149 results about "Lift line" patented technology

The invention relates to the technical field of wind power generation, particularly provides a wind turbine blade aeroelasticity analysis method, system and equipment and a medium, and aims to solve the problem of aeroelasticity analysis of wind turbine blades. Therefore, the aeroelasticity analysis method for the wind turbine blade comprises the steps that the aerodynamic load of the blade is determined based on a pre-constructed aerodynamic model, and the aerodynamic model is constructed based on a vortex wake method of a lift line; based on a pre-constructed blade structure model and the aerodynamic load of the blade, determining structure response information of the blade; and analyzing the aeroelasticity of the blade based on the aerodynamic load and the structural response information of the blade. According to the method, the complex interaction between the unsteady aerodynamic load and the elastic deformation of the blade can be predicted, so that the influence of the aeroelastic effect on the power generation performance and fatigue life of the wind turbine is understood, and a reference is provided for reasonable design of the wind turbine blade.

The invention discloses a dynamic modeling and analysis method for a gull-wing morphing aircraft in the technical field of flight system control. The dynamic modeling and analysis method comprises the following steps: S1, calculating aerodynamic force and torque borne by the aircraft according to a three-dimensional lift line theory; s2, establishing a multi-body dynamic model through a quasi-Lagrange equation; s3, analyzing the aerodynamic characteristics of the aircraft according to the calculation result of the experiment; s4, analyzing the kinematics characteristics of the aircraft according to the calculation result of the experiment; and S5, adjusting the wing configuration according to the analysis result, so that the aircraft keeps stable flight. The method solves the problem that a traditional variant aircraft is not matched in performance at different flight stages, especially is large in lift force loss under the low-speed condition.

The invention belongs to the technical field of engine simulation, and relates to an engine variable-dimension numerical simulation method and device, and the method comprises the steps: calculating the parameters of a contra-rotating propeller fan based on a contra-rotating propeller fan three-dimensional lift line model; determining the axial average speed of air flow at the inlet of the air inlet; determining section parameters at an inlet of the air inlet channel; calculating section parameters at an outlet of the air inlet; the air flow at the outlet of the air inlet channel is divided into two parts, one part of the air flow is distorted, the other part of the air flow is distortionless, and section parameters at the outlet of the low-pressure compressor are determined through mixing at the outlet; calculating inlet and outlet section parameters of each component according to the zero-dimensional model of each component of the engine; a balance equation is constructed according to circulation of airflow in all parts of the engine; constructing a balance equation according to the balance relation between the shaft power and the torque output by the free turbine and the power and the torque calculated by the contra-rotating propeller fan three-dimensional lift line model; the balance equation is iteratively solved to determine an initial guess value, and when iteration converges, engine performance is calculated. The method is high in simulation precision and high in speed.

Yoke mooring systems and processes for using same. The system can include a turntable connected to and rotatable with respect to a base. A yoke can be connected to the turntable such that the yoke can at least partially rotate about a longitudinal axis of the yoke and at least partially rotate about a second axis that can be orthogonal to the longitudinal axis. A first and second link arm can be connected to the yoke and to a first component of a first and a second releasable connector, respectively. A first and second lifting line can be connected to the second end of the first and second link arms, respectively. A first and second lifting device can be disposed on a vessel and configured to be connected to a second end of the first and second lifting lines, respectively, to lift and lower the link arms and the yoke.

The invention relates to the technical field of terminal correction, and particularly discloses a wire harness terminal correction device of a new energy automobile, which comprises a base, a terminal structure is arranged on the base, the terminal structure comprises a material belt and a plurality of terminal main bodies, and the plurality of terminal main bodies are uniformly connected to one side of the material belt; according to the wire harness terminal correcting device of the new energy automobile, the multiple terminal crimping wings on the material belt can be corrected in batches at a time by means of the layout of the fixed frame and the adjustable moving frame in cooperation with synchronous power transmission of the pushing structure, the traditional low-efficiency mode of correcting the terminal crimping wings one by one is thoroughly replaced, the production efficiency is remarkably improved, and the production cost is reduced. And meanwhile, by matching with the symmetrically distributed correction structures, the synchronous transmission of the hinged pull rod and the precise guide design of the guide slide block, the uniform stress and consistent angle of the crimping wing are ensured, the error caused by manual operation is avoided, the standard form of the terminal crimping wing is effectively ensured, and the electrical performance and mechanical strength of wiring harness connection are improved.

