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32 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.

Reliability evaluation system and method for two-degree-of-freedom rotational vibration energy collector

The invention provides a reliability evaluation system and method for a two-degree-of-freedom rotational vibration energy collector, and belongs to the field of nonlinear rotational vibration energy collection, and the method comprises the steps: S1, constructing a kinetic model, and converting the kinetic model into a Hamiltonian form; s2, reducing dimensions by adopting a random average method; s3, calculating a drift coefficient and a diffusion coefficient; s4, constructing and solving a boundary value problem to verify the calculation precision; and S5, parameter sensitivity analysis and design optimization. According to the reliability evaluation system and method for the two-degree-of-freedom rotary vibration energy collector, the problems that in reliability analysis of an existing two-degree-of-freedom rotary vibration energy collector, high-dimensional coupling characteristics are difficult to capture, an analysis frame is incomplete, calculation efficiency is low, and parameter optimization lacks theoretical guidance are solved.
Owner:BEIFANG UNIV OF NATITIES

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

Uniform mixing bioreactor stirring paddle

The invention relates to the technical field of stirring paddles, in particular to a uniform mixing bioreactor stirring paddle which comprises a column body, the rotating shaft is rotationally connected into the column body; through the innovative composite design of a double-layer differential transmission mechanism and vibration stirring, three-dimensional chaotic mixing is realized, and the mixing efficiency and quality are remarkably improved; the upper-layer first rotating mechanism drives a plurality of first stirring paddles to rotate at a set speed through a gear train formed by a first gear ring, a first gear and a second gear ring; the second rotating mechanism at the lower layer drives a second stirring paddle through another independent gear system, slides in a corrugated groove with a specific angle through a T-shaped block, and generates periodic radial vibration in combination with an elastic component; the rotation-vibration composite motion breaks the flow field symmetry of traditional one-way stirring, can effectively eliminate a mixing dead zone, enables nutrient substances, dissolved oxygen and cells to be highly uniformly distributed, and is especially suitable for a high-density and high-viscosity culture system.
Owner:SHANXI AGRI UNIV

Brushless direct current vibration motor

The invention discloses a brushless direct current vibration motor, and relates to the technical field of motor equipment. Comprising a motor body, continuous rotation is converted into instantaneous pulse impact through meshing of an inner ratchet ring, a tooth block and a pawl, high-quality and high-strength click type tactile feedback is generated and far exceeds the rotating vibration texture of a traditional ERM motor, a centrifugal clutch is formed by a first spring and a first telescopic rod, and the motor body is driven by the first telescopic rod to rotate. By means of the structure, strong impact can be generated only at the high rotating speed, decoupling of the vibration strength and the rotating speed is achieved, false triggering impact at the low speed is effectively buffered, the mechanism is protected, and a mechanical buffering layer is built between the movable block and the rotor body through the limiting assembly. The impact force and noise generated when the movable block is thrown out and withdrawn and collides with the body are greatly reduced, the problems of material fatigue and damage caused by inertial collision are effectively solved, the durability of the impact mechanism is remarkably improved, and the service life of the impact mechanism is remarkably prolonged.
Owner:JINLONG ELECTRICAL HUAIBEI CO LTD

Rotational vibration test measuring device and rotational vibration test measuring method

PendingCN122042177AVibration testingRotational vibrationMechanical engineering
The invention discloses a rotary vibration test measuring device and a rotary vibration test measuring method, and belongs to the technical field of oil and gas development direction measuring instruments, the rotary vibration test measuring device comprises a rotary vibration measuring electrical output device, a rotary vibration measuring platform, a rotary transmission mechanism and a rotary supporting mechanism; the rotary vibration measurement electrical output equipment is used for outputting axial rotary power and transmission signals when the actual underground working condition is simulated in the rotary vibration test measurement process; the rotary vibration measurement platform is used for supporting the rotary vibration measurement electrical output equipment, the rotary transmission mechanism and the rotary supporting mechanism; the rotation transmission mechanism is used for transmitting energy and power output by the rotation vibration measurement electrical output equipment to the whole system; the rotation supporting mechanism is used for balancing the rotation vibration measurement electrical output device and the rotation transmission mechanism on the same horizontal plane. The device is used for carrying out actual underground working condition simulation on the data acquisition unit before the device descends into a well.
Owner:四川天石和创科技有限公司

