29results about How to "Improve hole quality" patented technology

The invention provides a pumped storage power station inclined shaft TBM and an expanding excavation mechanical construction method. The TBM comprises a shield body, a conical expanding excavation cutterhead is arranged at the front end of the shield body, a main drive is arranged in the shield body, the conical expanding excavation cutterhead is connected with the main drive through a main bearing, and a plurality of front supports and rear supports are arranged on the peripheral sides of the front end and the rear end of the shield body respectively; the shield body between the front support and the rear support is provided with a thrust oil cylinder and a driving support shoe, and the pumped storage power station inclined shaft TBM creeps and advances under the cooperation of the front support, the rear support, the thrust oil cylinder and the driving support shoe. Besides, by means of the mechanical construction method of the pilot shaft and TBM expanding excavation, the problems that construction guidance and the hole forming body type are not easy to control, the excavated hole is poor in flatness, poor in safety and the like existing in excavation of a drilling and blasting method can be solved, excavation of a traditional drilling and blasting method is eliminated, the hole forming quality is improved, disturbance to surrounding rock is reduced, and potential safety hazards are reduced; safe and efficient excavation of the water diversion inclined shaft in the pumped storage power station is guaranteed, and the construction period of key lines is shortened.

The embodiment of the invention provides a method for optimizing the roughness of the side wall of a glass through hole, which is used for solving the technical problem of high roughness of the side wall of the glass through hole manufactured by the existing glass through hole technology. According to the method, the femtosecond laser is adopted, and the material structure of the prefabricated through hole area is uniformly and deeply changed in a thermal cycle mode, so that the chemical etching sensitivity of the prefabricated through hole area is remarkably improved, and the prefabricated through hole area is more easily and uniformly removed; by optimizing the components and proportion of the etching liquid, the etching liquid uniformly covers and acts on the surface of the material in the modified area of the prefabricated through hole in the subsequent chemical etching stage, the modified material is corroded at a uniform speed, and corrosion residues are removed in time. Through etching liquid temperature control and ultrasonic power control, the mixing and reaction uniformity of the etching liquid is enhanced, and uniform and refined etching of the prefabricated through hole modification area is realized. And furthermore, the uniformity of glass through hole corrosion and the material removal precision are greatly improved, and the roughness of the side wall is obviously reduced from 1.257 microns to 100 nanometers or below.

The invention discloses a hard rock drilling construction system and a construction method for interlocking piles in a height-restricted area foundation pit, and belongs to the technical field of cast-in-place pile construction. The construction system comprises a full-casing rotary drilling rig and an improved drilling rig for construction in a height-restricted area and a hard rock layer. The hard rock layer comprises an upper soil layer and a lower rock layer. The full-casing rotary drilling rig drives a casing assembly to form a hole in the upper soil layer, and the improved drilling rig drives a down-the-hole hammer to form a hole in the lower rock layer. The height of the improved drilling rig is lower than that of the height-restricted area, and the down-the-hole hammer is connected through a drill rod assembly. The drill rod assembly consists of a plurality of short drill rods connected end to end. The top end of any short drill rod is disconnected and a new short drill rod is added to lengthen the length of the drill rod assembly. The problem that the rotary drilling machine used in the prior art has low efficiency and the rotary drilling drill bit is extremely easy to be damaged is solved.

The invention discloses an underground coal mine large-diameter hole section chambering drilling tool assembly and a hole forming method, the underground coal mine large-diameter hole section chambering drilling tool assembly comprises a chambering drill bit, a plurality of drill rods and a water feeder which are connected in sequence, a centralizer is arranged between part of adjacent drill rods, the chambering drill bit comprises a chambering drill bit main body and an auxiliary drill bit body which are split, and the auxiliary drill bit body can move and displace in the axial direction of a sliding shaft. In the drill retreating process, the assembly is in a piston shape, sediment in a drill hole can be collected together and discharged out of the hole in a mechanical push-out mode, favorable conditions are created for casing pipe lowering of hole sections with different postures, in addition, radial ribs of the reamer bit body and the auxiliary bit body correspond to flow guide grooves in a staggered mode, and the overall outer contour is a cylindrical face. In the rotary drilling and axial push-and-pull process, the drill bit body edge wings cannot generate obvious destructive effect on the lower side hole wall stratum, casing lowering is facilitated, the casing lowering success rate can reach 95% or above, and the technical problems that an existing large-diameter hole section multi-stage reaming drilling tool is complex in combination, large in drilling tool replacement workload and low in efficiency are solved.