This invention discloses a finite element analysis method for seat body pressure distribution based on gravity, comprising the following steps: First, combining the shape data of the seat cover, the engineering data of the foam and suspension lines are determined; during modeling, in addition to the seat frame, plastic parts, and foam, the cover and suspension lines are also included, and the initial penetration of the foam and cover is preserved; a prestress file for the foam and cover is generated; the suspension lines are simulated using 1D spring elements; the generated prestress file is imported into the established finite element model of the entire seat, and the final seat model includes the prestress of the foam wrapped by the cover with suspension lines; a dummy model is imported; the dummy is positioned; an acceleration at an angle of 40-50° to the z-direction is applied; a total of ten steps. The simulation process is simple, the simulation results are more realistic and reliable, reducing seat development costs and shortening the development cycle, and is an effective means of early comfort verification in the seat R&D process.

A lifting tool for lifting, installing and / or retrieving oil and gas production equipment 2 or carbon storage equipment includes a base 710 configured to be removably connected to the equipment (2 figure 2) and a fixing device 712 mounted to the base 710 and configured to be connected to a lifting line (14 figure 2) extending to a lifting device (16 figure 2). The position of the fixing device 712 is continuously adjustable along a line extending across at least part of the base 710 so as to adjust an offset between the fixing device 712 and a centre of gravity of the lifting tool. The mechanism for adjusting the position of the fixing device 712 comprises a threaded screw 742, a housing comprising spaced apart end walls 770, 772 for mounting the threaded screw 742 such that the threaded screw extends across a gap G formed between the end walls 770, 772 and a shaft 774 mounted to extend between the end walls 770, 772 between the threaded screw 742 and the base 710. The fixing device 712 is adapted to be moved linearly along the threaded screw 742 when the screw 742 is rotated, the fixing device comprising a first threaded through aperture 776 which engages with the threaded 742 screw to move the fixing device 712 as the threaded screw 742 is rotated and a second through aperture 778 within which the shaft 774 may slide as the fixing device 712 moves along the threaded screw 742. A method of lifting, installing and / or retrieving oil and gas production equipment or carbon storage equipment using the lifting tool is also provided.

This application belongs to the field of aero-engine simulation technology, and particularly relates to a numerical simulation method and device for a contra-rotating open rotor considering nacelle coupling. The method includes: calculating the induced velocity vector generated by the nacelle at the lift line positions of two rows of propfan blades; calculating the total induced velocity of each propfan based on the induced velocity vector of each propfan, the self-induced velocity of each propfan, and the induced velocity between the two propfans, and then calculating the lift coefficient and drag coefficient based on the angle of attack; then determining the circulation distribution, and controlling the iterative cycle according to the convergence of the circulation distribution. During the cycle, the self-induced velocity of each propfan and the induced velocity between the two propfans are updated based on the circulation distribution. This application can calculate the characteristics of the contra-rotating propfan in the full operating condition range, with high calculation accuracy and fast calculation speed.

The utility model discloses a clamp tool for a wire cutting and peeling machine, belongs to the technical field of cable processing, and aims to solve the problems that a clamp tool in the prior art cannot convey a cable, the cable can be moved only by means of external power, and the use is not convenient enough. Comprising a conveying table, clamping assemblies, a peeling assembly and a telescopic air cylinder, the conveying table is of a U-shaped structure, the multiple clamping assemblies are symmetrically distributed on the inner side of the conveying table, and the peeling assembly is arranged at the end of the conveying table; the clamping assembly comprises a top plate, rotating wheels and a conveying belt, the multiple sets of rotating wheels are distributed in the length direction of the top plate at intervals, the rotating wheels and the top plate are rotationally installed, the outer walls of the rotating wheels are sleeved with the conveying belt, and the multiple sets of rotating wheels are connected in series through the conveying belt; the peeling assembly comprises two sets of side plates, a lifting plate and a cutter. The side plates are fixedly installed on the outer wall of the conveying table. According to the clamp tool for the wire cutting and peeling machine, auxiliary conveying can be carried out on a cable, continuous pulling of the cable by external force is reduced, and the peeling quality of the cable is improved.

