35 results about "Spiral trajectory" patented technology

The invention relates to the technical field of industrial water treatment equipment, and discloses an intelligent flushing self-cleaning filter system for industrial water treatment. A dynamic suspended matter monitoring module of the system collects three-dimensional distribution data of deposits on the surface of a filtering medium in real time, and mixed deposition characteristics of suspended solids and oil stains are recognized through a multispectral imaging technology; the differential pressure trigger control module establishes a mapping relation between sediment thickness and fluid resistance according to the three-dimensional distribution data, and generates a cleaning trigger instruction when the real-time differential pressure data reaches a dynamic threshold interval; the spiral trajectory planning module analyzes the cleaning trigger instruction, and generates a composite motion trajectory containing a rotation angular velocity and an axial displacement rate in combination with the current position of a suction nozzle and a filter screen topological structure; the multi-mode flushing execution module synchronously adjusts torque output of a hydraulic motor and linear displacement of a piston cylinder based on the composite motion trail, so that a suction nozzle covers the whole effective filtering area of a filter screen along a spiral path.

The invention belongs to the technical field of gas-liquid separation, and discloses a conical double-spiral-channel cyclone separation structure and application, the conical double-spiral-channel cyclone separation structure comprises a separator cylinder, a conical separation device, a medium tangential inlet, a transition guide device, a gas outlet and a liquid outlet; the conical separation device is arranged in the separator cylinder and is of an inner and outer double-spiral structure; a medium tangential inlet is formed in the upper part of the separator barrel and is communicated with the conical separation device; a transition guide device is arranged at the lower part of the conical separation device and is used for medium transition from outside to inside of the conical separation device; and the top and the bottom of the separator cylinder are respectively provided with a gas outlet and a liquid outlet. According to the invention, a conical inner and outer double-spiral body is designed, so that a medium advances along a set spiral track after entering the separation device, and the arrangement of the double-spiral body realizes twice gas-liquid spiral separation under the condition that the equipment size is not changed.

The application relates to a path tracking method, device and storage medium. The method comprises the following steps: determining a pre-look distance; determining at least two reference points in path points of a planned path according to the pre-look distance; in response to the transverse error and the heading error of the at least two reference points not satisfying a preset condition, generating an Euler spiral trajectory table; determining a target column with the minimum current curvature difference value in the Euler spiral trajectory table; establishing an Euler spiral starting point coordinate system with each trajectory point in the target column as a starting point; determining the sum of tracking errors of the at least two reference points in the Euler spiral starting point coordinate system; when the sum of the tracking errors of the at least two reference points takes the minimum value, determining a target curvature change rate; and determining a front wheel steering angle according to the target curvature change rate, the front wheel steering angle being used for controlling vehicle steering to perform path tracking. The embodiment scheme can improve path tracking precision and control the vehicle to gently follow or approach the planned path.

The application provides a flexible flagellum-driven swimming micro-nano robot and a control method thereof, and relates to the technical field of micro-nano robots.The robot comprises a head and a flexible flagellum, the inside of the head is provided with a control component, a monitoring component, a driving component and a power source, the driving component is connected with the flexible flagellum, and the method comprises the following steps: a control chip reads chemical concentration or light field intensity information detected by an environmental sensor; the collected chemical concentration or light field intensity information is compared with historical time information; the driving frequency of a micro-actuator is switched according to the comparison result; and the swimming micro-nano robot is driven to swim.The application fully utilizes the complex fluid-structure coupling behavior between the flexible flagellum and the fluid, does not need a complex steering mechanism, only needs simple information storage and logical judgment to change the swing frequency of the flagellum, and can realize the autonomous navigation movement of the micro-nano robot in a complex environment, and gradually approaches the target along a variable-parameter spiral trajectory.

