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Percussive augmenter of rotary drills for operating as a rotary-hammer drill
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Copyright Year | 2014 |
| Description | A percussive augmenter bit includes a connection shaft for mounting the bit onto a rotary drill. In a first modality, an actuator percussively drives the bit, and an electric slip-ring provides power to the actuator while being rotated by the drill. Hammering action from the actuator and rotation from the drill are applied directly to material being drilled. In a second modality, a percussive augmenter includes an actuator that operates as a hammering mechanism that drives a free mass into the bit creating stress pulses that fracture material that is in contact with the bit. |
| File Size | 818138 |
| Page Count | 10 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20150003193 |
| Archival Resource Key | ark:/13960/t6rz48f8f |
| Language | English |
| Publisher Date | 2014-02-04 |
| Access Restriction | Open |
| Subject Keyword | Mechanical Engineering Drilling Patents Actuators Percussion Rotation Shafts Machine Elements Augmentation Mounting Stress-strain Relationships Ultrasonic Machining Hammers Drills Vibration Effects Fracturing Drill Bits Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Patent |