The utility model discloses perforating equipment for civil defense door accessories, which comprises a base, a supporting plate is arranged on the rear side of the top of the base, an air cylinder is mounted on the supporting plate, the output end of the air cylinder penetrates through the top wall of the supporting plate and is connected with a supporting plate, a perforating assembly is mounted on the supporting plate, and the perforating assembly is connected with the air cylinder. A first sliding rail is arranged on the base, a moving plate is connected to the first sliding rail in a sliding mode, a second sliding rail is arranged at the top of the moving plate, the sliding direction of the second sliding rail is perpendicular to the sliding direction of the first sliding rail, a placing table is arranged on the second sliding rail, and an electric telescopic rod is installed at the side end of the top of the moving plate. And the output end of the electric telescopic rod is connected to the placing table. The utility model belongs to the technical field of civil air defense door accessory trepanning, and particularly relates to trepanning equipment for civil air defense door accessories.

The present application relates to complex stratum pile foundation construction technology field, disclose a kind of riprapping stratum full casing rotary and rotary drilling combined hole construction method, comprising the following steps: leveling construction ground;Pile position lofting is carried out, and guiding positioning structure is set;First section casing with grouting passage is installed on full casing rotary drilling machine, grouting passage is used for grouting;Through full casing rotary drilling machine clamping casing, drive casing press into riprapping stratum, while rotary drilling carries out soil taking;Slurry is injected by grouting passage, and riprapping body outside casing is consolidated to form annular consolidated body;The elevation difference between the soil taking surface of rotary drilling and the bottom end of casing is controlled to be within the preset range, and the following protection wall is formed;Lengthen next section casing, and connect adjacent grouting passage;Until casing penetrates riprapping layer and main sand layer and enters lower stable layer.The present application can solve the problems of difficult riprapping stratum hole forming, easy hole collapse, easy grouting leakage and easy drill sticking.

The utility model relates to the technical field of building construction, and provides a high-pressure jet grouting device for building construction, which comprises a drill rod, a drill bit and a jet grouting device, the jet grouting device comprises a first mixing bin, a second mixing bin, a drill rod sleeve and the like, and the lower end of the drill rod is fixedly connected with the drill bit and a drill rod bottom supporting plate. The first mixing bin is formed by sealing two ends of a first outer sleeve and two ends of a first inner sleeve through a first upper sealing plate and a first lower sealing plate, the first outer sleeve is provided with a slurry spraying hole, the first upper sealing plate is provided with a cement slurry pipe connector and an additive pipe connector, the second mixing bin is formed by sealing two ends of a second outer sleeve and two ends of a second inner sleeve through a second upper sealing plate and a second lower sealing plate, and the second outer sleeve is provided with a second spraying hole. The first mixing bin, the second mixing bin and the drill rod sleeve sequentially penetrate through the drill rod and are fixedly connected in series, the water spraying pipe and the air spraying pipe penetrate through the drill rod sleeve, and the lower ends of the water spraying pipe and the air spraying pipe are connected with the water slurry pipe connector, the air spraying pipe connector, the water spraying pipe connector and the air spraying pipe connector respectively. During use, the upper end of the drill rod is fixedly connected with a drilling machine, and the mixing proportion of sprayed cement paste and additives can be adjusted during work, so that better hole forming quality is achieved.

