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109 results about "Lateral thrust" patented technology

Roller type electromagnetic stirring device with braking function

ActiveCN223264750USlagMolten steel
The utility model discloses a roller type electromagnetic stirring device with a braking function, the roller type electromagnetic stirring device comprises a traveling wave roller, a braking roller and connecting seats, the two ends of the braking roller are respectively connected with the first end of the traveling wave roller through the connecting seats, the traveling wave roller comprises a main shaft, a traveling wave coil and a roller sleeve, the traveling wave coil is wound on the main shaft, and the roller sleeve is sleeved on the main shaft. The traveling wave coil generates a traveling wave magnetic field after being electrified; the brake roller comprises an outer cylinder, an iron core, an arc-shaped coaming and end covers, two ends of the arc-shaped coaming are hermetically connected with the end covers to form a hollow cylinder, the iron core is fixedly mounted in the hollow cylinder and is perpendicular to the outer cylinder, the cross section of the iron core is waist-shaped, a brake coil is wound on the iron core, and the brake coil generates a brake magnetic field perpendicular to the traveling wave magnetic field after being electrified. The traveling wave rollers generate transverse thrust to stir an unsolidified liquid core in a casting blank, the braking rollers generate longitudinal braking force to buffer overlapped impact of molten steel circulation formed by the transverse thrust of the traveling wave rollers on the two sides, sufficient mixing of molten steel and floating of inclusions are promoted, and slag entrapment is prevented.
Owner:HUNAN ZHONGKE ELECTRIC CO LTD

Apparatus, system, and method to control torque or lateral thrust applied to a load suspended on a suspension cable

Disclosed are systems, apparatuses, and methods for and related to dynamic control of torque and or lateral thrust applied to a load suspended load on a suspension cable to thereby achieve a target orientation or position or to otherwise move through use of a hyperparameter, wherein the hyperparameter comprises a normalized moment of inertia, wherein the hyperparameter comprises a ratio of a force command to a thruster and an angular acceleration.
Owner:VITA INCLINATA IP HOLDINGS LLC

Fire-fighting unmanned ship for narrow water area and control method of fire-fighting unmanned ship

The invention belongs to the technical field of ship equipment, and discloses a fire-fighting unmanned ship for a narrow water area and a control method thereof.The ship body comprises a single-bottom single-deck longitudinal framework structure and a main transverse watertight bulkhead which are connected with each other, and a dynamic stable propelling device is arranged on the ship body and comprises double electric propelling mechanisms and a bow lateral propelling mechanism; the intelligent fire fighting operation device is arranged on the boat body and comprises a multi-source sensing mechanism, a fire water monitor and a self-protection water mist mechanism, the multi-source sensing mechanism comprises a fire source positioning assembly used for positioning a fire source, and the fire water monitor and the self-protection water mist mechanism can spray water based on positioning information of the fire source positioning assembly. The double electric propulsion mechanisms and the bow lateral thrust mechanism can cooperatively act to counteract recoil generated during operation of the fire water monitor. Through the arrangement, the fire-fighting unmanned ship for the narrow water area can adapt to the environmental characteristics of the narrow water area, and the operation safety, stability and fire extinguishing precision are improved.
Owner:AFAI SOUTHERN SHIPYARDPANYU GUANGZHOU LTD

Module block division method of container ship

The invention relates to the technical field of ship construction, and discloses a container ship module block division method which comprises the following steps: S1, according to a functional system, a hoisting system and a segmented supporting tool, dividing a container ship into a cabin module block, a cargo hold module block, a bow module block and a superstructure module block; s2, the cabin module block is divided into a front cabin subsection, a rear cabin subsection, a cabin upper cover subsection and a rudder upper cover subsection by taking base distribution as a benchmark; s3, dividing the cargo compartment module block into a bottom section, a broadside section and a transverse bulkhead section by taking the length of the container as a reference; s4, dividing the bow module block into a bow lower ring section, a bow upper ring section, a bow upper section and a bow lower section by taking distribution of a liquid tank base and a lateral thrust tank base as a reference; and S5, taking the integrity of the cabin as a benchmark, and dividing the superstructure module block into one or more sub-segments. The weight and the height of each module block are increased, the number of segments included in each module block is reduced, and the construction period in the dock is shortened.
Owner:CSSC HUANGPU WENCHONG SHIPBUILDING CO LTD