An end plate nut disassembly and assembly mechanism and an end plate disassembly and assembly machine

This invention relates to the field of pipe pile disassembly and assembly technology, and in particular to an end plate nut disassembly and assembly mechanism and an end plate disassembly and assembly machine. The end plate nut disassembly and assembly mechanism includes: a mounting frame, on which a base plate is rotatably connected, and the base plate is provided with several frames; a rotating device for driving the base plate to rotate; a disassembly and assembly device, which includes a position adjustment component, a sleeve, and a drive component; an adaptive clamping device, which includes a snap-fit ​​block and an adaptive compensation component; and a fixing device, which includes an adsorption component, a vibration triggering component, and an anti-loosening component. This invention achieves automatic centering during the nut insertion stage through the cooperation of the snap-fit ​​block and the compensation component, and forms a dynamic clamping enhancement mechanism with the vibration triggering anti-loosening component, effectively avoiding stripping and detachment; at the same time, the adsorption component and the snap-fit ​​block provide initial clamping force, and the anti-loosening component automatically strengthens the clamping when rotational vibration is detected.
Owner:CCCC THIRD HARBOR ENGINEERING CO LTD +1

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

High-altitude pipe gallery flaw detection method and system based on unmanned equipment and storage medium

PendingCN121499553AImage analysisCharacter and pattern recognitionRotational vibrationRay launching
The invention relates to the technical field of flaw detection, and discloses a high-altitude pipe gallery flaw detection method and system based on unmanned equipment and a storage medium, and the method comprises the following steps: in response to a radiographic inspection instruction, controlling a ray emission assembly to emit rays, and controlling a ray imaging assembly to generate a ray image; the radiographic inspection structure is controlled to rotate around the high-altitude pipe gallery by one circle on the holding structure; acquiring a plurality of rotational vibration data, calculating to obtain an acquired vibration value, if the acquired vibration value is greater than the acquired reference vibration value, calculating an acquired vibration comparison value, and adjusting the first rotational speed according to positive correlation of the acquired vibration comparison value; the enclasping structure is controlled to move to the translation length in the high-altitude pipe gallery; collecting a plurality of translational vibration data, calculating to obtain a translational vibration value, if the translational vibration value is greater than a translational reference vibration value, calculating a translational vibration contrast value, and adjusting the first movement speed according to negative correlation of the translational vibration contrast value; and the flaw detection accuracy of the high-altitude pipe gallery is improved.
Owner:SHANGHAI HUAJIE TESTING ENG TECH CO LTD

Intelligent vibrating mechanical device for layered and segmented pouring of concrete and control method

The invention discloses an intelligent vibrating mechanical device for layered and segmented pouring of concrete and a control method. The intelligent vibrating mechanical device comprises a formwork set, a vibrating mechanism and a winding mechanism. The formwork set is composed of a plurality of pouring formworks, transparent fixing grooves are formed in the pouring formworks, monitoring boxes matched with the fixing grooves are fixed in the fixing grooves, and a plurality of sensors are arranged in the monitoring boxes. According to the invention, an intelligent vibrating system integrating real-time state sensing, autonomous moving and directional vibrating capabilities is integrated; the system is composed of three parts: 1, an intelligent sensing template group: a monitoring box provided with an ultrasonic and vibration sensor array is embedded in a key position of a template to form a sensing network; 2, the intelligent vibrating mechanism is an execution terminal which can move in concrete by rotating spiral blades and is provided with a vibrator capable of rotating by 360 degrees; the central control system is used for receiving data of the sensor, making a decision and controlling the movement and the vibrating behavior of the vibrating mechanism.
Owner:THE FIRST CONSTR ENG COMPANY LTD OF CHINA CONSTR SECOND ENG BUREAU

An experimental device and method for researching high-speed instability interval of rotor oil

