108results about How to "Guaranteed to pass through" patented technology

The invention discloses a skin-core structured polyurethane elastic fiber preparation method. By adjustment of types and contents of skin and core layer spinning solution auxiliary agents, the auxiliary agents are enriched on a skin layer, and improvement of fiber environmental tolerance, changing of fiber surface properties and reduction of auxiliary agent utilization cost are realized. Skin-corestructured polyurethane elastic fiber preparation is characterized by including steps: 1) preparing N,N-dimethylacetamide solution of polyurethane-polyurea, aging to obtain core layer spinning solution, adopting a spinneret plate for spin stretching, and performing high-temperature drying through a first passage to obtain core layer polyurethane elastic fibers; 2) taking part of polyurethane-polyurea solution, and adding auxiliary agents for improvement of fiber environmental tolerance or changing of fiber surface properties to obtain skin layer spinning solution, coating the core layer fibersurface with the skin layer spinning solution through a special-structure coating device, performing high-temperature drying through a second passage, and carrying out oiling and winding forming to obtain skin-core structured polyurethane elastic fibers.

The invention relates to the technical field of aircrafts, in particular to a composite wing unmanned aerial vehicle. The composite wing unmanned aerial vehicle comprises a wing and body combination body, a fixed wing part, a multi-rotor part, an undercarriage, a propeller and a power mechanism. The fixed wing part comprises two fixed wings arranged on the two sides of the wing and body combination body. The multi-rotor part comprises multiple rotor mechanisms symmetrically arranged on the two sides of the wing and body combination body, each rotor mechanism comprises a connecting rod and a rotor, each connecting rod is connected with the corresponding fixed wing, each rotor is horizontally arranged on the corresponding connecting rod, each connecting rod is provided with an installation shaft arranged perpendicular to the axial direction of the connecting rod, and the end portion of each installation shaft is provided with a first slope; and each fixed wing is provided with a connecting hole matched with the corresponding installation shaft, clamping grooves are formed in the hole wall of each connecting hole, telescopic buckles are arranged in the clamping grooves, and each installation shaft is provided with grooves matched with the telescopic buckles. By the adoption of the composite wing unmanned aerial vehicle, the fixed wing part and the multi-rotor part of the unmanned aerial vehicle can be quickly installed and detached without a tool.

The invention discloses an online monitoring system for the current distribution of an aluminum electrolytic tank, belonging to the technical field of aluminum electrolysis. The online monitoring system for the current distribution of the aluminum electrolytic tank comprises at least one measuring device comprising an isometric pressure drop measurement fork or a magnetic field detection sensor, the isometric pressure drop measurement fork is used for measuring the isometric pressure drop value of an anode guide rod or a cathode steel bar of the aluminum electrolytic tank to be tested, the magnetic field detection sensor converts the magnetic induction intensity around the anode guide rod or the cathode steel bar into a proportional voltage value according to a Hall principle, and the measuring device is sequentially connected with a data processing device, a wireless network and an upper computer. The invention satisfies the measurement requirements under high-temperature high-dust environment with high magnetic field intensity, has high system flexibility, is favorable to far-distance signal transmission and can simultaneously monitor a plurality of aluminum electrolytic tanks.

The invention provides a puncture cable clamp which comprises a puncture cable clamp which comprises a fixed bracket component and an insulation puncture power taking component arranged on the fixed bracket component. The fixed bracket component comprises a fixed bracket, at least two sliding blocks, and elastic pieces with the same number of the sliding blocks. The fixed bracket is provided with sliding grooves which are matched with the sliding blocks. The sliding grooves are arranged along the radial direction of the fixed bracket. The elastic pieces are arranged in the sliding grooves and are used for allowing the sliding blocks to generate outward expansion trend. The invention provides the puncture cable clamp and aims to combining the puncture cable clamp and a Rogowski coil into a whole body through a locking mechanism formed by the sliding blocks and the elastic pieces, cable with different diameters can go through the center of the coil, the sampling precision is improved, the cost of individually assembling puncture cable clamp is saved, in the condition of no power cut, an operator can carry out power taking in completely safe isolation.

