24results about How to "Improve anti-offset performance" patented technology

The invention discloses a magnetic coupling structure with an anti-offset characteristic, a method and a wireless power transmission system. The magnetic coupling structure comprises a transmitting end and a receiving end, a receiving coil is of an axial symmetry structure and is divided into an inner receiving coil and an outer receiving coil, and the outer receiving coil is formed by sequentially connecting four sub-coils with the same size in series; the four sub-coils are arranged along the circumference and define an inner receiving coil placing area, an inner receiving coil is arranged in the inner receiving coil placing area, and the inner receiving coil and the outer receiving coil can be decoupled mutually due to the winding mode and the space structure of the inner receiving coil and the outer receiving coil. When the receiving end and the transmitting end generate relative position offset, the mutual inductance fluctuation of the system can be maintained in a small range. According to the wireless electric energy transmission system formed by the magnetic coupling structure, an LCC-S compensation topological structure is adopted, the inner receiving coil and the outer receiving coil are connected in series after passing through respective full-bridge rectifier filters, voltage output superposition complementation can be achieved, and the stability of the total output voltage is guaranteed.

The utility model discloses a hydraulic shearing device adopting a hydraulic oil cylinder to push a connecting rod mechanism to achieve efficient closing, and relates to the technical field of hydraulic shears. The device comprises a connecting plate, the top of the connecting plate is fixedly connected with an oil cylinder, the bottom of the oil cylinder is fixedly connected with a piston rod, the bottom of the piston rod penetrates through the top of the connecting plate and extends to the bottom of the connecting plate, the bottom of the piston rod is fixedly connected with a connecting seat, and connecting shafts are arranged on the two sides of the surface of the connecting seat. And the surface of the connecting shaft is movably connected with a connecting joint. Through the innovatively designed connecting arm and connecting joint combined mechanism, the thrust of the oil cylinder is mechanically amplified, meanwhile, the angle ratio of the connecting rod is optimized, the blade can still keep 90% of effective shearing component force at the tail section of the stroke, the problem that the force at the tail section of a traditional direct-pushing type hydraulic shear is attenuated is solved, and the working efficiency is improved. And the shearing efficiency and the adaptability to high-strength materials are remarkably improved.

The application discloses a driving wheel rotating structure, which comprises a rotating mechanism, a mounting plate, a rotating support assembly and a roller assembly, wherein the rotating mechanism comprises a rotating shaft, a gear and a rotating disc, the gear is fixedly connected to the end of the rotating shaft, and the rotating disc is provided with a gear ring which is engaged with the gear; the upper surface of the mounting plate is provided with a second bearing, the lower surface of the mounting plate is provided with a third bearing, and the rotating shaft penetrates through the second bearing and the third bearing; the rotating support assembly comprises a first support seat and at least one first bearing arranged in the first support seat, and the first support seat is located between the mounting plate and the rotating disc; and the roller assembly is fixedly connected with the rotating disc and rotatably connected with the rotating support assembly. The second bearing and the third bearing are arranged to form a double support structure of the rotating shaft, thereby improving the stability of the rotating shaft and avoiding the driving wheel from being stuck during the steering process.

The utility model relates to the technical field of protective films, and discloses an EPE protective film with a wear-resistant function, which comprises a lower film, an upper film is adhered to the upper surface of the lower film, and a connecting component is arranged between the lower film and the upper film. The connecting component comprises a penetrating hole, a connecting steel wire, a lower notch, a first arc-shaped groove, a lower protruding strip, a second arc-shaped groove, an upper protruding strip, a first arc-shaped strip, an upper notch and a second arc-shaped strip. The connecting component is arranged and matched with the multiple sets of lower notches, first arc-shaped grooves, lower protruding strips, second arc-shaped grooves, upper protruding strips, first arc-shaped strips, upper notches and second arc-shaped strips to be arranged between the lower film and the upper film in a linear array mode, so that the contact portion between the upper film and the lower film has the larger contact area and the anti-deviation effect in the horizontal direction; and due to the spirally arranged connecting steel wire, the EPE protective film can be reset in time to maintain the original shape when being subjected to transverse friction, so that the anti-friction effect of the EPE protective film is improved.

This invention provides a triaxial force sensor, comprising an elastic body and a strain gauge assembly. The elastic body includes connecting cylinders at both ends and a strain force detection area in the middle. The strain force detection area in the middle of the elastic body is configured as a weak connection structure, which includes at least four strain beams. The area enclosed by the strain beams is arranged in a square shape on the projection plane. The strain gauge assembly is attached to each strain beam. This invention can accurately measure forces in three mutually perpendicular directions and has the advantages of simple structure and fast response speed.

