57results about How to "Reduce thrust" patented technology

The utility model discloses a compact and stable type automatic plate edge banding machine, which relates to the technical field of plate edge banding, and comprises a rack, a chain plate conveying belt, a guide pressing plate assembly, a pre-milling assembly, a gluing assembly, a plate joint strip assembly, a flush assembly, a fine trimming assembly, a scraper assembly and a polishing wheel. The compact and stable plate edge sealing equipment is formed, the independent and integrated gluing assembly and the integrated cavity are adopted, the coaxiality is good, the gluing uniformity cannot be affected, the front end and the tail end of a plate joint strip are cut off in a tracking mode, the cutter thrust is small, the stability is good, the upper portion and the lower portion of the plate joint strip are simultaneously refined, resonance influences are mutually reduced in an abutting mode, vibration is reduced, and the edge trimming precision is high; the fine adjustment spring is arranged, so that the distance between the fine trimming mechanism and the scraper mechanism can be finely adjusted, stable pressure is formed between the fine trimming mechanism and the scraper mechanism and the plate joint strip, the distance between the plate joint strip and a fine trimming cutter or a scraper is conveniently controlled, and fine trimming or scraping is more stable and better in effect.

The invention relates to the technical field of water conservancy projects, and discloses a water conservancy project construction dust falling device which comprises a barrel and a base, a supporting frame is mounted in the barrel, a tail mounting frame is mounted at one end of the barrel, a filter screen is mounted on the tail mounting frame, and a plurality of connecting frames distributed annularly are mounted at the other end of the barrel; the ends, away from the cylinder, of the connecting frames are fixedly connected with the fixing cylinder. The problem that the spraying distance of the device is shortened due to the fact that the wind power of rapid airflow generated by the fan blades is reduced under the upwind condition is solved, the gathering and scattering state of the multiple spraying heads can be adjusted in a self-adaptive mode according to the wind power of the rapid airflow blown out by the fan blades, use is convenient, and in addition, the spraying distance of the device is shortened. The gathering and scattering states of the multiple sprays can be adaptively adjusted through the wind power of the airflow blown out by the fan blades, the gathering and scattering states of the multiple spraying heads can be actively controlled through the adjusting and controlling assembly, automatic and manual dual control is achieved, and the using effect is good.

The invention relates to the technical field of semiconductor chip production, and particularly discloses semiconductor chip production and processing equipment which comprises a machine body, a workbench and a supporting plate, the workbench and the supporting plate are fixedly installed on the inner wall of the machine body, a placing table used for placing a wafer is fixedly installed at the top of the workbench, the supporting plate is located above the workbench, and an air cylinder is fixedly installed at the top of the workbench. The output end of the air cylinder penetrates through the supporting plate in a sliding mode and is fixedly provided with a driving plate, the bottom of the driving plate is provided with a rotary dispatching mechanism, a rail stripping mechanism and an annular cutting mechanism, and a follow-up ejection mechanism is arranged between the placing table and the driving plate. The whole process is completed in a full-automatic manner and is realized by utilizing the intermittent period of scheduling movement of the laser head, and the cutting time is not occupied, so that the stripping efficiency and the stripping quality are greatly improved, and the wafer production period does not need to be prolonged at the same time.

The invention discloses a coke guide grid of a coke barrier car, and belongs to the technical field of coke barrier cars in coking plants, the coke guide grid comprises the coke barrier car and the coke guide grid, the upper part of the coke barrier car is provided with a track, the coke guide grid is connected with a hanging roller sliding on the track, and the coke barrier car is provided with a driving mechanism for driving the coke grid to move; a compensation plate is arranged on the side wall of the end, close to the furnace mouth, of the coke guide grid in a sliding mode, high-temperature asbestos cloth is detachably connected to the compensation plate and abuts against the side wall of the furnace mouth, a moving assembly used for driving the compensation plate to move is arranged on the coke guide grid, and a dust removal device used for removing dust is arranged on the coke barrier vehicle. The application has the effects of reducing the coke receiving gap between the joint surfaces of the coke guide grid and the furnace mouth, further reducing the leakage of pollutants such as coke smoke and the like, and enhancing environmental protection.

