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315 results about "Low Gravity" patented technology

Spacecraft capture and docking system

InactiveUS6299107B1Robust, fail-safe and reliableReduces risk of collision and damageCosmonautic vehiclesSystems for re-entry to earthRotary stageUnderwater vehicle
A system for capturing and docking an active craft to a passive craft has a first docking assembly on the active craft with a first contact member and a spike projecting outwardly, a second docking assembly on the passive craft having a second contact member and a flexible net deployed over a target area with an open mesh for capturing the end of the spike of the active craft, and a motorized net drive for reeling in the net and active craft to mate with the passive craft's docking assembly. The spike has extendable tabs to allow it to become engaged with the net. The net's center is coupled to a net spool for reeling in. An alignment funnel has inclined walls to guide the net and captured spike towards the net spool. The passive craft's docking assembly includes circumferentially spaced preload wedges which are driven to lock the wedges against the contact member of the active craft. The active craft's docking assembly includes a rotary table and drive for rotating it to a predetermined angular alignment position, and mating connectors are then engaged with each other. The system may be used for docking spacecraft in zero or low-gravity environments, as well as for docking underwater vehicles, docking of ancillary craft to a mother craft in subsonic flight, in-flight refueling systems, etc.
Owner:HONEYBEE ROBOTICS

Bioreactor apparatus and cell culturing system

A bioreactor apparatus and cell culturing system is provided for the automated cultivation and processing of living cells remotely both on earth and in low gravity which utilizes a generally cylindrical reactor vessel that may be optionally rotated about its cylindrical axis while allowing the entrance of fresh or recycled fluid and the removal, optionally, of spent medium, medium to be recycled or filtered or unfiltered medium for the collection of samples. A method of exchanging gases between the culture medium and ambient gases is provided. A fresh-medium storage bag and peristaltic pump is used for batch feeding, perfusion or sample collection. An enclosure and manifold representing an additional level of chemical containment and a series of pinch valves for the periodic collection of samples of suspended cells or cell-free medium is disposed therein together with a humidity control system. The bioreactor is computer controlled in order to control all functions including rotation of the reactor vessel, feeding fresh medium, perfusing the reactor vessel, timed collection of samples of fluid from the reactor, selecting between collecting cells or cell-free supernatant. A sealed compartment for sample-collection bags provides a level of chemical containment for safety. A sealed external housing is used for all components of the device except the power supply and computer. An external loop and electronic video microscope provides real-time and recorded and/or transmitted observation of cells in the suspension.
Owner:TECHSHOT INC

Cable drive robot device for simulating zero-gravity and low-gravity environment

The invention provides a cable drive robot device for simulating the zero-gravity or low-gravity environment. The cable drive robot device comprises a basic frame, cables, cable drive units, cable guide devices, a simulation loading platform, sensors and a control system. The eight cables are arranged in a spatially-symmetric mode, wherein four cables are arranged at the upper portion and the other four cables are arranged at the lower portion. The cables are lengthened or shortened through the drive units driven by motors according to instructions of the control system. The control system conducts closed-loop or semi-closed-loop control over the length and the force of the cables according to force and displacement data given by the sensors, so that movement of the simulation loading platform in the zero-gravity or low-gravity environment is simulated. Meanwhile, one or more cables can be selected and used for being overlapped to apply external interference force. According to the experiment device, the defect that work space is limited or dynamism is insufficient in a traditional simulation method is overcome and six-freedom-degree movement control and stress simulation of the simulation loading platform in the zero-gravity or low-gravity environment can be achieved.
Owner:TSINGHUA UNIV +1

Bionic aircraft

The invention discloses a bionic aircraft. Series parallelogram telescopic main wings (2, 3) are symmetrically assembled on the left and the right above a body (1), bidirectional parallel parallelogram telescopic flat tail wings (4) are assembled in back of the body (1), undercarriage shock absorbers (40, 41, 42) arranged in three points are assembled below the body (1), undercarriage wheels (5, 6, 7) are assembled at one end of each of the shock absorbers (40, 41, 42) respectively, a driving cabin (8) and a safety umbrella cabin (9) are assembled above the body (1), the driving cabin (8) is positioned in front of the safety umbrella cabin (9), a solid rocket jato (10) is assembled at the lower gravity center position of the body (1), and the central axis of the solid rocket jato (10) and the central axis of the body (1) form an included angle of 10 to 15 degrees downwards. A nozzle faces to the lower rear part, a nose (11) is assembled in front of the body (1), and a power transmission mechanism and an operating system are assembled in the body (1). Because of the adoption of a bionic technology, the aircraft can simulate various flying postures of birds; the amplitude and frequency modulation transmission mechanism is favorable for rising, landing and flying of the aircraft; by adopting human-machine hybrid power, the aircraft has no pollution; because of good folding property of main rings, the aircraft is convenient for transportation; and the aircraft can be used for sports, escape, downhill race, patrol and the like.
Owner:姚金玉

