The Research Of A New Portable Shallow Hole Sampling Drill Rig

New portable shallow hole sampling drill rigs are used mostly to prospect the shallow mineral resources and oil & gas resources, to obtain sample for environmental research, to obtain sample for geotechnical engineering prospecting and drilling construction in sap and laneway.With the great developments of national economy, the task of drilling shallow hole and sampling soils becomes more and more. But the domestic shallow hole sampling drill rigs are short of patterns and the patterns are monotonous. The current shallow hole drill rigs can't meet the desire of shallow hole drilling and sampling in difficultily entered area and dry area. Thus, National Lab of Scientific Drilling of CUGB(China University of Geosciences(Beijing)) engages in research of shallow hole sampling drill rigs.Through referring to the features of structural patterns of portable drill rig in home and aboard, a vibrant and impact,lightweight, easy to knocked-down, conveniently transitted drill rig is designed. Lift mechanism,vibration and impact mechanism,the base,orienting mechanism and etc.are selected and designed by routine method. The hand winch is selected as lift mechanism, the improved vibration- impact rammer is selected as vibration and impact mechanism. The skid-framework base is selected, rack of three columns is selected.The drill rig is made and manufactured, then two sampling tests are carried out.The drill rig is improved duly after the first test. The entire soil sampling is obtained when the second test.Good drilling performance of the drill rig is verified, yet the new problems apper,the drill rig needs to be improved ulteriorly.The research of the drill rig has an important significance of enriching of shallow hole sampling equipment,of meeting the drilling and sampling construction in remote area and dry area ,of meeting the need for obtaining pure sampling.