The utility model belongs to the technical field of shower equipment, and particularly relates to a shower pedestal lifting device and a shower. The device comprises a sliding rod assembly, the sliding rod assembly comprises a sliding rod body and a rotating shaft rotationally installed in the sliding rod body, and a two-way spiral groove is formed in the rotating shaft; the driving assembly is mounted at one end of the sliding rod assembly and is in transmission connection with the rotating shaft; the shower head seat assembly comprises a shower head seat body and a rotating block mounted on the shower head seat body; wherein the shower pedestal body is mounted on the sliding assembly in a sleeving manner, and lifting of the shower pedestal assembly is realized through cooperation of a rotating block and a two-way spiral groove in a rotating shaft; and the switch assembly is installed on the sliding rod body, electrically connected with the driving assembly and used for controlling the driving assembly to be opened and closed. According to the lifting device, through the precise matching design of the bidirectional spiral groove and the rotating block, the shower pedestal assembly can ascend and descend according to the spiral track, and stepless ascending and descending and more precise height control are achieved.

The utility model discloses a kind of high-efficiency heat exchanger reinforced turbulent flow guide components, it is related to flow guide component technical field, including flow guide pipe, the inner wall of flow guide pipe is equipped with several installation grooves, the inside fixed connection of installation groove has several turbulence components, guide component is arranged between installation groove, the guide component includes spiral vane, the center of spiral vane is equipped with resistance-reducing passage, the surface of spiral vane is equipped with several resistance-reducing holes, the position of spiral vane close to turbulence component is equipped with turbulence passage, the utility model can effectively promote fluid to flow along spiral trajectory by the spiral structure of spiral vane, increase the disorder degree of fluid, simultaneously, by the setting of turbulence plate, the laminar flow structure of fluid can be locally destroyed, so that fluid presents more turbulent flow, turbulent flow by improving the irregularity of fluid flow, make the heat exchange between fluid more frequent, improve the heat exchange effect of device.

An intraocular lens the optical power map of which comprises at least one spiral track. There are at least a first and a second cross section of the spiral track the dioptric range of each of which is at least 0.5 dioptre. The average optical power of the first cross section is at least 0.5 dioptre apart from the average optical power of the second cross section.

The invention discloses a profiling meshing driven steel wire rope climbing robot and an active brake control method. The robot comprises a split type rack assembly, a driving system, a pressing system and a control system. A concave contour surface and a plurality of meshing convex points distributed according to a spiral track are arranged on the outer circumferential surface of a profiling meshing type concave wheel of the driving system, so that the convex points are accurately embedded into strand gaps of the steel wire rope to form mechanical interlocking transmission, and the problem of slipping in an oil contamination environment is fundamentally solved. The pressing system adopts a floating support with an elastic element and a plurality of pressing wheels, and self-adaptive constant-force clamping is achieved. The control system monitors the motion state in real time through the speed detection module, and the control unit actively triggers the independent braking module to implement emergency braking when recognizing early out-of-control characteristics such as continuous deviation of the speed or abnormal acceleration, so that an accident is restrained in the bud state. According to the invention, mechanical meshing driving without transforming the steel wire rope is realized, and the device has high load capacity, strong environmental adaptability and an active safety protection function.

The invention relates to a quick positioning rivet welding tool for butt welding of a flange and a pipe. The quick positioning rivet welding tool comprises a lifting table and a control unit. The control unit is fixedly connected with the moving block through a bearing plate and comprises a shaft pipe and a driving piece arranged at the tail end of the shaft pipe, a pipe locking structure used for clamping the heat exchange pipe is arranged at the front end of the shaft pipe, and the axial direction of the shaft pipe is arranged in the width direction of the sliding way; and the driving piece drives the shaft tube to rotate along the axis of the shaft tube and to do translational motion along the axis direction, so that the heat exchange tube moves along a spiral track. By means of spiral track movement, static friction between the heat exchange tube and a flange hole wall is reduced in a rotating mode in the penetrating process, thrust needed by linear propulsion is reduced, and therefore equipment energy consumption and mechanical loss are reduced, meanwhile, tube body scratching or hole wall deformation is avoided through dynamic contact, positioning precision and rivet welding quality are improved, and the device is particularly suitable for multi-hole-site dense assembly scenes.

