to the chain saw chainsaw categories ( see figure ) . Chainsaws high weight on the arms distribution uniform, easy to carry, when the job without big bend , equipment maintenance easy ; dwarf the compact chainsaw structure, light weight , small vibration when operating , suitable for mountainous forest areas logging, pruning , building materials and other integrated operations. By engine power can be divided into large , medium, small and micro : 4.4 kW for large ; 3 to 4 kW for medium ; 1 to 2 kW for small ; for micro 1.5 kilowatts or less. The basic structure generally consists of an engine , transmission, body and other components sawmill . When operating , the power transmission mechanism driven by the chain saw , the saw chain along the guide plate for continuous motion to sawing wood. ① engines. Generally single-cylinder air-cooled two-stroke gasoline engine speed . To meet the different positions chainsaw cutting jobs in different directions , using a membrane pump carburetor with a fuel pump , using the crankcase pressure pulsation -driven diaphragm pump oil, the engine in any position on the normal supply . Furthermore, the increasingly widespread use of the new transistor structure without contact magneto ignition system and the check valve intake system , so as to improve the performance of the engine. ② transmission mechanism . Including centrifugal friction clutch and gear . Generally use conical reducer gear reducer ( only used the chain saw high ) , easy to make sawmill mechanism with respect to the body horizontally and vertically adjustable to suit the needs of different directions when sawing timber and bucking . ③ sawmill agency. Chainsaws are working parts , including the drive sprocket , chain saws , guides the saw chain tensioning device and insert wooden teeth and so on. Drive sprocket driven by the engine power rotation , and then drive the saw chain guide plate movement along the cutting operation. Chain saws and angle straight tooth type ( universal type ), with straight tooth saw chain suitable for transverse timber ; Angle -type chain saws can be transverse or oblique sawn timber , manufacturing simple, rasping are more simple straight toothed chain saws , chain saws are used widely in style . Chainsaws wooden teeth are inserted in the sawmill when the anchor , the reaction part of the weight of it and saw chain saws when cutting wood , applied to the wood itself , thereby reducing the operator's labor intensity. For ease of operation , including the saw chain saw also features , including the manipulation of the device .
Development Trend of using new materials, new processes, new structures to further reduce the weight Chainsaws ; reduce noise and vibration , reduce air pollution and to improve the operating conditions ; additional safety devices , in order to improve the reliability and safety of use ; while continue to improve the new rotary engine -powered chain saw chainsaw and remote control .
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