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79 results about "Low Gravity" patented technology
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Counterweight-based gravity offload system
Systems and methods simulate reduced-gravity environments using passive counterweight architectures that maintain a substantially constant offload force throughout the user's range of motion. The system may include one or more multi-segment articulated arms, each incorporating a cable routing system that preserves effective cable length during articulation. By routing the cable through coaxial apertures at the joints and through pulley assemblies encapsulated within hollow arm tubes, the offload force remains stable regardless of arm orientation. The system may include a magnetic singularity-avoidance mechanism employing opposed magnets positioned on adjacent arm segments. The magnetic detent biases the arm segments away from singular loading geometries, prevents uncontrolled rotation, and substantially reduces cable twist accumulation. Further embodiments may include gantry-based, trolley-based, or tilting-beam structures for enlarged workspace coverage, and optional friction-offset motors, low-stretch cables, or large-diameter pulleys to minimize hysteresis and maintain greater uniformity of the offload force.
Owner:ATLAS DEVICES LLC
Engineering machine for aloft work and steering method thereof
The invention discloses engineering machinery for aloft work and a steering method of the engineering machinery, and relates to the field of optimization design. The construction machine includes: a chassis; the steering type tire is connected to the chassis; one end of the connecting frame is connected to the chassis, the other end of the connecting frame is connected to the working platform, and no rotary mechanism exists between the connecting frame and the chassis; the balancing weight is connected to the end, away from the working platform, of the chassis, the balancing weight is movable, and the gravity center heights of the balancing weight at least at two different positions are different. Compared with the prior art, a rotary mechanism between the connecting frame and the chassis is omitted, the balancing weight and the connecting frame are directly installed on the chassis, the engineering machine obtains smaller mass and size through the movable balancing weight structure installed at the lower gravity center position, the stability of the engineering machine is improved, the cost is optimized, and transportation and storage are convenient.
Owner:ZOOMLION INTELLIGENT ACCESS MASCH CO LTD
Ventilation wall test system and method for Mars aircraft test
The invention provides a ventilation wall test system and method for Mars aircraft testing, and the system comprises a space environment simulator which can simulate the low-pressure and low-temperature environment of Mars, a gravity unloading device which is installed in the space environment simulator, a ventilation wall assembly which is used for generating a controllable simulation wind field, and a ventilation wall driving device. The wind wall assembly is arranged in a wind guide structure of the space environment simulator and comprises a plurality of fan array units, each fan array unit is of a multi-layer series connection structure, the distance between the adjacent fan array units can be adjusted according to the wind speed of the controllable simulation wind field, and each fan array unit comprises a plurality of fans arranged at non-equal intervals. The Mars transient wind field where the to-be-tested unmanned aerial vehicle is located is accurately simulated, and accurate simulation of distribution of the Mars wind field in time and space and low gravity of the Mars is achieved.
Owner:BEIJING INST OF SPACECRAFT ENVIRONMENT ENG
Comprehensive environment simulation test device and test method
PendingCN122017128ACosmonautic condition simulationsWeather/light/corrosion resistanceThermodynamicsTest sample
The invention relates to the technical field of environment test, and discloses a comprehensive environment simulation test device and method, the device comprises a vacuum tank, a vacuum unit, a first temperature adjusting mechanism, a second temperature adjusting mechanism and a control system, and an opening at one end of the vacuum tank is provided with a sealing door capable of being opened and closed; the vacuum unit is used for adjusting the vacuum degree in the vacuum tank; the first temperature adjusting mechanism is used for adjusting the internal temperature of the vacuum tank; the second temperature adjusting mechanism is used for lowering the internal temperature of the vacuum tank; a micro-low gravity environment simulation module is arranged in the vacuum tank, and the micro-low gravity environment simulation module is used for driving the test sample to rotate in the first direction while rotating in the axial direction, so that the test sample can be simulated to be tested in a comprehensive environment with high / low temperature alternation, different vacuum degrees and different micro-low gravity factors in a single device; and the cost is saved and the occupied space is small.
