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223results about "Drilling with mechanical conveying" patented technology

Hydraulic variable-diameter reamer drill bit of long spiral drilling machine and cast-in-place pile construction method

The invention discloses a hydraulic variable-diameter reamer drill bit of a long spiral drilling machine and a cast-in-place pile construction method. The hydraulic variable-diameter reamer drill bitincludes the long spiral drilling machine, a detachable upper power head is mounted on the long spiral drilling machine, a spiral drilling rod can be made to rotate, a hydraulic system is arranged inthe upper power head, a drill bit system is fixedly arranged at the lower end of the spiral drilling rod, the drill bit system is provided with a first cavity and a second cavity, an outwardly movablefirst drill bit with a piston is mounted in the first cavity, an outwardly extensible and movable second drill bit with an a piston is mounted in the second cavity, a pouring channel, a first hole channel and a second hole channel are formed in the spiral drilling rod, a rotatable lower power head is arranged on the lower part of the upper power head, a detachable rotating sleeve is arranged at the lower end of the lower power head, and the sleeve wraps the outer side of the drill bit system and enables the drill bit system to move vertically. While sleeve pulling out and diameter expanding can be realized, meanwhile, concrete can be poured, the construction efficiency is high, economic benefits is good, and bearing capacity of the pile end and lateral resistance of a pile body can be effectively improved.
Owner:BEIJING ZHONGYAN DADI TECH CO LTD

Portable power rotary device provided with drill having earthwork and cut-off functions

The present invention relates to a rotary device in which a drill for soil earthwork is rotatably mounted, wherein the drill comprises: a shaft part; a screw, formed along the outer circumferential surface of the shaft part, for earthwork and the transportation of soil generated by the earthwork; a rotary shaft, formed on the upper part of the shaft part; a connection socket, formed on the rotary shaft, for adjusting the length; and a fixed shaft part, formed on the lower part of the shaft part, for being inserted and rotated into the soil for earthwork. More specifically, the present invention relates to a portable power rotary device provided with a drill having earthwork and cut-off functions, wherein a pair of horizontal blades face each other on the connection part between the shaft part and the fixed shaft part; screws, formed in every other layer, are symmetrically and integrally connected to each other on the pair of horizontal blades, for transferring soil upwardly; cutting blades, which are symmetrical with each other, are inclined downwardly and integrally formed on the pair of horizontal blades; a plurality of vertical blades, formed to be spaced apart from each other at a predetermined distance, protrude vertically on the upper portion of the lower wing of the screw; and when performing earthwork, soil and tree roots are cut by the cutting blades, and soil lumps, transferred along the screw, are cut again by the vertical blades.
Owner:金荣宽

Bionic gopher intelligent excavating system

InactiveCN109057707AAchieve mechanical simplificationFast crossingDrilling with mechanical conveyingDerricks/mastsEngineeringAlternative movement
The invention relates to a bionic gopher intelligent excavating system. The system comprises a drill bit, a shell, a driving mechanism, a telescopic assembly and an adjustable support foot. The drillbit is arranged in the front end of the shell, the driving mechanism is arranged in the shell, and an output shaft of the driving mechanism is connected with the drill bit. The telescopic assembly isarranged in the shell and the telescopic end of the telescopic assembly extends from the back end of the shell to the outside of the shell and is rotationally connected with the adjustable support foot. The system has the advantages that the bionic gopher intelligent excavating system realizes the mechanical simplification of the excavating function of a gopher, makes a whole system structure simple and small, fully considers the coordination of the adjustable support foot and the drill bit which are used as surrounding rocks, and through the expansion of the system itself and alternative movement, the whole system is moved forward, so that the excavation efficiency is improved, the hard bottom layer is adapted, the risk of drilling accidents is reduced, the stratum is quickly went through, the geological data is explored, the safety and accuracy of the drilling construction are improved.
Owner:WUHAN UNIV

Tunnel drilling-blasting construction, tunneling and risk elimination apparatus and method of using same

The invention discloses a tunnel drilling-blasting construction, a tunneling and risk elimination apparatus and a method of using the same; the tunnel drilling-blasting construction, a tunneling and risk elimination apparatus comprises a traveling unit, a rotating unit, an arm frame unit, and a hydraulic breaking and drilling unit; the traveling unit comprises wheels, a chassis, a conveyer belt and a motor; the rotating unit comprises a rotating chassis, a cab, and a machine chamber; the arm frame unit comprises a primary mechanical arm, a primary cylinder, a secondary cylinder, a secondary mechanical arm, a tertiary cylinder, a quaternary cylinder, and a dust treatment system; the hydraulic breaking and drilling unit comprises a fixed base, a slide rail, an explosive clamp, a percussion drill and a drill pipe. The tunnel drilling-blasting construction, a tunneling and risk elimination apparatus is a tunnel drilling-blasting construction, tunneling and risk elimination machine having risk elimination, drilling and charging functions, has high automation level, good flexibility and high safety, is convenient and simple to operate, has reasonably set system functions, enables effectively improved working efficiency and greatly saved construction time, and is applicable to the construction in various complex tunnel environments.
Owner:SHANDONG UNIV
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