Research On Single Lift Cylinder System Of Working Equipment On TY160 Bulldozer

AS an representative construction machinery, bulldozer are used widely in infrastructure construction、water conservancy project、mining and the building up of defense.The working environment of dozer is very wicked,it will do bad to the parts of the machine especially for the front working device.The front working device is composed of many parts, the intension、the size and the position of every part can do great contribution to the capability of the machine. The front working device is easy to be hurt during hard work. At present the domestic research and development level of the bulldozer have improved significantly,but still not get rid of the traditional model.The traditional model of product development include conceptual design-, project approachment、drawing design and trail production. A lot of problems maybe appear during trail production,usually the engineers try to change the new design with repeated test. so, it’s always use too long time to fixing the model.The front working device of traditional bulldozer usually owns two cylinders which used to control the blade up and down. The two cylinders are fix on the both sides of the hood,and the fixed points of the two cylinders are behind the hood, the two points are connected with one beam. This kind of working device has such disadvantage as follows:1、when the blade up and down,the obliquity of the cylinders change greatly that will lead the pressure of the cylinder are also variable.So,it will do bad for the power budget of the engine.2、When the pressure of the two cylinders are not the same, the torsional pressure on the main frame is too heavy to hurt the structure of the main frame, which have significant effects on the working of the transmission control system and the life of the bulldozer.3.The beam between the two fix points of cylinder seriously reduced the space to install the engine and the cooling system.To solve the disadvantage of the front working device of traditional bulldozer. On the basis of theoretical calculation analysis,this thesis focus on the simulation analysis and dynamics analysis. The kinematic and bearing force analysis of the new type single lift cylinder system can be solved with this method, which can verify the possibility to extend the single lift cylinder system on the traditional bulldozer. The topic of research provide important value to expend single lift cylinder system on traditional bulldozer made in china.