INCREASE OF OPERATION EFFICIENCY OF CUTTING-CHIPPING BITS BY RIGGING OF PARTS COMBINED IN FORM

There the purpose is to increase the operation efficiency of cutting-chipping bits by the combined arrangement of cutters of diverse form on the basis of studies of distribution of interaction variables over the sections of working surfaces. The degree of influence of form of parts on the operation variables of cutting-chipping bits has been ascertained. The dependences of distribution of force variables and of energy variables over the working surface of rock-caving tool of cutting-chipping type, which was rigged by the parts of diverse form, have been ascertained. The rigging procedcre of rock-caving tool by the parts combined in form has been developed. The bits of small diameter have been developed and have been put into operation. The three-blade bits rigged by the combined parts have been tested by production and have been put into operation. The rigging procedure of rock-caving tool by the parts combined in form is used at the making of bits. More 3ths bits of cutting-chipping type with 73 mm diameter have been introduced and have been tried out in the PA "Bashneft" (Tuimazy)Available from VNTIC / VNTIC - Scientific & Technical Information Centre of RussiaSIGLERURussian Federatio