211 results about "Single section" patented technology

The invention discloses a large steel pipe automatic assembling and welding operation device which comprises a walking assembly, a welding assembly, an assembling assembly, an overturning assembly connected with the walking assembly and the welding assembly and a telescopic assembly connected with the welding assembly and the assembling assembly. The walking assembly is used for walking in a steel pipe and driving the welding assembly and the splicing assembly to rotate circumferentially, the welding assembly is used for welding a longitudinal seam in a single steel pipe section and a circular seam between two adjacent steel pipe sections, the splicing assembly is used for grabbing tiles and driving the tiles to rotate circumferentially, and the telescopic assembly is used for telescopic movement of a movable end. The overturning assembly is used for driving the welding assembly and the splicing assembly to overturn relative to the walking assembly so as to adjust the angle when the steel pipes are spliced; compared with the prior art, automatic operation and mutual connection of working procedures of tile splicing, longitudinal seam welding, steel pipe splicing, circular seam welding and the like of the large steel pipe in an installation site are achieved at the same time.

The invention discloses a welding method for a tower drum and a foundation ring of a wind generating set. Comprising the following steps: a welding preparation stage: carefully selecting and treating materials, strictly debugging equipment and carefully preparing weldments; in the welding implementation stage, an argon-rich mixed gas shielded welding method is determined, welding process parameters are optimized, and the welding processes of a single-section longitudinal seam and a flange, two small-section assembly, large-section assembly length, an inner circular seam and an outer circular seam are accurately controlled; in the welding quality control stage, welding parameters are monitored and adjusted in real time, and appearance inspection after welding, RT ray inspection, mechanical property testing and metallographic testing are strictly conducted; and the production practice and optimization stage is applied to actual production, problems are tracked and solved, and the process is continuously optimized to improve the quality. The method effectively improves the welding quality and the production efficiency, enhances the structural stability, reduces the cost and promotes the development of the wind power industry.

The invention relates to the technical field of aluminum alloy profile processing, and particularly discloses a super-long thin-wall aluminum alloy profile anti-deformation vertical quenching method which comprises the following steps: S1, determining mechanical parameters, and obtaining the maximum equivalent buckling axial pressure P of a to-be-quenched aluminum alloy profile; s2, determining the maximum constraint length of a single section: further calculating the maximum allowable length of the single constraint section of the to-be-quenched aluminum alloy section; S3, determining a minimum constraint section; S4, carrying out solid solution quenching: equally dividing the to-be-quenched aluminum alloy section according to the minimum constraint section N, and carrying out section marking in the radial direction from the bottom to the top, the adjacent segment marking positions and the top of the sectional material are restrained and fixed; and after fixation, solid solution quenching is carried out, and after solid solution quenching is completed, the profile is taken out. The vertical quenching device is suitable for vertical quenching requirements of various ultra-long thin-wall aluminum alloy profiles with complex sections, and the profiles are effectively prevented from being deformed in the vertical quenching process.

The invention relates to a sectional type positioning installation method and system for a steel structure frame, and relates to the technical field of building structure construction. The method comprises the steps that three-dimensional coordinate measurement is conducted on the embedded bolt through a total station, a deviation value recording table is obtained, and a control network and a marking system are established; the method comprises the following steps: performing ultrasonic flaw detection and pre-tension reinspection on a steel structural member, performing ground pre-assembly to obtain a single-section steel frame model, and performing optimization treatment to form a number marking system and an assembly sequence diagram; a steel structure is divided into a plurality of independent installation units, and preliminary positioning is achieved through a temporary fixing technology; secondary measurement is carried out, fine adjustment is carried out through an ejector and a wire drawing device, accumulated deviation is dispersed through an overall balance method, and the pre-camber is set to obtain a stable frame system; the high-strength bolts are finally tightened, and welding construction is conducted; the roof system is installed in a batched concentrated hoisting mode. The problem that accumulated errors are difficult to control in traditional steel structure installation is solved, and the installation precision and efficiency are improved.