The utility model discloses a winding type tension uniform adjusting device for crochet rope production, which comprises a winding mechanism and an adjusting mechanism, and the winding mechanism comprises a frame, a motor connected with the bottom of an inner cavity of the frame, and a wire spool connected with an output shaft of the motor. According to the utility model, after the two sections of the cellosilk are fixed, the motor drives the wire spool to rotate, and the multiple strands of cellosilk are uniformly wound in a spiral track; in the winding process, the diameter of the bobbin is gradually reduced along with fiber consumption, and a pressure sensor in the guide wheel frame detects the tension change in real time and transmits data to an external PLC (Programmable Logic Controller); the PLC analyzes the tension data based on a preset algorithm, and synchronously executes two controls: one is to calculate the expansion and contraction amount of the micro electric push rod, drive the sliding piece to axially move along the air pressure damper, dynamically reduce the winding radius through the guide wheel frame and maintain the linear speed constant, and the other is to dynamically adjust the rotating speed of the output shaft of the motor to further balance the tension fluctuation.

This invention provides a shot peening strengthening process for improving the surface hardness of precision long shaft parts, belonging to the field of precision machining technology. The invention involves pre-treating the surface of the precision long shaft part, establishing a discrete mesh model of the long shaft and collecting initial residual stress distribution data, activating an online dynamic load compensation support system to control the axial runout within a threshold range, and driving the spray gun to perform continuous shot peening along a spiral trajectory based on the process timing parameters output by the physical information-constrained spatiotemporal jump graph attention model. The invention also utilizes a multi-channel acoustic emission signal sequence to output real-time predicted values ​​of the residual stress field, inputting these predicted values ​​into a shot peening strengthening process game-theoretic control model to drive a follow-up reverse hydraulic straightening device to actively suppress bending deformation and perform supplementary shot peening on areas that do not meet the standards. This solves the technical problem of difficulty in real-time suppression of bending deformation caused by uneven residual stress field distribution during the shot peening strengthening process of precision long shaft parts.

The application belongs to the technical field of steel wire rope detection, and specifically discloses a marine steel wire rope detection device, which comprises a needle bearing and a rotating drum rotatably arranged in the needle bearing, further comprises a variable-pitch adjusting mechanism symmetrically arranged in the rotating drum, a radial synchronous adapting mechanism symmetrically arranged outside the rotating drum, and an external gear ring threadedly arranged at the front end of the rotating drum, each variable-pitch adjusting mechanism comprises a plurality of universal bull's eye wheels arranged along the axial direction of the rotating drum, and a distance measuring sensor for detecting the relative position change between the adjacent universal bull's eye wheels is arranged between the adjacent universal bull's eye wheels. The radial synchronous adapting mechanism is used for pressing the bull's eye wheels into the grooves between the strands of the steel wire rope, and through the axial relative movement between the device and the steel wire rope, each bull's eye wheel is limited by the support of the needle bearing and rotates adaptively along the spiral track of the groove between the strands, and any uneven change of the gap between the strands will be directly converted into the measurable relative displacement of the bull's eye wheel in the axial position, so that the automatic detection of the lay length parameter is realized.

