76results about How to "Reduce the degree of difficulty" patented technology

The invention relates to the technical field of ship machining, in particular to a method for drawing a hull section margin line. The method includes the following steps of conducting calculation, wherein the theoretical data values of required points are found out on a hull section; arranging a station, wherein a total station is erected; drawing a frame line; drawing points, wherein the actual positions of the required points on the hull section are found out through the total station and connecting the points into a line, wherein all the points found out on the hull section are connected in a smooth mode. By means of the method, drawing of the section margin line can be finished quickly, and meanwhile the hoisting time is reduced.

The invention discloses a project cost management system based on big data. The project cost management system comprises a distributed database, a construction decision analysis module, a project screening and matching module, a resource scheduling module, a management server and a service statistics module, wherein the management server is respectively connected with the construction decision analysis module, the project screening and matching module, the distributed database and the resource scheduling module, and the resource scheduling module is respectively connected with the project screening and matching module and the service statistics module. According to the invention, the construction decision analysis module, the project screening and matching module, the resource scheduling module and the service analysis module are combined with the management server, the completed engineering project with the maximum coincidence degree coefficient with the inputted project engineering is screened, and the process prediction difficulty coefficient and the prediction comprehensive engineering difficulty coefficient corresponding to each construction process in the inputted project engineering are counted to obtain the engineering cost corresponding to the engineering project, so that the accuracy of the engineering cost statistics is improved, and the stable and high-speed development of the building industry is promoted.

The invention discloses an automated stream line article sorting device for intelligent logistics. The automated stream line article sorting device for the intelligent logistics structurally comprisesa first identification code reading device, an installing plate, a second identification code reading device, storage boxes and a conveyor, wherein the storage boxes arranged at equal intervals are evenly distributed on the conveyor. Compared with the prior art, the automated stream line article sorting device for the intelligent logistics has the beneficial effect of by arranging a hinge inner box, telescopic mechanisms, an outer box, two step holes and threaded heads in a combination mode and based on the principle that like poles repel and opposite poles attract of a magnet, enabling all groups of the telescopic mechanisms to be dismountable, simple to install and dismount and high in installation and dismounting efficiency, achieving detachable connection between the hinge inner box and the outer box, enabling the hinge inner box to rise and fall, only needing to replace one group of the telescopic mechanisms and having no need for replacing all the telescopic mechanisms if the group of the telescopic mechanisms is damaged, reducing maintenance cost, being convenient and fast in replacement, low in difficulty coefficient and capable of effectively preventing a spring ring fromprotruding when a spring is compressed, effectively preventing deforming damage from being caused to the inner spring, and facilitating prolonging of use life of the inner spring.

The invention discloses a guidance landing system for an aircraft horizontal trajectory ship landing mode, and a method thereof. The guidance landing system comprises a green signal lamp, an orange signal lamp, a red signal lamp and a rangefinder which are arranged on a ship deck. The green signal lamp is arranged at the tail of the ship deck. The orange signal lamp, the red signal lamp, the rangefinder and the green signal lamp are sequentially arranged on the deck. The rangefinder is electrically connected with the red signal lamp through a controller. An aircraft landing point is located between the green signal lamp and the orange signal lamp. According to the guidance landing system for the aircraft horizontal trajectory ship landing mode, and the method thereof, the easier-to-operatetrajectory of the aircraft landing on the ship is put forward, and through guidance of the guidance landing system for the aircraft horizontal trajectory ship landing mode, the difficulty coefficientof aircraft landing is decreased, physical strength and energy effort of an aviator is reduced, the psychological pressure borne by the aviator and the operation difficulty are reduced, the flight quality is improved advantageously, and the flight safety factor is increased advantageously.

The invention claims a device for simulating combined dynamics of a freight train and a simulation method thereof; the device for simulating combined dynamics of a freight train comprises a memory for storing the simulation program of the combined dynamics of the freight train, a display device for displaying the simulation result and analyzing the combined dynamic, an input device for inputting the external operation order, and a processor for the calculation and the output of the simulation program of the combined dynamics of the freight train; and the memory, the display device, the input device are separately connected to the processor. The invention further claims a simulation method of a device for simulating combined dynamics of a freight train. The device for simulating combined dynamics of a freight train and a simulation method thereof provided in the invention can provide the simulation calculation environment of the combined dynamics of the freight train using the simulation way so as to calculate and analyze the combined dynamics of the freight train.

The invention discloses a rapid excavation method of a suspension bridge tunnel anchor. The method is used for blasting excavation of a mountain rock stratum, and comprises the following steps: dividing a first tunnel into a plurality of first sections in advance, equally dividing each first section into a first arc part and a first bottom, and performing two-step blasting excavation on every first section, wherein the first arch part is excavated forwards for M times in sequence according to the inclination angle of the first section, and then the first bottom is excavated downwards for one time; and dividing a second tunnel into a plurality of second sections in advance, equally dividing each second section into a second arch part and a second bottom, and performing two-step blasting excavation, wherein the second arch part is excavated forwards for N times in sequence according to the inclination angle of the second section, and then the second bottom is excavated downwards according to the section of the second section; and M and N are natural numbers, and the second tunnel is communicated with the first tunnel, and the section and inclination angle of the second tunnel are larger than those of the first tunnel. The method is suitable for large-section and large-inclination-angle tunnel type anchors, rapid construction can be achieved, and the construction period is shortened.