The invention relates to the technical field of solid-liquid separation equipment, and discloses a self-cleaning type dehydrator which comprises a supporting frame, and two or more supporting plates arranged at intervals are arranged in the direction from the feeding end to the discharging end of the supporting frame; the filtering unit is provided with two sections or more than two sections along the direction from the feeding end to the discharging end of the supporting frame, and a single section of filtering unit is positioned between two adjacent supporting plates; each section of filter unit comprises two or more groups of movable components; the driving mechanism is supported by the supporting plate, is matched with the movable components and is used for driving each group of movable components in the same section of filtering unit to perform circular motion with staggered motion trails; the periphery of the movable ring extends smoothly, a connecting lug used for being connected with the connecting columns in series is arranged on the periphery of the movable ring in a protruding mode, and the periphery of the connecting lug is provided with a guide part used for guiding impurities downwards away from the movable ring in the circular motion direction of the movable ring. The filtering permeability of the equipment can be improved.

The invention provides a single-wall steel open caisson with T-shaped ribs and a construction method of the single-wall steel open caisson. The single-wall steel open caisson comprises a plurality of single-section steel open caisson bodies assembled in the longitudinal direction. Each single-section steel open caisson comprises a circular steel open caisson, a plurality of T-shaped stiffening ribs and a plurality of anti-drag grouting pipes, wherein the T-shaped stiffening ribs are evenly arranged on the outer wall of the circular steel open caisson in the circumferential direction at intervals, and the anti-drag grouting pipes are arranged on the inner wall of the circular steel open caisson. Based on the change of the section form of the single-wall steel open caisson, the T-shaped stiffening ribs are arranged on the outer wall of the circular steel open caisson, so that the strength and rigidity of the whole single-wall steel open caisson structure are enhanced; the problems that due to insufficient rigidity and large load effect of an existing single-wall steel open caisson, lateral displacement of the open caisson is large, local stress of the open caisson wall is concentrated, and stability is insufficient are solved, the pressing depth and engineering safety of the steel open caisson are ensured, and the steel open caisson is supported to be further developed towards the longitudinal depth.

The invention relates to the technical field of platform lifting and locking, and discloses a platform lifting and locking device which comprises a drilling machine platform base, driving mechanisms are arranged on the two sides of the upper portion of the drilling machine platform base, a lifting mechanism is arranged in the middle of the upper portion of the drilling machine platform base, and the lifting mechanism comprises a plurality of single sections, a supporting hinge frame and a supporting angle seat. The supporting angle seats are located above the driving mechanism, the supporting angle seats are rotationally arranged on the two sides of each single section, and the supporting hinge frames are arranged in the single sections. The supporting angle seats on the two sides of the single section are supported through the driving mechanism, due to the fact that the driving mechanism of the lifting mechanism is always located at the bottom of the drilling machine platform base, the gravity of the lifted lifting mechanism is slightly lower, the driving mechanism does not need to bear the gravity of the driving mechanism, and the problem that when an existing self-climbing lifting platform ascends and descends is solved. A carrier capable of lifting and a power source need to be driven to lift together, or a crossed telescopic frame cannot complete high-altitude lifting.

The utility model discloses a square steel tube with an inbreak angle and an anti-slip concrete filled steel tubular column with the inbreak angle, which relate to the field of constructional engineering, and comprise the square steel tube with the inbreak angle, the square steel tube with the inbreak angle is built together through a plurality of single sections, and the upper end face and the lower end face of the built square steel tube are closed along with the shape. And the concrete is poured into the inner cavity of the square steel tube with the inner break angle and is bonded into a whole. The steel pipe concrete column is ingenious in conception and reasonable in layout, and the folded inner folding angle can play a better role in restraining concrete in the column, so that relative slippage between the steel pipe and the concrete at the inner folding angle is effectively reduced, and the overall stress performance of the steel pipe concrete column is improved.

The invention relates to the field of compressed air energy storage engineering pressure steel linings, in particular to an annular air storage hole steel lining installation system and method.The installation system comprises at least one in-hole workshop, and each in-hole workshop comprises a tile transfer station, a single-section assembling and welding station, a single-section assembling and welding station, a single-section assembling and welding station and a single-section assembling and welding station, the single-section assembling and welding station is located in the gas storage hole main hole, is close to the construction branch hole and is used for assembling and rounding the tiles into single-section steel lining pipe sections; the large-section assembling and welding station is located in the gas storage hole main hole, is close to the single-section assembling and welding station and is used for assembling and welding the single-section steel lining pipe section into a steel lining large section; and the large section transportation station is located in the gas storage hole main hole, is close to the large section assembling and welding station and is used for transporting the assembled and welded steel lining large section to an installation position for installation. A complete in-hole workshop system can be formed, in-hole mechanical and intelligent assembly line type construction operation of the gas storage hole steel lining from tiles to large pipe joints is achieved, and the construction progress is accelerated.

