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43results about How to "Vibration isolation" patented technology

Rigidity-adaptive three-degree-of-freedom low-frequency electromagnetic vibration isolator

InactiveCN119267484AReduce magnetic field strengthReduce magnetic interferenceMagnetic springsShock absorbersDynamic stiffnessPerpendicular magnetization
The invention discloses a rigidity-adaptive three-degree-of-freedom low-frequency electromagnetic vibration isolator, and belongs to the technical field of precise vibration isolation. The rigidity-adaptive three-degree-of-freedom low-frequency electromagnetic vibration isolator comprises three sets of low-frequency electromagnetic vibration isolators formed by connecting rigidity-adaptive electromagnetic arrays and spiral springs in parallel. The spiral spring stably supports the load in a passive mode and effectively isolates vibration of middle and high frequency bands; the rigidity self-adaptive electromagnetic array generates high negative rigidity through a moving magnetic array and a fixed magnetic array which are composed of four columns of vertically magnetized equal-cross-section cubic permanent magnets, coil current is adjusted in real time through acceleration feedback, external excitation and load mass changes are responded, the negative rigidity is dynamically adjusted, and the requirement for three-degree-of-freedom near-full-band vibration isolation is met. The vibration isolator has adjustable low dynamic rigidity in the vertical and horizontal rotation freedom degrees, the vibration isolation frequency is low, the frequency band is wide, a super-quiet environment is provided for tip equipment, and the instrument precision is remarkably improved.
Owner:HARBIN INST OF TECH

Three-degree-of-freedom parallel vibration isolation platform with quasi-zero stiffness characteristic

The three-degree-of-freedom parallel vibration isolation platform with the quasi-zero stiffness characteristic comprises a static platform, a movable platform and a plurality of sets of branch chains, and each branch chain comprises a supporting column, a vertical spring, an L-shaped supporting frame, an upper connecting rod, a lower connecting rod and a horizontal spring; the lower end of the supporting column is fixed to the static platform, and the upper end of the supporting column is connected with the lower end of the vertical spring through a first adjusting mechanism. The upper end of the vertical spring is fixed below the movable platform; the lower end of the L-shaped supporting frame is fixed to the static platform, the horizontal spring is installed on the L-shaped supporting frame through the spring seat, and the spring seat, the lower connecting rod, the upper connecting rod and the movable platform form a first rotating pair, a second rotating pair and a third rotating pair which are parallel to one another. The three-degree-of-freedom vibration isolator has the flexible motion characteristic, the space three-translation-degree-of-freedom vibration isolation requirement is met, and by adjusting the pre-compression amount of the springs, the approximate zero-rigidity characteristic can be achieved in the X direction and the Y direction, and the zero-rigidity characteristic can be achieved in the Z direction.
Owner:SOUTH CHINA AGRICULTURAL UNIVERSITY

Pneumatic grinding end effector with spindle vibration isolation function and control method

The invention provides a pneumatic grinding end effector with a spindle vibration isolation function and a control method, the pneumatic grinding end effector comprises a supporting assembly, the supporting assembly comprises an upper bottom plate and a lower bottom plate, a connecting flange is mounted on the upper bottom plate, and the connecting flange is used for being connected with a robot; the propelling assembly is connected with the upper bottom plate and the lower bottom plate, and the propelling assembly is used for adjusting the distance between the upper bottom plate and the lower bottom plate; the grinding assembly comprises a pneumatic motor and a grinding tool, and the pneumatic motor is installed on the lower bottom plate and used for driving the grinding tool; and the vibration isolation assembly comprises a vibration isolation frame and a plurality of photonic crystal unit cells installed on the vibration isolation frame, the vibration isolation frame is connected with an output shaft of the pneumatic motor and the grinding tool, and the multiple photonic crystal unit cells are arranged around the peripheral side of the vibration isolation frame. According to the pneumatic grinding end effector, the influence of vibration of the main shaft on the grinding quality in the grinding process of the end effector is effectively solved.
Owner:HEBEI UNIV OF TECH

Heavy-load precise gas-magnetic composite low-frequency micro-vibration isolator for high-end instrument equipment