Screw pile, thread pile piling equipment and piling method

This invention relates to screw stake, making screw stake equipment and the making method. The making screw stake equipment is mainly composed of the engine body, the oil cylinder, the hydraulic electric engine, the automation equipment and the transfer piping. The power head is installed on the engine body base's stand support. The hydraulic electric engine is installed on the engine body's base. The hydraulic electric engine connects with the power head through the power head. The drill pipe's clamp apparatus connects with the power's removable clamp apparatus. The transfer piping connects with the inner drill pipe. The automation equipment separately connects with the hydraulic electric engine and the oil cylinder. This invention has the following advantages: the power output saves electricity and time, it enlarges the equipment's application range and the construction speed excels other similar inventions evidently; the equipment adopts the extensible drill pipe, the drill's drilling depth largely improves; the three independent drill heads' structure has the unique ability of thrice enlarging aperture; it realizes the revolution and the raising to keep synchronous and non- synchronous; it adopts low gravity center pile frame, the equipment's weight is reduced evidently, the safety improves; it realizes the stake's stirring and evidently improves the stake's uniformity
Owner:卓典设计(海南)有限公司

Large double-curve steel structure cooling tower for power plant

The invention discloses a large double-curve steel structure cooling tower for a power plant. The large double-curve steel structure cooling tower comprises linear inclined vertical columns, intersected nodes and reinforcing rings, wherein a steel structure cooling tower framework consists of a vertical line rotary array formed by encircling the linear inclined vertical columns around an upper circle center and a lower circle center of the tower; intersected positions of the linear inclined vertical columns are the nodes; and along the height direction of the tower, 3 to 5 reinforcing rings are required to be arranged. The tower is over 150 meters high, and the diameter of the lower part of the tower is about 150 meters. The large double-curve steel structure cooling tower is a novel steel structure cooling tower replacing a concrete thin-shell double-curve cooling tower, is suitable for indirect cooling units with the capacities of 125 MW or over 125 MW, can be applied to those extremely cold places in which the concrete cooling tower cannot be used, and has the characteristics of low gravity, high construction speed, simple foundation treatment operation, low comprehensive manufacturing cost, high anti-seismic and anti-wind performance, low post-maintenance cost and the like.
Owner:NORTHWEST ELECTRIC POWER DESIGN INST OF CHINA POWER ENG CONSULTING GROUP

Device and method for simulating low gravity

ActiveCN104118580AReal-time measurement of tension changesAchieve constant tension controlCosmonautic condition simulationsStress conditionsThree degrees of freedom
The invention discloses a device and method for simulating low gravity. The device for simulating low gravity mainly comprises multiple constant-tension control systems and a movable and rotary three-degree-of-freedom comprehensive platform, a control subsystem, a main hanging structure and a multi-hanging-point combined control system, wherein the constant-tension control systems are used for controlling the tension of hanging ropes within the range of the vertical operating stroke according to a command, the multiple constant-tension control systems are connected to the lower portion of the movable and rotary three-degree-of-freedom comprehensive platform and are connected with a simulated low-gravity object through the hanging ropes, the posture parameter of the multiple constant-tension control systems serve as the control information of the movable and rotary three-degree-of-freedom comprehensive platform after being coupled, the main hanging structure is arranged on a servo comprehensive platform, and the multi-hanging-point combined control system calculates the current hanging force values of all hanging points and guarantees that the hanging force meets the set gravity requirement according to the position posture of the simulated low-gravity object, and the hanging force passes through the center of mass of the simulated low-gravity object. According to the low-gravity simulating device, the stress condition of all movable parts of moving mechanisms and the stress condition of the positions where the movable parts are connected can be represented truly so that the device can be adapted to the real-time change of the center of mass.
Owner:SHANGHAI AEROSPACE SYST ENG INST

