Large diameter drill bit impacted rock-breaking detection apparatus

Abstract

The invention discloses a large diameter drill bit impacted rock-breaking detection apparatus, and belongs to the field of construction equipment performance testing apparatuses. A special structure is adopted to realize drill bit impacted rock-breaking simulation. A strain gauge is adhered on a position to be observed of a drill bit. The drill bit is hung by a steel rope. A strong electric magnetis electrified to connect a lifting device to a material container through the magnetic force. The servo motor of the lifting device lifts a material in the material container to a certain height, aspring is in a compression state at that time, then the power is cut off suddenly, under the action of the spring, the material in the material container upwards impacts the drill bit, after impacting, the spring gradually stabilizes, the lifting device draws back the material container; the penetration or rock-breaking situation of the material can be observed, data is provided for the research on the rock-breaking mechanism; and the apparatus utilizes a rock material to simulate the actual impacting process of an impacting drill bit so as to obtain the data of the rock-breaking process and drill bit breaking process.

Description

technical field [0001] The invention relates to a large-diameter drill bit impact rock breaking detection device, in particular adopts a special structure to realize the impact rock breaking simulation of the drill bit, and belongs to the field of construction equipment performance testing devices. Background technique [0002] In occasions such as bridge piling and large-scale building foundation piling, a large-diameter stepped drill bit with a diameter of 2.5 meters and a weight of 8 tons is often required for piling. This kind of drill bit is usually formed by welding and has a huge volume. Its drilling efficiency is relatively low. The traditional drill bit has been greatly improved, but its service life is often short, which greatly reduces its utilization rate and causes great losses. Because it is not convenient to do drill bit damage research and rock breaking mechanism research in actual production, this kind of drill bit The damage mechanism mostly stays at the so...

AI Technical Summary

Problems solved by technology

[0002] In occasions such as bridge piling and large-scale building foundation piling, a large-diameter stepped drill bit with a diameter of 2.5 meters and a weight of 8 tons is often required for piling. This kind of drill bit is usually formed by welding and has a huge volume. Its drilling efficiency is relatively low. The traditional drill bit has been greatly improved, but its service life is often short, which greatly reduces its utilization rate and causes great losses. Because it is not convenient to do drill bit damage research and rock breaking mechanism research in actual production, this kind of drill bit The damage mechanism mostly stays at the software simulation level, and there is still a big gap with the actual situation. Therefore, there is an urgent need for a large-diameter drill bit impact rock-breaking detection device, and the damage mechanism and rock-breaking mechanism are studied by recording actual data.

Images