11results about How to "Increased drilling depth" patented technology

The invention relates to the field of geological detection of coal mine advanced detection drilling, in particular to an active and passive combined vibration detection method for drilling geology, which comprises the following steps of: recording the drilling depth during drilling while drilling in coal mine advanced detection drilling, and collecting a vibration signal generated by rock breaking of a drill bit as a passive detection signal; the lithology of a drilling point of the drill bit is analyzed according to the passive detection signal, and the lithology of a drilling section is determined according to the drilling depth; shock waves are excited in a gap controllable source excitation pipe of a continuous drill rod, reflected waves are collected to serve as active detection signals, and the geological breaking grade around a drilling section hole is analyzed according to the active detection signals; determining the collapse state of the drilling section based on the lithology of the drilling section and the geological fracture grade around the hole; and based on the collapse state, determining the risk levels of drill holding and drill breaking of the drill rod of the drilling section, and performing early warning according to the risk levels. According to the method, the drill holding and breaking conditions can be judged in real time in the drilling process, normal drilling construction is guaranteed, the drilling depth is increased, and the probability that drilling machine equipment is damaged is reduced.

The invention relates to the technical field of drilling machines, and discloses a portable metal mine exploration drilling machine which comprises a bottom plate, a sliding seat, a driving module and a drilling machine body. One end of the bottom plate is constructed to be a hinged end connected with the sliding seat, and correspondingly, the bottom plate is provided with a storage station which rotates relative to the sliding seat and is folded and a drilling station which is rotationally separated from the sliding seat; the sliding seat extends upwards, and one outer surface of the sliding seat and the connecting end of the bottom plate are arranged on the same side and provided with a first transmission strip. The drilling machine body is connected with the sliding base through a driving module, and correspondingly, the driving module is connected with the first transmission strip so that the drilling machine body can ascend and descend in a reciprocating mode along the sliding base. When a worker carries the portable drilling machine for metal mine exploration to move, the bottom plate is located at the folded storage station, so that the occupied space is reduced, and the drilling machine is more convenient to carry; when a worker conducts drilling operation, the bottom plate rotates to a drilling station, and therefore follow-up operation can be conveniently carried out.

This application provides a coal mine gas extraction device, relating to the field of gas extraction technology. It includes a mounting frame, a mounting plate, a drill rod, an extension rod, a lifting assembly, and a rotating assembly. The lifting assembly is mounted on the mounting frame and is used to move the mounting plate up and down. The extension rod is rotatably mounted on the mounting plate via bearings. The rotating assembly is mounted on the mounting plate and is used to rotate the extension rod. The drill rod is slidably sleeved on the extension rod. A first locking assembly is provided between the top of the extension rod and the drill rod, and a second locking assembly is provided between the bottom of the extension rod and the drill rod. The interiors of both the drill rod and the extension rod are hollow, and a through hole is provided at the bottom of the drill rod. By using hollow extension rods and drill rods, and inserting extraction pipes into the extension rods and drill rods, friction between the extraction pipes and the borehole wall is prevented.

The present invention relates to the technical field of equipment for coal pillar drilling, and discloses a pressure relief device for coal pillar drilling along a fault-shaped section, comprising: a drilling rod, and also comprising: a support block, which is arranged below the drilling rod; a first connecting rod, which is fixedly connected to the upper surface of the support block; a second connecting rod, which is fixedly connected to the surface of the support block, and is annularly arranged in at least three groups; a rotating cylinder, which is rotatably connected to the surface of the second connecting rod; a first bevel gear, which is rotatably connected to the surface of the first connecting rod; and a second bevel gear, which is fixedly connected to the surface of the rotating cylinder; when the rotating cylinder rotates, it drives the sliding frame to rotate synchronously, so that when the sliding frame rotates, the cutting block on the surface contacts and cuts the coal rock mass, thereby drilling the coal rock mass; by setting multiple groups of connecting plates and multiple groups of cutting blocks, the coal rock mass can be cut and drilled from multiple aspects during cutting, which is convenient for drilling from weak points and improves the drilling efficiency.