The invention relates to the field of gear machining and particularly discloses a gear extrusion forming device. The gear extrusion forming device comprises a rack, an upper mould mechanism and a lower mould mechanism; the upper mould mechanism comprises a lower sliding hydraulic cylinder, an upper mould base, a squeezing hydraulic cylinder, inflation air cylinders and limiting rings; a punch is fixed to a pushing rod of the squeezing hydraulic cylinder; the limiting rings and the punch are coaxial; the limiting rings can push pistons of the inflation air cylinders to slide; the lower mould mechanism comprises a lower mould, fixing air cylinders and tooth moulds; the lower mould comprises a plurality of arc-shaped blocks; the fixing air cylinders communicate with the inflation air cylinders; piston rods of the fixing air cylinders are fixed to the arc-shaped blocks; tooth mould grooves are formed in one sides, far away from the fixing air cylinders, of the arc-shaped blocks; the toothmoulds are detachably connected with the tooth mould grooves; and through grooves allowing the piston rods of the fixing air cylinders to pass through are formed in the limiting rings. The damage of agear can be reduced.

The invention discloses a cable embedded pipe expanding robot, which comprises a cable embedded pipe traveling device, a pan-tilt, an expansion mechanism and a central processing unit. The embedded pipe traveling device comprises a traveling drive motor and a plurality of traveling wheel components peripherally and uniformly distributed along a spindle. Each traveling wheel component comprises a wheel leg and supporting arms, wherein two ends of each supporting arm are hinged to the wheel leg and the spindle respectively. The drive motor drives the wheel legs. A diameter-variable mechanism comprises a diameter-variable drive motor, diameter-variable connecting rods and a lead screw transmission mechanism. Two ends of the each diameter-variable connecting rod are hinged to a slider and thecorresponding supporting arm respectively. The diameter-variable drive motor changes the expansion mechanism comprising expansion push rods and an expansion drive motor through inclination of the supporting arms pushed by the diameter-variable connecting rods and the lead screw transmission mechanism. The central processing unit controls the traveling drive motor, the diameter-variable drive motorand the expansion drive motor to enable the robot to travel to a pipe recess, and the expansion push rods push the recess outwards to repair a recessed pipe.

The invention discloses a coiled tubing traction robot, comprising a first segment, a second segment, a third segment, a fourth segment and a fifth segment arranged sequentially from right to left; both the front segment and the rear segment sleeve a front center shaft, both the fourth segment and the fifth segment sleeve a rear center shaft, and the left and right ends of the third segment sleeve the ends of the rear and front center shafts respectively. The coiled tubing traction robot has the advantages of high integrity level, high safety, high tractive capacity, and high success rate.

The invention discloses a slicing and drying combination device for medicinal materials. The slicing and drying combination device comprises a combination rack, a control box, a medicinal material slicing mechanism, a sliced medicinal material drying mechanism and a sliced medicinal material transmission mechanism. The slicing and drying combination device integrates slicing and drying after improvement. Firstly, the problems of incoherence and poor linkage of treatment due to the fact that slicing and drying of the medicinal materials belong to separate operations in the existing methods canbe solved; secondly, a slicing device is redesigned, and the medicinal material slicing device is simple in structure and facilitates slicing; in the whole operation process, human bodies are avoidedfrom being making more contact with the medicinal materials in the operation process, the problems of allergies or tool scratches are solved, and potential safety hazards are avoided; and the slicingand drying combination device promotes continuity and linkage and has high efficiency and low labor intensity.

The invention provides a rotary uniparted hyperboloid coring and chambering rock-plug blasting method. The method comprises the steps that laser orientation drilling is conducted along at least one coring hyperboloid which is coaxial with a rock plug, and a levo/dextro linear generatrix of at least one chambering hyperboloid on the underwater or non-underwater rock plug, hyperbolic coring holes and chambered holes with high-precision linear generatrices are obtained, explosives are installed in the hyperbolic coring holes and the chambered holes, and blasting is conducted sequentially from inside to outside; due to the fact that the drilled holes in the waist portion of the coring hyperboloid are distributed densely and serve as a high-temperature and high-pressure center at the moment of blasting, blast crushed stones are cast towards the two ends of the hyperboloid, a bidirectional coring mechanism is achieved, through decoupling charge, over crushing is relieved advantageously, the proportion of casting work is increased, a good pinpoint blasting effect and a good outlining blasting effect are achieved for a cored body, and towering conditions are created for subsequent blasting; and hyperbolic chamber can be qualified to transitional linkage chambering blasting of an annular and tubular rock mass with a thick waist portion and two thin ends after the rock plug is cored and is through. The hyperbolic holes can also be used for rock plug pre-splitting or smooth surface forming blasting.

