Improved design of YG-94 (051A) chain saw gearbox

Improved design of YG-94 (051A) chain saw gearbox


2=SimSun's summary introduces you. ;44;05 The structural performance of the main parts of the chain saw reducer and the improved use of the components of the reducer and the foot saw drive system. It is the mechanism that changes the high engine speed to the required low speed. Due to the limitation of the engine power and the strength of the sawing mechanism, the cutting speed of the saw chain cannot be overkill. If this is the case, the setting of the reducer reducer must be increased. The output torque, which changes the cutting performance of the sawing mechanism, is behind the same type of chain saw. The biggest problem reported by the user is the low chain speed. Due to the high labor intensity of harvested wood, the sawing efficiency is low and it is easy to fatigue. Therefore, it is imperative to improve the 051 person chain saw. In order to improve the competition of the chain saw products in the market, it was decided that the development of high-efficiency sawing efficiency and reliability of the chain saw was improved to 0448051 on the basis of the original 094 to replace the existing one; The sawing system is improved, other parts remain unchanged. The 051-person power machine and the fuel tank pot holder are basically unchanged. The improved chain saw has greater versatility than the original machine, and can reduce the development cost of the product. , 94 chain saw with, 943 chain saw main technical indicators in addition to engine parameters compared with 2 gearboxes and sawing system improvements 2.1 gearbox improvements from the driven cone street wheel number 3J with 94 chain saw and 094, by sawing main technology Index comparison improvement before improvement sawing efficiency 8 sawing fuel consumption rate saw chain model gearbox transmission ratio calibration speed when the chain speed m automatic lubrication consumption manual lubricant saw output drive wheel driven 徘 v. round street number 2 The number of teeth of the driven cone is set to 17=1235 067 and changed to 1.235. Thus, when the cutting speed of the saw chain reaches 12 4ms at the rated speed, why is the speed selected, according to the manufacturing process level and mechanical reliability and durability requirements of China? , It is proved that the 051 power machine is suitable. Therefore, the speed reducer system needs to be modified due to the increase in chain speed. It is necessary to intensify the frictional heat and honing between the saw chain and the guide head sprocket, thereby shortening its common hand pressure oil pump, so that the lubricating oil flows to the saw chain and the guide plate, such lubrication is obviously uneven and discontinuous. The oil is discharged when the hand is pressed, and the pump is not pressed when the hand is not pressed. The 0948 oil pump structure is rotated at the worm-driven speed reducer at the end of the driving bevel gear to generate axial movement, so that the lubricating oil continuously flows to the saw chain continuously. And the guide board as long as the public welfare advertising public service advertising public service advertising public service advertising public service advertising public service advertising public service advertising public service advertising public service advertising public service advertising public service advertising public service advertising public service advertising public service advertising to enhance technological innovation, development of high technology, industrialization J public welfare Advertising Public Service Advertising Public Service Advertising Public Service Advertising Public Service Advertising Public Service Advertising Public Service Advertising Public Service Advertising Public Service Advertising Public Service Advertising Public Service Advertising Public Service Advertising Public Service Advertising Public Service Advertising Public Service Advertising Speed ​​Bevel Gear Rotating, Oil Pump Works, and With the Increase of Rotating Speed, Oil Volume Also increased, this oil pump is more reliable and timely than the manual oil pump, and
2.2 Improvement of sawing system 948 汕 saw according to its chain speed increase 6, mining; 59, positive 10010.26 saw chain, imported planer teeth, square tooth edge chain, very suitable for logging of different tree species Long durability is good. Due to the high sawing efficiency of sawtooth, the life of the imported silver chain is equivalent to 225 times of the life of the domestic 15-point silver chain. Although the price is slightly expensive, the economic benefits of production and use are from the production board. , 14, according to several 160 saw chain parameter line change guide length is not selected 抒 46, 1 guide plate, so that the chain is symmetrically arranged 21 215, 15 groups of 60 section drive chain, according to international standard model specifications 100, guide groove width From 1.9 to 1.75 3, the improved effect of the trial production of 100 sets, respectively, the bench test adjustment and improvement of 45 sets to Hainan forest area for production adaptability test, 100 units sent to the northeast forest area of ​​Mongolian forest area, according to, 83,948 The production test method for the chain saw forest area was carried out for the type test. Finally, the total amount of wood fell through 2,091,2, and the main parts were not damaged. Before the reliability test, the sawing efficiency was 97.3,8, and the sawing efficiency ratio was 1; 94. Island 21. After the reliability test, 259, sawing, loosening was 89.46, 28, sawing efficiency only decreased the intestine, In addition to the spark plug, the average time between failures 29, its main performance indicators have reached the design task book, and the side reached the level of 07,100,191 chain saw product quality grade, after the prototype in the North and South forest production test, its adaptability Well, the parts work reliably, the production economic benefits are obvious, 4 rely on the quality level to reach the superior grade according to the use of the unit personnel, the sawing benefit is higher than the original 051 people, it is easy to exceed 80,1!28 due to the use of imported saw chains, The labor intensity of automatic sawing is greatly reduced, the vibration is reduced, and the economic benefits of production are calculated according to the calculation. The comprehensive logging is 6279, and the burning cost of the wood is 0.046, which is 58. And to improve the chain speed with the end of the experts and the use of the unit, sawing efficiency and sawing wood are proportional to the speed of the saw chain, because the chain speed, friction power is greatly increased, it is necessary to improve the power of the chain saw engine, 94,051 people 1 Chain saw and chain speed, how to match the chain pitch, play the best sawing efficiency, still have to enter, research public service advertising

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