Study On Multi-function Vibrating And Snow Removing Shovel

The ice-snow on the highway and city road has an important effect on the transportationand the daily life during the northern winter. The winter time is long in the north of china,the snow on the road is thick and the temperature is low. If the snow could not be removedtimely, the snow will become to compaction mixture of ice and snow with the pedestriansand vehicles rolling. Analogously, there is snow disaster in the south of china, and thedisaster will bring some harm to people′s life and property safety. Whether removing thesnow and ice on the road timely, completely and efficiently after the snowfall has become anurgent subject of science and technology to be solved. At present, the existing snow blowerdon′t have vibrating mechanism which can break ice and remove snow and obstacle crossingmechanism automatically. Because of the single function, the snow blower of domestic isdifficult to adapt to the requirements of the morden snow removal technology. In this context,it is necessary to study the snowplough which has a variety of functions. Exploring newtechnical solutions is an important significance to solve the problem of snow removing.Relying on the project “Researsh of the key technologies of multi-functionalicebreaking and snow removing shovel” of Baishan Xingtai mining machinery factory, thispaper studies the structure and function of the icebreaking and snow removing shoveldevice——multi-function vibration snow cleaning shovel.(1) The board structure of snow shovel is analyzed. Meanwhile the moving snow grainson the spade board are mechanical analyzed, and relative movement orbits of the snowgrains are gotten. On that basis, the relationship between the distance Sy of the snowthrowing and the side rake angle θ of snow shovel is researched, and the side rake angle ofsnow shovel is determined when the distance of the snow throwing was the largest. Structureform of snow shovel vibration mechanism is analyzed.(2) The physical and mechanical properties of mixture of snow and ice on the road areresearched, including compressive strength and shear strength of snow and ice. And then, iceand snow removal mechanism of vibration shovel tool is analyzed, which decide whether the vibration mechanism can break the ice and remove the snow.(3) The working principle of obstacle crossing mechanisms of domestic snow-removalmachine is compared with overseas obstacle crossing mechanisms. On that base, the obstaclecrossing mechanism of multi-functional vibration snow shovel is designed, and the obstaclecrossing process of obstacle crossing mechanism is analyzed. Through the analysis, therelation curve between obstacle crossing height and longitudinal displacement is gotten, andthe maximum height of snow shovel over obstacles is determined, that is140mm.(4) Different hydraulic systems of domestic shovel loaders are compared and analyzed，including working hydraulic system and hydraulic steering system. The optimal hydraulicsystem of the shovel is found through the force-fetching analysis of different parts ofhydraulic systems.(5) The snow resistance on the shovel in working process and the exciting force thatis produced by the vibration mechanisms are gotten through the theoretical calculation. Thestatic and dynamic characteristics are analyzed by taking the calculation results as boundaryconditions and using the computer software. And then, the stress cloud charts of static loadand dynamic load of the shovel are worked out. So the stress weak point of the shovel isobtained and a theoretical basis for the further research is provided. The former fifteen stepmodes of snow shovel are analyzed, these can decide whether the resonance phenomenon ofthe shovel exists or not.(6) Finally, the ice-breaking test of vibrospade and the obstacle experiment of shoveledge are executed by using the model motor. With the ice-breaking test, we analyzed therelationship between vehicle speed, density of the snow and the cleaning efficiency of theshovel. With the obstacle experiment of the shovel edge, we prove that the maximum heightof the barrier which the shovel can cross is240mm. Through the analysis of the experimentaldate, we prove that the design scheme is correct, the structure is reasonable and thecapability of the shovel is stable.