The utility model discloses a biodegradable film punching and collecting device, which comprises a punching unit, which comprises a rotating shaft, a punching wheel rotatably arranged on the rotating shaft, an armrest frame arranged between the two ends of the rotating shaft, and punchers arranged on the punching wheel at intervals along the circumferential direction, and each puncher is provided with a film breaking opening; the film collecting unit comprises an air nozzle installed in the film breaking opening, an air pump installed on the punching wheel, an air pipe connected with the air pump and the air nozzle and a film collecting box installed on the lower middle portion of the rear side of the punching wheel, and a film collecting opening is formed in the side, facing the punching wheel, of the film collecting box. Through the arranged film collecting unit, when a tapper rotating to the bottom breaks a film, an air pump sucks air, so that broken residual films are sucked into a film breaking opening, when the tapper rotating to the bottom rotates to a film collecting box, the air pump blows air, so that the residual films in the film breaking opening are blown into the film collecting box to be stored, the situation that the residual films are difficult to collect is avoided, and the aesthetic feeling is improved; and the recycling of resources is realized.

The utility model relates to the technical field of pile foundation structures, in particular to a pile steel casing reinforcing device in a bead type karst cave development area, and provides a practical device for construction of a cast-in-place pile foundation in the bead type karst cave development karst area by adopting a steel casing follow-up method. The device is characterized in that reinforcing blocks are fixedly connected to the outer side of an outer pile casing at equal intervals, reinforcing blocks are fixedly connected to the inner wall of the outer pile casing at equal angles, and one end of each reinforcing block is fixedly connected with an inner pile casing. The contact road holding force of the outer pile casing and the non-soil-dissolving hole section in the depth direction of the karst area can be increased through the reinforcing blocks and the clamping blocks, the firmness and stability of the outer pile casing in the karst area after installation are effectively improved, the overall rigidity of the outer pile casing and the inner pile casing after connection and installation can be improved through the built-in reinforcing blocks, and the service life of the outer pile casing and the inner pile casing is prolonged. And tight combination of the upper pile casing and the lower pile casing is guaranteed through a reserved groove. In conclusion, the construction quality of the pile foundation can be further improved, the grouting amount is reduced, the hole forming difficulty is overcome, the hole forming quality is improved, and the construction problems of slurry leakage, hole forming difficulty and the like of the pile foundation in the karst area are more effectively solved.

The utility model discloses a drill point for PCB (printed circuit board) processing, and belongs to the technical field of PCB drill points. The drill point comprises a point handle structure and a drill bit structure connected to the end of the point handle structure, a margin of the drill bit structure shrinks inwards in the axial direction of the drill point, the diameter of the margin close to the intersecting line of the main tool face and the auxiliary tool face is the diameter of the drill point, and the diameter of the margin away from the intersecting line of the main tool face and the auxiliary tool face is the clearance diameter. And an escape gap is formed between the diameter of the drill point and the diameter of the escape gap. According to the PCB drill point, the effective diameter of the edge strip (the diameter of the drill point) is reduced in the axial direction of the drill point, so that the contact area of a drill bit structure and a hole wall is effectively reduced, hole wall abrasion caused by the large contact area when the drill point rotates at a high speed is relieved, and therefore the hole opening quality of the PCB drill point is improved; in addition, the hole shrinkage design of the edge belt forms an escape gap, and the escape gap has the capabilities of assisting chip removal and heat dissipation, so that the performance of the PCB drill point is improved.

The utility model belongs to toughened glass processing technical field, concretely relates to a kind of laser hole cutting equipment for toughened glass, the laser hole cutting equipment for toughened glass, including bottom plate, the upper surface of bottom plate is fixedly connected with first U-shaped plate, the front and back sides of first U-shaped plate inner wall are all fixedly connected with cross pipe, the bottom of cross pipe is fixedly connected with distributing pipe, the bottom end of distributing pipe is fixedly connected with spray head. The laser hole cutting equipment for toughened glass is cooperated by first U-shaped plate, cross pipe, distributing pipe, spray head, first partition, water storage box, submersible pump and connecting pipe, after the glass on belt conveyor passes below spray head, the water sprayed by spray head, glass surface can be covered with a layer of water film, at this time, the diffusion of glass dust generated during cutting can be inhibited by water film, to prevent dust from adhering to laser head or focusing mirror of laser cutting device, ensure laser transmission efficiency and focusing accuracy, improve hole cutting quality.