The invention relates to the technical field of unmanned aerial vehicle launchers, in particular to a marine unmanned aerial vehicle launcher. The marine unmanned aerial vehicle launcher comprises a supporting frame, a bottom bracket, a telescopic piece, an angle adjusting assembly, a lifting frame, a front supporting assembly and a rear supporting assembly. The two ends of the telescopic pieces are rotationally connected with the supporting frame and the bottom bracket correspondingly, and the multiple telescopic pieces are arranged at intervals; the angle adjusting assembly is arranged on the bottom bracket and is in transmission connection with the lifting frame; the front supporting assembly and the rear supporting assembly are arranged on the lifting frame at intervals in the length direction of the lifting frame, and the front supporting assembly and the rear supporting assembly are both used for being connected with the unmanned aerial vehicle. The front supporting assembly locks or releases the lug rods through the lock catches, so that the levelness of the bottom bracket can be adjusted by adjusting the lengths of the multiple telescopic pieces, it is guaranteed that the levelness of the bottom bracket is within the set range, and therefore the launching accuracy of the unmanned aerial vehicle is guaranteed.

The present invention discloses a stapler cartridge assembly of a linear stapler. The stapler cartridge assembly comprises three rows of upper staple cavities and three rows of lower staple cavities which are staggered in the upper and lower halves of the stapler cartridge, so that the maximum forces exerted on staple pushers inserted in the staple cavities during the staple forming process are staggered with each other. The first staple pushers are simultaneously inserted in the first and second rows of staple cavities, and the second staple pushers are inserted in the third row of staple cavities. The first inclined surface used for pushing the first staple pushers has a smaller slope than the second inclined surface used for pushing the second staple pushers. Thus, it can be ensured that the forward thrust of the staple pusher block is smaller when the same upward thrust is generated. In addition, the highest points of the first inclined surface and the second inclined surface on the staple pusher block are staggered with each other, so that the time when the first staple pusher and the second staple pusher reach the highest point can be staggered, so that the three rows of suture staples are prevented from reaching the highest point at the same time, thereby further reducing the thrust required by the staple pusher block, making the entire suturing process smoother, relieving the doctor's surgical fatigue, and optimizing the suturing effect.

The invention relates to the technical field of machine tool precision control, in particular to a device for adjusting the friction torque of a ball screw, a machine tool for adjusting the friction torque of the ball screw and a method for adjusting the friction torque of the ball screw. The device comprises a ball screw, a prefabricated grinding nut and a jacking piece, the prefabricated grinding nut is used for grinding the ball screw, the shape of the prefabricated grinding nut is matched with that of the ball screw, and the prefabricated grinding nut is tightly attached to a ball screw raceway; the jacking piece is connected with the prefabricated grinding nut and drives the prefabricated grinding nut to be close to or away from the ball screw. When the nominal diameter of the ball screw changes in the working process, the ball screw is ground through the prefabricated grinding nut. The device can control the friction torque of the ball screw nut pair in real time, the stability of a machine tool in the operation process is effectively improved, and the machining quality is improved.

The invention relates to the technical field of valves, in particular to a fire safety valve which comprises a valve body, a valve clack is arranged in the valve body, and a support is installed at the top of the valve body. An electromagnetic driving device is installed on the upper portion of the valve body, an electromagnet pull rod is installed at the output end of the electromagnetic driving device, a spring mechanism is arranged on the lower portion of the electromagnet pull rod and comprises a spring, a spring trigger, a spring push rod and a trigger buckle plate, and the bottom end of the electromagnet pull rod is connected with the trigger buckle plate. A plunger and a trigger are arranged on the lower portion of the spring mechanism, and the bottom of the trigger is rotationally connected with the outer wall of the support. According to the fire-fighting safety valve, the electromagnetic driving device allows an external controller to remotely activate the valve when necessary, and it is ensured that when a fire occurs, even if a traditional triggering mechanism fails, a water spraying fire extinguishing system can be rapidly started. The thermal fusing trigger line serves as a second fuse, and when the environment temperature rises to a preset threshold value, the thermal fusing trigger line is automatically fused, so that the spring mechanism is released, and the valve is opened.

