472 results about "Core drill" patented technology

The invention discloses a drill rod for construction of an integrated stirring forming type cemented soil stiff anchor rod, the drill rod comprises a drill bit part and a hollow drill rod, the drill bit part comprises a shell, an anchor disc fixed in the shell and a spiral blade welded on the shell, and the hollow drill rod is inserted into the shell; the sheath steel pipe is inserted into the hollow drill rod and fixed to the shell, the grouting pipe is inserted into the sheath steel pipe, one end of the rod body is fixed to the anchor disc, and the other end of the rod body extends out of the sheath steel pipe. A first grouting hole is formed in the shell, and a second grouting hole is formed in the sheath steel pipe. The invention further discloses a construction method of the integrated stirring forming type cemented soil stiff anchor rod. When the method is used, the processes of hole forming, anchoring, grouting and the like are integrally formed, the process is simple, the speed is high, and the quality is easy to control; the formed cement-soil pile body is uniform in internal structure and reliable in strength; tension of the anchor rod is uniformly distributed, so that stress concentration can be reduced; and the formed cement soil pile body is high in end strength and good in safety.

The invention relates to the technical field of desertification control, in particular to a desertification control soil sampling detection device which comprises a machine base, machine frames, guide rods, a lifting plate and the like, the top of the machine base is connected with the two machine frames, the machine frames are connected with the guide rods, the guide rods are connected with the machine base, and the two guide rods are jointly connected with the lifting plate in a sliding mode. The rock core drill bit can be driven by the lead screw motor to move downwards, the rock core drill bit drills into soil, the soil enters the drill pipe, the soil is sampled, the drill pipe can be closed by elastic cloth, the through hole can be blocked by a blocking block, leakage of the soil in the drill pipe is avoided, and the soil multi-parameter sensor can be driven by the electric guide rail to move backwards. The probe of the soil multi-parameter sensor is inserted into the drill pipe to detect soil, detection can be carried out without pouring out the soil, detection is carried out automatically, operation is simpler, manpower and time can be saved, and soil of different depths can be detected conveniently.

The invention provides an indoor crustal stress test device and method based on optical strain measurement, the test device comprises a stress simulation device, the stress simulation device can perform real three-dimensional crustal stress environment simulation on a test rock mass as far as possible; the drilling releasing device is provided with a hollow drill bit used for drilling the optical strain measurer installed in the test rock mass, and the drilling hole and the hollow drill bit are coaxially arranged. Thus, according to the method, pressure is applied to the test rock mass from multiple directions through the multiple hydraulic loading columns, the real three-dimensional crustal stress environment can be more accurately simulated, speckle image changes in the speckle coating can be continuously recorded in real time through the optical strain measurer, and hole wall strain data are obtained; and converting the strain data into stress by applying an elastic theoretical formula, and accurately calculating the stress state of the experimental rock mass.

According to the basic grassland ecological data monitoring and sampling system disclosed by the invention, in the sampling operation, cutting rings can be automatically taken out and stored through rotation of a turntable, rotation of a butt-clamping mechanical claw and lifting of a butt-clamping sliding block, so that an unmanned vehicle can carry a plurality of cutting rings for sampling work, the sampling work efficiency is improved, and the sampling time is shortened. The cutting ring inserting work can be automatically completed through cooperation of the butt-clamping mechanical claw and the pressing head, soil around the cutting ring can be automatically excavated through the hollow drill, the labor intensity of an operator is relieved, the automation level is improved, the butt-clamping mechanical claw can enter an annular groove excavated by the hollow drill, the cutting ring is taken out by clamping the side face of the cutting ring, and the cutting ring inserting efficiency is improved. The cutting ring does not need to be additionally transformed, the universality of the cutting ring is improved, and the sheath is pressed outside the cutting ring before the soil around the cutting ring is dug out, so that the situation that the accuracy of an analysis result is reduced due to soil disturbance in the cutting ring caused by displacement of the cutting ring is avoided.