Air suspension system controlled by single altitude valve

The utility model relates to an air suspension system controlled by a single altitude valve, and solves the problems that air pressures of left and right air bags are inconsistent, one side is hard and the other side is soft, or the left and right heights of a frame are inconsistent and are difficult to adjust when a vehicle is in an idle state. The upper cover plate (5), the axle lower support (8) and the guide arm lower fixing seat (9) are connected with the axle (10) and the guide arm (11); the guide arm (11) is connected with the frame (1) through the front bracket (2); the lower end of the air spring (6) is connected with the guide arm (11), and the upper end is connected with the frame (1); the front end and the rear end of the transverse thrust rod (14) are respectively connected with the axle bracket (15) and the frame bracket (16); the upper end of the shock absorber (7) is connected with the frame (1), and the lower end is connected with the guide arm (11); the height valve (13) is mounted in the middle of the frame cross beam (12), is connected with an axle through a horizontal rod and a vertical rod, and is communicated with the left air bag and the right air bag at the same time; and the rubber buffer block (4) is arranged on the frame (1).
Owner:BEIBEN TRUCKS GRP

Container explosive non-opening box intelligent inspection device based on ion mobility spectrum

The application discloses a container explosive non-opening box intelligent checking device based on ion mobility spectrometry, which comprises a connecting outer frame, a hydraulic cylinder is internally installed in the connecting outer frame, a hydraulic pump is connected to one end of the hydraulic cylinder, and a first piston is movably connected in the hydraulic cylinder. The ion mobility spectrometer and a separately designed collecting device are integrated into one equipment, a user carries the equipment by means of shoulder carrying, and a handle is equipped to facilitate holding. The air suction pipe is placed at the ventilation position of the container, the threaded rod and the first piston are driven to move transversely by hydraulic oil, the sample is pushed to the ion mobility spectrometer for analysis and detection, before the next sample test, the threaded rod is driven by the hydraulic oil to drive the polishing blade to rotate in the air suction pipe, the internal powder is scraped, the transverse thrust generated by the piston ring can extrude the gas in the air suction pipe, and thus the whole cleaning process is completed, the residues after each detection are greatly reduced, and the accuracy of the next extraction detection is avoided.
Owner:TIANJIN RES INST FOR WATER TRANSPORT ENG M O T

A floating male liquid-cooled connector and connector assembly

ActiveCN117685437BEasy to centersmall lateral thrustMedicineMechanical engineering
The application discloses a floating male liquid cooling connector and a connector assembly, and belongs to the technical field of liquid cooling connectors. The floating male liquid cooling connector comprises a male shell, and a cavity is arranged in the male shell; a male body is arranged in the cavity, and one end of the male body is located outside the male shell; a male valve body is arranged in the male body; a blocking ring with a through hole is arranged in the cavity; a rotating piece is arranged on each side of the blocking ring; a blocking ring is arranged at the end of the male body; a main spring is arranged between the blocking ring and the lower rotating piece; an elastic tube is arranged at the end of the male body and communicates with the male body; and a male connector is arranged at the end of the male shell and communicates with the elastic tube. The application has the beneficial effect that two rotating pieces are used, the design of normal compression of the sealing ring of the male body is cancelled, the elastic tube is used to realize sealing connection, the required lateral thrust is small when floating, and the centering of the connector is easier to realize.
Owner:SHANGHAI SILANG WANWEI COMPUTING TECH CO LTD

Three-dimensional vector thrust testboard for micro turbojet engine

The utility model provides a three-dimensional vector thrust testboard for a micro turbojet engine, and relates to the technical field of engine thrust measurement. The test board comprises a rack fixed part and a rack movable part. The front end of the rack movable part is movably connected with the front support, and the rear end of the rack movable part is erected on the rear support; a tested engine is connected to the rear end of the movable part of the rack through a fixed clamping ring; an air inlet channel of the engine faces the rack movable part, and the central axis of the engine is located in the horizontal plane of the rack movable part. An axial thrust meter for measuring the axial thrust of the engine in real time is arranged between the front support and the front end of the movable part of the rack; a transverse thrust meter is arranged between each of the two sides of the rear end of the movable part of the rack and the rear support; and a vertical thrust meter is arranged between the rear support and the fixed clamping ring. In this way, the engine thrust measurement precision is improved, the influence of the structure on force measurement is reduced, and it is guaranteed that data measurement is more stable.
Owner:NANJING SAIEN NAVIGATION TECH CO LTD