Owner:CHINA BUILDING MATERIALS ACADEMY CO LTD +1
Smoke bomb for fire drill
The smoke bomb comprises an outer shell, an inner shell, a cooling filter layer, a smoke filling material and a control assembly, the inner shell is located in the outer shell and used for containing the smoke filling material, the space between the inner shell and the outer shell is filled with the cooling filter layer, and the control assembly is located between the inner shell and the outer shell. The control assembly is located at the inner top end of the outer shell, the bottom end of the inner shell is connected with a balance weight assembly, a protection assembly is installed on the outer side of the top end of the balance weight assembly, multiple sets of through grooves are formed in the circumferential wall of the upper portion of the inner shell at equal intervals, and a release assembly is arranged at the position, below the through grooves, in the inner shell. The smoke bomb can stably stand on various complex terrains such as stair steps, slopes and smooth grounds through the composite structure of the low-gravity-center counterweight design and the large-bottom-area anti-skid rubber mat, and safety accidents and exercise distortion caused by toppling are fundamentally eradicated.
Owner:HUNAN XUNBAO MILITARY TRAINING EQUIP CO LTD
Self-adaptive grading energy consumption type rock wall anchoring system and folding and unfolding inflatable residential cabin
The invention relates to a self-adaptive graded energy dissipation type rock wall anchoring system and a folding and unfolding inflatable residential cabin, which comprise an anchoring assembly, a buffer assembly, an inhaul cable and a prestress adjusting assembly, and realize stable anchoring of a folding and unfolding framework inflatable structure in a lunar lava pipe environment. The anchoring assembly is tightly combined with a rock wall drill hole in an expansion mode, and basic anchoring force is provided for the system. The buffering assembly is arranged in the sliding cavity and can absorb environment energy to achieve graded energy consumption when the local rock wall is slightly shocked. Reliable connection between the anchoring assembly and the prestress adjusting assembly is achieved through the inhaul cable. The prestress adjusting assembly adjusts the prestress of the inhaul cable to counteract stress fluctuation caused by factors such as environment deformation and temperature change. The technical problem that an anchoring structure needs to give consideration to both stability and adaptability in special environments such as low gravity, high radiation and easy slight shock of the moon is solved, and a core guarantee is provided for safe deployment of a folding and unfolding framework inflatable structure in the lunar lava tube.
Owner:INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI
dual specific gravity cleaner
This invention provides a compound gravity separator, comprising a frame; at least two gravity platforms spaced apart vertically; wherein each pair of adjacent gravity platforms is connected by a transmission support arm; the upper end of the transmission support arm is hinged to the upper gravity platform, the lower end of the transmission support arm is hinged to the lower gravity platform, and the middle part of the transmission support arm is rotatably connected to the frame; and a drive mechanism, mounted on the frame and located around the at least two gravity platforms. The compound gravity separator provided by this invention achieves vibration of multiple gravity platforms driven by a single drive unit through a stacked arrangement and a reverse linkage design of the transmission support arms. This eliminates multiple independent drive systems, significantly reducing costs and energy consumption; utilizes the inertial cancellation principle of reverse motion to significantly reduce overall machine vibration; the stacked structure reduces the floor space compared to traditional series layouts, and the material falls by gravity, eliminating the need for intermediate lifting and conveying devices.
Owner:SHIJIAZHUANG JULITE MACHINERY
Gas magnetic overhanging type micro-low gravity test air floating workbench for inhibiting residual magnetism and eddy current interference
PendingCN121990192ACosmonautic condition simulationsStructural/machines measurementMagnetic disturbanceMagnetic bearing
The invention discloses an air-magnetic overhanging type micro-low gravity test air-floating workbench capable of inhibiting residual magnetism and eddy current interference. The air-magnetic overhanging type micro-low gravity test air-floating workbench comprises a rigid bearing framework and a functional composite material layer. The rigid bearing framework is made of non-magnetic high-specific-stiffness aluminum alloy, and mechanical supporting and magnetic field isolation are achieved. And the functional composite material layer is compounded by uniformly dispersing and consolidating corrosion-resistant nickel-based soft magnetic particles in a non-magnetic matrix, and is used as a gas-magnetic coupling working interface. The adopted nickel-based soft magnetic particles have high saturation flux density, low coercive force, high resistivity and good chemical stability, it is ensured that the functional composite material layer formed by the nickel-based soft magnetic particles has lasting and reliable working surface performance, and residual magnetism interference force and eddy current damping force are fundamentally eliminated on the premise that needed vertical adsorption force is maintained. According to the design, the unexpected horizontal disturbing force generated by the air floatation working table is reduced to one thousandth of the rated vertical bearing force of the gas magnetic bearing, and the precision of dynamic simulation in a micro-low gravity ground experiment is remarkably improved.