The invention belongs to the technical field of steel wire rope detection, and particularly discloses a maritime work steel wire rope detection device which comprises a needle bearing and a rotary drum rotationally arranged in the needle bearing. The variable-pitch adjusting mechanisms are arranged in the rotary drum in a central symmetry mode, the radial synchronous adaptation mechanisms are arranged outside the rotary drum in a central symmetry mode, the outer gear ring is arranged at the front end of the rotary drum in a threaded and sleeving mode, and each set of variable-pitch adjusting mechanism comprises a plurality of universal bull eye wheels arranged in the axial direction of the rotary drum; a distance measuring sensor used for detecting changes of relative positions of the universal bull eye wheels is arranged between every two adjacent universal bull eye wheels. According to the device, the bull eye wheels are pressed into the inter-strand grooves of the steel wire rope through the radial synchronous adaptation mechanism, through axial relative movement of the device and the steel wire rope, the bull eye wheels rotate in a self-adaptive mode along with the spiral tracks of the inter-strand grooves under supporting and limiting of the needle bearings, any uneven change of inter-strand gaps is achieved, and the steel wire rope can be driven to rotate in a self-adaptive mode. And the displacement is directly converted into measurable relative displacement of the bull eye wheel in the axial position, so that automatic detection of lay length parameters is realized.

The application belongs to the technical field of profile guiding, and discloses a positioning and guiding machine for profile machining, which comprises a plurality of passive rollers, a correction mechanism arranged between two adjacent passive rollers and used for assisting the passive rollers in guiding and conveying a coiled profile, and a driving mechanism in transmission connection with the correction mechanism and used for driving the correction mechanism to actively correct the posture of the profile. The correction mechanism comprises a sleeve roller in winding connection with the surface of the profile, a plurality of protrusions uniformly embedded in the sleeve roller along a spiral track, an air bag sleeved in the sleeve roller, and guide fences arranged at both ends of the sleeve roller. The guide fence comprises guide rods fixed to the inner wall of the sleeve roller and arranged in an array along the circumference of the sleeve roller, and a plurality of supporting plates movably sleeved on the guide rods at both ends. The above technical solution can correct the profile without stopping the machine, and can effectively protect the edge of the profile from being damaged during correction.

The application provides a kind of multi-layer energy dissipation structure's water passing bridge pile foundation anti-scour device and method, it is related to bridge foundation engineering technical field, including pile foundation, inner sleeve and outer sleeve, the lateral wall of inner sleeve is equipped with a plurality of first flow guide holes;The lateral wall of outer sleeve is equipped with a plurality of second flow guide holes;A plurality of second flow guide holes are arranged along the first helix line of the cylinder wall of outer sleeve, and the connecting line of the center of a plurality of second flow guide holes forms the first spiral track along the circumference of outer sleeve;A plurality of first flow guide holes are arranged along the second helix line of the cylinder wall of inner sleeve, and the connecting line of the center of a plurality of first flow guide holes forms the second spiral track along the circumference of inner sleeve;The spiral direction of first spiral track is opposite to the spiral direction of second spiral track.The application solves the problems of low energy dissipation efficiency and poor jet interference effect of the bridge pile foundation anti-scour device in the prior art.

The invention discloses a variable-speed turning system which comprises a speed change mechanism, a turning mechanism and a workpiece pressing mechanism. The speed change mechanism comprises a motor, a driving disc, a friction wheel and a driven disc; the output end of the motor is connected with the driving disc, the friction wheel is arranged between the driving disc and the driven disc, the transmission shaft is installed in the center of the driven disc, the friction wheel moves in the radial direction of the driving disc and the driven disc and controls the rotating speed of the driven disc and the transmission shaft, and the turning mechanism is installed on the transmission shaft and driven by the transmission shaft to machine workpieces. Variable speed driving, clutch switching, a turning mechanism and a workpiece clamping mechanism are integrated. According to the device, friction transmission and clutch control can be utilized, rapid switching of a turning tool between a circumferential track and a spiral track is achieved, and meanwhile efficient and automatic clamping of a workpiece is achieved through a bevel gear-rack-pressing plate combined clamping structure.