The utility model discloses a novel small-caliber fixed ball valve seat, relates to the technical field of ball valve seats, and aims to solve the problems that in order to achieve a good sealing effect of a small-caliber ball valve at present, the number of springs needs to be increased, thrust needs to be increased by enlarging the pressure difference area of the valve seat, sealing is formed, the valve torque is increased, and the service life is prolonged. The problems that in the valve opening and closing process, the specific pressure of a sealing ring is directly increased due to the fact that thrust of a spring and a medium on a valve seat is increased, the friction loss of the sealing ring is increased, the sealing performance of the sealing ring is affected, and finally sealing fails are solved. Valve seats are symmetrically arranged on the two sides of the ball body, triangular ring lock covers are arranged below the ends, close to the ball body, of the valve seats, elastic triangular rings are arranged between the valve seats and the sides, close to the ball body, of the triangular ring lock covers, compression spring grooves are formed in the four corners of the inner side of the valve body, and compression springs are arranged in the compression spring grooves.

The utility model aims to provide a large-stroke three-axis camera driving device. The large-stroke three-axis camera driving device comprises a protective shell, a base, a carrier assembly, an upper cover, an elastic sheet connecting piece, a focusing driving assembly and an anti-shake driving assembly, the anti-shake driving assembly comprises a first anti-shake driving magnet, a second anti-shake driving magnet and an anti-shake driving coil; wherein the first anti-shake driving magnet, the second anti-shake driving magnet and the anti-shake driving coil are correspondingly arranged. The utility model relates to the technical field of camera devices, in the OIS anti-shake direction, a mode that the first anti-shake driving magnet and the second anti-shake driving magnet which are arranged on the upper layer and the lower layer are matched with the anti-shake driving coil located in the middle of the two magnets is adopted, and the thrust of the double-layer magnets can be twice that of single-layer driving, so that the stroke in the OIS direction is greatly improved; and the requirements of long stroke and large weight of the VA motor can be met simultaneously.

The invention discloses a hot water circulating pump with couplings, and relates to the field of centrifugal pumps, the hot water circulating pump comprises a base, the top surface of the base is fixedly connected with a base plate, a protective cover, a first support and a pump body, and the end face of the pump body is provided with a machine seal gland. Therefore, maintenance cost is reduced, potential safety hazards are reduced, the coaxiality calibration process is simplified, repeated measurement and adjustment of the position of the motor are not needed, time and labor are saved, coaxiality can be guaranteed, overload protection can be achieved, overload burning of the motor can be avoided, safety accidents are reduced, the operation safety of the whole hot water circulation system is improved, and the service life of the hot water circulation system is prolonged. And overload protection can be adaptively changed according to the size of the motor, so that coaxiality calibration and overload protection adjustment are synchronously carried out, secondary measurement and adjustment are not needed, and the automation degree of the device is improved while time and labor are saved.

The invention relates to the technical field of wire harness production and wire separation, and discloses a wire separation device for refrigerator sensor wire harness production, which comprises a wire separation device body, and one side of the wire separation device body is provided with a tension adjusting mechanism, a fixed conveying mechanism, an unwinding cutting mechanism and a height adjusting mechanism. The tension adjusting mechanism comprises a supporting seat, a first bearing, a threaded cylinder, a first worm gear, a threaded rod, a limiting telescopic rod, a fixing plate, a first rotating rod and a guide roller. The threaded rod drives all parts on the supporting frame to ascend and descend, so that tension adjustment can be conducted according to actual wire conveying requirements, wires can be kept at the stable position in the conveying process through appropriate tension, shaking and deviation caused by looseness or over-tightness are avoided, and therefore when the wire separating device body conducts wire separating operation in the follow-up process, the wire separating efficiency is improved. The cutter can accurately act on the specific position of the wire, the position precision of branching is ensured, and the branching deviation is reduced.