The invention belongs to the technical field of cutting beds, and particularly relates to an integral opening and closing structure of a direct-drive type punching drill, which comprises a rack, the end part of an air cylinder fixing seat is rotatably connected to the rack, a locking mechanism is arranged between the air cylinder fixing seat and the rack, an air cylinder and a guide sleeve are arranged above the air cylinder fixing seat, and a punching drill assembly comprises a motor fixing plate, a hollow motor is arranged on the motor fixing plate, a hollow drill is connected to the lower end of a hollow rotating shaft of the hollow motor, the ejector rod penetrates through the hollow rotating shaft and extends into the hollow drill, and during normal punching work, the locking mechanism locks the air cylinder fixing base and the rack, and the air cylinder fixing base is fixed to the rack; when replacement and maintenance are needed, the locking mechanism is unlocked, and the punching drill assembly can be opened towards the side away from the rack. When replacement and maintenance are needed, enough operation space is reserved between the punching drill assembly and the cutterhead, an operator can operate flexibly, and the operator can replace a cut-off knife and a drill bit conveniently; and the structure is compact, interference with a cutterhead located below the rack is avoided, and the device is suitable for the automatic cutting bed.

A description is given of an extraction device (1) for a core drill, including a housing (4) which has at least one cavity (7), a cover (2) and a wall (3) connected to the cover (2) around the periphery. An extraction nozzle (5) connected to the housing (4) is provided, designed for attaching the extraction device (1) to a suction device. The wall (3) has at least one inlet opening (44, 45), by way of which the cavity (7) is connected to the surroundings (U). The wall (3) has a first substantially planar wall region (10) and a second substantially planar wall region (11), wherein a surface (14) of the first wall region (10) that is facing away from the cavity (7) forms an obtuse angle (16) with a surface (15) of the second wall region (11) that is facing away from the cavity (7).

The invention relates to the field of tunnel engineering, and discloses a vertical drilling and grouting all-in-one machine for micro-disturbance grouting in a subway tunnel hole and a technological method.The vertical drilling and grouting all-in-one machine comprises a base used for supporting the whole device, a sliding rail is installed on the inner wall of the base, and a supporting frame is installed at the end, close to the center line of the base, of the sliding rail; a drilling and injecting mechanism is arranged on the outer wall of the sliding rail, and a sealing assembly is arranged on the upper surface of the base. The drilling and injecting mechanism comprises a sliding frame, the sliding frame is slidably connected to the outer wall of the sliding rail, the front surface of the sliding frame is fixedly connected with a supporting plate, the lower surface of the supporting plate is rotatably connected with a drilling rod, and the lower end of the drilling rod is in threaded connection with a connector. According to the drilling and grouting device, the drilling and grouting mechanism is arranged, the hollow drill rod is adopted for drilling, during grouting operation, drilling operation can be achieved through rotation of the drill rod, then the drill rod can be directly connected with grouting equipment, and therefore grouting can be achieved through the drill rod directly.

The present invention discloses a fully hydraulic power head drill suitable for drilling in loose and broken strata. It includes a chassis assembly, a centering gripper, a pipe ramming machine, a power head, a drill rig guide rail, a fixed pulley block, a support oil cylinder and a feed oil cylinder; the power head is fixedly connected to the feed oil cylinder and is slidably connected to the drill rig guide rail; the drill rig guide rail is installed on the chassis assembly; the fixed pulley block is fixed at the top of the drill rig guide rail to change the direction of the wire rope and form a traction mechanism in cooperation with the winch on the drill rig, and when necessary, pull the power head and the drill pipe string to the starting position; the support oil cylinder and the feed oil cylinder are hinged and fixed on the chassis assembly. The present invention has the advantages of realizing the rotary feed function of an ordinary core drill while realizing impact rotary compound drilling and improving the working efficiency of pipe ramming drilling.

