Pipe ea ho cheka ea HDD e khethoa ke thepa ea phala ea ho phunya, sebopeho sa karolo ea sefapano, boholo ba geometri le bolelele ba litlhaloso.E khethiloe ho ea ka boholo ba ts'ebetso ea ts'ebetso ea "rock drill", tekanyo ea bonolo le boima ba lefika, bophara ba hlooho ea ho phunya, botebo ba lesoba la lefika, litlhoko tsa ho hokahanya ha lejoe le sebelisoang drill tail shank, le mokhoa oa phepelo oa rock drill.
Hangata tlas'a motheo oa ho finyella litlhoko tsa ho phunya, liphaephe tsa ho phunya tse nang le li-cross-section tse itekanetseng, boima bo bobebe, bolelele bo khutšoanyane, bo tiileng bo botle le bophelo bo bolelele bo lokela ho khethoa ka hohle kamoo ho ka khonehang. maqhama a taper le li-cross-sections tsa hexagonal hangata li khethoa.Boholo ba mohatla oa ho cheka ke 108mm x H22 'me thepa ke 55SiMnMo, 95CrMo, joalo-joalo Bakeng sa ho epolla ka tsela e bataletseng le ho cheka majoe, H25, H28, H32, le H35 li-cross-section tse nang le likhokahano tse nang le li-cross-section tse nang le bophara bo lekanang, ho fokotsa bophara. 'me ka kakaretso ho khethiloe lithupa tsa ho cheka tse fetolang ka potlako bophara bo tšoanang, bophara bo fokotsang, 'me lithupa tsa ho phunya ka potlako le liphaephe tsa ho phunya hangata lia khethoa.
Molao-motheo oa khetho ea bolelele ba litlhaloso ke: o khethoa ho ea ka litlhoko tsa botebo ba ho cheka, ka kakaretso ho 0.3-7.3 Ka har'a mefuta e mengata.
Nako ea poso: Dec-19-2022