Joint type manipulator low gravity compensation system

The invention provides a joint type manipulator low gravity compensation system comprising a support, an upper platform, a right-angle type tracking platform, a polar-coordinate type tracking platform, a gravity compensation system body, a suspending device and a control system. The upper platform is mounted on the support, the right-angle type tracking platform is capable of moving corresponding to the X and Y directions of the upper platform, the polar-coordinate type tracking platform is mounted below the right-angle type tracking platform and is capable of rotating around the Z-axis of the right-angle type tracking platform or moving in the X and Y directions with the polar-coordinate type tracking platform, the gravity compensation system body is mounted on the top of the right-angle type tracking platform and the bottom of the polar-coordinate type tracking platform, the suspending device is connected between the gravity compensation system body and a joint type manipulator, and the control system is use for monitoring and controlling the components. The right-angle type tracking platform and the polar-coordinate type tracking platform are combined, multiple joint manipulator complex movement tracking is implemented, the system can be adaptive to movement tracking of manipulators of carriers with different postures, multiple manipulator suspension and multiple suspending point coordinated movement are implemented, gravity compensation is low, and accuracy is high.
Owner:TIANJIN AEROSPACE ELECTROMECHANICAL EQUIP RES INST

Micro-low-gravity simulation apparatus and simulation test method

The invention provides a micro-low-gravity simulation apparatus and test method. The simulation apparatus comprises a magnetic guiding panel, a rotating mechanism, an arc guide rail, a suck-back typebearing, a pulley block, a suspension mechanism and a fixed pulley; the magnetic guiding panel and the arc guide rail are respectively horizontally arranged, and the center of the arc guide rail is disposed on a rotating axis of the rotating mechanism; the suck-back bearing is stabilized on a noncontact balance point of a bottom surface of the magnetic guiding panel; the suspension mechanism is suspended on the suck-back bearing by virtue of the pulley block, one end of a rope is fixed on a sliding block of the arc guide rail, and the other end passes by the first fixed pulley to be provided with a weight block in a suspension manner. By adopting the micro-low-gravity simulation apparatus of the invention, a low-cost micro-gravity simulation experimental environment is provided, the suck-back type bearing is combined with an air floatation technology and an electromagnetic technology, the micro-low-gravity simulation apparatus can be adsorbed on the lower surface of the magnetic guiding panel and can move freely in a bottom plane of the magnetic guiding panel; and moreover, the micro-low-gravity simulation apparatus has the advantages of no friction and no contact, so that the testinterference is greatly reduced, and the accuracy of a test simulation result is further improved.
Owner:TIANJIN AEROSPACE ELECTROMECHANICAL EQUIP RES INST

Cable driven space suspension assembly state simulation device with adjustable attitude

The invention provides a cable driven space suspension assembly state simulation device with the adjustable attitude. The device is a cabled driven mechanism with the adjustable attitude, wherein thecable driven mechanism is connected with a to-be-assembled part and driving sensing units through flexible cables and can be used for simulating product assembly under the working condition environments such as space zero gravity or low gravity. The device is characterized by being composed of a supporting frame, a servo unit, the flexible cables, the driving sensing units, a constant tension unit, wire rulers and the like. Driving units are formed by connecting servo motors, speed reducers and couplers in series. The servo unit is composed of the constant tension unit, the driving unit and the like. The constant tension unit provides constant tension and is used for completely or partially offsetting the gravity of the assembled part and simulating the space zero gravity or low gravity environments. The driving units are used for driving and controlling motion of the servo unit. The driving sensing units are composed of the driving units, tension and pressure sensors and the like andis used for enabling the assembled part to achieve external force sensing and attitude adjusting.
Owner:TSINGHUA UNIV

Nine-rope driving robot device for simulating zero gravity and low gravity

A nine-rope driving robot device for simulating zero gravity and low gravity comprises a foundation framework, ropes, a rope driving unit, a rope guiding device, a simulation load platform, a sensor and a control system. According to the nine-rope driving robot device for simulating the zero gravity and the low gravity, a nine-rope redundant driving scheme is adopted, the nine ropes are distributed in a mode with six ropes being arranged at the top and three ropes being arranged at the bottom; extension and shortening of the ropes are achieved through a driving unit which is driven by a motor according to a command of the control system; the control system achieve closed-loop or semi-closed-loop control on the length and force of every rope according to the force and pose position data from the sensor; meanwhile the upper six ropes can be adopted to control and simulate the pose position and movement of a load platform, the lower three ropes perform force tensioning or compensation control, and accordingly the nine-rope driving robot device for simulating the zero gravity and the low gravity has the capability of stimulating six degrees of freedom under the zero gravity or low gravity environment in large working space and meanwhile can apply the distributing force in a superposition mode through the lower three ropes or mote ropes. The nine-rope driving robot device for simulating the zero gravity and the low gravity is good in isotropy performance and has an application potential in other fields such as rehabilitation equipment.
Owner:TSINGHUA UNIV

Single column maritime wind power generation device with circumferential stabilizing column