The invention relates to the field of metal punching, and discloses a punching device for machining a chemical container supporting skirt cylinder, the punching device comprises a protective shell and a supporting skirt cylinder original part, an automatic position adjusting punching structure is arranged in the protective shell, the automatic position adjusting punching structure comprises a pushing assembly and an overturning assembly, the pushing assembly punches the supporting skirt cylinder original part, and the overturning assembly overturns the supporting skirt cylinder original part. When the pushing assembly moves downwards, the overturning assembly overturns and fixedly supports the skirt tube original part, the pushing assembly comprises a transmission motor, the transmission motor drives a transmission sliding block to move up and down through transmission and drives a first bevel gear and a second bevel gear to conduct transmission at the same time, the transmission motor can control forward rotation and reverse rotation, and the overturning assembly comprises an I-shaped threaded sliding block. A ratchet wheel is installed outside the I-shaped threaded sliding block, and the I-shaped threaded sliding block and the ratchet wheel are in transmission through a ratchet block. The hollow drill has the beneficial effects that the hollow drill is moved to the top end of the cylinder through transmission, meanwhile, the original supporting skirt cylinder is fixed, and the angle of the supporting skirt cylinder can be adjusted to drill different holes.

The invention provides a method for determining anisotropic strength of weakly cemented soft rock, and relates to the field of rock mass mechanics. The method specifically comprises the following steps: S1, preparing a weakly cemented soft rock hollow cylinder sample by adopting a coaxial double-core drill bit; s2, carrying out weak cemented soft rock directional shear tests in different large principal stress action directions by using a hollow cylinder torsional shear apparatus; s3, according to a directional shear test result, simplifying a damage point strength envelope line into an elliptical model; s4, establishing an anisotropic elliptical failure criterion implicit function mathematical model; and S5, determining parameters of the anisotropy model of the weakly cemented soft rock. Compared with the prior art, the method has the advantages that the defect that the isotropic strength criterion does not consider the main stress direction effect is overcome, and the reliability and accuracy of the anisotropic strength of the soft rock are improved.

The invention relates to the technical field of geological sample preparation, in particular to special coring equipment for a hard broken stratum in geothermal drilling, which comprises a counterweight support and further comprises a rotary sample drilling structure connected with the counterweight support, the rotary sample drilling structure comprises a rotary lifting driving part, a limiting rotary driving part is mounted on the rotary lifting driving part, and the limiting rotary driving part is connected with the counterweight support. The limiting rotation driving part is connected with a pile casing, the outer wall of the pile casing is fixedly connected with four sets of buckling frames, the lower end of the pile casing is fixedly provided with a core drill bit, and four sets of pneumatic glue filling parts are installed in the pile casing; and the power-assisted separation part is connected with the rotary lifting driving part. Through cooperation of the rotary sample drilling structure and the power-assisted separation part, while the rock core sample is drilled, the rock core sample in a broken and loose state is fixed in a manner of filling transparent epoxy resin glue, so that complete collapse and mixing of the interior of the rock core sample in the taking-out and transporting process are avoided; subsequent observation and analysis of the rock core sample are facilitated, and the difficulty of subsequent analysis of the rock core sample is reduced.

The invention discloses a grouting reinforcement roadway surrounding rock water-cooling coring and drilling device, which relates to the technical field of coring and drilling, and comprises an outer pipe assembly, an inner pipe assembly, a drill bit assembly and a fishing assembly, a cooling cavity is defined between the outer coring cylinder and the inner coring cylinder, the cooling cavity is connected with a water supply system, and the water supply system supplies cooling liquid into the cooling cavity; the drill bit assembly comprises a drill bit body fixed to the bottom of the outer coring cylinder, and drill edges are evenly arranged on the outer side of the bottom of the drill bit body. A drill cavity communicated with the cooling cavity is formed in the drill bit body, and a coring hole is formed in the middle of the bottom of the drill bit body. And cooling holes are formed in the bottom of the drill cavity around the circumferential direction of the coring hole. A cooling hole and a coring hole are separated on the coring drill bit, so that the spraying area of cooling liquid is reduced, the flow speed of the cooling liquid is reduced, the cooling liquid is fully utilized, and the energy consumption is reduced; meanwhile, the impact of the cooling liquid on the rock core is avoided, the problem that the rock core is scattered is avoided, and a large amount of cooling liquid is prevented from entering the inner coring barrel to damage the rock core.

