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13 results about "Rotational vibration" patented technology

3.1RV Introduction. Rotational vibration is simply the dynamic deviation of the rotation speed. If we measure the rotation speed of the shaft with high precision, we will notice that we get a high deviation of rotation speed in some regions of the run up.

A glass sheet on-line weighing system

ActiveCN224552515URotational vibrationSlag
The application discloses a glass plate weighing system along with a line, which comprises a conveying roller, a weighing mechanism arranged above the conveying roller, a vertical moving mechanism, a suction cup connected to the bottom of the vertical moving mechanism, a pressure sensor arranged between the suction cup and the vertical moving mechanism, a vertical moving winch and a pull rope, a pull frame fixed to the bottom of the pull rope, the pressure sensor arranged on the pull frame, a horizontal plate arranged on the top of the suction cup and placed on the pressure sensor, a driving mechanism connected to the suction cup and used for extracting or injecting air in the suction cup. The glass plate weighing system along with the line has the beneficial effect that the glass plate is lifted and weighed, the weighing efficiency is ensured, the measurement accuracy is not affected by falling ash, slag and the like, and the measurement accuracy is not affected by the rotation vibration of the roller.
Owner:SICHUAN SHUWANG CHENSHENG NEW MATERIALS CO LTD

Vibration power generation device

PendingJP2026086995AMechanical energy handlingOther apparatusRotational vibrationElectromotive force
This device provides a vibration power generation device that generates high electromotive force by causing the air gap of the magnetic circuit to change more significantly and rapidly than in conventional devices. [Solution] The vibration power generation device 10 comprises a magnetic circuit 11 in which a magnetic flux capturing part 15 or magnetic flux leakage part 13 provided at one end of a first magnetic material member 12 and a magnetic flux leakage part 13 or magnetic flux capturing part 15 installed at one end of a second magnetic material member 14 face each other with an air gap 21 in between, and the other ends of the first magnetic material member 12 and the second magnetic material member 14 are connected via a support shaft 16, thereby enabling relative rotation around the support shaft 16; a vibration transmission device 18 having a vibration receiving part 24 at one end and the other end fixed to the first magnetic material member 12; a coil 20 wound between the magnetic flux leakage part 13 or magnetic flux capturing part 15 of the second magnetic material member 14 and the support shaft 16; and an elastic body 22 configured to exert a restoring force in the direction that narrows the air gap 21 when an attempt is made to widen it.
Owner:戸苅 宏元

Vibration-type actuator, rotary drive device, and image pickup apparatus

ActiveCN114123855BRotational vibrationActuator
A vibration type actuator includes a vibrator including a protruding portion and a piezoelectric element, the vibrator being configured to vibrate in response to a voltage, and a contact member having a contact surface in contact with the protruding portion. The vibrator and the contact member are rotated relative to each other about a first axis. The vibrator is inclined to the contact surface by a predetermined angle.
Owner:CANON KK

Micro-electromechanical coupling devices

PendingJP2026521833AGyroscopeRotational vibration
To identify a micro-mechanical coupling device or ring gyroscope that suppresses translational mode excitation while simultaneously saving installation space compared to known solutions. [Solution] A micro-electromechanical coupling device (100) for coupling micro-electromechanical components, comprising: a flexible ring structure (110) that forms a circle when stationary and is deformable substantially parallel to the plane of the circle and is suitable for coupling the micro-electromechanical components; and a plurality of spring elements (120) suitable for connecting the ring structure (110) to a substrate (200), each spring element (120) comprising: at least one tangential spring (122) that is displaceable substantially tangentially with respect to the ring structure (110); and at least one radial spring (124) that is displaceable substantially radially with respect to the ring structure (110); The spring element (120) has independent components for the tangential spring (122) and the radial spring (124), and the ratio of the spring stiffness of the tangential spring (122) and the radial spring (124) of each spring element (120) is configured such that the vibration that deforms the ring structure (110) is more energetically advantageous than the vibration that displaces the ring structure (110) with respect to the substrate (200) in translation and / or rotation, and / or the natural frequency of the translation and / or rotational vibration and the nearest natural frequency of the deformation vibration are separated by more than 5% of the natural frequency of the deformation vibration.
Owner:NORTHROP GRUMMAN LITEF GMBH