The utility model discloses a tapping device for communication connector shell production, which relates to the technical field of communication connectors, and comprises a bottom plate, a box body is arranged on the bottom plate, a tapping machine is arranged above the box body, a damping mechanism is arranged between the box body and the bottom plate, a first movable groove is arranged in the box body, and a second movable groove is arranged in the box body. A first movable groove is formed in the top end of the box body, a lifting mechanism is arranged in the first movable groove, a clamping mechanism is arranged at the top end of the box body, the clamping mechanism drives the box body to conduct clamping through a rotating mechanism, and a dust collection mechanism is arranged at the position, located on one side of the clamping mechanism, of the box body. According to the tapping machine, shaking can be reduced in the tapping process through the damping mechanism, the tapping quality is improved, the communication connector shell is clamped through clamping, the tapping machine is more stable in the tapping process, and dust generated in the tapping process can be adsorbed through the dust suction mechanism.

The invention discloses a hole making operation method and device, a hole making robot and a storage medium, and relates to the technical field of aircraft assembling.The method comprises the steps that image information of a reference hole is obtained through a visual function assembly, and position information of a to-be-made hole is obtained according to the image information of the reference hole; according to the position information of the to-be-formed hole, a normal correction assembly is moved to the position above the to-be-formed hole, so that a normal correction posture is obtained through the normal correction assembly; and according to the normal correction posture and the position information of the to-be-drilled hole, drilling operation is completed through a drilling assembly. According to the technical scheme provided by the embodiment of the invention, the labor cost consumed by drilling is saved, the misoperation phenomenon caused by manual drilling is avoided, meanwhile, the position adjustment and posture adjustment during drilling operation are realized, the accurate position and posture of the drilling main shaft are ensured, the drilling process is greatly improved, and the drilling quality of the drilling robot is improved.

The invention provides a control method and system based on electric feeding drill equipment, and relates to the field of data processing.The method comprises the steps that according to selected materials and machining requirements, the corresponding rotating speed and the corresponding feeding amount are input; in the processing interface, sequentially clicking a power-on button and an automatic button to enable the power-on button and the automatic button to be powered on and automatically enter a to-be-processed state; the PLC performs data transmission with an upper computer through an Ethernet communication interface; the displacement and zero returning button is clicked, the PLC sends an instruction to the servo driver, and the servo driver controls the motor to move the cutter to the initial position; the start button is clicked, the PLC analyzes data from the upper computer, and pulse and direction signals are output and sent to the servo driver through the transistor; and the servo driver controls the movement of the motor according to the number and the frequency of the received pulses, so that the position and the speed of the cutter are controlled, and hole machining is started. According to the invention, high-efficiency and high-quality drilling processing is realized.

The invention relates to the technical field of pile foundation engineering construction, and discloses a novel cast-in-situ bored pile soil slurry separation slurry circulating system, a bored pile slurry return box is arranged above a bored pile steel casing, and a new slurry transition storage detection pool and a waste slurry outlet are arranged in the bored pile slurry return box; the new slurry transition storage detection pool is directly communicated with a pile hole through a detachable conveying flange pipe; the multi-stage mud precipitation system is used for carrying out multi-stage precipitation treatment on waste mud, and the inlet end of the multi-stage mud precipitation system is communicated with the waste mud outlet through a waste mud reflux pump and a waste mud reflux pipe; the silt separation device is used for carrying out silt separation on the slurry subjected to multi-stage sedimentation, the silt separation device is communicated with the outlet end of the multi-stage sedimentation slurry system and is communicated with the newly-made slurry transition storage detection pool through a newly-made slurry conveying pipe, and the device is environmentally friendly, efficient in construction, controllable in slurry quality, safe, reliable and remarkable in economic benefit.

The embodiment of the invention provides a through hole forming method of a package substrate, relates to the field of semiconductor processes, and mainly solves the problems of low etching speed, low hole forming efficiency or poor hole forming process in the existing through hole process of the package substrate. The method comprises the following steps: defining a through hole position on a packaging substrate; forming a first electrode at the position of the through hole in the first surface and forming a second electrode at the position of the through hole in the second surface by adopting a mask; pre-discharging the first electrode and the second electrode to form an electric breakdown area at the position of the through hole; removing the first electrode and the second electrode; reusing the mask, forming a first mask layer on the first surface, exposing the positions of the through holes by the first mask layer, and forming a second mask layer on the second surface, exposing the positions of the through holes by the second mask layer; and through the first mask layer and the second mask layer, etching to remove the electric breakdown region at the position of the through hole so as to form the through hole. Porous batch discharge is supported, and the discharge machining efficiency is greatly improved.

