In engineering geological drilling and engineering construction drilling, auger drilling is commonly used in soft strata drilling method. It is a dry rotary drilling method. When drilling, the motor drives the spiral drill rod through the reducer (the spiral drill rod is welded on the cylindrical rod with spiral blade shape such as twist drill rod to connect the wing bit). Under the action of bit weight, the drill bit turns into the formation, and the formation is cut to the next layer according to the spiral line, and the soil debris is transferred back to the hole along the spiral blade.
What is the Planetary Gear?
Planetary gear is a type of gear mechanism, which is composed of four components, namely, the sun wheel, a plurality of planetary gears, an internal gear and a planetary frame connecting planetary gears. Its structure is very complicated, which makes it difficult to manufacture or manufacture. It can achieve a high reduction ratio according to the gear, but it is a type of mechanism that is more suitable for decelerating mechanisms requiring intelligence and performance, such as automotive transmissions. A simple planetary gear set consists of three key components: a sun wheel (central gear) located at the core, multiple planetary gears and tooth rings (outer gear).
In a planetary gear device (also called a planetary gear device), the core gear (called a sun gear) serves as the input and drive for the group.