Welding device for reinforcing treatment of metal lining plate

The invention discloses a welding device for reinforcing a metal lining plate, which belongs to the technical field of metal welding processing, and is characterized in that two sliding seats are driven to get close to each other by operating a horizontal adjusting assembly, lateral thrust is generated on pressing wheels when the lining plate is attached to the pressing wheels, and reverse correction force is applied to the edge of the lining plate through a plurality of pressing wheels on the sliding seats; meanwhile, the piston plate vertically slides downwards along the cavity and drives the pressing plate to synchronously move downwards, so that the non-slip mat is tightly attached to the upper surface of the lining plate, the pressing wheels always exert locking force on the edge of the lining plate, and the lining plate can be automatically rectified until the edge of the lining plate is completely attached to the pressing wheels. The pressing plate continuously exerts uniform pressing force on the lining plate, linkage of deviation rectifying, locking and pressing is synchronously completed, displacement or loosening of the lining plate in the follow-up welding process is effectively avoided, cracks caused by welding stress concentration due to splicing dislocation of the lining plate and uneven attaching gaps are prevented, and the stability of welding and reinforcing of the metal lining plate is improved.
Owner:WUHAN KEFA FERROUS ALLOY CO LTD

Aircraft roll wing

The application discloses an aircraft rolling wing, which comprises a fixing plate, paddle blades, an eccentric mechanism and an eccentric disc deflection driving mechanism. The fixing plate is used for being fixedly connected with an aircraft. The paddle blades are multiple. A paddle blade rotating driving device is used for driving the paddle blades to rotate and comprises a support. The eccentric mechanism is used for enabling the paddle blades to swing when rotating and comprises an eccentric disc, a rotating disc and multiple connecting rods. The eccentric disc deflection driving mechanism is connected with the eccentric disc and is used for driving the eccentric disc to rotate with the rotating shaft of the support as the center. Compared with the prior art, the aircraft rolling wing can control the deflection angle of the paddle blade swinging, so that sufficient lift and appropriate lateral thrust can be obtained.
Owner:BEIJING HK PRECISIONS CO LTD

Boiler steel belt type slag drying machine deviation monitoring method and system, medium and electronic equipment

The invention relates to a deviation monitoring method and system for a boiler steel belt type slag drying machine, a medium and electronic equipment, and relates to the technical field of equipment monitoring, and the method comprises the steps that the lateral thrust moment of target ash on a steel belt is determined; based on the actual running speed, the lateral thrust moment, the historical speed interval and the historical time period, the influence coefficient of ash accumulation on steel belt deviation is determined, and a target deviation threshold value corresponding to the steel belt is determined according to the influence coefficient; the actual offset and the actual offset direction of the steel belt are obtained, when the actual offset exceeds a target offset threshold value, if the actual offset direction is consistent with the moment direction of the lateral thrust moment, first early warning information is sent to a terminal of a person, and if the actual offset direction is opposite to the moment direction of the lateral thrust moment, second early warning information is sent to the terminal of the person; and if so, sending second early warning information to the terminal of the person. The method and the device have the effect of accurately carrying out steel belt deviation early warning.
Owner:TANGSHAN ZEDE TECHNOLOGY CO LTD

Unmanned underwater vehicle dynamic positioning control method based on discrete optimal control

The invention relates to the technical field of non-electrical variable control, in particular to an underwater unmanned vehicle dynamic positioning control method based on discrete optimal control, and the method comprises the following steps: obtaining a simplified underwater unmanned vehicle longitudinal motion equation, a simplified horizontal plane motion equation, a simplified vertical plane motion equation and a simplified auxiliary motion equation; establishing a longitudinal motion, horizontal plane motion and vertical plane motion state space model of the underwater unmanned vehicle; calculating the instruction longitudinal displacement, the instruction transverse displacement and the instruction course of the unmanned underwater vehicle; designing a dynamic positioning control law of the underwater unmanned vehicle, and resolving an instruction longitudinal thrust, an instruction lateral thrust, an instruction bow turning moment, an instruction vertical thrust and an instruction longitudinal tilting moment of the underwater unmanned vehicle; and calculating the bow and stern lateral thrust instruction rotating speed, the bow and stern vertical thrust instruction rotating speed and the main thrust instruction rotating speed to complete the dynamic positioning control of the unmanned underwater vehicle. The method provided by the invention can effectively avoid the static error problem of traditional PID control and LQR optimal control.
Owner:CHINA STATE SHIPBUILDING CORP NO 707 RES INST +1