The utility model discloses an airtight frock, including upper pressure board and lower pressure board, one side of lower pressure board is provided with the support plate, and the top of support plate is horizontally provided with the support groove, and is provided with two first clamping plates, two second clamping plates and transmission mechanism on the support plate, two first clamping plates are located at the both sides of the wire harness respectively, and the side wall of each first clamping plate is in abutment with the side wall of wire harness, and is provided with the driving piece of driving second clamping plate lifting on each first clamping plate, and two second clamping plates are located at the both sides of wire harness and are in abututment with wire harness, the utility model discloses simple structure, and reasonable in design, when the wire harness of different diameter size is detected, through the driving source, the staff adjusts the distance between two transmission blocks, and two first clamping plates and second clamping plate synchronous movement, and first clamping plate and second clamping plate are in abutment with the side wall of wire harness all the time, thereby promote the stability of wire harness, adapt to the wire harness of different size, expand the use range, and the staff operation is convenient.

A split jacket structure is installed offshore by lowering an upper jacket section onto a pre-installed lower jacket section, with coaxially-aligned legs of the respective jacket sections in mutual abutment about an interface. A grout pin positioned within tubular 5 walls of the abutting legs extends across the interface. Grippers disposed above and below the interface extend across an annulus between the pin and the tubular walls to effect engagement between the pin and the abutting legs. Grout is then injected into the annulus through the grout pin. The grippers are actuated and the grout is supplied to the pin from topside via lines that extend within the leg of the upper jacket section beside a lifting wire that suspends the pin and lowers the pin onto a stop formation in the lower jacket section. The stop formation aligns guide formations of the pin with centralising flanges in the abutting legs.

The invention relates to the technical field of automobile spare parts, in particular to a wire harness restraining device, a vehicle door and a vehicle, and the wire harness restraining device comprises a wire harness and a limiting mechanism; one end of the wire harness is arranged on the door base plate, the other end of the wire harness is connected with dimming glass installed on the lifter, the lifter can ascend or descend in the height direction of the door base plate, and the wire harness can move along with the lifter; the limiting mechanism covers the door base plate, a displacement space is formed in the face, facing the door base plate, of the limiting mechanism, and the displacement space can cover the moving path of the wire harness. According to the wire harness restraining device, the vehicle door and the vehicle, it can be guaranteed that the wire harness does not interfere with other peripheral parts during displacement, scraping is avoided, the lifting smoothness of the dimming glass can be effectively guaranteed, the service life of the wire harness can be remarkably prolonged, and meanwhile the use comfort of a user is improved.

A load management system for a wind turbine involves: a lifting device mounted in a nacelle and connectable to a load through a lifting line; and a slew frame connectable to the load when the load is at the nacelle, the slew frame operable to change an orientation of the load when the load is connected to the slew frame and the lifting device. The load management system can further have a taut wire system. The taut wire system involves a frame mounted up-tower in a nacelle, the frame having a plurality of interconnected beams mounted on both longitudinal top beams of the nacelle, the interconnected beams having a wire connector positioned outside the nacelle transversely beyond a sidewall of the nacelle. The taut wire system further has a down-tower tensioning subsystem and at least one tensioned guide wire connected to the frame at the wire connector.

The invention relates to the field of high-speed train aerodynamics and motor train unit equipment, in particular to a high-speed train lift wing and wing-train cooperative aerodynamic characteristic engineering estimation method. A high-speed train assembled with a plurality of unit groups of lift wings is taken as an object, and key technical parameters are optimized aiming at aerodynamic design and model selection of the lift wings of the high-speed train and collaborative layout on the high-speed train on the basis of referring to finite basic theories, numerical simulation and experimental tests; the aerodynamic characteristics such as the wing profile lift coefficient and distribution characteristic, the lift line characteristic and the resistance characteristic of the lift wing and wing train system work, and the wing train cooperative operation gas work interference effect are rapidly determined through engineering experience and a theoretical method, and universality evaluation and general engineering calculation of the aerodynamic characteristics of the high-speed train are achieved. Powerful reference and technical support can be provided for development and application of lifting wing systems of wheel-rail trains with the speed of 400 + km / h and high-speed maglev trains.