A multi-speed automatic transmission with high smoothness

The present application relates to the technical field of gearbox, disclose a kind of high smoothness multi-gear automatic gearbox, including box, the outside of the box is equipped with main motor, the outside of the main motor is provided with terminal box, the front end of the box is provided with output flange, the front end of the box is provided with gear ring, the outside of the box is provided with shift mechanism, the outside of the box is provided with protection mechanism, the inside of the box is provided with transmission gear set and the shift clutch that is cooperated with the transmission gear set, the output shaft of the main motor is connected with the input end of the transmission gear set. By the integrated structure that the output shaft of main motor is directly connected with the transmission gear set and the shift clutch in the box, the gap impact between each transmission pair, friction loss and rotary vibration are reduced, power transmission is more smooth and efficient, the simplification of mechanical structure reduces overall weight and manufacturing cost, so that assembly and maintenance difficulty are also reduced accordingly.
Owner:DALIAN SHENGMAN HEAVY IND MACHINERY CO LTD

Magnetic levitation regenerative gas compressor and control method thereof

PendingCN122447325AImpellerGas compressor
The application discloses a magnetic suspension regenerative gas compressor and a control method thereof. The magnetic suspension regenerative gas compressor comprises a control device, a double-shaft motor and two compression assemblies on both sides of the double-shaft motor. The compression assembly comprises a magnetic suspension bearing and a turbine impeller connected with an output shaft of the double-shaft motor, and a compressor gas collecting cover located outside the turbine impeller. A displacement sensor, an acceleration sensor and an electromagnetic coil are arranged on the magnetic suspension bearing. The compressor gas collecting cover comprises an air inlet and an air outlet pipeline. A motor control unit is used for controlling the rotation of the rotor of the double-shaft motor. A vibration suppression filter unit is used for filtering the acceleration signal of the magnetic suspension bearing based on harmful vibration frequencies in the magnetic suspension bearing signal collected by the acceleration sensor. A magnetic suspension control unit is used for obtaining electromagnetic force based on acceleration information extracted from the filtered acceleration signal, and converting the electromagnetic force into coil current. The structure is simple, and the performance and control precision of the magnetic suspension regenerative gas compressor can be improved.
Owner:CHINA PETROLEUM ENG & CONSTR +1

Storage and reclaim system for bulk material

PCT designated stageWO2026109305A1Cargo handling apparatusLarge containersRotational vibrationCentre of rotation
The present invention relates to a storage and reclaim system (100) for bulk material (102) comprising an inclined support plate (112) for supporting the bulk material (102) and for assisting gravity induced feeding of the bulk material (102). One or more rotary vibrators (116) are connected to the support plate (112) via a respective bracket (140) and configured to transfer vibrational energy to the support plate (112) to induce a vibrational movement of the support plate (112). The bracket (140) comprises a support plate mounting surface (142) connected to the support plate (112) and having a length extension (L). The bracket (140) comprises a vibrator mounting surface (144) to which the rotary vibrator (116) is attached, whereby a centre of rotation (CR) of at least one rotary vibration element (116a) of the rotary vibrator (116) is located at distance (D) from the second major surface (112b) in a direction normal to the second major surface (112b). A ratio between the length extension (L) of the support plate mounting surface (142) and the distance (D) from the second major surface (112b) to the centre of rotation (CR) is in a range of 0,75 to 4,0. A transversal traveling wave (TW) is induced in the support plate (112) in response to operating the one or more rotary vibrators (116). A vessel (200), a land-based storage (300) and a hopper (400) including system (100) are also provided. Moreover, a use of the system (100) for handling of bulk material (102) is also provided.
Owner:MACGREGOR SWEDEN