Owner:TIANJIN UNIV
Rotary impact wear test device for simulating comprehensive lunar environment
PendingCN121632831APreparing sample for investigationMaterial strength using repeated/pulsating forcesTemperature controlTest sample
The invention relates to a rotary impact wear test device for simulating a lunar comprehensive environment. The rotary impact wear test device comprises a temperature control assembly, a low-gravity simulation assembly, an irradiation simulation assembly, a lunar dust sprinkling assembly, a rotary assembly and a test shell, a test chamber is defined by the test shell, a vacuum environment is formed in the test chamber, the rotating assembly is arranged on an inner bottom plate of the test chamber, a test sample is used for being fixed to the rotating assembly, and the temperature control assembly, the irradiation simulation assembly and the low-gravity simulation assembly are all arranged in the test chamber. The bottom end of the lunar dust sprinkling assembly penetrates through the top of the test shell and is inserted into the test cabin, and the top end of the lunar dust sprinkling assembly extends to the outside of the test shell; by means of the arrangement, friction abrasion between lunar dust and a sample in the moving process can be achieved, and the testing accuracy is improved; meanwhile, the uniform suspension state of lunar dust particles can be kept for a long time, and the accuracy of a test result is improved.
Owner:TAIYUAN UNIVERSITY OF TECHNOLOGY
A precise positioning mechanism of a five-axis side-hung double-arm double-section manipulator
The utility model relates to mechanical hand positioning technical field, concretely to a kind of accurate positioning mechanism of five-axis side hanging double-arm double-section mechanical hand, including longitudinal slide, longitudinal slide outer side is equipped with sliding slot, sliding block is slidably installed in the sliding slot, the one side of sliding block is fixedly installed with L-shaped plate, the L-shaped plate bottom end is fixedly installed with inclined bracing plate, the top of longitudinal slide is respectively equipped with longitudinal slide rail by bolt, the outer side of longitudinal slide rail is slidably installed with first sliding clamp, first inner thread block is fixedly installed between the first sliding clamp, first inner thread block and L-shaped plate top are equipped with horizontal sliding assembly by bolt, the utility model is equipped with L-shaped plate structure with inclined bracing plate by longitudinal slide side, and the rigidity linkage of combination horizontal platform and longitudinal drive component is formed Space triangular support and low gravity center layout, substantially enhance the bending and torsion resistance of mechanism, ensure positioning stability and motion stability under high load.
Owner:FUZHOU JUANG PLASTIC RUBBER CO LTD
Attitude self-adaptive balance mechanism in global low-gravity environment
The invention discloses a posture self-adaption balance mechanism in a global low-gravity environment. The posture self-adaption balance mechanism comprises a connecting assembly, a three-axis posture decoupling assembly, a dynamic balance assembly and a human body constraint assembly. The connecting assembly is used for being connected with external suspension equipment. The three-axis attitude decoupling assembly is connected with the connecting assembly, and the three-axis attitude decoupling assembly is used for providing three-degree-of-freedom rotation movement, including pitching, rolling and yawing, of the subject relative to the external suspension equipment; the dynamic balance assembly is connected with the three-axis attitude decoupling assembly, and the dynamic balance assembly is used for generating reverse gravitational torque to offset overturning torque generated by attitude change of the subject; the human body binding assembly is connected with the three-axis posture decoupling assembly, and the human body binding assembly is used for being worn on the body of a subject and transmitting force and torque. Three-degree-of-freedom attitude decoupling and dynamic moment balance are realized by utilizing a pure mechanical principle, and a suspension force vector is ensured to always pass through a system to synthesize a mass center, so that the omnidirectional motion characteristic in a low-gravity environment is accurately reproduced on the ground.
Owner:HUNAN UNIV
Multi-source data joint identification and mid-lower earth crust high conductor inversion method
PendingCN121899922ADesign optimisation/simulationSpecial data processing applicationsEarth crustElectrical conductor
The invention discloses a method for multi-source data joint identification and inversion of a middle and lower earth crust high conductor, and relates to the technical field of geophysical exploration. The method for multi-source data joint identification and inversion of the middle and lower earth crust high conductor mainly comprises the following steps: carrying out potential field separation on Bouguer gravity anomaly data to obtain residual gravity anomaly, regional gravity anomaly and field source depth, and further determining earth crust residual gravity anomaly and middle and lower earth crust density disturbance characteristics; and calculating residual gravity low anomalies reflecting the middle and lower earth crust high conductors in the research area, delineating plane distribution of the middle and lower earth crust high conductors, and performing random sub-domain three-dimensional automatic inversion for the residual gravity low anomalies to obtain a three-dimensional space distribution form of the middle and lower earth crust high conductors. By implementing the multi-source data combined identification and inversion method for the mid-lower earth crust high conductor provided by the invention, the mid-lower earth crust high conductor can be rapidly and effectively identified and inverted, and the three-dimensional space distribution of the mid-lower earth crust high conductor can be obtained.