The utility model provides a lift line component, it includes lift line, long needle, hollow needle, lift line includes lift line fixed connection section and lift line locking lift section, lift stab is provided outside lift line locking lift section, long needle includes long needle fixed connection section and long needle holding section, long needle fixed connection section internal is equipped with mounting hole, and the hollow needle is equipped with hollow needle. The lifting line fixed connection section can be inserted into the mounting hole, a visible window is formed in the long needle fixed connection section, the hollow needle comprises a hollow needle holding section and a hollow needle puncture section, and the hollow needle puncture section and the hollow needle holding section are detachably fixed. The lifting line assembly solves the technical problems that in the using process of an existing lifting line assembly, due to the fact that a lifting line is manually inserted into a mounting hole of a long needle, the situation that the lifting line is not inserted in place easily occurs, and the lifting line falls off from the mounting hole of the long needle when the long needle drives the lifting line to move in a hole of a hollow needle. The medical beauty skin lifting device can be widely applied to medical beauty skin lifting.

A lift system for a baler implement includes a hanger including a hanger body defining a first aperture and a second aperture. The first aperture is positioned such that a center of gravity of the hanger body is located within the first aperture. The second aperture is positioned vertically below the first aperture. A lift line includes an upper end portion secured to a line actuator, and a lower end portion supporting the hanger. The lower end portion of the lift line is routed through the first aperture and the second aperture and is secured relative to the hanger such that the lift line applies a lift force to the hanger body at the center of gravity of the hanger body. The hanger includes a first pocket and a second pocket at respective ends of the hanger body shaped to capture respective lifting bands on a roll of wrap material.

The invention provides a lifting wire manufacturing device. In one embodiment, the apparatus comprises: a supply unit for supplying an original wire; a processing part which forms a multidirectional knot on the surface of the original wire supplied from the supply part to manufacture a lifting wire; the assembling part is used for assembling a pipe and a cover on the lifting wire manufactured by the processing part to manufacture a lifting wire assembly; and a packaging unit for aseptically packaging the hoist line assembly manufactured by the assembling unit, the efficiency of the manufacturing process of the hoist line can be improved by continuously executing the overall process from the processing of the original line to the aseptically packaging of the hoist line assembly. The lifting wire with high quality reliability is manufactured by performing the whole process under room temperature conditions without heating the original wire.

The utility model discloses a power line repair tower cable lifting device, which relates to the technical field of power line repair and comprises a base, rollers, a handrail and a cable storage box, the rollers are mounted at the bottom end of the base, the handrail is fixed at the right end of the upper surface of the base, and a support box fixed on the base is arranged on the left side of the handrail. Reinforcing plates are fixed to the front end and the rear end of the supporting box correspondingly, an adjusting plate is arranged in the supporting box, a transverse plate is fixed to the upper surface of the adjusting plate, a mounting frame is fixed to the bottom end of the transverse plate, a lifting assembly is mounted on the mounting frame, and stabilizing plates are fixed to the front end and the rear end of the lower surface of the mounting frame correspondingly. A bottom plate is arranged on the left side of the supporting box. According to the cable lifting equipment for the power line repair tower, by adjusting the height of the adjusting plate, the cable storage box can be conveniently lifted according to needs, and in the lifting process, a cable can be prevented from being disengaged from the interior of the cable storage box.

This invention is an adjustable core stacking auxiliary tool. Its structure includes a base with a vertical column, a diagonal beam connected to the top of the column, upper and lower crossbeams slidably connected to the column, a fixed pulley A on the diagonal beam, a fixed pulley B at the connection between the column and the diagonal beam, and pulleys A and B connected to a lifting line for the upper crossbeam with a hook. A semi-circular pull ring is fitted at the end of the upper crossbeam; the hook engaging the semi-circular pull ring stabilizes the position of the upper crossbeam and constrains the upper positioning column. An upper positioning column with adjustable horizontal position is provided along the upper crossbeam to position silicon steel sheets of different widths. The upper positioning column is connected to the upper crossbeam via a telescopic sleeve to prevent rotation. A lower positioning column is provided on the lower crossbeam, and a horizontal scale is provided along both the upper and lower crossbeams. The lower positioning column is connected to the lower crossbeam via a telescopic spring sleeve, which is equipped with a spring adjustment assembly to constrain the stacking requirements of different sheet widths and heights. The lower crossbeam is equipped with a platform height adjuster with a lower crossbeam support to meet the stacking requirements of products of different specifications.