Multipurpose water robot

The invention discloses a multi-purpose water robot. The multi-purpose water robot comprises a shell, a steering mechanism, a propelling mechanism and a control system, the steering mechanism comprises a rotating disc arranged in the shell in the transverse direction and a steering driving device fixed in the shell, the rotating disc can be driven by the steering driving device to rotate around the central axis of the rotating disc, and the shell floats on the water surface. When the rotating disc rotates, reaction torque applied to the shell can drive the shell to rotate in the direction opposite to the rotating direction of the rotating disc, and steering is achieved. By arranging the rotating disc driven by the steering driving device in the machine body and utilizing the angular momentum conservation principle, when the rotating disc rotates at a high speed around the central axis of the rotating disc, the shell can rotate at a high speed in the opposite direction under the driving of reaction torque, steering is achieved, and dependence on lateral thrust or differential steering of a traditional propeller is not needed; and the turning radius is small, and the problem that a traditional water surface robot is difficult to flexibly avoid obstacles due to the too large turning radius is effectively solved.
Owner:DALIAN JIAOTONG UNIVERSITY

High-speed permanent magnet linear motor test system and test method

The invention relates to a high-speed permanent magnet linear motor test system and method, and the system comprises a secondary device which bears and fixes a linear motor secondary, a primary device which is disposed above the secondary device and is used for bearing and fixing a linear motor primary, the primary device can vertically ascend and descend relative to the secondary device, and a sensing unit is disposed on the primary device. The sensing unit is used for acquiring at least one acting force of transverse thrust, normal thrust and longitudinal thrust generated by the linear motor. According to the high-speed permanent magnet linear motor test system and method provided by the invention, the thrust ratio of the linear motor in each direction during static load can be automatically measured, and the air gap can be automatically adjusted. Test of linear motors of different models and different sizes is fully considered in the structural design, the application range is wide, and operation is convenient.
Owner:ZHUZHOU TIMES EQUIP TECH

A method for testing buckling instability of super-long pile under combined action of multiple loads

The application discloses a kind of super-long pile buckling instability test methods under the action of multiple load combination, comprising: through special data comprehensive computing platform, the multiple load parameters of stratum physical mechanics characteristics, pile structure geometry and axial pressure, lateral thrust and torque are collected, and the interaction relationship of clear parameters is handled by multiple load pile buckling coupling model;Using non-uniform load pile buckling deformation prediction model to deduce the deformation trend of each section of pile body, with the help of super-long pile buckling instability tracing analysis algorithm, locate the key parameters and action interval of instability;Through platform dynamic capture actual deformation and stress distribution data, after comparing and calibrating with deduced result, the critical state parameters of buckling instability and full-range deformation law are optimized and output.The method realizes the accuracy and systematicness of test under multiple load and complex stratum condition, and provides reliable technical support for super-long pile engineering safety design.
Owner:CHONGQING JIAOTONG UNIV

Tunnel thruster

A tunnel thruster of a pleasure boat includes a propeller and a tunnel. The tunnel is installed through and across the at least one hull, from a first aperture at a first side of the hull to a second aperture at a second side of the hull. The propeller rotates about a propeller principal axis within the tunnel so that, when the pleasure boat is level, the propeller principal axis is substantially horizontal and substantially perpendicular to a disc swept by the propeller. The tunnel thruster is operable to drive water between the first and second apertures to provide lateral thrust to the hull. Each of the first and second apertures has a respective highest point, and the top of the disc swept by the propeller is located at a position higher than the respective highest points of the first and second apertures when the pleasure boat is level.
Owner:LEWMAR LTD

Movable point rail frog slide plate base plate device

The utility model discloses a movable point rail frog slide plate base plate device, which belongs to the technical field of railway tracks and comprises a bottom plate, two wing rails arranged on the bottom plate and a point rail positioned between the two wing rails. A platen is arranged between the point rail and the bottom plate, the point rail is fixedly connected with the platen, a rotary connecting structure is arranged between the platen and the bottom plate, and the rotary connecting structure can convert transverse thrust borne by the point rail into transverse component force enabling the point rail to move horizontally and vertical component force enabling the point rail to ascend. The point rail switching device has the advantage that frictional resistance in the point rail switching process is reduced.
Owner:CHINA RAILWAY CONSTR HEAVY IND