Owner:贵州省地质调查院
Micro-low gravity simulation system for complex multi-body target
The application provides a micro-low-gravity simulation system for a complex multi-body target, which is driven by a hybrid method of active and passive driving and adopts a multi-stage suspension method, so that the flexibility of system movement is greatly improved, and aims at meeting the ground experiment requirements of a space mechanical arm, a lunar rover and other complex multi-degree-of-freedom spacecrafts; the system comprises a main frame, the main frame is a frame structure built by a rod body, the main frame supports a top sling driving system and a multi-stage movement system through a plurality of supporting legs; a control cabinet is further installed on the main frame, and the control cabinet is used for controlling the actions of the sling driving system and the multi-stage movement system.
Owner:TIANJIN UNIV
Low-gravity-center spherical holder locking device with fine adjustment function
The utility model discloses a low-gravity-center spherical holder locking device with a fine adjustment function. The low-gravity-center spherical holder locking device comprises a main body, a sphere, a sphere locking tray arranged at the bottom of the sphere, a locking ring arranged at the bottom of the sphere locking tray and a locking ring bracket arranged at the bottom of the locking ring. The trapezoidal locking sliding block and the trapezoidal fine adjustment sliding block are arranged on the side face of the locking ring; the locking driving rod is arranged on the side face of the trapezoidal locking sliding block; and the fine adjustment driving rod is arranged on the side face of the trapezoidal fine adjustment sliding block. Compared with the prior art, the cradle head with the structure has the advantages that the gravity center of the ball moves downwards, the structure is simple and compact, the locking effect is safer and more reliable, and a certain ball tightness fine adjustment function is achieved.
Owner:吴同华
Machine for cutting decorations for frustoconical bodies
The present invention relates to a machine for cutting decorations for frustoconical bodies, for cutting printed strips wherein arch-shaped decorations and disposable trapezoidal portions are alternated. The machine comprises two longitudinal supports mounted on clamping pieces and carriers of respective groups of counter blades; and two independent groups of blades attached to the respective groups of counter blades and defining a gap between them of increasing width towards a lower gravity outlet opening of the trapezoidal portions separated by cutting. The blades of each group are fixed to respective drive shafts mounted in holes in the longitudinal supports and fixed to a common plate driven by a cylinder. The clamping parts of the longitudinal supports and the common plate are exchangeable for others that provide different inclinations and separations of the groups of blades and counter blades.
Owner:MECANICA Y TECHA ALIMENTARIA
Vertical three-body underwater vehicle structure and design method thereof
PendingCN121849329AGeometric CADSpecial data processing applicationsGravity centerUnderwater vehicle
The invention relates to a vertical type three-body underwater navigation body structure which comprises three streamline revolving bodies, two streamline revolving bodies are symmetrically arranged on the upper portion, one streamline revolving body is arranged on the lower portion, and the axis of the streamline revolving body on the lower portion is located in the symmetry plane of the two streamline revolving bodies on the upper portion. The axes of the three streamline revolving bodies are parallel; the T-shaped rod is respectively connected with the three streamline revolving bodies; the mechanical arm is arranged at the bottom of the streamline revolving body at the lower part; horizontal rods are fixed to the two sides of the tail of the T-shaped rod, and main propellers are horizontally fixed to the two horizontal rods. The two streamline revolving bodies at the upper part are provided with vertical channels, and vertical propellers are arranged in the vertical channels; the streamline revolving body on the lower portion is provided with a horizontal channel, and a horizontal propeller is arranged in the horizontal channel. According to the navigation body structure, the transverse width is larger, the gravity center is lower, rolling and pitching can be effectively reduced, and the environment flow disturbance resisting capacity of the navigation body is improved.
