履带拖拉机变速器改进设计 Ⅳ（含全套CAD图纸）.pdf

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1
TRACKED TRACTOR TRANSMISSION IMPROVED
DESIGN ę
ABSTRACT
With the continuous progress of agricultural development, agricultural
production mechanization, the scale of the means of production and agricultural
land and building materials and other goods traffic increasing, more and more
farmers need the help of tractors, therefore, farm tractors development prospects
are broad, there will be greater development.
Tractors to meet the power and economic indicators, and transmission of
the file, the transmission ratio of the scope and the transmission of the file.
Tractor work of the road conditions plex than the smaller power, the
transmission of the transmission ratio greater. Reducer and the main transmission
and engine parameters to optimize the allocation and availability of power and
good economy.
In order to make e true that the transmission is adapted to the
engine and its structure is sound, I pay close attention to the development of the
clutch transmission shaft and collectivity arranging designers in my design, and
have a repeating discussion with them .
For shifting gear steadily , fourth and third gear have synchrotron ,and in
consideration of the simplicity and reliability .According to the traditional mean
of design ,part experience and theory and analogism ,the blue e into
being .by virtue of tradition transmission I verify the size of element which have
been chosen, according to mechanical theory, in consideration of the
qualif