ActiveCN119267483Avibration isolationReduce magnetic field strengthMagnetic springsShock absorbersPerpendicular magnetizationSoftware engineering
A heavy-load precise gas-magnetic composite low-frequency micro-vibration isolator for high-end instrument equipment belongs to the technical field of precise vibration isolation and is formed by coaxially nesting a movable magnetic ring array and a fixed magnetic ring array, the movable magnetic ring array and the fixed magnetic ring array are both formed by 2n + 1 (n > = 1, n belongs to N +) layers of uniform-section magnetic rings which are arranged in an array manner along the axial direction and are vertically magnetized between the adjacent layers, the overall structure is vertically symmetrical about the (n + 1) th layer of magnetic ring; first-layer magnetic rings of the movable magnetic ring array and the fixed magnetic ring array are magnetized reversely along the radial direction, and the bottom surfaces of the first-layer magnetic rings coincide; when one layer is added, the magnetization direction of the movable magnetic ring is clockwise rotated by 90 degrees, and the magnetization direction of the fixed magnetic ring is anticlockwise rotated by 90 degrees; the device is simple in structure and convenient to install and maintain, high negative rigidity and zero magnetic force characteristics can be generated, the dynamic vibration isolation rigidity is reduced under the condition that heavy-load precise micro-vibration isolation bearing of dozens of tons to thousands of tons is not changed, and low-frequency or near-zero-frequency vibration isolation is achieved.
Owner:HARBIN INST OF TECH

Weighing and charging gate of mine heavy truck

The invention discloses a mine heavy truck weighing charging gate which comprises a rack, a mounting frame is horizontally arranged on the rack, a stock bin is arranged above the mounting frame, a metering discharging mechanism is slidably connected to the mounting frame, the metering discharging mechanism further comprises a metering tank slidably connected with the mounting frame, a weighing inner shell is arranged in the metering tank, and the weighing inner shell is arranged in the metering tank. The weighing inner shell is used for bearing materials; the weighing inner shell abuts against a weighing sensor fixed to the metering tank through a force transmission component, and a gap is reserved between the weighing inner shell and the inner wall of the metering tank. The metering discharging mechanism further comprises a dustproof assembly which slides synchronously with the metering tank, a discharging mechanism is arranged between the metering tank and the stock bin, and the discharging mechanism is used for guiding materials from the stock bin to the metering tank. The weighing function module, the discharging function module and the dust removal function module are integrated on the metering discharging mechanism capable of transversely sliding, and uniform material distribution and metering loading are achieved.
Owner:SHANDONG GOLD MINING LINGLONG

Adjustable agricultural product freezer

The utility model discloses an adjustable agricultural product freezer, including the body of a library, the body of a library sets up the upside of base, the inside of body of a library is equipped with the baffle, the baffle will body of a library divide into three cabins, and is equipped with corresponding sensor in each cabin, the cabin of middle is connected with refrigeration equipment, and is equipped with the sealed door in the front side of each cabin, and is equipped with handle in the front side of sealed door, the utility model can close the air -conditioning supply of idle sub cabin, avoid the waste of cold quantity, reduce operation energy consumption greatly, fan forced circulation air -conditioning, shorten the time of reaching the set temperature of two sides sub cabin, improve the efficiency, the compound damping mechanism effectively insulates the external vibration (such as removal, uneven ground, nearby equipment operation), protect the body of a library structure, reduce the damage of inside article because of vibration (especially to the tender agricultural product), prolong the life of equipment.
Owner:CHONGQING XIMING REFRIGERATION EQUIP CO LTD

Portable geographic information acquisition equipment

The invention relates to portable geographic information acquisition equipment applied to the technical field of acquisition equipment, the equipment adopts a dual suspension structure and comprises a suspension ball, a coil fixing hemisphere and a fixing hemisphere, a gradienter is arranged in the suspension ball, and a permanent magnet and a data acquisition sensor are arranged on the surface of the suspension ball; the coil fixing hemisphere is provided with a coil and an iron core; a permanent magnet and a Hall sensor are installed on the fixed hemisphere, the controller achieves suspension and posture adjustment of the suspension ball and the coil fixed hemisphere by adjusting coil current and utilizing electromagnetic acting force, a positioning antenna is installed at the top of the suspension ball, and an optimally-designed spiral structure is adopted, so that the positioning precision can be remarkably improved; the device is further provided with a reflection isolating ring, an isolating plate and a conductive magnetic substrate, electromagnetic interference is effectively restrained, the controller integrates data processing and attitude control, the portable geographic information collecting device with high precision, multiple functions and miniaturization is achieved, and the portable geographic information collecting device can be widely applied to the fields of military affairs, disaster monitoring, resource census and the like.
Owner:ANHUI YUTIAN INFORMATION TECHNOLOGY CO LTD