The utility model relates to a cutting machine for building material detection, which comprises a cutting knife, a servo machine, a mounting frame, an adjusting assembly, an auxiliary roller and a limiting assembly, and is characterized in that an electric hydraulic rod is telescopically deformed by personnel according to the thickness of a building material through an arranged limiting adjusting structure to drive a resisting structure to move left and right; and the rolling balls are arranged on the side end faces, making contact with the building materials, of the vertical plates, so that the pushing force of personnel can be reduced when the personnel push the building materials to move along the material pushing openings in the cutting operation process of the personnel.

A two-way self-adaptive throttle valve at least comprises two three-way structures and two one-way self-adaptive throttle valve bodies or valve elements, and the two one-way self-adaptive throttle valve bodies or valve elements are fixedly connected in parallel in the reverse direction through the two three-way structures to form an integral structure with two connectors. The one-way self-adaption throttling valve or valve element at least comprises a valve body, a valve seat, a valve needle, a valve needle spring, an adjusting spring and a limiting block, the valve seat and the limiting block are arranged in the valve body, the valve needle spring, the valve needle, the adjusting spring and the like are sequentially arranged in the valve body between the valve seat and the limiting block, the valve needle spring is arranged on the outer side of the front section of the valve needle in a sleeving mode, and the limiting block is arranged in the valve body. The adjusting spring is arranged between the valve needle and the adjusting limiting block, and the valve needle can axially move in the valve body under the action of force to close or open the valve port. According to the utility model, the variable-flow two-way throttling can be realized, the damping effect of the valve needle spring and the adjusting spring is realized, the valve needle is small in vibration and high in reliability, and the control problem of the throttling mechanism can be simplified and automated.

The utility model relates to the technical field of automobile anti-collision, in particular to a foamed aluminum filling device for an anti-collision beam. The device comprises a bottom plate, a notch, a sliding rail, a driving air cylinder, a lower rack, a sliding gear, a sliding block, an inserting opening, an upper rack and a push plate. The notch is formed in the bottom plate, the two sliding rails are located on the two sides of the notch respectively, the driving air cylinder is installed at one end of each sliding rail, the lower rack is arranged in the notch, and the lower rack is located in the extending direction of the output end of the driving air cylinder. The sliding gear is arranged at the output end of the driving air cylinder, the sliding block is located above the sliding gear, the insertion openings are formed in the edges of the two sides of the sliding block and connected to the sliding rails in an inserted mode, the upper rack is arranged below the sliding block, the lower rack is meshed with the sliding gear, and the sliding gear is arranged on the sliding block. The push plate is installed on one side of the sliding block.

The utility model discloses a brewing funnel and a coffee machine. The brewing funnel comprises a funnel body and a filter screen assembly connected in the funnel body in a floatable mode. The part, arranged in the funnel body, of the filter screen assembly is matched with the inner wall of the funnel body to form a containing cavity used for containing coffee powder. The end, away from the containing cavity, of the filter screen assembly partially extends out of the funnel body, and after the part, extending out of the funnel body, of the filter screen assembly is subjected to acting force facing the containing cavity, the part can apply acting force to coffee powder so that the coffee powder can be separated from the containing cavity. Through the design of the floatable filter screen assembly, coffee powder can be actively pushed to be separated from the containing cavity, and the problem that the coffee powder in a traditional funnel adheres to a filter screen is solved; after use, the residual coffee powder can be easily removed only by pressing the filter screen assembly, the residual powder does not need to be manually dug, and the cleaning time and workload are greatly reduced; design is ingenious, the structure is relatively simple, and manufacturing and maintenance are easy; a user can clean the coffee powder only through simple pressing, and operation is simple and visual.

The utility model discloses a valve capable of automatically shutting off after pressure balance after a flow path is manually opened, and relates to the technical field of balance valves. The check valve comprises a valve body, wherein a mounting mechanism, an adjusting mechanism, a connecting mechanism, a flow blocking mechanism and a switching mechanism are arranged on the valve body; the mounting mechanism comprises a groove formed in the valve body, a first threaded groove is formed in the inner wall of the groove, a threaded sealing sleeve is in threaded connection with the inner wall of the first threaded groove, a rotating rod is slidably connected with the inner wall of the threaded sealing sleeve, and the diameter of the rotating rod is the same as that of the inner ring of the threaded sealing sleeve. A sealing sleeve is connected to the inner wall of the threaded sleeve in a sliding mode, a sliding groove is formed in the sealing sleeve, and the caliber of the sliding groove is the same as that of the inner ring of the adjusting rotating rod.