The utility model discloses a subsection assembly type submersible permanent magnet synchronous motor which comprises motor sections and spline assemblies, the motor sections are connected through the spline assemblies, each motor section comprises a single-section shell and a motor shaft, the single-section shells are connected in a welding mode to form a motor shell, the two ends of each single-section shell are respectively provided with a supporting sleeve, and the motor shaft is connected with the supporting sleeves. The motor shaft penetrates into the single-section shell, the two ends of the motor shaft penetrate to the outer side of the supporting sleeve respectively, the two ends of the motor shaft are provided with shaft sleeves respectively, the shaft sleeves play a role in protecting the motor shaft, the spline assembly comprises a bearing seat, a spline sleeve and a self-aligning roller bearing, and the connecting ends of the motor shaft are inserted into the spline sleeve respectively. A cavity is reserved between the connecting ends of the motor shaft; the whole submersible permanent magnet synchronous motor adopts a segmented assembly structure, the length of a single motor shaft can be effectively reduced, submersible permanent magnet synchronous motors with different lengths can be assembled, the self-aligning performance is good, and the coaxiality error of the motor shafts can be compensated.

The invention relates to the technical field of underground engineering construction, in particular to a prefabricated station jacking method using novel longitudinal beam connection, which comprises the following steps of: prefabricating prefabricated longitudinal beam single-section components according to station structure blocks, and sequentially and integrally jacking the prefabricated longitudinal beam single-section components in a ring-dividing manner under the assistance of a temporary support system; pre-stressed anchor cables are arranged in reserved anchor cable tensioning holes in the hogging moment stress areas of the prefabricated longitudinal beam single-section components in a penetrating mode and tensioned to the designed pre-stress, and the hogging moment stress areas of the prefabricated longitudinal beam single-section components form a whole; the pre-embedded stress steel plates of the prefabricated longitudinal beam single-section components of the adjacent rings are connected in the joint areas, so that the sagging moment stress areas of the multiple prefabricated longitudinal beam single-section components form a whole; and a wet joint is poured in the joint area. The method has the advantages that the construction efficiency is improved; the structural safety is enhanced; the engineering cost is reasonably controlled; the method adapts to complex geological conditions; green construction is promoted; the construction efficiency is improved, the cost is reduced, and the structural safety is enhanced.

A manufacturing method of a K-shaped derrick main body relates to the technical field of petroleum drilling and production equipment, and comprises the following steps: step 1, drawing a derrick borehole center line, a thigh center line, a thigh outer contour line and a plurality of groups of rack end surface sample lines on a platform; 2, main legs of all sections of racks of the derrick are uniformly placed and fixed to a platform according to a sample line, rack cross braces and inclined braces are installed, and positioning assembly positioning welding is carried out; thirdly, the section connecting single-lug plates and the double-lug plates on all the section racks are positioned and welded to the main legs according to the center lines of the thighs and the drawing sizes; fourthly, the center line of a well hole of the derrick is reversely guided and copied to each segment of rack, and proofing and hole punching are conducted; step 5, welding the single piece of the piece rack in a conventional mode, and connecting the single lug plate and the double lug plate in sections; sixthly, a numerical control floor type boring and milling machine is used for being matched with a plate bending tool to machine the end face of the rack, the section connecting single-lug plate hole and the double-lug plate hole to the required size; by means of the method, it can be guaranteed that the attachment faces between the single sections of the derrick are aligned and attached tightly, and the method has the advantages of being good in bearing capacity and stability.

The invention provides a vertical shaft double-layer steel shaft wall lifting system which comprises a base plate, a lifting rod parallel to a double-layer shaft is rotatably inserted in the base plate, a first limiting plate parallel to the base plate is fixed to the bottom of the lifting rod, and a second lifting lug is arranged at the top of the lifting rod. And the first limiting plate is rotated to be staggered with the base plate in a manner of rotating the lifting rod, so that when the double-layer shaft is lifted, the top surface of the first limiting plate can be in contact with and lift the bottom wall of the upper flange plate. The auxiliary mechanism is used for assisting in pressing the top wall of the upper flange plate corresponding to the first limiting plate in position before lifting. Hoisting connection is achieved by using the original pouring hole in the upper flange plate as a stress point, mounting and dismounting operation of the hoisting structure on the pouring hole can be efficiently completed before and after hoisting, the single-section hoisting efficiency of the double-layer shaft is improved, reutilization can be achieved, cost is saved, and it is ensured that the inner wall structure of the double-layer shaft is not damaged.