The invention relates to the technical field of machinery, in particular to a self-locking hydraulic jack with a two-way action. The jack comprises a cylinder body, a cavity is formed inside the cylinder body, a piston is arranged in the cavity, a guiding ring is arranged between the piston and the cylinder body, a nut sleeves the outer periphery of the cylinder body, an oil inlet hole is formed in one side surface of the cylinder body, an oil return hole is formed in the other side surface of the cylinder body, an oil passing hole is formed in the inside of the cylinder body, and the oil passing hole and the oil return hole are communicated. According to the jack, a traditional self-locking jack structure form is improved, the mechanical self-locking jack can make the piston move in two directions through the oil pressure of the oil inlet hole and the oil return hole, which not only reduces the difficulty coefficient of oil return of the jack during construction, but also increases the service life of the jack, the entire jack is compact in structure and reasonable in layout, and there is no effect on the space used by the jack.

Disclosed is a microstructural plasma device based on a printed circuit board process. A microcavity of the device is composed of an upper electrode, a middle medium layer and a lower electrode. Each unit of the device is driven by the upper electrode and the lower electrode. A substrate is made of insulating medium epoxy resin materials. Two layers of copper foil are manufactured on the upper surface and the lower surface of the substrate. Certain safe distances are reserved between the edges of the layers of copper foil and the edge of the substrate. The cylindrical microcavity semi-through hole units are arranged in an array mode. Microcavity semi-through holes just penetrate through the upper electrode and do not penetrate through the middle medium layer and the lower electrode. In the array, the distances between rows are not smaller than those between columns. The two layers of copper foil which are separated by the substrate are used as the upper electrode and the lower electrode, the two electrodes are respectively led out of amphenol connectors, and the coplanar-type microstructural plasma device based on the printed circuit board process is obtained.

The invention provides a three-dimensional four-way liquid pipe connector convenient to weld. The three-dimensional four-way liquid pipe connector comprises a first connection pipe, a second connection pipe, a third connection pipe, a fourth connection pipe, elastic bodies and air connectors. The first connection pipe and the second connection pipe are located on the same central axis. The third connection pipe is perpendicular to the first connection pipe and the second connection pipe. The fourth connection pipe is perpendicular to the third connection pipe. The elastic bodies are arranged on the inner wall of the first connection pipe and the inner wall of the second connection pipe. The air connectors are movably connected with the elastic bodies. The third connection pipe is a welding connection pipe and is internally provided with a hollow cylinder, the inner wall of the hollow cylinder is provided with a plurality of curved surfaces, and a step is arranged at the junction of every two adjacent curved surfaces and provided with a plurality of closely-arranged raised lines. The three-dimensional four-way liquid pipe connector convenient to weld has the characteristics of being good in sealing performance, high in strength, low in welding difficulty coefficient and high in practicality.

The invention provides a treatment device for recycling micro-invasive excavation multi-medium subsurface leachate as water for cultivation. The treatment device is characterized in that an auxiliary device and a water distribution device are connected above a water collecting device with a height difference of 3 meters; the structure of the auxiliary device is that compound calcium carbonate particles are filled between two layers of wire entanglements; the water distribution device is composed of a plurality of water distribution tanks arranged in parallel, a composite geo-membrane is laid on the inner periphery of each water distribution tank, the composite geo-membrane is filled with gravel, a water distribution pipe is buried in the gravel and a water hole is formed in the wall of the water distribution pipe; each water distribution tank has a slope; the water collecting device is composed of a plurality of water collecting tanks arranged in parallel and the water collecting tanks are filled with gravel; a water receiving pipe is laid in parallel with the water distribution tanks and a water hole is formed in the wall of the water receiving pipe; the water receiving pipe has a slope; one end of each water distribution pipe in the water distribution device is connected with a water inlet pipe, and the other end of the corresponding water inlet pipe of the water receiving pipe in the water collecting device is connected with a water outlet pipe; the water outlet pipe is connected with a collecting basin, a submersible sewage pump of the collecting basin is connected to a return pipe, and the return pipe is connected to the auxiliary device.

The invention relates to a horizontal axial perforating or grooving device for a long-axis ceramic pipe and a use method thereof. The device comprises a fixing mechanism for the long-axis ceramic pipe, a perforating or grooving mechanism, a limiting mechanism and an axial moving mechanism, wherein the perforating or grooving mechanism penetrates the limiting mechanism and keeps a drill bit assembly horizontal under the supporting of the limiting assembly; the perforating or grooving mechanism rotates within perforating or grooving mechanism rotating range limited by the limiting mechanism andcan be driven to axially move along the long-axis ceramic pipe through the axial moving mechanism so as to realize accurate perforating without any deviation, and the problem that the deviation is obvious as the length of the perforating or grooving mechanism increases can be avoided. According to the device, the long-axis ceramic pipe which is more than 1.5m and even up to 3m in length is deeplyhorizontally perforated; the existing circumstance that such ceramic pipe is deeply perforated through a vertical perforating machine after cumbersome upright keeping work can be changed; the workingdifficulty and the danger coefficients of operators can be greatly decreased; and the working efficiency is greatly improved.

The invention discloses abridge pier detection robot, and relates to the technical field of detection equipment, the bridge pier detection robot comprises a support frame, a first crawling structure, a detector and at least one second crawling structure, the support frame is used for sleeving the outer side of a to-be-detected bridge pier, and the first crawling structure and the second crawling structure are both arranged on the support frame; the detector is arranged on the first crawling structure, the detector is used for detecting a to-be-detected bridge pier, the first crawling structure drives the detector to move in the first direction, and the second crawling structure drives the supporting frame, the first crawling structure and the detector to move in the second direction. According to the bridge pier detection device, the to-be-detected bridge pier is sleeved with the supporting frame, the detector detects the to-be-detected bridge pier in the first direction and the second direction, comprehensive detection of the bridge pier is achieved, the difficulty coefficient during bridge pier detection is reduced, and the working efficiency is improved.