Provided is a ball screw where a three-dimensionally formed recirculation trajectory of a recirculation groove can be connected to a helical trajectory in such a manner that the tangential directions thereof are substantially continuous. A ball screw (1) includes: a ball screw shaft (2) including a helical groove (2a); a ball nut (3) including a helical groove; and a plurality of balls (4) placed between the helical groove (2a) of the ball screw shaft (2) and the helical groove of the ball nut (3). The ball nut (3) is provided with a recirculation groove that is connected to one end and the other end of the helical groove of the ball nut (3) to recirculate the balls (4). A recirculation trajectory (8) of the recirculation groove is formed on the basis of a groove cross-sectional trajectory curve representing a trajectory along which the balls (4) are recirculated in a groove cross-section of the ball screw shaft (2), and a longitudinal trajectory curve representing a trajectory along which the balls (4) are recirculated in a virtual plane where a trajectory length ω of the groove cross-sectional trajectory curve is an H-axis and a helical trajectory length Fv(ω) is a V-axis.

The invention discloses a laser processing method and equipment, and the laser processing method comprises the steps: determining a first spiral scanning starting point through the center coordinate and size of a to-be-processed hole, and determining a first spiral processing path through the first spiral scanning starting point, the number of spiral processing circles, the distance between the spiral processing circles and other parameters; and obtaining the end point of the second spiral machining path through the first spiral machining path, and further obtaining the second spiral machining path. And when laser scanning is controlled, scanning is conducted in sequence along the first spiral machining path and the second spiral machining path from the first spiral scanning starting point, and a machined hole is formed. By means of the double-spiral-track machining mode, energy of laser spots is evenly distributed in the machining process, so that the bottom of a machined hole is flat and smooth, the quality of the machined hole is improved, meanwhile, no redundant skipping movement exists in the double-spiral-track machining mode, and the machining efficiency is improved.

The present application relates to a kind of complex surface grinding and polishing path planning method.Compared with the existing spiral trajectory planning method for complex hole surface, the method directly generates a non-bridging spiral trajectory to cover the entire three-dimensional hole surface, which avoids the problem of large amount of bridging between sub-regions caused by sub-region division, the generated spiral trajectory path is shorter, smoother, and the trajectory spacing is more consistent, and avoids the discontinuity and sharp turning of the trajectory, so that the motion path of the actuator is more smooth, the number of path discontinuities is also reduced, thereby avoiding the processing time and workpiece surface impact marks caused by tool lifting and actuator turning, therefore, the method generates trajectory for 3D surface grinding and polishing processing will improve 3D surface grinding and polishing processing efficiency and quality, reduce processing cost, improve tool and robot service life, with obvious economic significance.

The invention relates to a data processing method for spiral aeromagnetic detection, and the method comprises the steps: obtaining data: collecting a detection signal through an optical pumping magnetometer when an unmanned plane flies in a spiral track; a data preprocessing step: performing fractional order Fourier transform on the detection signal, mapping the detection signal to each fractional order domain, and determining an optimal order by using a particle swarm search method; and a noise suppression step: in the fractional domain of the optimal order, detecting an impulse function peak value by using a moving median filtering method, marking an abnormal value based on a median, and performing zero setting to obtain a filtered signal. According to the invention, the specific dynamic noise of the spiral track is effectively suppressed, and the signal-to-noise ratio is improved.

The invention relates to the technical field of numerical control cutter design and manufacturing, and discloses a multi-arc milling cutter parameterization design method which comprises the following steps: acquiring a milling cutter design contour and constructing discrete curvature field data; calculating a local helical angle based on the discrete curvature field, and calculating a local radial rake angle according to the cutting linear velocity; according to the section bending modulus constant constraint, the core thickness radius is calculated according to the local helix angle and the radial rake angle so as to compensate the section rigidity loss; monitoring the axial change rate of the helical angle and superposing the differential phase offset in an area with a relatively large change rate to generate a helical trajectory of the cutting edge; and the above parameters are combined with grinding wheel geometry to execute inverse kinematics and three-dimensional entity interference detection, and an interference-free numerical control machining program is generated. According to the method, collaborative optimization of the cutting performance, the structural rigidity and the anti-vibration performance of the multi-arc milling cutter is achieved by establishing a coupling model of geometry, dynamics and structural parameters.