Snap spring machining and bending device

The utility model discloses a clamp spring machining bending device which comprises a bottom plate, a supporting rod is fixedly connected to one end of the upper portion of the bottom plate, a top plate is fixedly connected to the upper portion of the supporting rod, an air cylinder is fixedly connected to the upper portion of the top plate, a bending assembly is fixedly connected to the lower portion of the air cylinder, and a base is fixedly arranged in the middle of the upper portion of the bottom plate. A fixing assembly is fixedly arranged above the base, a pushing and pressing plate is arranged on the side face of the fixing assembly, a hydraulic telescopic rod is hinged to the side face of the pushing and pressing plate, and a pushing and pressing device is hinged to the other end of the hydraulic telescopic rod; the limiting block and the spring telescopic rod slide through the sliding groove, the clamping distance is automatically adjusted according to the size of a clamping spring original piece, original pieces of different specifications can be adapted without manual intervention, the clamping stability is ensured, the elastic deformation design of the arc-shaped clamping plate is matched with the lateral thrust of the hydraulic telescopic rod, the bending radian can be predefined, and the clamping efficiency is improved. And the machining precision and the consistency are obviously improved.
Owner:LISHUI CHAOTAI FASTENER CO LTD

Aluminum alloy template that is easy to disassemble and assemble

The present invention discloses an aluminum alloy formwork that is easy to disassemble and assemble, and relates to the technical field of aluminum formwork systems. The aluminum alloy formwork that is easy to disassemble and assemble comprises a formwork body, wherein the upper and lower sides of the formwork body are provided with end edges, and the two sides of the formwork body are provided with side edges. Two formwork bodies form a 90° formwork, and a right-angle connecting frame is provided between the two formwork bodies. The aluminum alloy formwork that is easy to disassemble and assemble can be directly hammered with a hammer. When the hammer is struck on the drag plate, the wedge piece can be moved downward. During the downward movement of the wedge piece, it can gradually apply a lateral thrust to the pressure pad, so that one pressure pad generates pressure on the side edge and the other pressure pad generates pressure on the sealing end, so that the entire wedge locks the connecting component. This makes the present invention not only easy to disassemble and assemble, but also further strengthens the connection effect between the formwork body and the top of the right-angle connecting frame.
Owner:SHANDONG JIUWEI NEW MATERIAL CO LTD

Check bolt with C-shaped notch

The invention discloses a lock bolt with a C-shaped notch, belongs to the technical field of bolts, and aims to solve the problems that in the prior art, due to the fact that friction force between threads is gradually reduced or disappears, the looseness phenomenon is easily caused, serious safety accidents are caused, and the long-term stable fastening connection requirement is difficult to meet. Through a multi-cooperative anti-loosening structure, the stability and reliability of bolt connection are further improved, in the anti-loosening assembly, through the inclined matching design of a first abutting plate and a first containing groove, transverse thrust can be generated when a mounting plate is knocked, so that a second abutting plate tightly abuts against the outer wall of a nut, rigid limiting is formed, and the anti-loosening effect is improved. A linkage mechanism of the limiting assembly and the locking assembly further strengthens the anti-loosening effect, a first limiting block is extruded when a conical block moves downwards, automatic locking of the conical block is achieved through reset elastic force of a first spring, then a limiting plate is fixed, and it is ensured that the nut is continuously limited by the anti-loosening assembly through longitudinal constraint of the limiting plate on a mounting plate; upward loosening caused by external force impact is avoided.
Owner:JIANGXI LONGLONG BUILDING MATERIALS CO LTD

Automatic spiral stem stripping device for preserved vegetable

PendingCN122350347ASpiral bladeTorsion spring
This invention discloses an automated spiral stem-removing device for pickling mustard tubers, comprising a frame structure, including a base frame, with a vertical plate fixed to the top surface of one end of the base frame. A processing mechanism is provided on the side wall of the vertical plate. The position adjustment structure achieves overall horizontal and vertical coarse-to-fine adjustment of the processing mechanism through dual servo screws. Then, in conjunction with the diameter-changing effect of the segmented spiral blade structure, it realizes the adjustment of the cutting position according to the feeding state of the mustard tuber head. It not only adjusts the position but also changes the diameter to ensure accurate cutting. The segmented spiral blade structure adopts a closed-loop constraint structure with an inner diameter-changing blade for conformal cutting and an outer guide structure with elastic rollers for circumferential restraint. The extrusion roller of the guide structure relies on a second torsion spring to form radial floating compensation, flexibly lifting and limiting the workpiece from multiple points on the outer periphery, offsetting the lateral thrust generated by the spiral blade cutting, and constraining the mustard tuber head to keep it coaxial and centered throughout the feeding process, thus avoiding jamming and material jamming.
Owner:CHONGQING CHUANZI FOOD CO LTD