The application discloses a coal rock anti-burst method of large-range seam forming by remote controllable shock wave and hydraulic fracturing, and comprises the following steps: step one, detecting and recording the stress concentration degree of target coal seam or rock stratum; step two, drilling; step three, withdrawing the hollow drill rod, arranging the discharge electrode connected with the cable at the front end of the hollow drill rod, and sending the discharge electrode into the drill hole through the hollow drill rod; step four, sealing the hole by using a hole sealer and performing hydraulic fracturing; steps five to seven, completing multiple repeated electric pulse discharge operations; and step eight, testing the pressure relief effect of the coal seam or rock stratum. The method uses the drilling cuttings method, high-pressure hydraulic fracturing and high-voltage electric pulse to perform large-range cracking and pressure relief on the coal rock stratum, changes the stress state of the coal rock stratum, and reduces the stress concentration degree, so that the anti-burst purpose is achieved. The method is mainly applied to deep coal rock body tunneling roadways and coal mining working faces containing coal rock body impact tendency.

The invention is suitable for the technical field of mold machining, and provides clamping ring type mold machining equipment and a machining technology thereof.The clamping ring type mold machining equipment comprises a workbench and a wire winding assembly installed on one side of the top of the workbench, the wire winding assembly is used for winding and releasing an electrode wire, and a bearing assembly is installed on the other side of the top of the workbench; according to the device, the problem that electrode wire perforation is bent or cannot be smoothly perforated due to the influence of through hole diameter deviation and impurities is solved, the device is provided with an electric rotary table and a hollow drill bit, when the electric rotary table drives a rotary pipe to rotate, the hollow drill bit synchronously rotates, and the electrode wire can be wound on the hollow drill bit. The second electric sliding rail drives the pipe body to move downwards to complete drilling, after drilling, the second gear and the second rack are matched to promote the pipe body and the auxiliary chuck to move downwards integrally for wire feeding, independent manual tapping is not needed, wire cutting operation of the center hole or groove can be achieved, and the working efficiency is improved.

The invention relates to an ultrasonic vibration anti-core-blocking drilling tool and a drilling method thereof, and belongs to the technical field of drilling engineering.The drilling tool is composed of an outer pipe system, an inner pipe system and an ultrasonic vibration system; ultrasonic vibration is applied to an inner pipe system, core blocking, bridging and adhesion in core drilling in complex stratums such as fracture development, broken stratums and water-sensitive stratums are effectively prevented, moving resistance of the core in the inner wall is greatly reduced, core blocking is prevented, the core recovery rate and the drilling speed are increased, and the core drilling efficiency is improved. The method can adapt to various complex stratums by adjusting ultrasonic vibration parameters, and is wide in stratum adaptability, high in universality and easy and convenient to operate.

The invention discloses an automatic geological rock coring device, which relates to the technical field of geological rock sampling and comprises a coring base part, a plurality of self-adaptive core clamping devices, a telescopic coring drill bit device and an automatic controller based on a chip. According to the automatic coring device for the geological rock, multi-degree-of-freedom movement of a coring tool in space is achieved through the structure of the multiple self-adaptive core clamping devices and the telescopic coring drill bit device. The coring device can flexibly adjust the coring position, meets coring requirements under different stratum conditions, and particularly has remarkable advantages in complex geological structure areas. The self-adaptive core clamping device can carry out self-adaptive clamping according to the size and shape of the rock core, mechanical damage to the rock core is avoided, the integrity of the rock core is improved, and a more reliable sample is provided for subsequent rock physical property testing and geological analysis. Due to the design of the three-stage insertion type clamping jaw part, self-adaptive adjustment can be carried out according to the actual size and shape of a rock core.

The invention belongs to the technical field of dynamic compaction foundations, discloses a dynamic compaction foundation quality detection sampling method, and aims to solve the problem that a core sample is easily damaged when the core sample of the dynamic compaction foundation is obtained by adopting an existing coring bit. The method comprises the following steps: (1) cutting and drilling an outer-layer soil body by using outer-layer cutting teeth on an outer cutting cylinder; (2) inner-layer cutting teeth on an inner cutting cylinder are used for cutting and drilling an inner-layer soil body; (3) synchronously driving a protective cylinder for coating the core sample to move downwards; (4) when the lower end surface of the protective cylinder moves to a designed depth, cutting a soil body below the core sample by using a cutting blade; and (5) taking out the protective cylinder from the inner cutting cylinder, and opening the protective cylinder to obtain a core sample of the dynamic compaction foundation. According to the invention, disturbance to the dynamic compaction foundation core sample can be reduced, and the core sample forming quality is improved.