The invention belongs to the technical field of special-shaped curved surface flange welding trepanning, and particularly relates to an ellipsoid molded surface three-dimensional space in-situ milling trepanning technology which comprises a supporting film tire used for fixing and supporting an ellipsoid bottom, a center rotating shaft is arranged in the center of the supporting film tire, and a rotating supporting mechanism assembly is fixedly installed on the center rotating shaft. The rotary supporting mechanism assembly is located above the ellipsoid bottom. The rotary supporting mechanism assembly comprises an upper fixing ring, a lower fixing ring and a rotary sleeve. The upper fixing ring and the lower fixing ring are fixedly connected to the center rotating shaft, and the rotating sleeve is arranged on the center rotating surface in a sleeving mode. And one side of the rotating sleeve is hinged with the milling cutter fixing and adjusting assembly. According to the invention, the center adapter shaft is used as a rotation center, and the drilling operation of the ellipsoid bottom in a three-dimensional space is realized through a lever force application mechanism by adopting a milling cutter cutting machining mode.

The present application relates to a kind of bearing platform suitable for flat ceiling rock mass vertical drilling, the bearing platform includes the groove base being placed on fixed base, the groove being placed on groove base and the lifting platform and chuck for fixing drill rig being placed on groove.The fixed base is provided with two groups of connecting pipes, and the connecting pipe is connected with the support structure being placed in the lower part of rock mass by fastener;The top of groove is provided with end cover, and the bottom is provided with guide plate and positioning plate connected together;Lifting platform includes lifting body and rocker lever being sleeved on groove;The side of lifting body is provided with magnetic metal sheet, and the corresponding side is provided with chuck;The side of lifting body perpendicular to magnetic metal sheet is provided with connecting piece with through hole, and rocker lever is arranged in through hole;The side of groove adjacent to chuck is provided with sawtooth.The present application also discloses the use method of the bearing platform.The present application is easy to install, simple to operate, and can be used for different height, different angle anchor hole forming operation in site protection.

The invention belongs to the technical field of loess site anti-collapse construction, and relates to a loess site anti-collapse device and installation equipment. Water injection operation is cooperated by introducing the hole wall rubber sleeve water injection auxiliary device, an original mode of filling stones into a hole is replaced, the water delivery path is optimized while the water delivery efficiency is guaranteed, and therefore homogeneous water injection within the field design water injection depth range is achieved.

The invention discloses a special tool for quick cutting of a horn, comprising a chassis jig, a rotating mechanism and a cutting tool, wherein the middle part of the rotating mechanism is rotatably fixed on the chassis jig through a rotating shaft, and there are two cutting tools, which are respectively arranged at two ends of the rotating mechanism, and the cutting tools are driven to rotate by the rotating mechanism to achieve cutting of the profile; the chassis jig is in a disc shape, one end of the rotating shaft is arranged at the center of the chassis jig, and the other end of the rotating shaft is arranged with a thread; the rotating mechanism comprises a rotating arm and a thrust ball bearing, the center of gravity of the rotating arm is arranged with a through hole sleeved on the rotating shaft, and a clamping nut is arranged on the rotating shaft; the invention arranges a rotating mechanism on the chassis jig, and arranges a cutting tool on the rotating mechanism, and the cutting tool is driven by the rotating mechanism to cut the profile placed on the chassis jig, thereby changing the hole opening method of the through hole, improving the hole opening quality, and reducing working noise.

The auxiliary tool is characterized in that a pull rod and a positioning cone are coaxially arranged, the pull rod is connected to the small-diameter end of the positioning cone, and a supporting plate is arranged at the end, away from the positioning cone, of the pull rod; the supporting plate is adjustably arranged on the pull rod in a sliding mode and limited through the lower locking piece. The maximum diameter of the positioning cone exceeds the diameter of the sleeve, when the sleeve is positioned on the floor support plate, the pull rod penetrates through the floor support plate and an inner cavity of the sleeve, and the positioning cone and the supporting plate are arranged on the two sides of the floor support plate respectively. The sleeve and the pull rod are coaxially pressed on the floor support plate through the approach of the positioning cone and the support plate; the common quality problems of deviation, inclination, grout leakage at joints and the like of the sleeve in the concrete pouring process and the construction operation can be solved, and the problems that the use function of the sleeve is reduced, reworking and repairing are caused, the material and labor cost is increased, and the overall forming quality of a steel bar truss concrete floor is affected are solved. And the defect that the auxiliary embedded fixing device cannot be recycled is overcome.

