公开(公告)号：US3727701A

公开(公告)日：1973-04-17

申请号：US3727701D

申请日：1971-02-08

申请人： INST GORNOGO DELA SIBIRSKOGO O

发明人： SUDNISHNIKOV B ,  SOLOMKO V ,  REINSBURG A ,  TUPITSYN K ,  PLAVSKIKH V ,  KOSTYLEV A ,  GURKOV K

IPC分类号： E02D3/02 ,  E02D3/054 ,  E02D3/08 ,  E02D15/08 ,  E21B4/14 ,  E21B3/12

CPC分类号： E02D3/054 ,  E02D3/02 ,  E02D3/08 ,  E02D15/08 ,  E21B4/145

摘要： The invention relates to reversible air-punching mechanisms for making holes in soil by compaction. According to the invention, the mechanism comprises a hollow housing in which a striker reciprocated by compressed air, strikes the housing and thus moves it through the ground. The compressed air is delivered into the working chambers through an air-feed bushing which is provided with two rows of ports getting alternately in line with the corresponding rows of ports in the hollow slide valve accommodated in the bushing as said slide valve turns around its longitudinal axis. For turning the slide valve, it is connected with the bushing by a projection which moves along an enclosed shaped recess during the reciprocating motion of the slide valve when the mechanism is reversed by cutting off momentarily the supply of compressed air to the mechanism.

摘要翻译： 本发明涉及通过压实在土壤中制造孔的可逆气动冲孔机构。