This utility model relates to the field of fixed installation structure technology, and discloses a fixed installation structure for water supply, drainage, heating and ventilation systems in buildings. It includes a support plate, a transmission rod that passes through and is rotatably connected to one end of the support plate, a worm gear that is fixedly connected to one end of the transmission rod, and rotating rods that pass through and are rotatably connected to both ends of the inner wall of the support plate. A worm wheel is passed through and fixedly connected to one end of one rotating rod, and the worm wheel meshes with the worm gear. A synchronous pulley is passed through and fixedly connected to the other end of each rotating rod, and a synchronous belt is provided between the synchronous pulleys. Limit blocks are passed through and fixedly connected to both ends of the outer ring of the rotating rod. In this utility model, the linkage between the transmission rod, rotating rod, worm wheel, synchronous pulley, synchronous belt, worm gear, rope, support rod, first spring, and connecting rod can accurately fix the pipe in a suitable position, improving the installation accuracy and quality.

The hydraulic equipment based on the prestress stand column structure comprises a base (101), a workbench (102), a stand column (103), a movable cross beam (104) and a fixed cross beam (106), and is characterized in that the stand column (103) is of a plate frame structure, the plate frame structure is composed of four coamings (1), a plurality of rib plates (2), an upper tensioning plate (3), a lower tensioning plate (3) and tensioning steel bars (4), the rib plates (2) are fixed in the coamings (1) to form a grid structure, and the upper tensioning plate (3) and the lower tensioning plate (3) are fixed on the workbench (102). Each grid structure is provided with a tensioning steel bar (4), the upper end and the lower end of each tensioning steel bar (4) are loaded with prestress through a conical anchorage device (5) and are fixed on the corresponding upper tensioning plate (3) and the corresponding lower tensioning plate (3), and the upper tensioning plate (3) and the lower tensioning plate (3) are installed at the upper end and the lower end of the surrounding plate (1). The hydraulic device is light in structure, uniform in stress distribution, convenient to manufacture and excellent in fatigue performance, the overall performance of the hydraulic device is remarkably improved, and the manufacturing cost is reduced.

The present application relates to an elastic body strain structure for a load sensor, including: a first fixing seat, a second fixing seat and a strain column; the first fixing seat and the second fixing seat are respectively located at the two ends of the strain column; the strain column is an I-beam structure, the strain column includes a web and two flange plates, the opposite ends of the web are respectively connected to the first fixing seat and the second fixing seat, and the opposite ends of the flange plates are respectively connected to the first fixing seat and the second fixing seat. The present application designs the strain column as an I-beam structure, which greatly improves its ability to resist eccentric loads and restrains the local deformation generated in the area where the upper end face is subjected to concentrated force. Because of the characteristics of the I-beam structure itself, the unbalanced stress will be redistributed, the web will generate considerable tension and hinder the increase of deflection, so that the overall force of the strain column is more reasonable and balanced, thereby improving the anti-eccentric load capacity of the designed load sensor.

The present invention discloses an easy-to-assemble double-frame hydraulic press frame and an installation method. The easy-to-assemble double-frame hydraulic press frame comprises a first frame, a second frame, a first support foot boss, a second support foot boss, a first support foot, a second support foot, a first small screw and a second small screw. The first support foot boss is fixed to the left and right sides of the lower beam of the first frame, the second support foot boss is fixed to the left and right sides of the lower beam of the second frame, the first support foot is fixed to the lower end of the first support foot boss, the second support foot is fixed to the lower end of the second support foot boss, and a plurality of the first small screws and a plurality of the second small screws penetrate the first frame and the second frame and are locked by a locking member. The present invention reduces the on-site assembly cost, shortens the installation time, improves the installation efficiency, and when installing the small screw, no specially designed hydraulic tensioner is required to assist, so the installation is more convenient.

The application belongs to the technical field of nursing equipment, and particularly relates to a multifunctional lying transfer machine. The transfer machine comprises a chassis, a lifting device, a seat frame and a gas spring power assisting device. The bottom of the chassis is provided with a plurality of walking wheels, and at least one walking wheel is provided with a brake executing mechanism. The lifting device comprises a vertically arranged lifting column and at least one set of linear guide rod assembly. The linear guide rod assembly is arranged in parallel with the lifting column and is connected between the chassis and the seat frame, so as to enhance the stability and anti-unbalance capacity during lifting, effectively inhibit the jam or shaking caused by the wear of components due to long-term weight use. The front part of the seat frame is hingedly connected with a leg support frame, and the rear part is connected with a backrest frame through a hinge shaft. The backrest frame is a rigid frame structure, and a set of gas spring power assisting devices are arranged between the backrest frame and the seat frame. The two ends of the device are connected with the seat frame and the backrest frame through external hinging, so as to provide initial power when adjusting the backrest angle and significantly reduce the manual operation force.

