The Development of the LWD-200B Full Hydraulic Open Cut Mine Drill
Bibliographic record
Abstract
In order to improve the technical level, perforation efficiency and ability of LWD-200B full hydraulic open cut mine drill to adapt to the complex geological conditions, we developed LWD-200B multi-function full hydraulic open cut mine drill, the drill has rotary cutting, impact and roller bit drill three functions.The drill travel use hydraulic motor to drive crawler belt running gear, low speed high torque hydraulic motor to direct top drive drilling rod. Pressure and lifting system use a long stroke hydraulic cylinder, wire rope and pulley mechanism, load sensing constant power variable pump , load sensing electromagnetic proportional multi-way directional valve. The control system uses electronic control handle and PLC controller, design pressure, speed, length, temperature sensors etc. and GPS base station, with real-time data acquisition, display, lithology automatic identification, closed-loop feedback control, GPS precise positioning , the manual and automatic drilling, specified depth or level drilling function. It applies to drilling diameter 150mm ~ 200mm blast hole in various types of open pit mine.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 0.001 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".