The application discloses an experimental device and method for researching high-speed instability interval of rotor oil liquid, and the experimental device comprises a frame, a rotating shaft, an oil tank, a first bearing, a second bearing, a storage plate, a plurality of partition plates and a processor; a circular hole is formed in the middle of the top plate and the storage plate, the first bearing and the second bearing are respectively installed in the circular hole of the top plate of the storage plate and the frame through a first bearing seat and a second bearing seat; the rotating shaft vertically penetrates the first bearing and the second bearing from top to bottom, is connected with the oil tank between the storage plate and the bottom plate, and rotates horizontally under the action of a motor; the plurality of partition plates are detachably and evenly distributed and installed in the oil tank, one end of the partition plate is connected with a stand column located in the center of the oil tank, the other end is connected with the inner side of the oil tank, and the oil tank is evenly separated into a plurality of sub-regions. The application can effectively simulate the vibration phenomenon of the oil liquid under the condition of the baffle, the baffle is convenient to assemble and disassemble, and is suitable for the research on the oil liquid rotary vibration of the rotor dynamics.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Flexible ring feeding device

ActiveCN224254659UMetal working apparatusRotational vibrationLinear vibration
The utility model discloses a flexible ring feeding device, and belongs to the technical field of valve assembling equipment. The feeding device comprises a rotary vibration disc, a discharging guide rail and a discharging linear vibration feeder, the discharging guide rail is arranged at the discharging end of the rotary vibration disc, the discharging linear vibration feeder is installed on the discharging guide rail, a plurality of suction holes are formed in the discharging guide rail and used for being connected with a vacuum device, and the discharging guide rail applies adsorption force to a flexible ring through the suction holes. The discharging linear vibration feeder enables the flexible ring on the discharging guide rail to move in the direction away from the rotary vibration disc. According to the flexible ring feeding device, the flexible ring is adsorbed through the suction holes of the discharging guide rail, the probability that the flexible ring is stripped from the discharging guide rail is reduced, vibration which is applied to the flexible ring on the discharging guide rail and moves in the direction away from the rotary vibration disc is combined with the discharging linear vibration feeder, and the feeding efficiency of the flexible ring is improved; the problem that in the prior art, the flexible ring feeding efficiency is low is solved.
Owner:SUZHOU RENWOXING AUTOMATION CO LTD

Preparation method of abrasion-resistant combined test piece

The invention discloses a preparation method of an anti-abrasion combined test piece. The preparation method comprises the following specific steps: step 1, manufacturing a plurality of concrete anti-abrasion round disc test piece semi-finished products; 2, a plurality of blind holes are formed in the surface of each concrete anti-erosion round disc test piece semi-finished product through a hole depth adjusting device, and a concrete anti-erosion round disc test piece is obtained; step 3, preparing a pouring material; step 4, fixing the concrete anti-impact round disc test piece on a rotary vibration device, pouring a pouring material into each blind hole, and starting the rotary vibration device to perform rotary mixing to complete pouring; and step 5, curing and polishing the poured concrete anti-abrasion disc test piece to obtain the anti-abrasion combined test piece. The method provided by the invention solves the problem of non-uniform material distribution of the existing composite material test piece.
Owner:XIAN UNIV OF TECH

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

Motor control method for an oral care device and related apparatus

ActiveCN120360729BIncreased vibration coverageExpand coverageAC motor controlTooth cleaningVibratory signalRotational vibration
The application discloses a motor control method of an oral care device and a related device. The motor includes a mover, and the method comprises: obtaining a driving signal; the driving signal comprises a plurality of sweep signals, each of the sweep signals comprises a plurality of vibration signals; based on a high level of the vibration signal, the mover is controlled to move in a first direction, and based on a low level and / or a reverse high level of the vibration signal, the mover is controlled to move in a direction opposite to the first direction, to reciprocate relative to a reference axis; the vibration includes linear vibration or rotary vibration; based on the sweep signal, the mover is controlled to vibrate, and the position of the reference axis is changed to form sweep, so as to increase the coverage range of the vibration. In this way, the coverage range of the vibration of the mover is significantly improved, and the oral cleaning effect is improved.
Owner:GUANGZHOU STARS PULSE CO LTD

