ABSTRACT
The main purposes for this design are as follows: to know how to design a digging machine ;to master the way to design the crossing axis digging part of the digging machine.
The thing of this design is a digging machine which is used to cut coal and movd by chain,this design mainly about the function of all of the parts of the machine and the structure of the digging part. In the design of of the whole machine ,this article is main about the taking system ,the carring system ,the walking system ,the liquid system and the the machine structure and so on .
This article mainly talk about the structure of the digging part ,this digging part is a crossing axis digging part.In this article ,the structure of the sustain shelf and the the speed reducing machinery are carefully designed.the characteristic of the digging part are as follows:
(1) Three couple of gears are used in the speed reducing machinery to add the lengh of the digging part and because this way of design ,the intervention of the gear and the digging head can be avoid.
(2) The cone gears are used in the first couple of the gears,it fulfil the need of the aspect changing of the digging part.
Furthermore the article also talks about the digging machine’s earmark and the history of the digging machine ,and this article also talks about the dismantling and fixing of the machine,the checking and repairing of the machine.
Keywords:
digging machine ; digging part ; speed reducing machinery.