The present invention discloses a wireless power transmission system with high anti-offset characteristics, including a power supply E, a transmitting unit P1, a transmitting unit P2, a receiving unit S1, a receiving unit S2, a rectifier filter circuit and a load resistor connected in sequence. The transmitting unit P1 includes a transmitting coil T1 and an impedance unit Z01 connected in series, the transmitting unit P2 includes a transmitting coil T2 and an impedance unit Z02 connected in parallel, the receiving unit S1 includes a receiving coil R1 connected in series and an impedance unit Z03, and the receiving unit S2 includes a receiving coil R2 and an impedance unit Z04 connected in parallel. The transmitting coil T1 and the receiving coil R1 are connected by a mutual inductance M v Coupling, the transmitting coil T2 and the receiving coil R2 are connected by mutual inductance M i Coupling. Using mutual inductance M v With M i The characteristics of simultaneous increase or decrease under offset conditions greatly reduce the output fluctuation caused by the change in the relative position of the transmitting coil and the receiving coil, ensuring stable output under high offset conditions.

The present invention discloses a wireless power transmission topology with strong anti-offset performance based on multi-frequency energy parallel transmission. The control module outputs a driving square wave signal of a high-frequency inverter, so that the output voltage of the high-frequency inverter is a mixed superposition of dual-frequency or multi-frequency voltages. After passing through the primary multi-frequency shared compensation network, the dual-frequency or multi-frequency current simultaneously excites the primary transmitting coil, and the multi-frequency energy is transmitted to the receiving module in parallel through magnetic field coupling. The receiving module realizes dual-frequency or multi-frequency energy separation and decoupled transmission, and outputs AC voltage or current with each frequency respectively, which are rectified and filtered respectively and then combined and output to power the load. The design of the resonance parameters makes the output at different frequencies inconsistent with the change trend of mutual inductance. After the combined output, an output voltage or current that is insensitive to the change of mutual inductance is obtained, which greatly reduces the output fluctuation caused by the change in the relative position of the transmitting coil and the receiving coil, and ensures the stable output of the wireless power transmission system under high-offset conditions.

The invention relates to the technical field of hydraulic oil cylinders, and discloses an external guide structure of a hydraulic oil cylinder, which comprises a cylinder body and a telescopic rod mounted in the cylinder body and capable of stretching and retracting, and further comprises an adjusting sleeve mounted on the outer wall of the cylinder body and capable of sliding and adjusting on the outer wall of the cylinder body; the fixed sleeve is fixed to the outer wall of the telescopic rod, the sliding sleeve is installed on the outer wall of the cylinder body in a sliding mode, the adjusting sleeve is located between the sliding sleeve and the fixed sleeve, at least two guide rods are fixed between the sliding sleeve and the fixed sleeve, and the adjusting sleeve is provided with guide holes for the guide rods to penetrate through and guide in a sliding mode. The sliding guide effect on the telescopic rod can be achieved through sliding fit between the guide rod and the guide hole in the adjusting sleeve, the deflection force borne by the telescopic rod can be shared through the guide rod, the stress degree of the telescopic rod is reduced, the telescopic rod can be prevented from deviating, and the service life of the telescopic rod is prolonged. And meanwhile, the telescopic stroke of the telescopic rod is not influenced.

This invention discloses an adjustable sliding pipe support, comprising a concrete support, multiple embedded parts, an arc-shaped support plate, an arc-shaped sliding plate, and multiple sets of clamping mechanisms. The embedded parts are respectively embedded in the concrete support; the arc-shaped support plate is supported by all the embedded parts; the arc-shaped sliding plate is placed on and slidably mounted on the arc-shaped support plate, which has multiple first limiting parts; the multiple sets of clamping mechanisms are arranged along the axial direction of the arc-shaped sliding plate; each clamping mechanism includes a fixed seat, a first adjusting screw, a universal joint mounting seat, a universal joint, and a clamping plate, the clamping plate having an arc-shaped surface for contacting the pipe to be supported. This invention solves the problem of pipe rolling, ensuring the stability of pipes of various sizes during long-term operation, reducing stress changes caused by rolling, and extending the service life of the pipe.