The invention relates to the technical field of offshore wind power single pile manufacturing methods, in particular to an ultra-large type single pile construction process method which comprises the following steps: (a) plate blanking; (b) splicing the jointed plates, hoisting the jointed plates to a feeding platform of a plate rolling machine by using a jointed plate horizontal hoisting scheme, turning over the jointed plates by using a jointed plate turning scheme, and splicing and welding the jointed plates before rolling; (c) prefabricating a single-section cylinder body; (d) segmental lengthening is carried out; (e) the whole pile is lengthened; (f) flange installation and machining; (g) sanding, paint spraying and waterline marking; according to the method, a new technological method is researched and designed from all procedures and all links, various difficulties in the ultra-large type single pile construction process are solved, streamlined production lines are achieved, and practicability is high; manufacturing and welding are completed step by step from single section to segmentation to integration, the manufacturing process is simple, the construction period can be effectively shortened, and the machining time is shortened.

The utility model relates to a steel structure building downpipe system which comprises multiple water-saving downpipes, nuts and pipe clamps, and single water-saving downpipes are connected through corrugated short sections. The nuts are fixed on a steel column or a pre-embedded steel plate of the steel structure building at intervals in the height direction; and the other end of the pipe clamp is connected with the nut. The pipe clamp comprises a double-semicircle holding clamp and a stud fixedly connected to one side of the double-semicircle holding clamp, and the stud is in threaded connection with the nut. The diversion rope is arranged in the middle of the downpipe in the height direction. The nut is used as a pipe clamp connection foundation, the distance between the structure and the downpipe is effectively utilized, meanwhile, the straightness of the downpipe can be secondarily adjusted, and the whole downpipe is straight. The water falling pipe is connected through the corrugated short section, and part of pipe sections can be replaced and arranged more conveniently. The flow guide rope in the downpipe is added, so that the flapping and impact of rainwater on the pipe wall and the weight of rainwater flowing down along the pipe wall are reduced, and the downpipe is firmer.

Provided is an article processing assistance device that prevents reductions in work efficiency under conditions that allow for storage of a plurality of types of articles in a single section. According to the embodiments, an article processing assistance device comprises an interface and a processor. The interface receives article information that includes article identification information and an article size for respective articles, section information that includes section identification information, a section size, and a section position for respective sections of equipment that stores articles, inventory information that includes article identification information for predetermined articles, section identification information for the sections at which the predetermined articles are stored, and storage positions within the sections at which the predetermined article are stored, and warehousing information that includes article identification information for articles to be warehoused. The processor estimates open areas within the sections on the basis of the section information and the inventory information, detects storage candidate areas at which the articles to be warehoused can be stored from the empty areas within the sections on the basis of the article information and the warehousing information, and outputs warehousing assistance information about the storage candidate areas.

The present invention shortens the time from the peeling operation until the wafer is conveyed to a single wafer cleaning unit by a transfer device without damaging the wafer, and improves the overall efficiency. In a wafer peeling and cleaning apparatus, a wafer peeling unit (100) has a first peeling chuck (200) and a second peeling chuck (201), a fall stop plate (214), and two take-out prevention plates (216) having a slit (216a) formed in the upper portion of the fall stop plate (214), and a transfer device (118) has a transfer chuck (300) and a pressure switch that detects that a wafer (W) is sucked and held by the transfer chuck (300). According to the detection signal of the pressure switch, the vacuum suction of the first stripping suction cup (200) and the second stripping suction cup (201) is released, and the retraction of the delivery suction cup (300) and the descending of the first stripping suction cup (200) and the second stripping suction cup (201) are started.