The invention provides a magnetic coupling transmission system, comprising a receiving coil arranged in a receiving device housing, a transmitting coil arranged in the transmitting device housing anda protective housing internally provided with a magnetic line of force aggregate, wherein the protective housing is located between the receiving device housing and the transmitting device housing; Amagnetic line of force aggregate is use to provide the path with the highest permeability between the transmit coil and the receive coil, so as to guide the magnetic lines of force generated by the transmitting coil to preferentially pass through the magnetic field line aggregate and then through the receiving coil, or to guide the magnetic lines of force generated by the transmitting coil moduleto preferentially pass through the receiving coil module and then through the magnetic field line aggregate module to return from the magnetic line of force aggregate module to the transmitting coil module. The invention can improve the density of magnetic lines of force passing through the receiving coil in the wireless charging process, so that when the distance between the receiving coil and the transmitting coil is long and the output power of the transmitting end is constant, the receiving power of the receiving end is not significantly reduced.

The invention discloses a method for accurately machining a deep hole. The method comprises the following steps of 1, drilling a metal material by taking the axis of a designed deep hole as the centerto obtain the metal material with a threading hole; 2, carrying out wire cutting treatment on the metal material with the threading hole by taking the axis of the designed deep hole as the center, and obtaining the metal material with a guide hole; and 3, carrying out deep-hole accurate machining on the metal material with the guide hole along the guide hole through a drill bit, and obtaining themetal material with the precisely machined deep hole. According to the method, the threading hole is machined in the metal, it is guaranteed that a wire electrode for electric spark wire cutting cansmoothly penetrate through the threading hole, the guide hole with the perpendicularity meeting the requirement is machined through wire cutting, the advancing path of the drill bit is kept parallel to the guide hole, the deep hole is machined by the drill bit, and deep-hole accurate machining is achieved, the method is controllable in precision and extremely high in success rate, and the roughness and the form and location tolerance of the machined deep hole completely meet the design requirements.

The invention provides a portable puncture device and a using method thereof, and belongs to the technical field of power equipment. The device is directly fixed on a to-be-detected capacitor througha fixing support, laser emitted by a laser emitter coincides with a preset target point on the to-be-detected capacitor by adjusting the position of a driving device, a hollow nail breaks through an element in the to-be-detected capacitor through the driving device, the hollow nail is provided with an axis through hole to guarantee the penetration of laser generated by the laser emitter and enablethe precision of the breakdown position of the hollow nail, the controller is arranged, and can excite an instruction for the action of the driving device according to a preset voltage value on the to-be-detected capacitor, so the precise control is achieved, the work efficiency is improved, and human errors and the number of times of false tests are greatly reduced.

The invention discloses a measuring device and system for a simulated weight loss unloading force of a spacecraft antenna, and belongs to the field of unloading force measurement. The measuring devicecomprises a pressure sensor, an elastic element, a soleplate and a pressure measuring and displaying instrument, the lower end of the pressure sensor is connected to the elastic element, and the elastic element is arranged on the soleplate; and the pressure sensor is also connected to the pressure measuring and displaying instrument. When a tested piece presses the sensor, the elastic element canbuffer a pressure on the sensor, and the extreme value of the unloading force is reduced; and deformation of the tested piece can be prevented during measurement, and the spacecraft antenna is protected.

The invention discloses a rope cutting machine and cutting method, and belongs to the technical field of cutting machinery. The rope cutting machine comprises a cutting device, a roller group and a guiding plate, wherein the roller group is arranged in an upper-lower opposite rolling manner between the cutting device and the guiding plate; a plurality of grooves of different groove depths and groove widths are formed in the circumferential part of the roller group; a plurality of guiding holes of different diameters are formed in the guiding plate; and the roller group is connected with a driving device, so that ropes can be straightened and conveyed. By adoption of the rope cutting machine and cutting method disclosed by the invention, the technical problems that in the prior art, the manual cutting efficiency is low and the rope consistency is poor as well as the ropes of different specifications cannot be simultaneously cut by adopting a conventional cutting machine can be solved.