The invention provides a single column maritime wind power generation device with a circumferential stabilizing column, and belongs to the technical field of ocean energy resource utilization. The single column maritime wind power generation device with the circumferential stabilizing column comprises a wind power generation set, a single column base, the circumferential stabilizing column, a supporting structure, a berthing system and a fixed ballast system; the wind power generation set is fixed on the single column base; the circumferential stabilizing column is fixed at the periphery of the single column base; both ends of the supporting structure are connected with the circumferential stabilizing column and the single column base respectively; the middle part and the bottom of the single column base are connected with the berthing system and the fixed ballast system respectively; and the berthing system is connected with the seabed. By arranging the circumferential stabilizing column, a larger waterline plane inertial moment can be obtained in a smaller waterline plane area; meanwhile, due to the low gravity center of the single column base, the stability requirement is met and the high water power performance is gained; therefore, a stable, economic and flexible floating base is provided for the wind power generation set, so the single column maritime wind power generation device with the circumferential stabilizing column is particularly applicable to deep water regions of the open sea.
Owner:SHANGHAI JIAO TONG UNIV

Device for simulating microgravity on lunar surface

The invention relates to a device which is used for assisting solar cell wings, a mast and mechanical arms on a lunar vehicle in unfolding to carry out testing, and particularly discloses a device for simulating a microgravity environment on the lunar surface. The device for simulating the microgravity environment on the lunar surface comprises a moving mechanism, a framework, a servo mechanism, a hanging mechanism and a balance weight mechanism, wherein the low-gravity simulating device is formed by the moving mechanism, the framework, the servo mechanism, the hanging mechanism and the balance weight mechanism together. According to structural features and motion features of a lunar vehicle mechanism product, hanging tension is provided by a pulley system formed by movable pulleys and fixed pulleys and balance weight of weights, the 1 / 6g gravity of a tested product can be eliminated, or zero gravity of the tested product can be achieved, the movable pulleys slide on guide rail rods of the servo mechanism at the same time, and can carry out servo together with the tested product, and the 1 / 6g low-gravity environment or the zero gravity environment can be provided in the whole process. The device for simulating the microgravity environment on the lunar surface is convenient to move, can be rapidly disassembled, built and assembled, can be rapidly located in place and work, and is convenient to operate and low in cost.
Owner:SHANGHAI AEROSPACE SYST ENG INST

Traveling device used between adjacent train bodies of motor train unit and capable of reducing floor height

The invention belongs to the field of connection systems for every two adjacent carriages of a railway vehicle and relates to a traveling device used between adjacent train bodies of a motor train unit and capable of reducing the floor height. The traveling device is a low-gravity-center compact common bogie of a brand new form. An oil damper of the traveling device is used for restraining relative rolling pendulum vibration between the top of a carriage A and the top of a carriage B. The two ends of a common connecting device are fixed to underframe end beams of the two adjacent carriages respectively. Four air spring installation positions arranged on two sides are uniquely arranged on a common framework so as to contain sleeper beam middle through grooves. Under the condition that the existing fixed distance of each carriage of the motor train unit is kept unchanged, the traveling device can reduce the total number of bogies of the motor train unit and reduce the manufacturing cost of the motor train unit; moreover, while the un-obstruction performance of the interior floor of the motor train unit is improved, the overall gravity center and the floor height of the motor train unit are lowered, and passengers can conveniently get on or off the motor train unit. In addition, the traveling device remarkably improves the bend curve passage capacity and the turning maneuvering performance of the motor train unit.
Owner:CRRC CHANGCHUN RAILWAY VEHICLES CO LTD

Sling-type low-gravity simulation tension control buffer mechanism and adjustment method

The invention relates to a sling-type low-gravity simulation tension control buffer mechanism and an adjustment method, wherein one end of a swing rod is connected with an axle center of a balance wheel and the other end of the swing rod is connected with an axle center of a winding drum; one end of a sling is wound on the winding drum and the other end of the sling passes through a wheel groove of the balance wheel to be connected with a work piece, of which the tension needs to be controlled; the winding drum and a motor shaft of a torque motor are coaxially installed and the balance wheel can swing around the motor shaft; the radius of the balance wheel is the same with that of the winding drum; a section, between a line outlet point on the winding drum and a line inlet point on the balance wheel, of the sling is parallel to the axis of the balance wheel; a hinge point on the swing rod is connected with one end of a steel wire rope and the other end of the steel wire rope passes through a rope sheave located above the swing rod to be connected with one end of a tension spring; the other end of the tension spring and the lower end of a rope sheave upper seat are separately connected with a support seat; and the rope sheave is installed on the upper end of the rope sheave upper seat. The suspension-type low-gravity simulation tension control buffer mechanism and the adjustment method of the invention are an important part of a constant tension control subsystem and can be used to obtain low equivalent stiffness near a large tension working point in a large range of buffering movement.
Owner:HARBIN INST OF TECH
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