The invention belongs to the field of coal mine underground drilling, and particularly discloses a pressure-relief blowout-prevention combined spiral drilling tool for upward hole drilling and a using method thereof.The pressure-relief blowout-prevention combined spiral drilling tool comprises a spiral slag feeding drill bit, a sieve hole spiral drill rod section, a spiral drill rod section, a rotary slag discharging device and a drill tail slag collecting device which are arranged in an inclined upward drill hole; 2-4 continuous spiral blades are arranged on the outer surfaces of the spiral slag feeding drill bit, the screen hole spiral drill rod section and the spiral drill rod section, and a spiral slag discharging channel is formed between every two adjacent spiral blades; a plurality of slag inlets are formed in the spiral slag feeding drill bit, a plurality of radial slag inlets are formed in the spiral slag discharging channel of the screen hole spiral drill rod section, and the slag inlets and the slag inlets are all communicated with the air leakage slag discharging channel. According to the drilling tool, the gas leakage deslagging channel located in the center of the drilling tool is additionally arranged, in the drilling process, on one hand, the deslagging efficiency can be greatly improved, the drilling resistance is reduced, on the other hand, high-pressure gas can be prevented from being accumulated in a drill hole, and the pressure relief and blowout prevention functions are achieved.

The utility model relates to the technical field of furniture processing, and discloses a three-row drill, both sides of the bottom of a transverse plate are fixedly connected with vertical rods, the transverse plate is provided with three adjusters, each adjuster comprises a first adjusting frame, a first motor and a threaded rod, the top of each first adjusting frame is in threaded connection with a bolt, and the front surface of each first adjusting frame is fixedly connected with a storage rack; a first motor is fixedly connected to the top of the storage rack, the driving end of the first motor penetrates through the storage rack and is fixedly connected with a threaded rod, the bottom end of the threaded rod is sleeved with an adjusting rod in a threaded mode, a fastening plate is fixedly connected to the bottom end of the adjusting rod, a second motor is fixedly connected to the top of the fastening plate, and a lifting mechanism is installed between the two vertical rods. The adjustor not only can adjust the distance between the adjacent drill bits, but also can accurately control the downward movement amount of the drill bits, so that the drilling depth can be accurately controlled, the drilling accuracy is improved, the problems that the drilling quality is not up to the standard due to the deviation of the drilling depth and the like are solved, and actual use is easy.

The utility model relates to the technical field of civil engineering equipment, and discloses a drilling device for civil engineering detection, which comprises a workbench, and a splitting mechanism is arranged outside the workbench. According to the drilling device for civil engineering detection, by arranging the splitting mechanism, when drilling detection is needed, the workbench is placed on the ground where drilling is needed, a clamping column is clamped into a clamping groove in the top of a second threaded rod, and by arranging a movable block, a spring and a movable block, after the clamping column enters the clamping groove, the movable block is clamped leftwards through the spring; by arranging a rotating disc, a first threaded rod, a second threaded rod and a threaded hole, the second threaded rod can conduct downward slow drilling, and when deeper drilling is needed, an insertion rod is used for pushing a push plate to enable a movable block to return, more first threaded rods are installed, and the drilling depth is increased. And the soil quality of a deeper underground layer is detected by splicing the drill rods with different lengths.

The utility model relates to the technical field of excavating drilling machines, in particular to a reverse circulation drilling machine which comprises a drilling machine advancing body, a power output device and a drilling rod. The power output device comprises a power head, an upper pump and a lower pump, the drilling machine advancing body is connected with the power head through a steel wire rope, the upper pump is installed above the power head through an upper pump fixing frame, the lower pump is arranged below the power head, the lower end of the power head is connected with an upper pump and lower pump connecting pipe, and the upper pump and lower pump connecting pipe is connected with the drilling machine advancing body. The end, away from the power head, of the upper and lower pump connecting pipe is connected with the lower pump, and the bottom end of the power output device is detachably connected with a drill rod. The drilling depth can be effectively increased, the circulation effect of the drilling machine can be effectively improved, and the drilling depth can be increased in the drilling process.