Rotary machinery vibration measuring device

The invention belongs to the technical field of rotary vibration measurement, particularly relates to a rotary mechanical vibration measurement device, and provides the following scheme aiming at errors caused by non-vertical contact between a handheld vibration meter and an arc-shaped surface during rotary mechanical vibration measurement: the rotary mechanical vibration measurement device comprises a measurement table, and the upper side of the measurement table is fixedly connected with a chute frame. According to the rotary mechanical vibration measuring device disclosed by the invention, measurement is carried out in a mode of mechanically clamping and fixing the vibration meter through the two centering plates and the two mounting plates by utilizing the self-positioning measuring assembly, and meanwhile, the vibration meter is always centered, positioned and clamped through the two centering plates; therefore, the probe of the vibration meter is always in vertical contact with the tangent line of the measuring arc-shaped surface of the rotating machine before and after measurement, and the situation that the actual vibration state of the machine cannot be truly reflected due to the fact that vibration energy received by the probe is attenuated or distorted due to non-vertical contact is avoided. And the effectiveness of predictive maintenance is improved while the measurement accuracy is ensured.
Owner:LONGYAN UNIV

A rough-fine integrated pulsating electrochemical machining machine tool for a blisk

The application discloses a blisk multi-tool rough-fine integrated pulsating electrochemical machining machine tool, and relates to the technical field of electrochemical machining, which comprises a machine tool body, wherein the machine tool body comprises a base, a left stand column, a right stand column and a middle stand column; a workpiece movement platform is installed on the middle stand column; the workpiece movement platform comprises a workpiece vertical movement platform; the workpiece vertical movement platform is connected with a workpiece rotary workbench; and the rotary end of the workpiece rotary workbench is used for fixing a blisk workpiece; an upper tool beam and a lower tool beam are arranged between the left stand column and the right stand column; the lower tool beam is connected with a tool vertical movement platform; the upper tool beam is connected with an upper tool disc through an upper rotary vibration device; the lower tool beam is connected with a lower tool disc through a lower rotary vibration device; the lower surface of the upper tool disc is circumferentially and uniformly provided with a plurality of blade back electrodes and a plurality of tube electrodes; and the upper surface of the upper tool disc is circumferentially and uniformly provided with a plurality of blade basin electrodes. The application simplifies the overall blisk machining process, and has high machining precision and work efficiency.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Differential device

The present invention relates to a differential device that suppresses rotational runout of a differential case and reduces gear noise at a meshing portion of a ring gear. In a differential device (1), a pair of side gears (10a, 10b) that face each other on the rotational center axis of a differential case (3) are disposed inside the differential case (3), a ring gear (8) is integrally provided on the outer periphery of the differential case, and pinion gears (11a, 11b) that mesh with the side gears are disposed between the side gears. A pinion shaft (12) disposed in a direction orthogonal to the rotational center axis passes through the pinion and rotatably holds the pinion, and an end portion of the pinion shaft is supported by a differential case having a through-hole into which the end portion of the pinion shaft is inserted, the end portion of the pinion shaft being press-fitted into the through-hole, and the end portion of the pinion shaft being press-fitted into the through-hole. The pinion shaft has a protruding portion that protrudes from the through hole to the outside of the differential case, and the protruding portion becomes an expanded portion (15a, 15b) that is larger than the inner diameter of the through hole.
Owner:TOYOTA JIDOSHA KK

Cell culture bioreactor

The utility model relates to a cell culture bioreactor, which belongs to the technical field of bioreactors, and comprises a base and a culture tube, the top of the base is provided with a rotary vibration structure, the rotary vibration structure comprises a motor frame and a rectangular plate, the motor frame is fixedly connected with the top of the outer surface of the base, and the rectangular plate is fixedly connected with the base. A rectangular through groove is formed in the top of the rectangular plate, and a sliding block is slidably connected to the inner wall of the rectangular through groove. By arranging a rotary vibration structure, a rectangular plate can rotate under the action of a transmission rod, so that an eccentric wheel and a transmission wheel are matched for extrusion, a sliding block can slide on the inner wall of a rectangular through groove, a limiting plate can be driven to move, and the limiting plate can move left and right; the limiting plate can be reset under the action of the reset spring, so that the culture tube can be driven to do reciprocating motion, vibration mixing is further performed, precipitation or layering is avoided, and the mixing effect is more uniform.
Owner:WUHAN CELL ENG CENT CO LTD