A metal ore pre-treatment apparatus and system

ActiveCN121797428BAvoid cracking but not completely broken and separatedImprove preprocessing efficiencyGrain treatmentsMining engineeringMetal
This invention relates to the field of metal ore crushing technology, specifically disclosing a metal ore pretreatment device and system, comprising: a movable jaw component and a pushing mechanism. The movable jaw component includes a support part, a movable jaw plate, and a locking part. The support part and the locking part are both connected to a moving part. The movable jaw plate is slidably connected between the support part and the locking part. The moving part can drive the movable jaw plate to reciprocate and swing, cooperating with a fixed jaw plate to crush the metal ore. The pushing mechanism includes a second drive source, a transmission component, and a pushing component. The second drive source is connected to a frame. The pushing component is mounted on the moving part. The transmission component is connected between the second drive source and the pushing component. The pushing component is connected to the movable jaw plate. The second drive source drives the transmission component, so that the transmission component drives the pushing component to run, thereby driving the movable jaw plate to reciprocate laterally. The metal ore pretreatment device and system of this invention generates shearing force on the metal ore through the reciprocating lateral movement of the movable jaw plate, further crushing the metal ore.
Owner:XIAN TIANZHOU MINING TECH GRP CO LTD

Novel steel structure space capsule

The utility model discloses a novel steel structure space capsule, which relates to the technical field of space capsules and comprises a capsule body, a mounting door is arranged on one side of the outer wall of the capsule body, a sound insulation plate is fixedly connected to the inner wall of the capsule body, four groups of connecting columns are fixedly connected to the bottom of the capsule body, and the four groups of connecting columns are distributed at the bottom of the capsule body in a rectangular shape. The ends, away from the cabin body, of the four sets of connecting columns are each fixedly connected with a set of connecting plates, the outer walls of the four sets of connecting plates are each provided with a set of supporting blocks, the inner bottom ends of the four sets of supporting blocks are each provided with a set of springs, the four sets of springs are distributed at the inner bottom ends of the four sets of supporting blocks in a rectangular shape, and a fresh air ventilator is arranged in the cabin body. The top end of the fresh air machine is fixedly connected with an air inlet pipe. External sound is isolated to a great extent through the sound insulation plate, vibration borne by the device is relieved through the springs, and therefore good sleep quality of a user can be guaranteed; and the transparent glass is driven by the motor to move into the accommodating groove, so that a user can enjoy the starry sky night scene without obstacles at night.
Owner:GUILIN TIANMA PREFABRICATED CONSTR CO LTD

Frame type battery box body with good sealing performance and assembling method of frame type battery box body

The invention belongs to the technical field of batteries, and particularly relates to a frame type battery box body with good sealing performance and an assembling method thereof, the assembling method comprises two steps of obtaining parts of the frame type battery box body and assembling the frame type battery box body, and the frame type battery box body assembled by the method has good sealing performance on the aspect of structural design. And through the reasonable layout and connection mode of the supporting plate and the bottom protection plate, the overall stability and impact resistance of the box body are effectively enhanced. In the aspect of sealing performance, the first sealing piece and related bolt connection between the bottom protection plate and the frame, the riveting and bolt connection between the supporting plate and the frame and the bottom protection plate, and the sealing pieces are matched, so that the waterproof, dustproof, sound insulation and vibration isolation effects are greatly improved, external water vapor, dust and other impurities are effectively prevented from entering, the risks of battery short circuit, corrosion, poor heat dissipation and the like are reduced, and the service life is prolonged. Safe and stable operation of the battery is ensured.
Owner:YIBIN EVERWIN PRECISION TECH CO LTD +1