Owner:CHINA SHIP SCIENTIFIC RESEARCH CENTER
Special environment simulation device and method
PendingCN122009540ACosmonautic condition simulationsWithdrawing sample devicesAviationControl system
The invention relates to the technical field of spaceflight, aviation, materials and buildings, and discloses a special environment simulation device and method.The device comprises a vacuum container, a vacuum simulation system, a temperature simulation system, a low-gravity simulation system and a control system; the vacuum simulation system is used for adjusting the vacuum degree in the vacuum container; the temperature simulation system is used for adjusting the temperature in the vacuum container through the heating temperature control system and the refrigerating system; and the low-gravity simulation system is used for adjusting a low-gravity parameter value in the vacuum container. According to the invention, the environment conditions of ultra-vacuum, low gravity and large temperature difference of the lunar surface are created and simulated on the ground. By integrating technologies of low-gravity simulation, temperature simulation, low-vacuum simulation and the like, multi-factor coupling environment simulation of the lunar surface is realized, important technical support is provided for lunar exploration and deep space exploration, and performance testing of lunar exploration equipment and engineering materials and related scientific experiments can be effectively carried out.
Owner:CHINA BUILDING MATERIALS ACADEMY CO LTD +1
High-strength low-gravity-center generator set vibration reduction base
Owner:BINA ELECTRIC TECH (GUANGZHOU) CO LTD
Truss type frame and new energy truck
The invention belongs to the technical field of vehicle frames, and particularly relates to a truss type vehicle frame and a new energy truck. The truss type vehicle frame comprises a truss I, a truss II and two bridge frames connected to the tops of the truss I and the truss II; a space is reserved between the first truss and the second truss to serve as a mounting space of the suspension, the bottoms of the bridges are fixedly connected with the top faces of the first truss and the second truss, the space below the tops of the bridges is used for mounting wheels, the first truss and the second truss which are spaced by a certain distance are connected into a whole through the two bridges, and the structural strength of the whole frame is guaranteed. The suspension can be installed between the first truss and the second truss and does not need to be arranged in the trusses in a penetrating mode, the truss type frame does not need to be lifted, installation complexity is lowered, the gravity center of a compartment is lowered, and the stability of the vehicle in the running process is improved. By means of the truss type frame, the new energy truck has the low gravity center and running stability, the cargo platform can be lowered to the maximum degree, and the convenience of cargo loading and unloading is improved.
Owner:HUNAN CSR TIMES ELECTRIC VEHICLE
An automatic deployment standing apparatus for meteorological observations
ActiveCN116877884BNon-rotating vibration suppressionStands/trestlesAtmospheric sciencesMechanical engineering
The present application relates to a kind of automatic deployment standing device for meteorological observation, including cylinder, multiple sets of deployment mechanism are provided on the cylinder, the deployment mechanism includes: support leg, it is rotatably connected in the lower end of the side wall of cylinder, provide support effect for the standing of cylinder;Execution structure, one end is fixed on cylinder, the other end is connected with support leg, and power is provided for support leg movement;Opening structure, it is set on cylinder, and controllably limit the rotation of support leg.The present application is compact, reasonable, easy to operate, by using compression spring and extension spring drive support leg rotation, to provide the action force of the standing of cylinder, while the entire device adopts the design of low gravity center, realizes the reliable automatic standing deployment action of observation device, provides a possibility for air-drop meteorological observation, solves the problem that operation personnel cannot reach the scene installation when geographical conditions and other environmental factors cause, carries out meteorological observation work in the area.
Owner:AEROSPACE NEWSKY TECHNOLOGY CO LTD
Apparatus for micro-low gravity field landing simulation test based on vertical near-zero stiffness mechanism and use method thereof
This invention provides a micro-low gravity field landing simulation test device based on a vertical near-zero stiffness mechanism, including a truss, a linear module, electromagnets, a probe simulator, a zero-stiffness mechanism, a companion vehicle, and a simulated star catalog. The truss is mounted on the simulated star catalog, with a guide rail laid in the middle of the catalog. The linear module is mounted on the truss directly above the guide rail, and an electromagnet is mounted on the moving block of the linear module. The linear module can be connected to the probe simulator via the electromagnets. The probe simulator is mounted to the companion vehicle via the zero-stiffness mechanism, and the companion vehicle can move on the guide rail. This invention is applicable to landing buffer ground tests for lunar, Martian, and other asteroid probes, providing a high-fidelity, full-physics simulation simulator test for landing leg landings, especially active leg soft landings.