The invention provides an adjusting device, method, system and equipment for adjusting states of three red lines of an engine, and relates to the field of airworthiness verification tests of the engine, the adjusting device comprises a swirler, the swirler is arranged in an air inlet channel of the engine, and the swirler is arranged perpendicular to the axis of the engine. The swirler comprises a swirl guide vane which can rotate in the radial direction of the engine, so that the pre-swirl angle of the swirler is adjustable. According to the invention, the thrust of the engine is effectively reduced by controlling the rotation of the rotational flow guide vane, adjusting the pre-rotation angle of the swirler and reducing the flow of the outer culvert airflow of the engine, so that the engine is prevented from generating excessive thrust, and the thrust of the engine does not exceed the red line state too much when the rotating speed of the rotor reaches the red line state; the strength and the service life of key components such as an engine fan, a gas compressor and a turbine are ensured.

The invention belongs to the technical field of optical imaging equipment, and particularly relates to a lens driving device which comprises a base, a support, a frame and a carrier. A first direction coil and a second direction coil are respectively arranged on the base; the frame is arranged on the support, a first-direction magnet is arranged on one side of the bottom end of the frame, and after the first-direction coil is powered on, the frame and the carrier can move in the first direction relative to the support; the support is arranged on the base, a second-direction magnet is arranged on one side of the bottom end of the support, and after the second-direction coil is powered on, the support, the frame and the carrier can move in the second direction relative to the base. According to the invention, the power supply of the OIS coil is directly supplied by the built-in circuit of the base, the power supply wiring difficulty is reduced, and when the carrier moves in the first direction, the thrust of the OIS anti-shake action required by the carrier is smaller, so that the installation size of the magnet can be obviously reduced or the thrust of the OIS anti-shake action can be increased, and the lens can realize a larger-angle anti-shake effect in the first direction.

Provided is an integrated and compact fluid control valve that corresponds to different fluid pressures, controls fluid at high speed with high accuracy in the case of low-pressure fluid flow, also exhibits high sealing force at the time of valve closure in the case of high-pressure fluid flow to reliably prevent leakage, can suppress a decrease in sealing performance to improve durability, and at the same time, can suppress the consumption of compressed air for driving while flowing fluid with a stable Cv value to prevent changes in flow rate. The divided pistons (23) are arranged in series with respect to the valve seat (13) in a resilient state by a plurality of spring members (24) that differ in spring load, an air supply port (25) is formed in the actuator (11), each piston is independently raised and lowered in the actuator with a predetermined stroke (Y1, Y2) by the compressed air from each air supply port or the resilient force of each spring member, and the valve body can be provided to seal the flow path with different sealing forces corresponding to the lowered state of each piston.

The invention relates to the technical field of bridges. According to an existing main arch and lattice pier structure, transverse connecting rods are arranged between main pipes so as to improve the structural rigidity, and meanwhile the stress of nodes at the two ends of each connecting rod needs to be reduced in order to meet the energy consumption and stress requirements under the earthquake action. According to the preferable scheme, concrete is poured into the transverse connecting rods, firstly, the concrete can laterally support the steel pipes, and joint stress of the steel pipes can be reduced when the concrete and the steel pipes jointly participate in stress; and secondly, compared with a steel structure, the concrete-filled steel tube structure has considerable ductility and better stability. However, the scheme needs to reduce the contribution of concrete to the axial rigidity of the section, and meanwhile, as the transverse connecting rod is wide in distribution range, a steel pump pipe or a cableway bucket needs to be used in a traditional construction scheme, the construction steps are tedious, and the progress is slow; therefore, the invention provides a concrete formula suitable for the small concrete-filled steel tube rod piece, the minimum elastic modulus is about 85% of that of common concrete, the passing time of the V-shaped funnel is less than 10 seconds, and the construction method for the concrete in the small rod piece and the corresponding construction tool are provided in combination with structural characteristics.