The invention discloses automatic press-fitting equipment for a deep groove ball bearing retainer and an elastic deformation compensation method, relates to the technical field of bearing processing, and is characterized in that aiming at optimization and improvement of a bearing piece, single-section pressing pocket pieces are arrayed in the annular direction of a shaft washer and are in mirror symmetry in the thickness direction, upper and lower pressing parts are staggered and overlapped, and a rubber elastic gap is reserved; the connecting rod is connected with all the single-section pressing pocket pieces through one-way / two-way slotting, the outer ring arc pieces are matched with the inner pressing blocks and the fastening rivet sleeves to strengthen the structural stability, the compensation method comprises the workpiece improvement stage and the press fitting improvement stage, and in the workpiece stage, staggered assembly of the single-section pressing pocket pieces and the outer ring arc pieces is completed. In the press-fitting stage, the upper end and the lower end of a bearing assembly are synchronously pressed through a press-fitting tool bit, a pressing head is matched with an outer ring arc piece to achieve uniform stress, and through the design of a separated retainer and symmetrical synchronous press-fitting, local stress concentration is effectively avoided, elastic deformation and ball damage are reduced, the bearing assembly quality is improved, and the service life of the bearing is prolonged. The method is suitable for large-scale production of various deep groove ball bearings.

The surface spraying device comprises a base, a lifting device is arranged at the position, close to the front end, of the center of the upper end face of the base, multiple sets of first telescopic assemblies are symmetrically arranged at the output ends, on the two sides of the lifting device, of the base, and first telescopic rods are arranged at the output ends of the first telescopic assemblies; a first moving frame is arranged at one end of the first telescopic rod, a first sliding rail is arranged at one end of the first telescopic assembly on the upper end face of the base, and a first sliding groove is formed in the bottom end of the first moving frame. The clamping block is arranged at one end of the rotating shaft, so that the rotating driving piece drives the clamping block to rotate through the rotating shaft, the clamping block moves along the interior of the annular sliding groove through the annular sliding rail, and then the clamping block fixes the barrel from the two ends and drives the barrel to rotate; the problem that a spraying device cannot guarantee the spraying thickness is solved, and therefore the barrel spraying quality is improved.

The application relates to a construction method of an inner water pressure device of an ultra-large-caliber reinforced concrete pipe jacking pipe section, which comprises the following steps: S00, hoisting a bottom blocking plate; S10, installing a pipeline and a positioning sleeve ring; S20, installing a top blocking plate; S30, performing an inner water pressure test on a single pipe section; S40, installing a pipe section splicing support and hoisting a lower pipe section; S50, installing a pipe section interface splicing device and splicing an upper and lower pipe jacking pipe section; S60, assembling a hoisting type pipe jacking interface inner water pressure test device; S70, installing the hoisting type pipe jacking interface inner water pressure test device; S80, performing an inner water pressure test on a pipe section interface; and S90, installing a pipe jacking interface opening angle positioning device. The application has the advantages that a pipe jacking pipe section interface splicing device and a pipe jacking inner water pressure counter-pulling adjustment test frame are adopted, the structure design is ingenious, assembly is convenient, the positioning sleeve ring can be used for adjusting the perpendicularity of the pipe section, the sealing property of the structure can be maintained, the leakage phenomenon is reduced, the reliability of detection data is improved, and remarkable economic benefits are achieved.

The utility model provides a clothes drying device with detachable single-section rods, and relates to the field of clothes drying devices.The clothes drying device with the detachable single-section rods comprises two main clothes hangers, a plurality of supporting rods and two single-section rods, and the two ends of each single-section rod are fixedly connected with connecting rods. The limiting rod can slide upwards in the inner wall of the sliding groove to drive the spring to contract, then when the clothes hanger is hung on the inner wall of the groove and the limiting rod is loosened, the limiting rod can be driven to slide downwards to reset under the reset effect of the spring, and one side of the limiting rod abuts against one side of the inner wall of the limiting frame and the outer surface of a clothes hanger hook. The upper portion of the clothes hanger hung in the inner wall of the groove is limited and blocked, in this way, when clothes are aired, the clothes hanger is not prone to sliding and rotating on the single-section rod in windy weather, the situation that the hung clothes fall on the ground and are stained due to falling is avoided, the use effect of the clothes drying device is improved, and use is convenient.

