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7715 results about "Drilling machines" patented technology

A drilling machine, called a drill press, is used to cut holes into or through metal, wood, or other materials (Figure 6-1). Drilling machines use a drilling tool that has cutting edges at its point. This cutting tool is held in the drill press by a chuck or Morse taper and is rotated and fed into the work at variable speeds.

Simple and convenient thin metal sheet drilling machine device

InactiveCN106984698AImplement manual controlRealize manual control up and down switching mobile workMetal-working feeding devicesPositioning devicesThin metalDrive shaft
The invention discloses a simple and convenient thin metal sheet drilling machine device. The device comprises a device body. An operating groove is formed in the end face of the right side of the device body. A switching cavity is formed in the portion, on the left side of the operating groove, of the device body. A first inner spline shaft and a second inner spline shaft are arranged on the inner walls of the upper side and the lower side of the switching cavity correspondingly. A first sliding groove is formed in the inner wall of the left side of the switching cavity. A sediment groove is formed in the inner bottom wall of the first sliding groove. A first guide rod is arranged between the inner bottom wall of the sediment groove and the inner top wall of the first sliding groove. A first sliding block extending rightwards is slidably connected to the first guide rod in a matched mode. A first spring is arranged on the outer surface of the first guide rod located at the bottom of the first sliding block in a surrounding mode. A right extending section of the first sliding block extends into the switching cavity and abuts against the inner wall of the right side of the switching cavity in a sliding fit mode. A motor is arranged in the first sliding block in the switching cavity. Driving shafts are arranged at the ends of the upper side and the lower side of the motor. A transmission cavity is formed in the portion, above the switching cavity, in the device body. The device is simple in structure, convenient to operate, low in manufacturing and maintaining cost, high in drilling speed and stability and good in drilling quality.
Owner:衢州市洼帝尔数控设备有限公司

Pocket hole drilling machine

A pocket-hole drilling apparatus for drilling pocket-holes in a workpiece is disclosed. In one embodiment, an initiation switch actuates clamping the workpiece and the movement of a drilling module to cut a pocket-hole. The drilling module has a motor and a step-drill mounted thereon, which is slidably mounted on a guide module. The axis of the drilling module movement intersects work surface. In another embodiment, a movable fence provides the adjustability of pocket-hole depth. In yet another embodiment, two actuator tips are disposed in a fence to prevent the drilling of a pocket-hole through the sidewall of a workpiece. In still another embodiment, a short stroke clamping actuator is used to prevent human finger injury. In still another embodiment, a blower or an ejector pump is used to remove wood chips, wherein the blower is either attached to a drilling motor or to a separate blower motor; the ejector pump is mounted near the drill guide. In still another embodiment, two pocket-drills are slidably mounted on a block so as to drill two pocket-holes and to adjust pocket-hole spacing. In still another embodiment, a mounting structure is disposed either underneath or above the work surface to mount drilling module(s) so as to drill multiple pocket-holes into a wide workpiece at one setup. In still another embodiment, a drill guide forms a clearance for the cutting edges of the step-drill to minimize wear on the edges. In a further embodiment, an actuator provides both clamping and drilling movements, wherein the actuator is an electric motor or a hand lever.
Owner:KREG ENTERPRISES

Method for integrated comprehensive management of gas in low-permeability single coal bed

The invention relates to a method for integrated comprehensive management of gas in a low-permeability single coal bed, which can effectively solve the problem of comprehensive management and utilization of the gas. A technical scheme of the method comprises the following steps of: firstly, drilling holes, wherein a high-torque drilling machine and a rifle or a trihedral drill stem are used for solving the phenomenon of clamping the drill stem caused by collapsing and jetting of the holes in the hole drilling process; and then, performing hydraulic fracturing permeability improvement on the coal body, drilling holes for pre-split blasting, performing gas drainage, and recycling the drained gas, thereby implementing the integrated management of the gas. With the method provided by the invention, the permeability of the coal body is improved, a pre-draining rate of the gas is improved, and the drained gas is recycled, so that the drilled holes are radically prevented from being blocked in the construction process, the problem of difficulties in draining the gas in the low-permeability coal bed with a drilling tool having insufficient capability in the drilling construction is solved, consequently, outburst risk of the coal and the gas is reduced, outburst accidents of the coal and the gas are reduced and even avoided, and mine production safety and lives of coal mine workers are ensured, so that the method brings great economic and social benefits.
Owner:平顶山天安煤业股份有限公司十矿

Production process method of pipe whip restraint steel structure of main power house of nuclear power station conventional island

The invention belongs to the technical field of pipe whip restraint steel structures of main power houses of nuclear power station conventional islands, in particular to a production process method of the pipe whip restraint steel structure of the main power house of the nuclear power station conventional island, which comprises the lofting process, the marking-off and scribing process, the cutting processing process, the bevel processing process, the hole-making process, the correction process, the polishing surface, the material splicing process, the pre-splicing process of a steel member, the assembly process, the processing process of a friction surface, the welding process of the steel structure and the anti-slip test of the friction surface of the steel member before leaving a factory, sandblasting, derusting and coating of a base coat are carried out in the factory, and the production of the steel structure is divided into the production processing of a welded H-shaped steel column, the production of a steel beam, the assembly and the welding of a support part, the production of a combined steel beam, the assembly and the welding of a girder box body and an inclined support below the girder box body, and the assembly and the welding of a pipe whip restraint key. The production process method can improve the drilling precision, utilize a numerical control planar drilling machine to complete the drilling on a gusset plate, determine a variety of processing processes and welding process parameters, and ensure the dimension of the member after the assembly and the smooth proceeding of field installation.
Owner:EAST STEEL STRUCTURE BRIDGE