The utility model discloses a window body connecting structure and a curtain wall horizontal sliding window, relates to the technical field of doors and windows, and adopts the technical scheme that the window body connecting structure comprises a first connecting component and a second connecting component, a middle component is arranged between the first connecting component and the second connecting component, the middle component comprises a limiting rod group, and the limiting rod group is a foldable or extendable rod body combination; and the limiting rod group can enable the first connecting main body and the second connecting main body to be close to or far away from each other in a parallel posture. The window body connecting structure has the beneficial effects that the window body connecting structure in the scheme enhances the connecting stability while ensuring the connecting flexibility, and avoids the problem of unstable swinging caused by the dead weight of the window sash and the high-rise wind pressure. Long-term stable and reliable operation of the curtain wall horizontal sliding window is guaranteed, the service life of the window body connecting structure is prolonged, the maintenance cost and the use risk are reduced, and the curtain wall horizontal sliding window connecting structure has high popularization value and economic benefits in practical application.

The utility model relates to the technical field of coal processing, and discloses automatic coal classifying and screening equipment which comprises two matching plates, a mounting plate, four open holes, four servo motors and four sliding tables. Through the cooperative use of the sliding table, the linkage assembly, the guide assembly, the gear, the sliding shaft, the connecting piece, the inner wheel shaft and the outer wheel bushing, when the sliding shaft moves between the two guide plates, a bearing can reduce the friction force generated when the sliding shaft moves, and the sliding shaft moves to drive the connecting piece to move; the connecting piece moves to drive the sliding table to receive the materials, so that the problems of high cost, long time consumption, low efficiency, intensive manual screening labor, high efficiency and the like due to the fact that good products and unavailable products are screened by a manual or simple mechanical method and mounting mechanical arms in various areas are solved; the screening accuracy is influenced by fatigue and proficiency of operators, and in addition, a mechanical method also needs regular maintenance, so that the screening accuracy is limited.

The utility model relates to the technical field of animal husbandry feeding equipment, and particularly discloses an arching blanking device and a feeding system.The arching blanking device comprises a material blocking cylinder, one end of the material blocking cylinder is connected with a shifting fork, the other end of the material blocking cylinder is connected with a chassis in a sliding mode, the arching blanking device further comprises an impeller connected with the chassis in a sliding mode, and one end of the chassis is provided with a feeding port; a discharge hole is formed in the other end; when the shifting fork rotates, the material blocking barrel is driven to rotate, and then the impeller is driven to rotate, so that the impeller carries feed on the base plate from the feeding port to the discharging port. According to the arching discharging device designed by the invention, when livestock eat, the shifting fork is arched without too large force, and meanwhile, the problem of friction between the shifting fork and a trough in the prior art is solved.

The present application relates to the field of graphitization furnace, in particular to a vertical series connection graphitization furnace discharging method, the pushing mechanism drives the graphite electrode at the bottom of the furnace body to slide downwards to be flush with the lower edge of the inclined entrance at the lower part of the discharge channel, the high-temperature plug valve is opened, the heat preservation material flows out of the furnace body along the discharge channel; when the heat preservation material of the furnace core drops to be flush with the lower edge of the graphite electrode at the top of the furnace body, the pushing mechanism drives the graphite electrode at the top of the furnace body to slide upwards to leave the furnace body; when the heat preservation material of the furnace core drops to the uppermost crucible and the crucible connection, the high-temperature plug valve is closed, and after the uppermost crucible is cooled, it is removed from the furnace body from above; the high-temperature plug valve is opened, and the heat preservation material of the furnace core flows out of the furnace body along the discharge channel; the heat preservation material is discharged, and the crucible is removed; when the heat preservation material of the furnace core is emptied, the lowermost crucible is removed; the pushing mechanism drives the graphite electrode at the bottom of the furnace body to slide downwards to leave the furnace body. The heat preservation material is directly discharged from the bottom of the furnace body without passing through the material suction crane, which reduces the cooling time and improves the production efficiency.