The utility model discloses an isolation relay, which comprises an input driving chip, an output driving chip and a transformer arranged on a PCB (Printed Circuit Board), the input driving chip is used for receiving an input signal, modulating the input signal to generate a modulation signal, and transmitting the modulation signal to the output driving chip through the transformer; and the output driving chip is used for demodulating the modulation signal and then outputting the modulation signal. According to the scheme, the high-temperature performance of the isolation relay can be improved, the consistency of high-temperature and low-temperature characteristics is ensured, and the service life is prolonged.

The utility model provides a Tibetan black tent with geometric patterns, which belongs to the technical field of tents and comprises a bearing mechanism, tent cloth, a support frame spliced on the outer side of the tent cloth through ropes and an auxiliary positioning component arranged at the bottom of the support frame. The adjusting assembly of the positioning mechanism is matched with the elastic buffering structure to achieve accurate tension control, and uneven tightness caused by traditional peg fixing is avoided; a tension adjusting ring and sewing connecting cloth of the connecting mechanism form a rapid locking system, and it is ensured that geometric patterns are accurately aligned, wind is resisted and displacement is avoided; the overall stability of the bottom supporting assembly and the auxiliary positioning assembly is enhanced through rigid connection and a limiting structure, the heavy yak hairy tarpaulin can still be kept at the preset position under complex terrains and wind interference, the whole system converts the traditional building process depending on experience into standardized mechanical operation, and the positioning efficiency and the anti-deviation capacity are greatly improved.

This utility model relates to the field of DHA algal oil filtration technology, and more particularly to a filtration device for DHA algal oil, including a housing, a moving mechanism on the side of the housing, a thawing mechanism disposed within the moving mechanism, a first filtration mechanism fixedly installed below the thawing mechanism, and a second filtration mechanism fixedly installed below the first filtration mechanism. This utility model employs a split-type thawing box design in the thawing mechanism, which can quickly and evenly melt solidified algal oil raw materials, avoiding DHA oxidation loss caused by localized overheating. The moving mechanism, in conjunction with a sliding groove, allows for flexible pulling of the thawing box. The solenoid valve of the first filtration mechanism can precisely control the coarse filtration flow rate, while the second filtration mechanism further removes micron-sized impurities through silk mesh gradient filtration. The synergistic effect of the two stages ensures high light transmittance and low acid value of the algal oil. Real-time monitoring of the filtration process is achieved through a glass observation window and a weighing plate, and support legs and anti-slip pads enhance the equipment's resistance to displacement in vibration environments.

The eight-shaft linkage six-rod parallel radial plastic forming robot comprises a left lathe bed and a right lathe bed, a driving shaft is connected with the left lathe bed, and the other end of a corresponding connecting rod is matched with a main shaft seat through ball pair constraint; six groups of connecting rods are simultaneously mounted on a spindle seat in parallel, the spindle seat is connected with a left lathe bed through a damping rod, a spindle is mounted on the spindle seat and driven by a main speed reducer and a main motor, a mandrel is mounted on the spindle, the front end of a slider is connected with a main oil cylinder, and the slider and a driving slider of the main oil cylinder can move along the axis of the guide rail under the constraint of the guide rail. A workpiece rotary table is installed in the center of the sliding block and can rotate on the sliding block along the axis, and rotation is driven by a workpiece speed reducer and a workpiece motor which are installed on the sliding block. The method can realize one-time radial integral forming of the complex thin-wall high-rib cylinder part, has the characteristics of simple manufacturing process, low manufacturing cost, high manufacturing strength and the like, and is particularly suitable for integral forming of parts with extremely large length-diameter ratios, high rib-thickness ratios and the like in aerospace.

This utility model discloses a wireless charging system with a magnetic core structure. The magnetic core structure is respectively disposed at the transmitting end and the receiving end. The magnetic core structure includes: a first magnetic core and a second magnetic core connected together; there is a height difference and / or spacing between the first magnetic core and the second magnetic core, such that after the coil is wound around the magnetic core structure, the first magnetic core and the second magnetic core generate magnetic fields in opposite directions; in the working state: the first magnetic core located at the transmitting end is opposite to the second magnetic core located at the receiving end, and the two have different working areas; the second magnetic core located at the transmitting end is opposite to the first magnetic core located at the receiving end, and the two have different working areas. Based on the magnetic core structure and wireless charging system of this application, it can provide high anti-misalignment for wireless charging, reduce the "alignment" requirements of the transmitting end and the receiving end, and improve working efficiency and charging convenience.

