FIELD: construction.
SUBSTANCE: invention pertains to drilling technology, and particularly to the method of installing a rock bit. The method involves the following stages: the legs and rock roller bits are numbered, diameter and linear dimensions of bearing pathways are measured, recorded into a computer and using a special computer program, the "leg-rock roller bit" pairs are selected for each section and drilling bit section. The sections are gathered and welded together. For each drilling bit section, the optimum difference in radial and axial gaps are individually calculated based on the criterion of minimum maximum contact pressure in the support. The "leg-rock roller bit" pairs and drilling bit sections which have minimum deviation of these parameters from corresponding optimum values are then chosen.
EFFECT: increased durability of the support of the drill bit, its increased penetration due to equal distribution of contact loads on the support components.
11 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| PROCESS OF CONE DRILL ASSEMBLY | 2000 |
|
RU2184203C2 |
| METHOD OF SELECTIVE ASSEMBLY OF INSERT BIT | 2015 |
|
RU2612415C1 |
| CONE BIT SUPPORT | 2013 |
|
RU2549631C2 |
| DEMOUNTABLE CONE BIT WITH SUPPORTS OF ROLLER CUTTERS ON ROLLER BEARINGS WITH SEPARATORS AND WITH SHORTENED DEMOUNTABLE SECTIONS OF LEGS BY GRIBENNIKOV-MALINKIN | 2006 |
|
RU2347883C2 |
| METHOD OF ASSEMBLING AND CUTTING OF DRILLING CONE ROCK BIT | 2006 |
|
RU2324804C2 |
| METHOD OF PRODUCING ROLLER DRILL BIT | 2012 |
|
RU2499120C2 |
| DEMOUNTABLE ROCK DRILL WITH CONE ROLLERS ON BALL BEARINGS WITH CAGES | 2006 |
|
RU2333341C2 |
| BIT GREBENNIKOV-MALINKIN-USHAKOVA'S CONE CUTTER | 2006 |
|
RU2334075C2 |
| ROLLER BIT BEARING | 1991 |
|
RU2019671C1 |
| DRILL ROCK BIT WITH SEALED SUPPORT | 2009 |
|
RU2423598C2 |