Floating fan and method for optimizing tension of mooring cable of floating fan

The invention relates to the technical field of offshore wind driven generators, and discloses a floating type fan and a floating type fan mooring cable tension optimization method.The floating type fan comprises a floating platform, a tower barrel, a wind turbine generator set, mooring cables and a rotary wind barrel, the tower barrel is vertically arranged on the floating platform, the wind turbine generator set is arranged at the top of the tower barrel, and the three mooring cables are distributed in a triangular shape; one end of each mooring rope is connected with the floating platform, a sensor is arranged on each mooring rope, the rotary air duct is rotationally arranged outside the tower drum, and the rotary air duct is in signal connection with the sensor. When one mooring rope bears the limit load, and the loads of the other two mooring ropes are small, the rotary air duct is started, and the draught fan bears the windward resistance component; when the mooring rope is stressed, a lateral thrust component is also exerted, so that the displacement of the fan in the wind wave direction is converted into side offset, the stress of the mooring rope is readjusted, the situation that only one mooring rope bears extreme load originally is automatically relieved, and the performance potential of the mooring rope can be fully exerted.
Owner:CHINA THREE GORGES CORPORATION

Wind-resistant communication tower

The invention discloses a wind-resistant communication tower which comprises a tower pole, the tower pole is coaxially and rotatably sleeved with a first ring body, and the first ring body is provided with a first mass block located on one side of a middle shaft of the tower pole and a first tail wing located on the other side of the middle shaft of the tower pole and opposite to the first mass block; and the first empennage is used for enabling the first mass block to face the windward direction all the time so as to counteract the lateral thrust of wind to the tower pole by utilizing the counter-acting force generated by the mass block. The mass block is linked with the empennage, the ring body automatically rotates to enable the mass block to face the windward direction, hedging torque is formed, the side thrust of wind to the tower pole is effectively counteracted, and the wind resistance is improved. The two mass blocks are respectively arranged on two symmetrical sides of the middle shaft of the tower pole and keep symmetrical positions through passive or active resetting, so that balanced stress of the tower body is ensured, and the structure is more stable.
Owner:ZHEJIANG DEBAO COMM TECH CO LTD

A bumper-supported pedestrian airbag system for trucks

This invention relates to the field of airbag technology and provides a bumper-supported pedestrian airbag system for trucks, including a bumper, a main support box, an airbag ejection device, a lateral thrust rod, a central guide rod, a longitudinal thrust rod, a support rod, a coil spring, an airbag, and a drive gear. When a living person is detected in an obstacle ahead, this invention can deploy the airbag within 1 second to mitigate the impact of a collision with a pedestrian. Simultaneously, the movement of the airbag ejection device drives the bumper to move downwards automatically via the lateral thrust rod, central guide rod, and longitudinal thrust rod, effectively supporting the pedestrian's legs and preventing the pedestrian from being dragged under the vehicle after impact. Furthermore, when the airbag deploys and impacts a pedestrian, the membrane tears, exposing and adhering to the adhesive coating on the airbag surface, thus mitigating secondary injuries sustained upon landing.
Owner:JILIN UNIVERSITY

Electromagnetic forming device and method for part drawing process

The invention provides an electromagnetic forming device for a part drawing process. The electromagnetic forming device comprises a male die, a female die and a female die, the female die is matched with the male die; the radial side thrust coil is used for providing radial side thrust for the plate; the axial deep drawing coil is used for providing axial thrust for the male die, and the male die extrudes the plate; the lower induction coil and the upper induction coil are used for providing circumferential pressure stress for reducing a plate flange area; wherein the radial lateral thrust coil, the axial drawing coil, the lower induction coil and the upper induction coil are connected in series; meanwhile, the invention further provides an electromagnetic forming method for the part drawing process.
Owner:AVIC XIAN AIRCRAFT IND GRP CO LTD