The utility model belongs to the technical field of agricultural mechanical equipment, and provides an autorotation transplanting perforating machine which comprises a machine frame, a six-edge rod is horizontally and rotatably connected to the machine frame, and a power input piece used for driving the six-edge rod to rotate is arranged between the six-edge rod and the machine frame. The punching wheel assembly comprises a wheel shell part slidably connected to the six-edge rod, a plurality of punching drill bits are arranged on the circumferential side wall of the wheel shell part in the radial direction at equal intervals, a driving mechanism is arranged in the wheel shell part, the driving mechanism is in transmission connection with the six-edge rod, and the driving mechanism is in transmission connection with the multiple punching drill bits; the interval fixing assembly comprises fixing sleeve pieces arranged on the two sides of the wheel shell pieces and a middle rod fixedly connected to the rack, two sets of blocking strips are connected to the middle rod in a sliding mode, the two blocking strips correspond to the two wheel shell pieces respectively, and interval measuring pieces are arranged between the two blocking strips and the middle rod. According to the utility model, the punching effect can be improved, and the difficulty of line spacing adjustment operation is reduced.

This invention relates to interlocking cast-in-place pile construction technology, specifically a long spiral drilling device and construction method for interlocking cast-in-place piles. It includes a drill pipe, the upper end of which is concentrically and fixedly connected to the output shaft of a power head. A casing is concentrically and fixedly connected to the output shaft of the power head, with the drill pipe located inside the casing. The drill pipe and casing are concentric, and a spiral auger is fixed to the outer edge of the drill pipe. A hole bottom correction component is installed at the lower end of the drill pipe. In this construction method, the drill pipe and casing are spiraled in together. The casing prevents hole wall collapse during drilling, effectively forming holes in dense, fine sand strata rich in groundwater. It can correct the outer side of the hole bottom, improve the quality of the formed hole, and ensure the quality and stability of the concrete pile. Addressing the limitations of traditional mechanical equipment performance and ultra-thick gravel layers, this construction method solves the problems of hole formation and interlocking of cast-in-place concrete piles under special geological conditions.

The application relates to the technical field of geotechnical engineering and geological disaster prevention, in particular to a drilling device for a complex high and steep slope, which comprises a fixing part for fixing on a slope surface, a supporting plate installed on the surface of the fixing part, and a drilling assembly installed on the supporting plate and slidingly matched with the supporting plate, the fixing part comprises a fixing plate for fixing on the slope surface and a drilling positioning plate fixed with the fixing plate, a hollow soil discharging cavity with an opening facing the slope bottom is arranged in the drilling positioning plate, a soil cleaning assembly is arranged in the soil discharging cavity, and a transmission part is arranged in linkage between the drilling assembly and the soil cleaning assembly, so that the soil cleaning assembly discharges the soil brought out by the drilling assembly into the soil discharging cavity while the drilling assembly is lifted, and the drilling efficiency and drilling quality are improved.

The invention discloses a cast-in-place pile pore-forming perpendicularity detection structure and method.The structure comprises a bottom supporting piece, a measuring piece, a supporting assembly, a stay wire, a detector and a wire drawing device, the bottom supporting piece is connected with the supporting assembly, the measuring piece is connected with the supporting assembly through the stay wire, one end of the stay wire is connected with the wire drawing device, and the other end of the stay wire is connected with the detector; the detector and the wire drawing device are arranged on the supporting assembly. The structure is simple, the bottom supporting piece, the measuring piece, the supporting assembly and the like can be made of waste materials of a construction site, and the utilization rate of the waste materials is increased. The descending of the measuring piece is limited through the stay wire and the wire drawing device, and when the stay wire handle pulls the measuring circular ring upwards through the stay wire, whether the perpendicularity of the cast-in-place pile hole meets the requirement or not is judged by judging the readings of the detectors on the inclined strut A and the inclined strut B. By comparing the readings before and after the detector, the detection structure can accurately judge the perpendicularity of the formed hole, reduce engineering defects and avoid disasters.