A lifting tool for lifting, installing and / or retrieving oil and gas production equipment or carbon storage equipment. The lifting tool includes a base configured to be removably connected to the equipment, and a fixing device mounted to the base and configured to be connected to a lifting line extending to a lifting device, wherein the lifting tool is configured such that a position of the fixing device is continuously adjustable along a line extending across at least part of the base so as to adjust an offset between the fixing device and a centre of gravity of the lifting tool. A method of lifting, installing and / or retrieving oil and gas production equipment or carbon storage equipment using the lifting tool is also provided.

The present invention relates to a system for producing oil using trunklines and PO / GL skids comprising: an in-line tee for the gas-lift trunkline (ILT GL); an in-line tee for the oil production trunkline (ILT PO); at least two PO / GL skids; at least two wet Christmas trees (ANM); a gas-lift trunkline (GL); and an oil production trunkline (PO). The present invention also relates to a method for commissioning PO / GL skids via a gas-lift line, which involves the following steps and their respective sub-steps: injecting and circulating diesel; circulating water; and removing the PO / GL skid module. It further relates to a method for commissioning via ROV, which mitigates the need to interrupt gas-lift injection in the other wells of the trunkline and circulate large volumes of water and diesel, and is performed by circulating a flow of MEG.

Disclosed is a hammering device (1) comprising a hammer (2), an elongated linear carriage guide (3) including a first guide end (4) and a second guide end (5) at eithers ends of the elongated linear carriage guide (3) and a hammer carriage (6) arranged to be displaceable back and forth along the elongated linear carriage guide (3). The hammering device (1) further comprises a lifting line (7) connected to the hammer carriage (6) and to the hammer (2), so that the hammer (2) is displaced in response to displacement of the hammer carriage (6), wherein the lifting line (7) is extending from the hammer carriage (6) in a direction towards the first guide end (4). The hammering device (1) also comprises a displacement carriage (8) arranged to be displaceable back and forth along the elongated linear carriage guide (3), and displacement means (9) connected to the displacement carriage (8) and arranged to displace the displacement carriage (8), wherein the displacement carriage (8) is arranged between the hammer carriage (6) and the first guide end (4). Furthermore, a method for operating a hammering device (1) is disclosed.

The utility model discloses a multi-vehicle frame and rear axle combined rack which comprises a rack body, a first rear support, a second rear support, a third rear support and a fourth rear support which can be independently put down are arranged on the rear portion of the rack body, the first rear support and the fourth rear support form an L-series vehicle model rear support set, and the second rear support and the third rear support form a new high-series vehicle model rear support set. A first front support, a second front support and a third front support which can ascend and descend independently are arranged on the front portion, the second front support and the third front support form a two-seat / four-seat front support set, and the second front support, the third front support and the second front support jointly form a six-seat front support set. According to the utility model, the L-series rear support group and the new-high-series rear support group which can be put down independently are matched with the liftable two-seat / four-seat front support group and the liftable six-seat front support group, so that a single combined mounting rack can be adapted to five vehicle types, namely L2 seats / L4 seats / L6 seats and new-high two-seat / four seats, the combined mounting and sharing of frames and rear axles of multiple vehicle types are realized, the number of line edge tools is reduced, the line edge tidiness is improved, and the workshop space is greatly saved.

The application relates to the technical field of cable laying, and discloses a cable intelligent tensioning device, which is characterized in that an elongated top seat is sleeved on a supporting base, and fastening bolts are used to fasten the supporting base and the elongated top seat, so that the elongated top seat can be fixed at a required height; during the cable winding process, the cable is lifted by the elongated top seat, the suspended cable during the winding of the cable is subjected to a pulling force of the self gravity of the cable, the length of the suspended cable is adjusted by the height between the supporting base and the elongated top seat, the length change of the cable causes the change of the pulling force of the cable, the tensioning force of the cable is adjusted, and the effect of adjusting the tensioning force by the self gravity is achieved.