The utility model discloses a drill core auxiliary device for preventing road surface pollution, which belongs to the technical field of drill core auxiliary for preventing road surface pollution and comprises a fixing frame, a moving component is arranged at the top of the fixing frame, a protective cylinder body is connected to the side surface of the moving component, a mounting cylinder is connected to the side surface of the protective cylinder body, and an adjusting component is connected to the side surface of the mounting cylinder. By arranging the moving assembly, the device can move through pulleys, the device can be moved and carried more easily and conveniently, a rotating shaft is rotated to drive two second bevel gears to rotate, two screw rods can rotate synchronously under meshing transmission between the second bevel gears and the first bevel gears, and the screw rods can rotate synchronously under meshing connection between the screw rods and sliding blocks. The sliding block can drive the protection barrel body to move downwards and fall to the ground; by arranging the adjusting assembly, the position of the waste liquid collecting disc can be rapidly adjusted under the sliding connection between the telescopic column and the mounting cylinder, waste liquid is prevented from crossing the waste liquid collecting disc, and therefore the using effect is better.

The utility model discloses a large bolt broken wire taking device, which belongs to the technical field of bolt broken wire taking devices and comprises a clamping mould, and two fixing components are arranged on one side of the top of the clamping mould. According to the clamping fixture for the high-pressure pump body flange, the hand cranking device is manually operated to drive the rotating shaft, the gear, the annular gear and the protruding block to move, the rolling wheel drives the transverse plate and the fixing abutting block to move in the direction of the bolt, the outer surface of the bolt is fixed, the clamping fixture is rapidly fixed to the high-pressure pump body flange, and therefore the portability of the clamping fixture in the using process is improved; wherein the size of the hollow drill can be selected and adjusted according to actual needs, connection of the large hollow drill and the magnetic drill is achieved through the adapter, the use range of the device is expanded, and the device avoids the risk of damage to the device body due to alignment deviation during drilling in a centering and alignment mode.

A method for operating a power tool, wherein the power tool is initially operated with a first combination of operating parameters such that a first working progress is obtained. During operation of the power tool with the first combination of operating parameters, the first working progress can be determined and compared with a second working progress that is obtained when the power tool is operated with a second combination of operating parameters. Depending on the result of the comparison, the power tool can continue to be operated with the second combination of operating parameters or the power tool can return to operation with the first combination of operating parameters. This comparison of the working progresses can be repeated until a maximum, i.e. optimal working progress is reached or found. A power tool, wherein the power tool is preferably in the form of a drill, preferably a core drill.

The invention discloses a preparation and experiment method of a filled fractured rock sample reflecting moisture migration water-containing conditions, and relates to the technical field of rock mass mechanics experiments, and the preparation and experiment method comprises the following steps: processing a sandstone block material into a cuboid larger than a standard cylindrical sample; the rectangular plate is placed on a drilling machine workbench, the drilling position is marked according to the needed sample position, and a rock core drilling machine is used for preparing a sample; high-pressure water jet equipment is used for cutting a penetrating crack in the middle of the sample, the crack characteristics comprise the inclination angle beta and the length 2a, the crack widths are the same, and control groups of different rock samples are formed; cutting and grinding by using a stone grinding machine to prepare standard cylinder and disc samples; the method comprises the following steps: air-drying and grinding clay taken back from a sampling site, preparing a clay filler according to the natural moisture content of the clay on site, and preparing a clay filling crack sample; the method can provide a basis for understanding a water-rock interaction mechanism and revealing a water-induced related rock mass engineering disaster mechanism.