The application discloses a balancing device for detecting the balance degree of a center plate of an automobile and belongs to the field of automobile detection devices.The balancing device comprises a supporting cavity, a center plate clamping cavity is symmetrically and rotationally connected to the upper surface of the supporting cavity, a transmission tooth is fixedly connected to the outer side wall of the center plate clamping cavity, a sliding groove is formed in the upper surface of the supporting cavity, a supporting sliding cavity is slidably connected to the inside of the sliding groove, and a motor one is fixedly connected to the upper surface of the supporting sliding cavity.The device is driven to rotate by a motor three in the center plate clamping cavity, the spiral track of an angle groove forces a supporting sliding column to drive a supporting clamping ring to synchronously expand / contract, different inner diameters of the center plate can be automatically adapted, and manual adjustment is not needed.When the supporting clamping ring is completely in contact with the inner ring of the center plate, a pressing wedge pushes a contact wedge to overcome the pre-tightening force of a spring two and is received in a clamping groove, so that the friction force between a hollow plate and the inner wall of a hollow cavity disappears.

The invention belongs to the technical field of constructional engineering, and relates to a threaded pile drill bit and a drilling method thereof.When the threaded pile drill bit falls to the bottom of a straight pile hole, a sleeve moves upwards under the action of gravity to compress a lower ejector rod spring to drive a hanging nose to move upwards, the hanging nose touches a hook to enable the hook to rotate, and meanwhile an upper ejector rod spring is compressed; elastic force is used for locking; meanwhile, the connecting plate B pushes the spiral pin to extend out of the straight cylinder, and elastic force is used for locking, so that threads are conveniently cut in a straight pile hole when the threaded pile drill bit rotates and moves upwards; the threaded pile drill bit cuts the edge of the straight pile hole in the rotating process, meanwhile, the drill bit is lifted to form a spiral track, and a spiral pile hole is formed by controlling the speed of the drill bit.

The invention provides an axle repairing method and an axle, and relates to the technical field of axle repairing. The method comprises the following steps: irradiating a laser beam on the surface of a to-be-repaired part of the axle wheel seat to form a molten pool; alloy steel powder is added into the molten pool through a cladding head; the axle is controlled to rotate at the preset rotating speed, the cladding head is controlled to do translational motion in the axial direction of the axle at the preset speed, and cladding is conducted on the inner edge of the to-be-repaired part from the outer edge of the to-be-repaired part in a spiral track; when cladding is carried out to the inner edge, cladding is carried out again from the outer edge to the inner edge in a spiral track, and cladding is repeated for multiple circles; cladding the outer edge of the axle rotating shaft and the two sides of the axle key groove to form a first cladding layer; and the steps are repeated, and laser beams are adopted to irradiate the first cladding layer to continuously form the multiple cladding layers. Through the technical means, the problems of resource waste and high replacement cost caused by axle damage in related technologies are solved.

The invention provides a moving micro-nano robot driven by a flexible flagellum and a control method of the moving micro-nano robot, and relates to the technical field of micro-nano robots, the robot comprises a head and the flexible flagellum, the head is internally provided with a control assembly, a monitoring assembly, a driving assembly and a power source, the driving assembly is connected with the flexible flagellum, and the power source is connected with the flexible flagellum. The method comprises the steps that the control chip reads chemical concentration or light field intensity information detected by the environment sensor, the collected chemical concentration or light field intensity information is compared with historical moment information, the driving frequency of the micro-actuator is switched according to the comparison result, and the swimming micro-nano robot is driven to swim. According to the method, the complicated fluid-solid coupling behavior between the flexible flagellum and the fluid is fully utilized, a complicated steering mechanism is not needed, and the autonomous navigation movement of the micro-nano robot in a complicated environment can be realized only by changing the swinging frequency of the flagellum through simple information storage and logic judgment; and gradually approaching the target along a variable-parameter spiral track.