Small trailing suction dredger driven by hybrid power

ActiveCN222555131UTotal installed power is lowvibration isolationAuxillariesSoil-shifting machines/dredgersDieselingPropeller
The utility model relates to the technical field of ships, in particular to a small-sized trailing suction dredger driven by hybrid power, which comprises a dredger body, the lower part of the right side of the dredger body is sequentially provided with a head side pusher and a ballast tank from left to right, and the upper part of the left side of the dredger body is symmetrically provided with trailing suction pipe devices; one output end of the main diesel engine is connected with a main engine gear box and an axle generator, the output end of the main engine gear box penetrates through the ship body and is provided with a controllable-pitch propeller, the other output end of the main diesel engine is connected with speed reduction connecting devices, and the output end of one speed reduction connecting device is connected with a dredge pump. And the output end of the other speed reduction connecting device is connected with a high-pressure flushing pump. The combined driving mode is adopted, single-harrow operation of the harrow suction pipe device can be achieved, single-harrow operation can be achieved at a port with narrow channel width without turning around, the total installed power of the whole ship is reduced, ship vibration and noise are physically isolated, the living comfort of personnel is improved, and the combined driving type harrow suction pipe device has good market prospects.
Owner:SHANGHAI HANSAIL MARINE & OFFSHORE DESIGN

Stacked on-board hydrogen system framework

The utility model relates to vehicle-mounted hydrogen supply technical field especially a kind of stacked vehicle-mounted hydrogen system frame, including base, the top of the base is equipped with shock-absorbing component by bolt, the top of shock-absorbing component is equipped with support frame by bolt, the number of support frame is several, the front and back sides of support frame are all welded with positioning insert shell, the four corners of support frame inner chamber are all fixedly installed with limit seat, hydrogen storage bottle is installed between upper and lower limit seat, the bottom of top cover plate outer surface is welded with protective screen cover.Vibration makes elastic damping body and rubber damping pad occur elastic deformation, convert most high-frequency vibration energy into heat energy consumption, after attenuation, smooth force is transmitted to the support frame of hydrogen system by inner lining plate, effectively isolate the vibration and impact transmitted in vehicle driving, substantially reduce the dynamic load borne by entire hydrogen system, significantly improve the reliability and security of system.
Owner:GUANGZHOU SHUNHUA HYDROGEN TECH CO LTD

Liquid cooling cabinet capable of preventing generation of condensed water

The invention discloses a liquid-cooled cabinet capable of preventing generation of condensate water, and relates to the technical field of liquid-cooled cabinets, the liquid-cooled cabinet comprises a case shell, an oil storage box is fixedly connected below the case shell, an equipment storage box is mounted in the case shell, an oil delivery pipe is communicated above the case shell, a screen is fixedly connected in the oil storage box, and the screen is fixedly connected in the equipment storage box. The outer side of the case shell is in sliding connection with a heat preservation plate, by automatically adjusting the vacuum distance between the heat preservation module and the cabinet, the constant temperature and humidity environment in the cabinet can be maintained, generation of condensate water is reduced, and meanwhile the stability and reliability of the equipment are improved; a vacuum environment is formed in the cabinet heat preservation module and the cabinet, so that heat transfer paths can be effectively reduced, heat is prevented from being lost in an air conduction and convection mode, the cooling efficiency can be improved, and meanwhile, generation of condensate water outside the cabinet can be prevented due to the fact that the temperature difference between the inside and the outside of the cabinet does not need to be maintained.
Owner:HANGZHOU XINGJIA TECHNOLOGY CO LTD

Data fusion communication method and device, vehicle and medium

The invention relates to the technical field of vehicles, in particular to a data fusion communication method and device, a vehicle and a medium, and the method comprises the steps: obtaining a plurality of pieces of sensor data received in a service data bus service process; converting the sensor data into corresponding formatted data; and generating a corresponding publisher instance and a corresponding data theme according to the formatted data structure, screening formatted data corresponding to a target data theme according to the target data theme subscribed by the client, encrypting and serializing the formatted data, and transmitting the formatted data to the data subscription end. Therefore, the problems that in the related technology, repeated redundant data exists in theme data created by all application processes, multiple applications have requirements for out-of-domain data, the software development and maintenance cost is increased, manpower and time resources are wasted, and data transmission is lack of safety are solved.
Owner:LION AUTOMOTIVE TECH NANJING CO LTD +2