The application discloses a filtering device for industrial wastewater discharge, which comprises a sewage channel, an intercepting mechanism for removing large-particle suspended matters is arranged in the sewage channel, supporting mechanisms for preventing the intercepting mechanism from falling back are arranged on both sides of the intercepting mechanism, and unlocking mechanisms matched with the supporting mechanisms are arranged on the side surfaces of the supporting mechanisms; the filtering device has the advantages that the structure is simple, the design is reasonable, suspended matters can be naturally captured and guided upward through the arrangement of the intercepting body, the suspended matters can be caused to be lifted up at the free end after being accumulated to a certain degree under the cooperation of the supporting mechanisms, and the suspended matters are convenient to remove, the self-locking of the connecting rod is ensured through the arrangement of the blocking plate, the limiting plate and the spring, the intercepting body is prevented from falling off, the mechanism is simplified through the arrangement of the movable cavity groove, the space in the sewage channel is saved, and in addition, the combination of the main pull rope and the auxiliary pull rope realizes the quick unlocking function, and the cleaning work after interception is facilitated.

The present invention relates to the field of control technology of non-electric variables, and in particular to a ship control method and system based on optimal dynamic distribution of steering torque, the method comprising the following steps: system layout; establishing a kinematic model of the ship system; establishing a mechanical model of the ship system; the actual steering angle controller of the servo transmissions the rudder speed control signal to the rudder speed controller; the rudder speed controller transmits the total torque control signal to the dynamic torque distribution controller; the dynamic torque distribution controller performs optimal dynamic distribution of the torque on the total torque control signal and transmits it to the electromagnetic torque controller of the servo electric cylinder drive motor; the electromagnetic torque controller of the servo electric cylinder drive motor controls the voltage change of the corresponding servo electric cylinder drive motor to realize the extension and retraction of the servo electric cylinder. The method and system provided by the present invention realize the optimal distribution of the steering torque of the drive unit under any actual steering angle of the servo, and improve the response speed and operation stability of the system under working conditions such as start-stop, reversing and sudden load disturbance.

The invention discloses an autophagy type space grading electric combination propulsion system and method. The autophagy type space grading electric combination propulsion system comprises a chemical propulsion module and an electric propulsion module which are coaxially arranged from inside to outside. The electric propulsion module comprises a cathode, an insulating sleeve, an anode, a power supply and a transmission device; the cathode is a metal structure of the chemical propulsion module except the propellant; the anode is coaxially and fixedly arranged on the periphery of the tail of the insulating sleeve in a sleeving mode and can synchronously and axially slide along with the insulating sleeve. A space chemical propulsion mode and an electric propulsion mode are ingeniously combined, the characteristic that a pulse plasma propulsion technology adopts metal and other solid working media as propellants is utilized, and after space chemical propulsion fuel is used up, the structural material of the space chemical propulsion fuel serves as an electric propulsion working medium to achieve re-propulsion of the autophagy type space grading electric combination propulsion system. The spacecraft can meet the requirements of high thrust, high specific impulse, long service life and the like, space pollution can be reduced, and environmental protection is promoted.

The present invention mainly relates to the field of passenger safety technology, and in particular to a vehicle seat robot that can counteract centrifugal force and prevent impact. The robot includes an active anti-sway structure and a control module; the active anti-sway structure includes a first base plate, a support seat, a swing frame, a plurality of swing arms and a first screw motor assembly, the lower side of the support seat is fixedly mounted on the first base plate, the upper side of the support seat has a first mounting seat, the outer side of the swing frame has a plurality of pins, one end of each swing arm is rotatably connected to one of the pins of the swing frame, and the other end of each swing arm is rotatably connected to a first mounting seat, the first screw motor assembly is mounted on the first base plate and has a first screw motor, the movable end of the first screw motor assembly is connected to the swing frame, and the first screw motor assembly is used to drive the swing frame to roll according to the first control signal sent by the control module to compensate for the centrifugal force.