The application discloses a kind of rigid-flexible composite connecting devices for multi-section pipeline robot, comprising: connecting component I and connecting component II;Connecting component I includes mounting seat I, cable assembly and butt joint ball rod;Connecting component II includes mounting seat II, ball head guide assembly and ball head limiting assembly;One end of cable assembly is connected with mounting seat I, the other end is connected with mounting seat II;Ball head guide assembly and ball head limiting assembly are arranged on mounting seat II;One end of butt joint ball rod is connected with mounting seat I, the other end is provided with ball head, ball head guide assembly is provided with the guide channel along the axial direction in, ball head can enter and exit ball head limiting assembly along guide channel;The present application can realize rigid-flexible switching connection, with autonomous docking function, pipeline adaptive ability is strong, the overbending problem of multi-section pipeline robot is converted into the overbending problem of single-section pipeline robot, can pass through small curvature radius narrow bend and T type pipeline, improve the overbending of multi-section robot.

The invention discloses a radial gate modular manufacturing method, which relates to the technical field of radial gate manufacturing, and comprises the following steps: performing primary correction on each workpiece according to a primary deviation detection result to obtain a primary corrected workpiece group; scanning the workpiece group after primary correction to obtain a three-dimensional model of the workpiece group, simulating and assembling the three-dimensional model of the single gate leaf group according to the three-dimensional model of the workpiece group to form a three-dimensional model of the single gate leaf group, and performing secondary deviation detection on the three-dimensional model of the single gate leaf group according to the design model of each single gate leaf, performing three times of deviation detection on the three-dimensional model of the single-leaf door leaf structure according to the design model of the single-leaf door leaf structure, assembling the corrected single-section door leaf into the single-leaf door leaf structure, and performing radian detection on the assembled single-leaf door leaf structure, and the standard single-section gate leaf group passing the radian detection is conveyed to a construction site for on-site assembly of the radial gate. The radial gate field welding construction procedure is simpler, the production efficiency is high, and the construction accuracy is high.

The utility model relates to a fusiform steel pipe latticed column, belongs to the technical field of civil engineering, and solves the problem that the building effect and the overall stability of the fusiform steel pipe latticed column are contradictory. The fusiform steel pipe latticed column comprises a plurality of single-section columns, the single-section column comprises a first single-section column and a second single-section column; the first single-section column comprises a limb tube, a transverse lacing tube, an inhaul cable structure, a single ear plate node and a space butterfly-shaped ear plate node; in the first single-section column, the number of the branch pipes is three, and the branch pipes are vertically arranged; the number of the transverse lacing pipes is six, the transverse lacing pipes are horizontally arranged, and the two ends of each transverse lacing pipe are connected with the corresponding nodes on the two adjacent branch pipes respectively; the number of the inhaul cable structures is six, one end of each inhaul cable structure is connected with the node through the single-lug-plate node, the other end of each inhaul cable structure is connected with the spatial butterfly-shaped lug plate node, and the spatial butterfly-shaped lug plate node is located on the central axis of the first single-section column. According to the utility model, the building effect and the overall stability can be balanced.

The present invention provides a method for designing automatic shielding of a single section of an impedance strip of a belt program, comprising the following steps: S1. When designing a script for belt program output, set program rules to automatically add a " / " symbol in front of the code of the specific part of "coupon impedance strip fixed tool single section", to prepare for subsequent machine identification and special processing, and accurately locate the program part that requires special control. The present invention provides a method for designing automatic shielding of a single section of an impedance strip of a belt program, by adding a " / " symbol in front of the code of the specific part of the coupon impedance strip fixed tool single section, after the coupon impedance strip output is completed, the program section with the " / " symbol is shielded or deleted, so that other program sections can be avoided from being deleted, thereby avoiding quality abnormalities in the product, bringing significant gains and convenience to production.

The invention discloses a ship mooring part split design method based on multi-process forming parameter optimization, and relates to the technical field of ship structural part precision forming and process optimization design. The method comprises the following steps: generating a plurality of candidate split structure schemes and corresponding multi-process forming paths; working procedure state vectors used for representing the equivalent stiffness, the plate thickness change and the residual stress after the single-section structure is formed are constructed; establishing a cross-process state association mechanism based on process state vector recursion; based on the cross-process state correlation mechanism, stability analysis is conducted on forming parameters within the process disturbance range, and a forming parameter robust value interval meeting the target assembly precision requirement is determined; and performing quantitative comparison and optimization on each candidate split structure scheme based on the value interval. The technical problems that in the prior art, split design of ship mooring pieces depends on experience, the multi-process forming coupling effect is difficult to quantitatively evaluate, the assembly precision is difficult to guarantee, and the process robustness is insufficient are solved.