Respirator with self-cooling function

ActiveCN224640237UEffectively absorbed and taken awaySolve the accumulation
This utility model discloses a respirator with a self-cooling function, belonging to the technical field of respiratory protection equipment. It aims to solve the problem of existing respirators causing discomfort and safety risks due to increased internal temperature caused by user respiration during use. It includes: a protective shield body; a liquid reservoir at the top of the protective shield body containing coolant, employing an elastic bladder structure; a circulation pipe horizontally disposed on the outside of the protective shield body, connected to both ends of the liquid reservoir via a first pipe and a second pipe; and a driving mechanism including a micro-pump disposed on the first pipe, the second pipe, or the circulation pipe, driving the coolant to flow sequentially through the liquid reservoir, the first pipe, the circulation pipe, the second pipe, and back to the liquid reservoir, forming a coolant circulation loop. This shield is mainly used in high-temperature environments or industrial and medical applications requiring cooling, automatically reducing the shield temperature and improving user comfort and safety.
Owner:HUNAN VOCATIONAL INST OF SAFETY TECH

Damping device and vehicle

PendingCN119659248Avibration isolationEnsure a stable connectionAir-treating devicesNon-rotating vibration suppressionControl theoryMechanical engineering
The invention provides a vibration damping device and a vehicle, the vibration damping device is used for being placed between an air conditioner complete machine located on a vehicle roof and the vehicle roof, and the vibration damping device comprises a connecting assembly, and the air conditioner complete machine and the vehicle roof are connected through the connecting assembly; and the vibration reduction assembly comprises a first vibration reduction part and a second vibration reduction part which are arranged along the roof at intervals, the first vibration reduction part is arranged corresponding to an evaporator of the air conditioner complete machine, and the second vibration reduction part is arranged corresponding to a compressor of the air conditioner complete machine, so that the problem that a device for reducing vibration of the air conditioner system of the bus is lacked in the prior art is solved.
Owner:GREE ELECTRIC APPLIANCE INC OF ZHUHAI

Semiconductor wafer glue coating uniformity machine

ActiveCN224586246URealize spatial coordinationEasy to disassemble
This utility model provides a coating spinner for semiconductor wafers, relating to the field of semiconductor manufacturing equipment technology. The spinner includes a worktable, a dispensing head, a drive assembly, a translation device, a spinner, and a detachable liquid shield. The drive assembly includes a column, a horizontal linear motor, a horizontal guide rail, a horizontal slide block, and a vertical slide cylinder, enabling precise multi-degree-of-freedom movement of the dispensing head in three-dimensional space. The spinner drives the wafer to rotate at high speed for coating via a rotating assembly. The rotating assembly employs a rotary motor, a drive pulley, a driven pulley, and a belt drive structure to avoid direct vibration transmission and improve operational stability. The translation device moves the entire spinner, facilitating workstation switching. The liquid shield is detachably mounted on the spinner and has an opening in the center for the dispensing head to pass through, effectively preventing glue splashing and facilitating maintenance and cleaning.
Owner:AIRUIT (WUXI) SEMICONDUCTOR TECHNOLOGY CO LTD

Intracranial pressure probe and method of encapsulating the same

PendingCN122536974AGuaranteed tightness requirementshigh hardness
This application discloses an intracranial pressure probe and its packaging method, relating to the technical field of intracranial pressure probes. The intracranial pressure probe includes a sensor and a coated lead wire, with the proximal end of the sensor electrically connected to the distal end of the coated lead wire. It includes: a protective frame with a window on its side wall; the sensor is disposed within the protective frame and corresponds to the window; a plug with a convex spherical surface at the distal end of the protective frame, the edge of which smoothly connects to the side wall of the protective frame; and a conduit sleeved over the coated lead wire and connected to the proximal end of the protective frame. A window transition structure is provided between the end of the sensor and the edge of the window, and a first transition structure is provided between the proximal end of the protective frame and the outer surface of the conduit. Both the window transition structure and the first transition structure are arc transitions. A gel filling layer is provided inside the conduit, between the protective frame, and between the sensor. This solves the problem of intracranial pressure probes easily scratching tissue in related technologies.
Owner:BEIJING PINS MEDICAL