A fool-proof bush structure

ActiveCN224324108USteering deviceRotational vibrationBushing
The utility model discloses a kind of foolproof bushing structures, including handlebar vertical pipe, front fork vertical pipe, bolt and nut, and the outside wall of handlebar vertical pipe is through with the insertion hole, handlebar vertical pipe is set in the outside of front fork vertical pipe;It further includes fastening bushing, the outside wall of fastening bushing is provided with first locating surface, the inner side wall of insertion hole is provided with second locating surface, fastening bushing is inserted into insertion hole and with the outer surface of front fork vertical pipe is pasted, first locating surface and second locating surface are opposite and pasted, the end of bolt is from fastening bushing, handlebar vertical pipe, front fork vertical pipe, nut is screwed on bolt and with the outer surface of handlebar vertical pipe is abutted.Assembling by first locating surface and second locating surface can be fastening bushing is placed right, and it plays the role of foolproof to fastening bushing, prevent when screwing nut, bolt pneumatic screw gun rotation vibration causes fastening bushing to occur dislocation, prevent handlebar after long time riding vibration and loosen.
Owner:GUANGXI LUYUAN ELECTRIC VEHICLE CO LTD

A silo rotary vibration arch breaking device

The application provides a silo rotary vibration arch breaking device, which comprises a shell, the shell is connected with a silo discharge port, an inner shell is arranged in the shell, a supporting frame is arranged on the inner shell, the cross section of the inner shell is in the shape of an inverted trapezoid, a transmission shaft is arranged in the inner shell, a plurality of groups of mounting sleeves are arranged on the transmission shaft along the axis of the transmission shaft, a plurality of groups of arch breakers are arranged on the mounting sleeves in a ring shape, a driving mechanism connected with the transmission shaft is arranged on the inner shell, the transmission shaft is driven to rotate along the axis and vibrate by the driving mechanism, a first vibration assembly connected with the inner shell is arranged on the transmission shaft, and the inner shell is driven to vibrate by the first vibration assembly in the process of rotation and vibration. In the process of use, the device can break the arch of powder by the rotating and vibrating arch breakers, the inner shell is driven to vibrate by the first vibration assembly, the arch breaking effect is improved, and the device is helpful for promoting the large-scale application of industrial by-product gypsum (phosphogypsum, titanium gypsum, desulfurization gypsum and the like), red mud and other general industrial solid wastes.
Owner:CHONGQING RES ACAD OF ECO ENVIRONMENTAL SCI +1

A turbine disk vibration safety verification device and method

PendingCN122282241AImplement step-by-step verificationAccurately obtain traveling wave vibration parametersRotational vibrationControl cell
This invention relates to a turbine disk verification device and method, addressing the problem that existing technologies struggle to simultaneously simulate centrifugal loads, fluid loads, and high-temperature environments on turbine disks, leading to complex and costly verification devices. The invention provides a turbine disk vibration safety verification device and method, comprising a rotating vibration verification unit, a high-temperature vibration verification unit, and a control unit. The rotating vibration verification unit includes a sealed chamber, a drive device, an airflow disturbance device, and a data acquisition module, used to drive the turbine disk to rotate at room temperature and apply periodic airflow excitation to acquire traveling wave vibration parameters. The high-temperature vibration verification unit includes a heating unit, a vibration unit, a temperature sensor, and an acceleration sensor, used to heat the turbine disk and apply high-frequency vibration excitation to acquire vibration response parameters. The control unit coordinates and controls each module and collects data. This invention comprehensively evaluates turbine disk vibration safety by first measuring traveling waves during rotation at room temperature and then measuring fatigue at high temperature without rotation.
Owner:XIAN AEROSPACE PROPULSION INST