The invention provides a fuel gas vortex combustion device with oxygen supplied for the front end. The fuel gas vortex combustion device comprises a pot rack which is arranged on the top of an oven outer shell, and a refractory layer is arranged in the oven outer shell. A gas mixing cavity is arranged at the bottom of the oven outer shell, the side wall of the gas mixing cavity is connected with one end of a mixed gas pipe, and the other end of the mixed gas pipe is connected with an air inlet pipe and a gas pipe. One end of the air inlet pipe is communicated with the gas mixing cavity, and the other end of the air inlet pipe penetrates through the refractory layer to be communicated with an oven inner cavity. A banking fire plate is arranged in the middle of the oven inner cavity and located at the center of the bottom of the refractory layer through an adjustment screw rod. The distance b between the banking fire plate and the bottom of the refractory layer is not smaller than 80 mm and not larger than 300 mm, the area of the banking fire plate is one third to a half of the cross sectional area of the oven inner cavity, n small banking fire holes are evenly distributed in the banking fire plate, n is not smaller than 3 and not larger than 8, the diameter d of each small hole is not smaller than 5 mm and not larger than 20 mm, a secondary air inlet pipe is arranged under the banking fire plate, and the secondary air inlet pipe is connected with the air inlet pipe.

The invention discloses a guide base applied to automatic production machine of belt, wherein the automatic production machine of belt comprises a belt conveyor, a main frame, a belt buckle a conveyor and a control cabinet; the main frame is installed with a sewing mechanism and cutting mechanism, the guide base is provided with arc concave surface in the side towards belt buckle conveyor, the head of the guide belt moves along the arc concave and bends afterwards to form overlapped structure, the surface of arc concave is embedded with multiple rollers, the head of auxiliary belt rotates and bends along the arc concave, an the head of the belt penetrates two ties on the belt buckle after movement along the arc concave and in the process of bending. The technical scheme can automatically and stably finish afterward bending in belt transmission process, penetrate two ties of the belt buckle successively, and form double-layer overlapped structure, which is stable and reliable, and reduces work load of operation personnel.

The invention relates to the technical field of sewage disposal, and discloses a riverway garbage collection and treatment device. The riverway garbage collection and treatment device comprises a protective net cage, wherein two rotating rods are movably connected to the interior of the protective net cage in a clamped mode, and rotating blades are fixedly arranged on the surfaces of the two rotating rods. According to a riverway sewage disposal device, the purpose of good sewage solid-liquid separation effect is achieved by arranging a solid garbage salvaging net box, a small garbage salvaging net box, the protection net cage and the like, a riverway is often filled with various solid and liquid garbage, large-size solid garbage can be left in the solid garbage salvaging net box by the solid garbage salvaging net box, small-size garbage enters the small garbage salvaging net box, the small-size garbage can be effectively adsorbed and condensed together in the small garbage salvaging net box by injecting a flocculating agent into a material injection pipe, and when any net box is saturated with the garbage, the net boxes can be lifted by utilizing left hydraulic rods and right hydraulic rods, so that the garbage can be manually treated, and the measure greatly improves the sewage solid-liquid separation effect.

The invention discloses a rice seedling transplanting machine with a seedling pressing device. The rice seedling transplanting machine comprises a rack, a travelling device, a seedling box, a seedlingtransporting mechanism and a seedling distribution and transplanting mechanism, wherein the rack is provided with a ship plate and an inclined plate; the seedling box is internally provided with theseedling transporting mechanism; the ship plate is provided with a plurality of seedling doors and the seedling distribution and transplanting mechanism; seedling abutting plates are slidingly arranged at two sides of the seedling doors, and the seedling abutting plates are connected with a third linear driver; one of the seedling abutting plates located at two sides of the seedling doors abuts against an end face after seedlings are transplanted in a seedling piece, and the other seedling abutting plate abuts against an end face before seedlings are transplanted in the seedling piece; the seedling transporting mechanism comprises a third conveyor belt; the seedling pressing device is arranged above the third conveyor belt; the seedling pressing device comprises a pair of fourth conveyor belts which are arranged oppositely; a plurality of seedling pressing rods are rotatably arranged between the fourth conveyor belts; a plurality of seedling pressing needles are arranged on the seedling pressing rods; the third conveyor belt pushes the fourth conveyor belts to rotate. The rice seedling transplanting machine can be used for effectively preventing the problem that the seedlings are lacked in a seedling transplanting process.