The invention discloses a Fibonacci spiral bionic drilling tool for a complex coal rock stratum and a drilling method. The drilling tool comprises a Fibonacci spiral bionic drill bit and a Fibonacci drill rod, and the Fibonacci spiral bionic drill bit is installed at the right end of the Fibonacci drill rod; the Fibonacci spiral bionic drill bit comprises a drill bit base body and a plurality of cutting edges, the drill bit base body comprises a cylinder part and a fillet part, and the fillet part is arranged at the right end of the cylinder part; the overall radian and the radius of each cutting edge are 21 mm and 34 mm respectively, the radians of the adjacent part of Fibonacci spiral arc lines are the same, and each cutting edge is provided with a diamond compact; a cylindrical inner cavity is formed in the right end of the interior of the cylindrical part, a mounting cavity is formed in the left end of the interior of the cylindrical part, first internal threads are arranged on the inner wall of the mounting cavity, the right end of the mounting cavity communicates with the cylindrical inner cavity, and a plurality of cylindrical channels are formed in the drill bit base body. The drilling tool is a bionic drilling tool formed by transforming a common drilling tool on the basis of the bionics principle, and the drilling depth and the drilling efficiency are improved.

The invention discloses a drilling, punching and protecting integrated pressure relief and blowout prevention hole construction process which comprises the following steps: firstly, moving a drilling machine to a drilling position, fixing the drilling machine, and mounting a pressure relief and blowout prevention spiral drilling tool on the drilling machine; then, the construction angle of the drilling machine is adjusted, and the drilling machine is started to drive the pressure-relief blowout-prevention spiral drilling tool to drill; after drilling to a designated position, high-pressure water flow is supplied into the drilling tool for punching operation; and after punching is completed, the hole protection device is conveyed to the bottom of the drill hole through the center of the drilling tool, and the hole protection device is clamped on the wall of the drill hole to achieve hole protection. When the pressure-relief blowout-prevention spiral drilling tool is used for conducting upward hole drilling in an underground coal mine, one part of drilling slag outside the drilling tool is discharged outwards through the spiral conveying effect of blades on the outer surface of the pressure-relief blowout-prevention drilling tool, and the other part of the drilling slag is discharged outwards through the first pressure-relief slag discharging channel, the second pressure-relief slag discharging channel and the third pressure-relief slag discharging channel. The method is convenient to operate, high-pressure gas can be prevented from being accumulated in the drill hole, the drill hole deslagging efficiency is greatly improved, and the rotating resistance of the drill rod is reduced.

The invention discloses a novel cross-layer drilling pressure relief blowout prevention spiral drilling tool which comprises a plurality of sieve hole spiral drilling rods which are connected with one another, an opening and closing type drilling and punching drill bit arranged at the front end of the sieve hole spiral drilling rod at the foremost end and a flow supply slag discharging device arranged at the rear end of the sieve hole spiral drilling rod at the rearmost end. One part of drilling slag outside the drilling tool is discharged outwards through the spiral conveying effect of blades on the outer surface of the pressure-relief blowout-prevention drilling tool, and the other part of drilling slag enters a first pressure-relief slag discharging channel and a second pressure-relief slag discharging channel of the pressure-relief blowout-prevention spiral drilling tool through a first air leakage slag inlet screen hole and a second air leakage slag inlet screen hole. And the entered drilling slag is discharged outwards along the first pressure relief and slag discharge channel, the second pressure relief and slag discharge channel and the third pressure relief and slag discharge channel under the combined action of fluid and gravity. The device is simple in structure and convenient to operate, high-pressure gas can be prevented from being accumulated in a drill hole, the pressure relief and blowout prevention functions are achieved, the deslagging efficiency of the drill hole can be greatly improved, and the rotation resistance of the drill rod is reduced.