Vertical takeoff landing (VTOL) aircraft system and method

An electric VTOL aircraft has a fuselage having a nacelle that is flexibly connected to a power plant assembly that includes a plurality of electric rotors and arms. The power plant assembly may pitch and roll relative to and independently of the nacelle to produce efficient forward, rearward, and lateral thrust while the nacelle attitude remains unchanged. This provides a stable passenger experience as well as enhanced performance and controllability, while reducing cost and complexity. In some embodiments, the fuselage is vertically elongated, and the power plant assembly is mounted above the fuselage such that a person can walk fully upright below the rotors. Also disclosed is a VTOL docking station configured to allow an aircraft to land without the use of landing gears. The docking station also includes an electronic component configured to automatically provide charging to the aircraft when the aircraft is docked with the docking station.
Owner:威廉·斯温特·巴特菲尔德

A welding device for bridge expansion joint processing

The application relates to the technical field of bridge expansion joint processing, and discloses a welding device for bridge expansion joint processing, which comprises a base, two groups of side beams are arranged at the top center of the base, a plasma arc welding gun is arranged above one side of each side beam through a gas cylinder, and the base is provided with a bearing table arranged on both sides of the top of the base, the top of the bearing table is uniformly provided with a positioning seat, the top end of the positioning seat is provided with a supporting block, steel bars are arranged on the supporting block, a driving rod is arranged on one side of the bottom of the supporting block through a guide wheel, the output end of the driving rod is rotationally connected with a transmission rod through a connecting shaft, the top end of the transmission rod is connected with a sliding block through a second hinged frame, a pressing plate is arranged on one side of the sliding block, and the pressing plate is used for converting the gravity of the steel bars into lateral thrust of the pressing plate; a box body is arranged on one side of the positioning seat, a movable piece is arranged in the box body through a tension spring, and an indicator is arranged at one end of the movable piece. The self-weight of the steel bars is used as a power source to realize automatic positioning and lateral pressing of the steel bars, visual positioning indication and reliable mechanical self-locking function are matched, and the welding precision, operation safety and production stability of bridge expansion joint prefabrication processing are improved.
Owner:HEBEI BAOLI ENG EQUIP GRP CO LTD

Roller-type electromagnetic stirring device and method with braking function

ActiveCN119035479BSlagStructural engineering
The present invention discloses a roller-type electromagnetic stirring device and method with a braking function. The roller-type electromagnetic stirring device comprises a traveling roller, a brake roller, and a connecting base. The two ends of the brake roller are connected to the first end of the traveling roller via the connecting base. The traveling roller comprises an iron core, a traveling coil, and a roller sleeve. The traveling coil is wound around the iron core and generates a traveling magnetic field when energized. The brake roller comprises an outer cylinder, an iron core, an arc-shaped enclosure, and an end cap. The ends of the arc-shaped enclosure are sealed to the end cap to form a hollow cylinder. The iron core is fixedly mounted within the hollow cylinder and perpendicular to the outer cylinder. The iron core has a waist-shaped cross-section and is wound around the iron core. The brake coil generates a braking magnetic field perpendicular to the traveling magnetic field when energized. The traveling roller generates a lateral thrust to stir the unsolidified liquid core within the ingot. The brake roller generates a longitudinal braking force to buffer the combined impact of the molten steel circulation caused by the lateral thrust of the two traveling rollers, promoting thorough mixing of the molten steel, floating inclusions, and preventing slag entrainment.
Owner:HUNAN ZHONGKE ELECTRIC CO LTD

A sinking well drag reduction isolation layer and construction method

The application relates to a sinking well resistance-reducing isolation layer and a construction method. The sinking well resistance-reducing isolation layer is composed of a sinking well outer well wall and sand piles arranged at the bottom of a partition wall. The sand piles form a sand sleeve below the sinking well outer well wall step to reduce side resistance, and the sand piles form a sand sleeve between the inner side of a sinking well blade foot and soil to reduce end resistance. By arranging the sand piles at the bottom of the sinking well outer well wall and the partition wall, a certain thickness of sand sleeve is formed below the sinking well outer well wall step during sinking of the sinking well. In the case that the earth pressure is unchanged, the side resistance is effectively reduced by reducing the friction coefficient. Meanwhile, the sand piles form a sand sleeve between the inner side of the sinking well blade foot and the soil, the transverse thrust on the soil is increased by reducing the friction coefficient, the soil under the blade foot is damaged, the end resistance is reduced, and the problem that the sinking well outer well wall below the bottom step and the soil between the inner side of the blade foot and the soil cannot reduce resistance is solved.
Owner:CHINA FIRST HIGHWAY ENGINEERING CO LTD +1