Shockproof structure of photovoltaic power generation panel

ActiveCN224733660Ureduce vibration amplitudevibration isolation
This utility model relates to the field of photovoltaic power generation technology, and in particular to a shock-resistant structure for a photovoltaic power generation panel, comprising a base plate, a mounting plate, a support assembly, and a vibration isolation assembly. The mounting plate is disposed above the base plate. The support assembly is disposed above the mounting plate and is used to mount the photovoltaic power generation panel. Multiple vibration isolation assemblies are disposed between the base plate and the mounting plate. The shock-resistant structure for the photovoltaic power generation panel in this utility model, by setting vibration isolation assemblies between the base plate and the mounting plate, and by mounting the photovoltaic power generation panel above the mounting plate via the support assembly, can effectively block ground vibrations to a certain extent through the vibration isolation assemblies, effectively reducing the vibration amplitude of the mounting plate, the support assembly, and the photovoltaic power generation panel.
Owner:ENERGY CHINA YNPD

Water box assembly of water purifier and water purifier comprising same

The water box assembly of the water purifier comprises a water box used for limiting a water pipe and a cover plate used for covering the water pipe and connected with the water box, and further comprises a vibration isolation structure which is arranged at the connecting end, close to the cover plate, of the water box in a sleeving mode. The vibration isolation structure is connected with the cover plate through a fastener, and the surface, attached to the cover plate, of the vibration isolation structure is elastic. The design of the vibration isolation structure can effectively reduce the condition that the vibration of the water pipe is transmitted to the shell of the water purifier, specifically, the vibration isolation structure is arranged at the connecting end, close to the cover plate, of the water box, and an elastic surface is adopted between the vibration isolation structure and the cover plate, so that the vibration propagation of the water box caused by the vibration of the water pipe can be effectively absorbed and reduced; and the vibration amplitude of the whole machine is reduced. Moreover, by reducing the transmission of vibration, the use experience of the user can be improved.
Owner:NINGBO FOTILE KITCHEN WARE CO LTD

A straightening mechanism for a continuous casting machine

This utility model relates to the field of straightening technology for continuous casting machines. It provides a straightening mechanism for a continuous casting machine, including a fixed frame, a machine frame, and a clamping mechanism installed on the top front side of the machine frame. The clamping mechanism is used to fix the forward direction of the casting plate. Fixed mechanisms are installed on both the left and right sides of the outer wall of the machine frame to fix and support the machine frame. The clamping mechanism includes a fixed frame, which is fixedly connected to the top front side of the machine frame. In this utility model, through the cooperation of the clamping plate and the long plate, the casting plate can always move forward on the fixed rod in a straight line. This ensures that the casting plate, under the push of the upper and lower pressure rollers, is always in the middle position of the straightening mechanism. This prevents the casting plate from being out of the middle position of the upper and lower pressure rollers during the conveying process when the casting plate width changes, which could easily cause it to deviate and collide with the sides of the upper and lower pressure rollers, thus affecting the straightening effect of the casting plate.
Owner:SHIJIAZHUANG YINGJIE CONTINUOUS CASTING TECH CO LTD

Shock-resistant automobile support

The utility model discloses an anti-impact automobile support which comprises a protective plate body, a fixed connecting plate, a connecting assembly and a bomb bearing body, a joint seat is fixedly installed on the surface of the protective plate body, and convex buckle bodies used for being connected with the connecting assembly and the bomb bearing body are arranged on the surface of the joint seat and the surface of the fixed connecting plate. The connecting assembly comprises connecting buckle bodies, a main supporting strip and an auxiliary supporting strip, wherein the main supporting strip and the auxiliary supporting strip are located between the two connecting buckle bodies. According to the automobile protection plate, through the flexible design of the bullet bearing body and the connecting assembly, when an automobile is subjected to external impact, impact energy can be fully absorbed, damage of impact to automobile parts is reduced, the overall impact resistance of the automobile is improved, and the protection plate body, the fixed connecting plate, the connecting assembly and the bullet bearing body are connected through the convex buckle body and the fixed connecting buckle; quick disassembly and assembly are facilitated, the maintenance time and cost are reduced, and the use convenience of the product is improved.
Owner:TAIZHOU YONGSHUO AUTOMOBILE PARTS CO LTD

