6results about How to "Drilling smoothly" patented technology

The application relates to the technical field of soil pollution treatment, and discloses soil pollution control and treatment equipment for piling engineering, which comprises a vehicle body, and a hydraulic cylinder fixed end is hingedly installed on the vehicle body. The soil pollution control and treatment equipment for piling engineering is provided with a treatment assembly, an asynchronous motor and a threaded rod, so that the moving frame can move axially; the asynchronous motor, a rotating shaft and a transmission part are used to make the drill rod rotate in the bracket to drill and pile; a medicine bucket, a water pump, an elbow and a stop electromagnetic valve are used to make the medicine enter the inside of the drill rod through a hose, the elbow, a cavity and a through hole, and then sprayed into the soil at the drilling point through the small-head-end opening of the conical cover, so that the pollutants in the soil can be degraded, converted and absorbed; the soil pollution control and treatment can be better carried out in the piling process; the rotating rod, the rotating drum and the self weight of the medicine are used to make the medicine bucket driven by the rectangular plate always keep in a vertical state, so that the medicine is prevented from leaking.

The application discloses a self-centering rotary blowout preventer for tunnel surrounding rock drilling construction and relates to the technical field of tunnel drilling construction. The self-centering rotary blowout preventer comprises a fixing assembly and a rotating assembly. The fixing assembly comprises a fixing pipe, a discharge pipe and a sleeve. One end of the sleeve is rotatably arranged in one end of the fixing pipe. The rotating assembly comprises a coaxially arranged connecting disc and a rubber sleeve. The large-diameter end of the rubber sleeve is fixedly connected with one end of the connecting disc. One end of a drill rod is connected with a drill bit after sequentially penetrating through the connecting disc and the rubber sleeve. The connecting disc is threadedly connected with the sleeve. The first sealing ring is arranged between the sleeve and the fixing pipe. The second sealing ring is arranged between the rubber sleeve and the sleeve. The sliding sealing effect between the rubber sleeve and the drill rod can effectively prevent underground water from being sprayed outwards along the axial direction of the drill hole during the whole drilling process. The fixing assembly further comprises a centering mechanism which constitutes a closed hydraulic system. The centering mechanism can realize the self-centering of the front end of the drill rod when the fixing assembly and the rotating assembly are connected, thereby ensuring the drilling quality.

The present application relates to the field of metal combination processing, and discloses a cast iron casting drilling and polishing integrated combination processing device and method, which comprises a drilling machine and a polishing machine; the drilling machine and the polishing machine sequentially perform drilling and polishing work on the parts to form part holes; the drilling machine comprises a drill bit and a drilling driving part, and the polishing machine comprises a polishing rod and a polishing driving part; the polishing rod is located at an eccentric position of the part hole, the outer wall of the polishing rod is in contact with the inner wall of the part hole, and the rotation shaft of the polishing driving part is coaxial with the part hole to be polished, so that the polishing driving part drives the polishing rod to rotate axially along the part hole to be polished. The present application integrates the drilling and polishing processes on the same platform, completes the processing and inner wall polishing of the part hole through the continuous operation of the drilling machine and the polishing machine, reduces the part transfer link, shortens the production cycle, reduces the labor intervention cost, and significantly improves the batch processing efficiency of the parts.

The invention discloses a deep well multi-stage self-adaptive tripping prevention control tool string and system and application. The tool string comprises an outer barrel, a first-stage vibration reduction unit, a second-stage vibration reduction starting unit, a second-stage vibration reduction unit and a drill bit driving unit, wherein the first-stage vibration reduction unit, the second-stage vibration reduction starting unit and the second-stage vibration reduction unit are sequentially arranged in the outer barrel; the drill bit driving unit comprises a conversion connector, a spiral shell, a spiral mandrel and a locking connector. The adapter is connected with the lower end of the outer cylinder; the spiral shell is connected with the lower end of the adapter; partial area of the spiral mandrel is located in the spiral shell and is in threaded fit with the spiral shell; the locking connector is connected with the lower end of the spiral shell and limits the spiral mandrel, and the lower end of the spiral mandrel is externally connected with a drill bit. When the tool string is used for drilling high-pressure, high-temperature and abnormal stratums in an ultra-deep well, the tool string can be used for achieving self-adaptive regulation and control, the tripping prevention effect is achieved, meanwhile, the phenomena of drill jamming and stick-slip are eliminated, while-drilling instruments are protected, and smooth drilling of the deep well and the ultra-deep well is guaranteed.

The application provides a rock coring device for geotechnical engineering investigation, and belongs to the field of geotechnical exploration equipment. The rock coring device for geotechnical engineering investigation comprises a drilling cylinder, a cutting part and a sampling cylinder. During drilling, the cutting part is at a working angle, and the reaction force of the cutting edge pushes the cutting part to deflect inward, and the partial limitation of the sampling cylinder to the inward deflection of the cutting part enables the cutting part to be positioned at the working angle; after the sampling cylinder is filled with samples, the sampling cylinder can move axially relative to the drilling cylinder before sampling to release the limitation on the cutting part, and then the cutting part is pushed by the reaction force to deflect inward and cut the root of the sample, thereby weakening the root of the sample, and when the coring device is lifted, the sample is more likely to be broken from the root, the sample is prevented from falling off, and the continuity of the sample is ensured.

The present application belongs to the field of gear transmission device, and discloses a gear transmission device and a drilling equipment applied to clay layer, which comprises a gear transmission device arranged in the installation cavity of a drill bit and used for conveying the rotating force of a drill rod, the gear transmission device comprises a striking tooth part arranged in the radial direction of the drill bit, a plurality of hit tooth parts arranged in the circumferential direction of the side wall of the installation cavity in a ring shape, and a differential transmission part used for transmitting the rotating force of the drill rod to the striking tooth part, the hit tooth part is fixed to the side wall of the installation cavity and constitutes a ring-shaped tooth, the differential transmission part receives the rotating force of the drill rod and drives the striking tooth part to rotate at a speed lower than the rotating speed of the drill rod, and the striking tooth part periodically strikes the hit tooth part during rotation to store energy and simultaneously transmit a vibration force to the drill bit.