The utility model relates to the technical field of mining equipment, in particular to a multifunctional mining drilling rig which comprises two symmetrically-arranged supporting legs and a portal frame, a movable plate capable of moving up and down is arranged below the portal frame, and two hydraulic cylinders are symmetrically and fixedly connected to the bottom of the portal frame. Piston rods of the two hydraulic cylinders are fixedly connected with the top of the movable plate, the portal frame is rotationally mounted between the two supporting legs, a drill rod is rotationally mounted at the bottom of the movable plate, a drill bit capable of moving up and down is coaxially mounted at the bottom of the drill rod, the drill rod is hollow, and a plurality of sampling assemblies are mounted in the drill rod and located above the drill bit. Stable support is formed through the symmetrically-arranged supporting legs and the portal frame, the movable plate below the portal frame is driven by the hydraulic cylinder to move up and down, and accurate control over a drill rod and a drill bit is achieved; the drill rod is hollow, the sampling assembly is integrated in the drill rod, sampling can be carried out in the drilling process, and the working efficiency is improved.

1. Name of the product under this design: Crawler-type fully hydraulic core drill (ET150). 2. Application of this design product: Applicable to engineering surveys such as railways, highways, bridges, tunnels, subways, urban underground spaces, and civil engineering. It can meet the needs of geotechnical engineering such as multi-angle drilling, sampling, standard penetration, dynamic exploration and in-situ testing. 3. The key point of the design of this product lies in its shape. 4. The picture or photo that best illustrates the design points: Stereoscopic drawing 1.

The utility model discloses a low-temperature while-drilling coal seam gas content fixed-point sampling device which comprises a coring pipe, the coring pipe is a cylindrical cavity, the cylindrical cavity is a coring pipe inner cavity, a coring pipe opening is formed in an opening in one end of the coring pipe, the coring pipe is in threaded connection with a coring drill bit through the coring pipe opening, and a connector is arranged at the end, away from the coring drill bit, of the coring pipe. A powerful return spring is installed at the end, close to the connector, of an inner cavity of the coring pipe and connected with a round blocking piece, and a refrigerant adding opening is formed in the side, close to the connector, in the inner cavity of the coring pipe. According to the low-temperature while-drilling coal seam gas content fixed-point sampling device, heat generated by friction between the pipe wall of the coring pipe and the coal wall and heat generated by drill bit cuttings are prevented from being transmitted to the coring pipe, the coal sample deterioration and the gas loss amount are reduced, the purity of the obtained coal sample is high, and the coal seam gas content measurement accuracy is high.

The utility model relates to a novel valve seat which comprises a valve body and a connector, the valve body is designed to be cylindrical, a flow channel used for installing a valve element is arranged in the valve body, the first end of the valve body is connected with the connector, the front end of the valve element is movably inserted into an inner cavity of the connector in a penetrating mode, a spring is installed in the flow channel, and the first end of the valve body is connected with the connector. One end of the spring is screwed into a spring barrel at the rear end of the valve element, a step table is arranged in the flow channel, the spring barrel and the step table are matched and limited, the other end of the spring is connected with the second end of the valve body, and the second end and the side wall of the valve body are provided with a main discharge hole and a secondary discharge hole respectively, a protrusion is arranged on the outer wall of the rear end of the valve element, and a limiting groove is formed in the position, corresponding to the protrusion, of the inner wall of the flow channel. While mortar blockage is prevented, the protrusions on the outer wall of the valve element are movably clamped in the limiting grooves, the situation that the valve element rotates and swings when being scoured by mud in an unstable flocculating flow state, and consequently the spring is screwed is avoided, and it is guaranteed that the service life of the spring reaches the standard.

A core drill includes: a motor having a rotor, which is rotatable relative to a stator about a rotational axis extending in the front-rear direction; a speed-reducing mechanism, which is disposed more forward than the stator; an output shaft, at least a portion of which is disposed more forward than the speed-reducing mechanism and which, in the state in which a core bit is mounted thereon, is rotated by the rotational force of the rotor transmitted via the speed-reducing mechanism; a battery-mounting part, on which a battery pack is mounted; a motor-housing part, which houses the motor; a grip part, at least a portion of which is disposed along the extension of the rotational axis more rearward than the motor-housing part; and a controller, which controls the motor. In the front-rear direction, at least a portion of the controller is disposed between the motor and the grip part.