Rope-driven anthropomorphic wrist joint with spin decoupling property

PendingCN122274928AAchieve motion decouplingOptimized force sealing propertiesDrive wheelAlgorithm
This invention discloses a rope-driven anthropomorphic wrist joint with rotational decoupling characteristics, belonging to the field of robotics technology. It includes a rotational decoupling mechanism and a differential mechanism. In the rotational decoupling mechanism, a fixed wheel is fixed to the robot's forearm, while the driving wheel is connected to the differential mechanism. The rope assembly enables flexible drive of the joint module. The rotational decoupling mechanism employs a movable pulley system, utilizing the characteristics of the movable pulleys to decouple the motion of the two sets of steel cables as they pass through the rotational joint. This allows the drive unit to be centrally located on the robot base or near the proximal end structure. The differential mechanism consists of a differential rotation axis, a fixed seat on the outer side of the differential rotation axis, and two symmetrically arranged sets of differential rotating wheels, forming a differential structure. This enables multi-degree-of-freedom composite movements such as pitch and yaw within a limited space, significantly improving structural compactness. This invention uses a rope-driven combined with rope transmission structure, enhancing joint flexibility and effectively isolating the motor output from impact and vibration.
Owner:TIANJIN UNIV

Friction pendulum shock insulation support with laminated rubber sliding block sealing cavity

The utility model discloses a friction pendulum shock insulation support with a laminated rubber sliding block sealing cavity, which comprises a support plate, a concave sliding wall is arranged in the support plate, and a sliding chute is arranged at an opening of the concave sliding wall; the double-face sliding plate is arranged in the concave sliding wall, and the two ends of the double-face sliding plate are each provided with a fixed twisting turned edge; the sliding surface steel strand is fixedly mounted in the fixed twisting turned edge; the laminated rubber sliding block is arranged between the upper double-face sliding plate and the lower double-face sliding plate, arc-shaped sliding plates are arranged at the upper end and the lower end of the laminated rubber sliding block, and waist grooves are formed in the middle of the laminated rubber sliding block in a vertically symmetrical mode; and the lead core is embedded in the center of the laminated rubber sliding block. Effective displacement and deformation are realized; by means of the structure, interaction of the assemblies is flexible, the inertia effect transmitted to a building structure can be weakened, the support has the vertical tensile capacity, the air pressure difference exists inside and outside the support, certain stability can be provided for the support, vertical seismic oscillation can be isolated, and wide application of the support is facilitated.
Owner:TIANJIN HUAHUI ENG ARCHITECTURAL DESIGN CO LTD

Low-frequency vibration reduction and isolation structure design of co-vibration type vector hydrophone

The invention provides a low-frequency vibration reduction and isolation structure design of a co-vibration type vector hydrophone. The low-frequency vibration reduction and isolation structure design comprises the co-vibration type vector hydrophone, a vibration reduction suspension system, a vibration isolation system, a signal acquisition system and a signal transmission system. Aiming at how to avoid the influence of cable shaking and platform vibration on the low-frequency receiving performance of the co-vibration type vector hydrophone, the vibration conduction of the cable and the platform to the vector hydrophone is reduced through the structural design of oil-filled packaging and multi-layer vibration isolation, so that the low-frequency vibration reduction and isolation of the vector hydrophone are realized.
Owner:THE 76TH RES INST OF CHINA STATE SHIPBUILDING CORP +1

An apparatus and method for measuring the vector geomagnetic field using an unmanned aerial vehicle (UAV).

ActiveCN121165198BEliminate baseline inconsistenciesavoid systematic bias
This application relates to the field of vector geomagnetic field surveying, and more particularly to a method and system for measuring vector geomagnetic fields using an unmanned aerial vehicle (UAV). The system includes a tetrahedral rigid support structure made of non-magnetic material, with four GNSS antennas mounted at its vertices and three base points respectively, forming an RTK-GNSS multi-antenna system for acquiring low-frequency attitude data in a geocentric-ground-fixed coordinate system. A sensor unit integrates a vector magnetic sensor and an inertial measurement unit for acquiring three-axis geomagnetic field data and high-frequency angular velocity data. A GNSS receiver receives the multi-antenna observation data. A calibration system is used to construct a reference coordinate system during the ground calibration stage and determine the first rotation matrix between the magnetometer coordinate system and the reference coordinate system. An attitude and magnetic field data processing unit fuses low-frequency attitude and high-frequency angular velocity information, calculates the second rotation matrix between the REF reference coordinate system and the geocentric-ground-fixed coordinate system, and outputs three-axis geomagnetic field data in the geocentric-ground-fixed coordinate system through multi-level rotation matrix transformation.
Owner:NAT SPACE SCI CENT CAS