A method for mounting a tower mountable crane (TMC) to a tower of an wind turbine, for example an offshore wind turbine, said tower having a central axis extending along a length of the tower in a vertical direction, said TMC comprising a base portion which is arranged to be connectable to a tower of a wind turbine, a boom having a base end pivotally connected to the base portion and a tip end arranged distally from the base end and a lifting hook connected to a tip end of the boom via a cable controlled by a winch, the method comprising: lifting a hoist block and mounting the hoist block to an upper portion of the tower, connecting the cable between the TMC and the hoist block such that the cable extends from the TMC to the hoist block and back to the TMC, lifting the TMC using a lifting wire of an external crane, tensioning the cable extending between the hoist block and the TMC to partially support the TMC via said cable; increasing the tension in the cable until the TMC is completely supported by said cable; and disconnecting the lifting wire of the external crane from the TMC. In this way, the TMC can be safely and easily transferred to the tower.

The present invention relates to the technical field of construction equipment, and particularly relates to a lifting structure and method for controlling the lifting precision and safety of a truss. The lifting structure includes a lifting device, a horizontal displacement monitoring device, a vertical displacement monitoring device, a control system, and a steel truss. The lifting device is arranged above the designed position of the steel truss, and its output end is connected to the steel truss through a steel bracket. The horizontal displacement monitoring devices are arranged on both sides of the vertical lifting line of the steel truss, and the steel truss is in rolling connection with the horizontal displacement monitoring devices through rollers arranged at both ends of the lower chord of the steel truss. The vertical displacement monitoring device is arranged at the position of the vertical projection point on the ground of the lifting suspension point of the steel truss. The control system is in communication connection with the horizontal displacement monitoring device and the vertical displacement monitoring device. During the lifting process of the truss in the present invention, the horizontal offset situation of the truss can be viewed in real time, and adjustments can be made in time after problems are found, avoiding a large number of small-amplitude lifts and reducing the construction time.

The invention relates to the technical field of power distribution net rack line installation, in particular to a power distribution net rack line lifting device which comprises a fixed shell, a fixed plate is fixedly connected to the surface of one side of the fixed shell, two rectangular rods are slidably connected to the fixed plate, the two rectangular rods are connected through a clamping block, and the clamping block is fixedly connected with the fixed shell. Arc-shaped grooves are formed in the fixing plate and the clamping blocks; a rotating assembly is arranged in the fixed shell and comprises a servo motor fixedly installed on the inner wall of the fixed shell, the driving end of the servo motor is fixedly connected with a winding roller, and the winding roller is connected with an installation block through a steel cable. And a hook is arranged below the mounting block. According to the invention, the operation is simple, convenient and rapid, maintenance personnel do not need to manually lift up the cable by using a rope, the safety is high, the workload of the maintenance personnel is small, the consumed time is short, and the maintenance and replacement efficiency of the cable is high.

The utility model discloses a cold storage box fixing assembly for a refrigeration house and the refrigeration house comprising the cold storage box fixing assembly. The fixing assembly comprises a cold storage box serial connection piece and a hoisting piece. The cold storage box serial connection piece comprises two serial connection rods, the hoisting piece is a long-rod bolt, and the screw rod end of the long-rod bolt can penetrate through the serial connection rods from bottom to top and is fixed to a top plate of the refrigeration house. Or the hoisting piece is an external member consisting of a hook and a hoisting line, the hook is fixed on the top plate of the refrigeration house, one end of the hoisting line is fixedly connected with the hook, and the other end is fixedly connected with the tandem rod. The refrigeration house comprises a goods shelf, the goods shelf is composed of stand columns and multiple layers of cross beams, and a plurality of cold storage units are arranged between every two opposite cross beams located on the same layer. The phase change cold storage boxes are arranged on the top plate of the refrigeration house through the fixing assemblies, and the space utilization rate of the refrigeration house is effectively increased. The phase-change cold storage box can store cold energy and release the cold energy at a proper time, so that the temperature in the refrigeration house is stable, and the cold insulation effect of the refrigeration house is remarkably enhanced.