The application discloses a normal state carrying advanced drilling and grouting integrated equipment and operation method of a shield machine, the equipment is carried on a segment erector, and comprises an embedded mounting base, a folding propulsion beam assembly, a folding driving mechanism, a posture adjusting mechanism and a locking and positioning mechanism, and a hydraulic and electric control system is integrated into an original system of the shield machine. The embedded base is embedded in a process blind area of the segment erector, the propulsion beam can be folded and stored without interfering with the segmenting operation, multi-hole alignment is realized by relying on the rotation and translation of the segment erector, and a rigid bearing structure with fixed ends is formed after unfolding. An adaptive drilling, blowout prevention interlocking and intelligent grouting control module is built in an electric control unit, and the adaptive drilling of a stratum, rapid blowout prevention and intelligent grouting control can be realized. The operation method comprises advanced drilling and advanced grouting processes, and the drilling and the grouting share the same hole system. The application is adapted to small-diameter shield space constraints, realizes normal state carrying of the equipment, does not need to be frequently disassembled and assembled, and improves the construction efficiency and safety performance in complex strata.

The invention relates to the field of aircraft assembling and manufacturing, in particular to a method for optimizing a complex titanium lamination hole making process of automatic equipment. The method comprises the following steps: firstly, establishing a finite element simulation model on the basis of an automatic equipment complex titanium lamination hole making working condition, and simulating the complex titanium lamination hole making working conditions of different machining modes, cutter parameters and cutting parameters; according to the simulation result, the optimal machining mode is selected, and the influence rule of cutting parameters and cutter parameters on the cutting force is studied. And based on the simulation result, carrying out a research and development test on the special cutter for the composite titanium laminated hole making, selecting optimal cutter parameters and cutting parameters, and completing research and development of the special cutter. After research and development of the special cutter are completed, a cutter abrasion test is carried out, and the abrasion morphology and the abrasion rule of the cutter are researched. And a drilling quality optimization test is carried out, and the influence rule of the cutter parameters and the cutting parameters on the drilling quality is studied.

The utility model discloses a concrete pouring preformed hole formwork structure which comprises a first frame, a second frame, a third frame and a fourth frame. The second frame is of a rectangular frame structure formed by sequentially welding four angle irons end to end, and the second frame is located under the first frame; the multiple bolt holes are formed in the second frame, and fastening bolts on the external aluminum mold penetrate through the bolt holes so that the second frame can be fixed to the external aluminum mold; the tops of the four supporting steel plates are fixedly welded to the first frame, the bottoms of the four supporting steel plates are fixedly welded to the second frame, and every two adjacent supporting steel plates are fixedly welded. According to the preformed hole template, the risk of loosening or cracking around the preformed hole can be reduced, and the structural strength of the preformed hole template can be improved, so that the transverse load resistance of the preformed hole template is improved, and the hole forming quality is improved.

The utility model belongs to the technical field of wallboard prefabrication forming, and particularly relates to a forming die of a hollow wallboard. The gypsum wallboard further comprises a core rod which is used for blocking the through hole and enabling the gypsum wallboard to form a hollow structure. The core rod comprises a rubber sleeve and a supporting rod arranged in the rubber sleeve; one end of the core rod serves as a push-pull end, and the other end serves as a free end; the inflation and deflation pipeline is communicated with the rubber sleeve and extends out of the core rod from the push-pull end; when gypsum slurry is poured into the main forming cavity, the horizontally-arranged core rod and the main forming cavity are installed in a penetrating mode through the through hole, the push-pull end of the core rod is located outside the main forming cavity, and the rubber sleeve is inflated and blocks the through hole. And the hole forming quality of the gypsum hollow wallboard can be improved. And the core rod can be conveniently pulled out, gypsum hollow wallboards of various sizes can be produced, and the production efficiency is improved.