Infrared focal plane refrigeration machine micro-vibration isolation and vibration absorption device

ActiveCN117704002BReduce micro-vibration outputEffective micro-vibration absorption
An infrared focal plane refrigerator micro-vibration isolation and vibration absorption device, four groups of focal plane isolation structures are installed between the lower base and the upper seat, the lower base is installed on the camera main body, and the upper seat is installed on the infrared focal plane; the focal plane vibration absorber is installed on the end of the infrared focal plane cold finger; the focal plane limiting structure limits the displacement of the upper seat; four groups of compressor isolation structures are installed between the compressor support and the compressor, the compressor support is installed on the satellite cabin plate, the vibration absorber support is installed on the axial end face of the compressor, and the compressor vibration absorber is installed on the vibration absorber support; the compressor limiting structure limits the displacement of the compressor; the focal plane isolation structure and the compressor isolation structure are flexible structures. The application solves the image disturbance problem caused by excessive micro-vibration of the infrared refrigerator itself and the satellite cabin plate, and has the ability to simultaneously isolate the transmission path and weaken the vibration transmitted to the focal plane by the refrigerator.
Owner:BEIJING RES INST OF SPATIAL MECHANICAL & ELECTRICAL TECH

Digital audio and video signal transmission processing equipment with link fault analysis

The utility model provides a digital audio and video signal transmission processing device with link fault analysis, which relates to the technical field of signal transmission equipment and comprises a device body and a working mechanism, the upper end of the device body is fixedly connected with the working mechanism, and when the device is used, the working mechanism is connected with the device body. The combination of the supporting assembly and the damping assembly not only ensures the firm installation of the equipment, but also effectively isolates vibration and impact, protects sensitive internal electronic assemblies, the ingenious layout of the circuit fixing assembly makes cable management orderly, simplifies the maintenance and upgrade process of the equipment, the chip assembly is the core of the equipment, and the cost is reduced. A plurality of signal processing functions are integrated, high quality of signals in the conversion, amplification and distribution process is ensured, the precision signal chain assembly further improves the system performance, the signal conversion accuracy and amplification fidelity are ensured, in addition, the basic assembly provides a friendly operation interface for a user, and the user experience is improved. And function selection and parameter adjustment become visual and convenient.
Owner:YUNNAN HUAGUANG NEW TECH DEV CO

Suspension tunnel pipe body-lane plate system with vibration isolation effect

The utility model relates to the technical field of ocean engineering, in particular to a floating tunnel pipe body-lane plate system with a vibration isolation function, which comprises a main body structure and a lane plate vibration isolation system, the main body structure comprises a tunnel pipe body and anchor cables, the multiple anchor cables are evenly distributed and connected to the outer side of the lower portion of the tunnel pipe body, and the lower ends of the anchor cables are all connected with the bottom bed. The lane plate vibration isolation system comprises a lane plate, a vertical spring, a vertical hydraulic cylinder, a transverse spring and a transverse hydraulic cylinder; the top ends of the vertical springs and the vertical hydraulic cylinders are hinged to the bottom of the middle section of the lane plate, and the bottom ends of the vertical springs and the bottom ends of the vertical hydraulic cylinders are hinged to the inner wall of the tunnel pipe body; two ends of the transverse spring and the transverse hydraulic cylinder are respectively hinged with the inner wall of the tunnel pipe body and the end part of the lane plate; the outer surface of the tunnel pipe body is directly located in a wave flow environment and is directly acted by water power. The damping device has a good damping effect under the action of wave periodic load, and the overall safety of a tunnel and the driving comfort of a lane are improved.
Owner:CHINA MERCHANTS CHONGQING COMM RES & DESIGN INST +1