A kind of tilting-pad radial partial load bearing for ultra-supercritical steam turbine unit.It relates to the field of steam turbine unit sliding bearing.When existing actual load is inconsistent with design load, it leads to uneven temperature of left and right pads, insufficient oil film thickness, and easily causes wear and vibration problems.The tilting-pad radial sliding bearing includes bearing shell, upper supporting pad, lower supporting pad, stop pin, gasket set, cylindrical gasket, adjusting gasket, supporting pin, spring, oil seal ring, check valve, oil baffle, oil injection port.The supporting part adopts four-pad tilting-pad structure, and the relative position of fulcrum of pad is LC / L=0.6 (LC is the arc length of fulcrum position of pad, and L is the arc length of pad).Eccentric support is realized by the angle of deflection pad and bearing center line, and the deflection angle A is 7.5°.The utility model is applied to tilting-pad radial partial load bearing for ultra-supercritical steam turbine unit.

The present invention discloses an array coupler control structure of an array wireless power transmission system, comprising a control structure No. 1, a control structure No. 2, a control structure No. 3 and a control structure No. 4; the control structure No. 1 controls four non-adjacent transmitting coils in the array transmitting coil structure; the control structure No. 2 controls one transmitting coil located at the center of the array transmitting coil structure; the control structure No. 3 controls two non-adjacent transmitting coils among the remaining four transmitting coils in the array transmitting coil structure; the control structure No. 4 controls the remaining two transmitting coils; a corresponding control method is also disclosed; an optimized combination of a circuit structure and a control structure is achieved, the spatial position is reduced, the leakage inductance between coils is reduced, a higher transmission efficiency and transmission power are ensured, and the overall anti-offset performance is improved.

The invention discloses a rack structure for improving unbalance loading resistance of a fine blanking press machine, and relates to the field of rack structures of fine blanking press machines, the rack structure comprises a fine blanking press machine main body, the top of the fine blanking press machine main body is fixedly connected with a bearing table, and the top of the fine blanking press machine main body is fixedly connected with a supporting frame; the stamping device comprises a supporting frame, a guide groove is formed in the supporting frame, a hydraulic rod is fixedly connected to the top of the supporting frame, a stamping plate is fixedly connected to the output end of the hydraulic rod, and a guide plate is fixedly connected to the top of the stamping plate. The guide plates are driven to stably slide down along the guide grooves, so that the stamping plate stamps a workpiece placed on the bearing table, the stamping reaction force can be fed back to the stamping plate and transmitted to the supporting frame through the two guide plates, the supporting frame can be stressed in a balanced mode, and the effect of improving the unbalance loading resistance of the rack is achieved.

This utility model belongs to the field of material delivery and provides a material delivery device for drones, comprising: a housing; a rotating body movably located at the center of the housing, with several storage compartments formed within the rotating body, each storage compartment having a corresponding opening and closing plate for opening or closing the storage compartment; a receiving mechanism detachably connected to the top wall of the housing, the receiving mechanism being adjustable in its relative position to the housing to adapt to the assembly and disassembly of external drones; and a drive mechanism located within the housing, the drive mechanism including an active component and a driven component distributed on both sides of the rotating body. Compared with the prior art, the advantages of this utility model are that it integrates multiple independent storage compartments through an integrated rotating body, combines a dual-gear meshing transmission system to precisely control the rotation angle, and is equipped with a detachable quick-change receiving mechanism to adapt to different drone models, achieving lightweight, high-precision, and rapid response multi-point continuous and accurate delivery of emergency supplies.

The invention discloses an anti-offset flat solenoid coil wireless power transmission system, which comprises a transmitting end solenoid and a receiving end solenoid, and is characterized in that the transmitting end solenoid comprises a first magnetic core which is integrally in a flat plate shape, and two ends of the first magnetic core are provided with auxiliary magnetic cores which extend along the edge; the auxiliary magnetic core protrudes upwards relative to the first magnetic core. The first magnetic core is provided with first coils wound in the length direction of the auxiliary magnetic cores, the first coils are distributed between the two auxiliary magnetic cores at intervals, and the protruding height of the first coils relative to the first magnetic core is smaller than that of the auxiliary magnetic cores. The anti-offset flat solenoid coil wireless power transmission system and the parameter optimization method thereof have the advantages of being reasonable in structural design, high in adaptive capacity, low in implementation cost, capable of improving transmission efficiency and anti-offset capacity and the like.