The invention relates to the technical field of wired tunnel shock absorption blasting, in particular to a shock absorption blasting structure close to a wired tunnel and a blasting construction method.The shock absorption blasting structure close to the wired tunnel is characterized in that slotting holes, coping holes, bottom plate holes, inner ring holes, peripheral holes and blasting shock absorption holes are distributed in the section of the tunnel; the blast holes formed in the high section position serve as shock absorption holes of the blast holes in the low section position at the same time, the blasting shock absorption holes can serve as shock absorption holes of the cut holes, rock mass thrown out when the cut holes are blasted can be crushed again, the block diameter of the rock mass is reduced, and the situation that the cut holes need to be subjected to secondary blasting due to the fact that the block diameter of the rock mass blasted by the cut holes is too large is avoided; and vibration velocity superposition of the underholing holes in the center of the tunnel can be reduced, and the transverse vibration velocity of the underholing holes is further reduced. According to the blasting construction method, each blast hole is subjected to segmented blasting, the total explosive quantity of a single segment of a cut hole can be reduced, the vibration velocity can be reduced on a blasting propagation path, the safety of an adjacent building can be guaranteed, the construction difficulty and the construction cost can be reduced, and the construction efficiency can be improved.

The embodiment of the invention discloses a measurement method for improving the precision of laser measurement of the fitting linearity of a low-rigidity rotary body, and the method comprises the steps: placing a measured rotary body at a plurality of preset rotation angles, and moving the measured rotary body from one end of the measured rotary body to the other end of the measured rotary body through a laser distance measurement sensor for measurement, the coordinate of the fitting circle center O of the single section position of the measured rotary body is calculated; calculating the maximum enveloping circle of the fitting circle center of the single section of the measured revolving body; compensating and measuring the downward movement amount of the coordinate of the fitting circle center O of the single section due to self weight, and compensating the fitting circle center O to obtain the coordinate of the compensated fitting circle center O of the single section; coordinates of the compensation fitting circle centers O of the multiple sections are obtained, and the straightness error of the measured rotary body is calculated. The problems that pits, scratches and abnormal reflection on the continuous highest point position of the side face of the rotary body part affect measurement and recognition of the highest point, and bus dislocation affects measurement precision are solved.

The invention relates to an assembly type side box composite beam bridge location modular suspended splicing construction method. The method comprises a single-segment construction method, wherein the single-segment construction method comprises the steps of S100, construction preparation, S200, side main beam installation, S300, cross beam installation, S400, small longitudinal beam installation, S500, segment measurement and adjustment, S600, high-strength bolt construction, S700, side main beam top plate welding, S800, anticorrosive paint coating, S900, stay cable hanging and initial tensioning and S1000, bridge deck slab hoisting. The steel beam segments are divided into a plurality of modules which can be spliced and connected, such as the side main beams, the cross beams and the small longitudinal beams, and are temporarily fixed through hoisting alignment and temporary bolts, so that segment measurement and overall adjustment can be uniformly implemented after the side main beams, the cross beams and the small longitudinal beams are spliced, and the linear control precision and the overall splicing stability are remarkably improved.

The invention belongs to the technical field of crawler belt moving platforms, and particularly relates to a single-section crawler belt moving platform which comprises a vehicle body, a vehicle head, a crawler belt driving motor, a steerable crawler belt, a driving belt wheel transmission structure, a driving belt wheel, a driven belt wheel, a driving belt wheel shaft, a driven belt wheel shaft, a steering driving motor and a steering transmission structure. The steerable crawler belt is integrally arranged on the outer side of a whole formed by the vehicle body, the vehicle head, the steering transmission structure, the driving belt wheel and the driven belt wheel in a sleeving mode, and the driving belt wheel and the driven belt wheel are meshed with tooth-shaped faces on the inner sides of annular grooves of the steerable crawler belt respectively. A plurality of V-shaped steering notches are evenly formed in the peripheral edges of the two sides, in the length direction, of the steerable caterpillar band respectively. The vehicle head of the single-track moving platform can rotate relative to the vehicle body, steering of the single-track moving platform is achieved, operation is stable and reliable, the requirements for miniaturization and light weight of detection robots in narrow and complex space after disasters are better met, and the application occasion is wider.