Owner:TIANJIN AEROSPACE ELECTROMECHANICAL EQUIP RES INST
Gantry crane walking mechanism
ActiveCN224132573UMeet the needs of stable operationOptimize space layoutToothed gearingsTravelling gearGear wheelSimulation
The utility model relates to a gantry crane travelling mechanism, which is characterized in that firstly, the low gravity center design of a horizontal motor obviously improves the stability of the whole structure, when a gantry crane runs, the shaking and deviation of the motor are effectively reduced, the abnormal stress of a transmission part is reduced, the running of a transmission system is more stable and reliable, and the service life of equipment is prolonged; secondly, the connecting structure of the horizontal motor and the walking wheel box is simplified, efficient transmission of power is achieved through a transmission system composed of a driving gear, a first transmission gear and a secondary gear, and compared with a traditional vertical installation mode, the structural strength is higher, larger loads can be borne, and the service life is prolonged. The stable operation requirement of the heavy-load gantry crane in a high-strength operation environment is met; in addition, the space layout of the gantry crane walking mechanism is optimized through the horizontal motor installation mode, installation, debugging and later maintenance of equipment are facilitated, the maintenance cost is reduced, the operation efficiency and safety of the gantry crane are improved, and good economic benefits and application prospects are achieved.
Owner:GUANGDONG CHANGSHI PORT MACHINERY EQUIPMENT CO LTD
Effective gravity control device installed in building
PendingUS20260091954A1Cosmonautic condition simulationsEducational modelsControl signalOperating energy
The present invention relates to an effective gravity control device which is installed to have a falling space to be a vertical space in a building, and which implements a zero gravity, microgravity, low gravity, or pseudogravity state of an internal module mounted in a moving external module. An example effective gravity control device includes: a dual module including an external module and an internal module; an actuator installed at the upper side of a falling space in a space for controlling and monitoring a change in gravity applied to the dual module, and which moves the external module so that, according to a control signal, the external module has at least one physical quantity; and a sliding frame which is installed in a space at the lower side of the falling space and provides a path for taking the dual module into / out from the falling space.
Owner:LIIN TECH INC +1
Low gravity simulator
A low gravity simulator configured to place an object under a simulated low gravity force is disclosed. The low gravity simulator comprises: a substantially vertically extending support column, wherein the support column comprises an air bearing; a boom, wherein the boom is mounted to the support column, and wherein the boom is rotatable about a vertical axis; a carriage, the carriage translatably mounted on the boom so that the carriage is, in use, movable backwards and forwards along the boom; a cable supported by the carriage and connectable at one end, in use, to the object; and a counterweight attached to the cable at an opposing end to apply a biasing force to the cable. The counterweight is restrained by the support column and the air bearing is configured to facilitate the motion of the counterweight with respect to the support column.
Owner:UNITED ARAB EMIRATES UNIVERSITY
Zero gravity environment simulation device and method compensating for additional mass inertia forces
ActiveCN116620576BCosmonautic condition simulationsSustainable transportationFloating platformZero gravity
The application discloses a zero-gravity environment simulation device and method capable of compensating additional inertia force, and belongs to the field of micro-low gravity simulation test. The device comprises a near-zero stiffness supporting assembly, a motion following assembly, an adjustable air floating platform assembly and an inertia force compensation assembly. The near-zero stiffness supporting assembly and the motion following assembly realize vertical zero-gravity simulation, the air floating platform realizes horizontal zero-gravity simulation, and the inertia force compensation assembly comprises an inertia force compensation controller and a load acceleration sensor. The inertia force compensation controller is connected with the load acceleration sensor. The load acceleration sensor is responsible for monitoring the acceleration of a load device in x, y and z directions in real time, and transmits the acceleration signal to the inertia force compensation controller. Through the control of the motion following assembly and the adjustable air floating platform assembly, high-fidelity platform inertia force compensation is realized. The device and the method have fast response speed and high precision, and can realize high-fidelity zero-gravity simulation test in a large stroke.