Double-layer internal deslagging and anti-blocking drilling tool for soft and outburst coal seam drilling, and use method of drilling tool

The invention discloses a double-layer internal deslagging and anti-blocking drilling tool for soft and outburst coal seam drilling, and a use method of the drilling tool. The drilling tool comprises a rotary sealing water supply device or a rotary sealing air supply device, a double-layer internal deslagging and anti-blocking drilling rod and a central backflow drilling bit, wherein the rotary sealing water supply device or the rotary sealing air supply device is connected with the double-layer internal deslagging and anti-blocking drilling rod on a drilling machine, and the central backflow drilling bit is mounted at the front end of the double-layer internal deslagging and anti-blocking drilling rod. The use method of the drilling tool comprises the steps that a drilling system is started; an air flow or a water flow enters an outer layer channel of the double-layer internal deslagging and anti-blocking drilling rod and reaches the bottom of a drilling hole; the air flow or the water flow reverses out drilling cuttings formed by drilling bit coal breaking along an inner layer channel of the double-layer internal deslagging and anti-blocking drilling rod to enter a slag tapping dust collector connected with the tail part of the drilling rod; and deslagging and dust collection are accomplished. The drilling tool is novel in design; the deslagging is accomplished in a cavity of the drilling rod, so that influences of drilling hole shrinkage and hole wall buckling failure on a drilling hole deslagging space can be avoided effectively; the deslagging is accomplished in the inner layer channel of the drilling rod, so that the dust collection is more effective; and drilling, anti-sloughing and dust collection integrated operation is realized.
Owner:HENAN POLYTECHNIC UNIV

Test device of model for manufacturing rock masses containing interlayers and test method thereof

The invention discloses a test device of a model for manufacturing rock masses containing interlayers and a test method thereof. The test device of the model for manufacturing the rock masses containing interlayers comprises a semicircular angle device, an upper baffle, a lower baffle, a left side plate, a right side plate, a circular turntable, a core-drilling machine drill bit, a flat plate, a flat plate angle control rod, a fixed screw rod, a base plate, an interlayer model test piece, a U-shaped plate and a guide slot. The test method comprises the following test steps: arranging the rock masses according to an outline central line and fixing the rock masses; manufacturing interlayer materials and casting the model, fastening the test piece, drilling the core, replacing the core-drilling machine drill bit, changing the position of the test piece to drill repeatedly and cutting to obtain the test pieces with different height-diameter ratios or obtain the test pieces with different interlayer inclination angles; then carrying out mechanical test. The test device is simple in structure and suitable for manufacturing the test pieces with different interlayer thicknesses, inclination angles and height-diameter ratios; according to a core-drilling and cutting machining device, by making full use of the existing device, the influence on the mechanical properties of the test pieces caused by different conditions can be analyzed, coring of irregular rock samples taken in the site can be carried out directly, so that the test efficiency is improved and the test time is shortened.
Owner:CENT SOUTH UNIV

Gas drainage method combining surface and underground fracturing and permeability improvement

The invention relates to a gas drainage method combining surface and underground fracturing and permeability improvement, and the method comprises the following steps: building underground large-diameter directional long boreholes in a coal reservoir or the top and bottom plates thereof under a coal mine by using a drilling machine; then building pressure relief holes in a coal bed having an appropriate distance with the large-diameter directional long boreholes; building vertical wells communicated with an underground large-diameter directional long borehole filed or nearby roadways thereof from the ground to the underground; firmly connecting large ground fracturing equipment, a ground vertical well shaft and the underground large-diameter directional long boreholes by using high pressure pipelines; carrying out fracturing on each underground large-diameter directional long borehole by using the large ground fracturing equipment to form a three-dimensional fracture network; discharging water in the underground large-diameter directional long boreholes and then carrying out continuous pressure extraction on fracturing holes and the pressure relief holes; and quickly extracting out the coal bed gas through negative pressure by using the three-dimensional fracture network. According to the invention, the coal bed gas can be extracted out quickly with high efficiency by using the three-dimensional fracture network and negative pressure, thereby providing a technical guarantee for safe and high-efficiency production of mines; and the method has the advantage of wide application prospect.
Owner:HENAN COAL CHEM IND GROUP INST

Gas drainage system and method for hyposmosis soft coal seams

InactiveCN102116168AMake up for the inconvenience of reconstruction of collapsed holesSimple structureDrilling rodsFluid removalEngineeringAir compressor
The invention discloses a gas drainage system for hyposmosis soft coal seams, which comprises a power device mechanism, a drilling-pressing-pumping integrated mechanism, and a metering mechanism. The power device mechanism comprises an air compressor and an air drilling machine; the drilling-pressing-pumping integrated mechanism comprises a rotary blowout preventer, a boosting pipeline, a drill pipe, a multiple-completion packer, an inner drill pipe connector, a power motor, an electromotor, and an auto-reducing and reaming triple-wing drill bit. The air compressor is sealed and communicated with the inner drill pipe through a high pressure hose; moreover, a control valve, a flowmeter and a pressure meter are arranged on the high pressure hose. The invention also discloses a method using the system to pump gas. The system not only can be used for drilling to make up the difficulty of inconvenient transformation of the gravitation of the soft coal seams, but also can timely implement pressing and cave forming on coal bodies to pump gas after drilling. The method integrates drilling with pressing and cave forming, and improves the ventilation property of the coal seams through cave forming. Integration of drilling, pressing and pumping effectively prevents the problem that transformation of a reservoir can not be continued due to collapse of coal holes to a certain extent.
Owner:HENAN POLYTECHNIC UNIV
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