The utility model relates to the technical field of automation equipment, in particular to a sliding type spiral hanger structure which comprises a spiral track and a transferring structure assembled with the spiral track in a sliding mode. In the working process, the transferring structure conveys materials to be moved along the spiral track of the spiral track; according to the sliding type spiral hanging frame structure, the transferring structure is adopted for transferring type transportation, various materials can be hoisted and transferred according to needs, the materials are accurately conveyed to different floors in cooperation with the spiral rising type spiral track, and cross-floor transportation is achieved; compared with an existing mode that a horizontal conveying line is adopted, the structure is compact, the occupied site space is small, a plurality of needed operation stations can be arranged at different height positions of the spiral track, vertical conveying in a narrow space is achieved, the plant space requirement is lowered, and the adaptability of equipment is improved.

The invention provides an incremental forming machining surface quality optimization method, and belongs to the technical field of metal plate incremental forming, and the method comprises the steps: constructing a corresponding CAD three-dimensional model according to the geometrical characteristics of a target workpiece, and generating a contour line track from top to bottom; spiral trajectories between the adjacent contour lines are obtained, and all the spiral trajectories are spliced into a continuous spiral line path; and the continuous spiral line path serves as the machining path of the forming tool head, and the machining task of the target workpiece is executed through the segmented machining strategy. Based on the layering manufacturing principle, firstly, a basic contour line track is generated according to geometrical characteristics of a to-be-machined target workpiece; and then the adjacent layers of tracks are smoothly connected, a continuous spiral line path is designed, the continuous spiral line path serves as a machining path of a forming tool head, tool feeding marks generated in the machining process of the target workpiece are eliminated, and the surface quality of a formed part is improved.

The embodiment of the invention provides a multi-spiral tunnel section profile blasting excavation method and system based on dynamic adjustment, and the method comprises the steps: determining a plurality of tunnel face sections of a multi-spiral tunnel according to a multi-spiral tunnel geometric model; and dividing the section of the target tunnel face into a plurality of sub-regions based on the spiral track characteristics of the multi-spiral tunnel, and determining the blasting contour line of each sub-region. And according to the rock mass category, the stress state and the spiral change trend of each sub-region, determining blasting material holes of each sub-region. And according to the blasting material type corresponding to each sub-area and the charging structure, blasting material charging is conducted, and blasting operation is conducted on the cross section of the target tunnel face according to preset blasting time sequence parameters. And after blasting operation is completed, according to the deviation result of the collected actual contour data of the multi-spiral tunnel and the designed contour data of the multi-spiral tunnel, the blasting parameters adopted by the section of the next tunnel face are adjusted. Therefore, the continuity and stability of the profile of the section of the multi-spiral tunnel in the construction process are improved.

The invention relates to the technical field of construction engineering, and particularly discloses a construction engineering crack detection device and method. The climbing structure is mounted on the base; the first moving assembly is mounted on the climbing structure; the surrounding assembly is mounted on the first moving assembly; the second moving assembly is mounted on the encircling assembly; the detection assembly is mounted on the second moving assembly; according to the construction engineering crack detection device and method, the first moving assembly is based on a climbing structure, the rotating motion of the first driving device is converted into the vertical linear motion of the mounting shell along the guide rail through worm and gear transmission, and the second moving assembly is connected with the mounting shell through the whole circular gear ring formed by splicing the surrounding assemblies. The second driving device drives the driving gear to rotate to realize the circular motion of the moving shell around the stone column, so that the two cooperate to enable the detection assembly to form a spiral track to completely cover the outer peripheral surface of the stone column, the missing detection is avoided, the manual intervention is reduced, and the detection efficiency and accuracy are improved.