Owner:HUAZHONG UNIV OF SCI & TECH
Low-gravity compliant type 9-degree-of-freedom upper limb rehabilitation robot based on double air pressure rods
PendingCN121533900AChiropractic devicesMuscle exercising devicesElectric machineryUpper limb rehabilitation
The invention discloses a low-gravity compliant type 9-degree-of-freedom upper limb rehabilitation robot based on double air pressure rods. The low-gravity compliant type 9-degree-of-freedom upper limb rehabilitation robot comprises a hand module, an arm module, a shoulder module and a chassis supporting module. A shoulder rotating piece is arranged in the middle of the shoulder motor connecting beam and connected with the other end of the second connecting rod through a first connecting support. A parallelogram structure is formed by the connecting center of the shoulder forward-stretching / backward-retracting motor and the motor-connecting rod adapter, the connecting center of the connecting rod-shoulder supporting adapter and the two shoulder rotating pieces and the connecting center of the shoulder motor connecting beam and the shoulder rotating pieces. The upper end of the main supporting pneumatic rod is rotationally connected with the bottom of the connecting rod-shoulder supporting adapter, and the lower end of the main supporting pneumatic rod is rotationally connected with the chassis supporting module; the upper end of the auxiliary supporting air pressure rod is rotationally connected with the upper portion of the shoulder connecting piece, and the lower end of the auxiliary supporting air pressure rod is rotationally connected with the connecting rod-shoulder supporting adapter. The gravity falling phenomenon caused by lack of accurate gravity compensation is avoided, and the use comfort and safety are improved.
Owner:HEBEI UNIV OF TECH
A control method, system, and electronic device for a suspended low gravity simulation
ActiveCN121541556BProgramme controlComputer controlActive disturbance rejection controlClassical mechanics
The application relates to a control method, system and electronic device of a suspension type low gravity simulation, and belongs to the technical field of aerospace. The application comprises the following steps: establishing an augmented state space model of a Z-axis constant force unloading mechanism; constructing a linear extended state observer according to the model; using the observer to estimate the Z-axis tension state and disturbance items in real time to obtain corresponding estimated values; defining a self-disturbance control law according to the disturbance item estimated values, and combining the Z-axis tension state estimated values to obtain a tension tracking control law; constructing a second-order model of an X-Y axis movement mechanism; detecting the linear displacement of the suspension cable in the X-Y plane in real time; defining a sliding mode surface of the X-Y axis movement mechanism according to the second-order model and the linear displacement; designing a sliding mode control law according to the sliding mode surface; and realizing multi-axis collaborative control according to the tension tracking control law and the sliding mode control law. The application improves the dynamic response speed and force control bandwidth, and provides a stable and high-fidelity low gravity simulation environment.
Owner:SUZHOU UNIV
A method, system, and storage medium for robotic handling in low gravity environments
ActiveCN120680516BSolve the problem of irregular rotation and difficulty in grabbingProgramme-controlled manipulatorComputer graphics (images)Angular velocity
The application discloses a robot carrying method and system in a low-gravity environment and a storage medium. A simple sketch drawn by an operator and a real scene image in a current cabin are collected, the simple sketch and the real scene image are input into a double-branch visual encoder model which has been trained, a basic action sequence instruction for controlling a robot to complete a material carrying operation is generated, and then a target rotation angular velocity is monitored in real time during target grabbing by executing the basic action sequence instruction. If the target rotation angular velocity is greater than a set threshold, the robot gripper is driven to rotate in a reverse direction for fine adjustment. Thus, pure visual instruction interaction is realized to adapt to the situation that voice interaction is completely unavailable in a low-gravity scene, and the problem that an object is easily subjected to irregular rotation and is difficult to be grabbed under low gravity is solved.
Owner:58 INTELLIGENT TECH (HANGZHOU) CO LTD
Effective gravity control device comprising dual modules
PendingUS20250382074A1Cosmonautic condition simulationsCosmonautic vehiclesZero gravityMicro gravity
The present invention relates to an effective gravity control device that implements a zero gravity, microgravity, low gravity, or weighted gravity state of an internal module based on a moving external module.In accordance with an embodiment of the present invention, an effective gravity control device that implements a zero gravity, microgravity, low gravity, or weighted gravity state of an internal module mounted in a moving external module includes the external module in which a movement space of the internal module is provided and of which at least one physical quantity related to movement is controlled, the internal module moving independently from the external module within the movement space by an external force transmitted through the external module, and a position detection sensor provided at at least one inner end of the external module and detecting a position of the internal module in the movement space.
Owner:LIIN TECH INC +1
Ankle joint motion device with low center of gravity
The utility model discloses a low gravity center's ankle joint motion device, including can sway the casing, the bottom in the casing is provided with gravity block and the both sides symmetry of the top of casing are provided with extension arm, and the foot support is connected between two extension arms. The utility model has the advantages of simple structure, need not power drive, convenient to use.
Owner:GUANGDONG NO 2 PROVINCIAL PEOPLES HOSPITAL