The present application belongs to the technical field of drilling coring device in the technology of oil geological exploration and well drilling, and discloses a borehole wall coring drilling tool suitable for high permeability formation of open hole, which comprises a drill bit, a plurality of chip removal holes are arranged on the side wall of the drill bit at intervals; a drill rod, one end of the drill rod is connected with the drill bit, and a plurality of spiral hollowed-out mud guide grooves are arranged on the rod wall of the drill rod at intervals and close to the drill bit. The spiral hollowed-out mud guide grooves are arranged on the rod wall of the drill rod at intervals and close to the drill bit, so that the scraping function is added to the inner and outer walls of the drill rod, the mud cake on the borehole wall can be shredded, the closed space is destroyed, the mud cake is thrown out of the drill bit by using the rotation characteristics of the drill bit, the mud slurry washes the rock debris and the drill bit, and finally the rock debris is discharged from the chip removal hole, the drilling of the rock core is reduced in resistance, the probability of drill pipe sticking is reduced, and the success rate of coring is improved.

The invention discloses a mineral hardness detection device and a detection method thereof, a coal mining machine and a mineral classification method, which can make a mineral sample into a detection sample, and obtain a mineral firmness coefficient by detecting the ultimate pressure of the detection sample, thereby realizing accurate and automatic detection of mineral hardness. The mineral hardness detection device comprises a moving trolley, a sample preparation assembly, a detection assembly and a control and calculation assembly. The sample preparation assembly comprises a hollow drill (19), a drilling machine driver (16), a lifting mechanism and a fixing mechanism. The detection assembly is used for extruding the detection sample to detect the pressure on the detection sample and transmitting the pressure on the detection sample to the control and calculation assembly. And the control and calculation assembly is electrically connected with the detection assembly and is used for obtaining the ultimate pressure of the detection sample according to the pressure of the detection sample, calculating the uniaxial compressive strength of the detection sample and converting the uniaxial compressive strength into a mineral firmness coefficient for display.

The utility model discloses metal mine geology drilling equipment, which relates to the field of drilling equipment and comprises driving equipment, the driving equipment is mounted on a driving support through a moving frame, a platform is fixedly mounted on the driving support, a mounting part is fixedly mounted at the upper end of the platform, and the mounting part consists of a connecting ring and a mounting plate. The mounting plate is fixedly mounted on the outer wall of the connecting ring, a cleaning part is mounted on the platform, the cleaning part is composed of a mounting round pipe, a limiting insertion block, an anti-falling ring and bristles, the limiting insertion block is fixedly mounted on the outer wall of the mounting round pipe, and the mounting round pipe is fixedly sleeved with the anti-falling ring. The outer wall of the coring drill rod can be automatically cleaned, so that the cleaning burden of workers can be reduced, and the use efficiency of drilling equipment can be improved; and by arranging the mounting piece and the connecting piece, the cleaning piece can be conveniently disassembled and assembled, so that the cleaning piece can be conveniently replaced.

The invention provides a pavement coring drill device for supervision, which relates to the technical field of drilling and coring, and comprises a sampling drill cylinder, a driving joint, a positioning loop, a limiting vertical cylinder, a movable push plate, a receiving sample cylinder, a U-shaped pull rod and a screw rod, the top of the sampling drill barrel is connected with a driving joint, and the top of the driving joint is connected with a handheld drilling machine; and a positioning loop is sleeved outside the driving joint and is in contact with the top of the sampling drill barrel. The sampling drill barrel is limited and fixed through the rotating wheel in the limiting vertical barrel, so that the sampling drill barrel can drill into a pavement more quickly, and a pavement sample core located in the sampling drill barrel is pushed into the receiving sample barrel by utilizing the movable push plate, so that the integrity of the obtained pavement sample core is effectively guaranteed. The problems that an existing coring drill bit is incomplete in positioning mechanism, the drill bit is prone to wandering at the early stage of coring, the working efficiency is affected, a road surface sample core needs to be taken out of the drill bit in a tool hammer knocking mode, and the road surface coring integrity is prone to being damaged are solved.