A vibration analysis method for multi-degree-of-freedom high-frequency motion simulation device for high-speed wind tunnel experiment

ActiveCN121612540BAerodynamic testingVibration testingD'Alembert's principleSupporting system
The present application belongs to the technical field of buffet detection of aircraft model support system in hypersonic flow field environment, and discloses a vibration analysis method of multi-degree-of-freedom high-frequency motion simulation device for high-speed wind tunnel experiment. Firstly, according to rigid body mechanics and elastic body theory, the engineering model is simplified into a two-degree-of-freedom rotational vibration system coupled by four flexible springs and a rigid plane, mainly by four flexible springs to transfer actuation energy and amplify vibration effect, one end of the spring is fixed to the excitation source, the other end is connected to the rigid plane, so as to produce directional actuation angle. The excitation source end can stably output sinusoidal periodic driving force by default, and the vibration control equation of the micro unit is listed according to d'Alembert principle and generalized Hooke's law; finally, the two-degree-of-freedom vibration equation is obtained according to the coupling coordination condition, and the real-time accurate analytical calculation of the whole vibration model is realized without relying on any force position measuring point.
Owner:DALIAN UNIV OF TECH

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

Oral care device and control method for motor thereof

An oral care device and a control method for a motor thereof are provided. The oral care device includes a motor, and the motor includes a rotor. The control method includes: obtaining a drive signal, where the drive signal includes sweeping signals, and each of the sweeping signals includes vibration signals; controlling the rotor to perform reciprocating vibrations relative to a reference axis based on the drive signal, and changing a position of the reference axis to increase a vibration coverage range of the rotor; where the reciprocating vibrations include linear vibrations or rotational vibrations; and controlling the rotor to vibrate based on the vibration signals; and controlling the rotor to vibrate based on the sweeping signals, and changing the position of the reference axis to form a sweeping motion of the rotor. The drive signal is a predetermined signal.
Owner:GUANGZHOU STARS PULSE CO LTD

Wax pattern tree group model structure with bubble reducing effect

ActiveCN223961581UFoundry moulding apparatusRotational vibrationElectric machinery
The utility model relates to the technical field of molds, in particular to a wax pattern tree group model structure with a bubble reducing effect, which comprises a workbench, a vibration table is mounted at the top of the workbench, a mold is fixedly communicated with the top of the vibration table, a wax liquid inlet is fixedly communicated with the middle of the mold, and a wax liquid outlet is formed in the middle of the mold. A rotary vibration mechanism is arranged at the bottom of the vibration table, a knocking mechanism is arranged at the top of the vibration table, a motor is fixedly connected to the top of the workbench, a telescopic rod is fixedly connected to the inner wall of the workbench, a mold base is fixedly connected to the top of the telescopic rod, and the rotary vibration mechanism comprises a fixing sleeve and a sliding rod. According to the wax mold, the mold can rotate, wax liquid in the mold can be vibrated under the impact action of the pulley and the arc-shaped block, and bubbles in the wax liquid can be promoted to rise and be discharged through rotary vibration, so that air holes and flaws in a finished product are reduced, and the quality and the surface smoothness of the wax mold are improved.
Owner:CHANGSHU SHPC & MECHANICAL CO LTD

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

Ultra-long cable combined vibration suppression device based on transverse damper and rotary damper and design method

The invention relates to an ultra-long cable combined vibration suppression device based on transverse dampers and rotary dampers and a design method. The device comprises the transverse dampers, the rotary dampers, a connecting support, a sliding way and a cable clamp. The transverse damper provides transverse damping force and consumes transverse vibration energy of the inhaul cable. The rotating damper provides rotating damping force and dissipates rotating vibration energy of the inhaul cable. The design method comprises the steps that design input is determined, the rotary damper is arranged at the installation position of the transverse damper, an inhaul cable-transverse damper and rotary damper system model is constructed according to design conditions, parameters of the transverse damper and the rotary damper are optimized and adjusted, and the combined working mode of the transverse damper and the rotary damper is designed. The problem that a traditional transverse damper is insufficient in damping effect near a high-order mode vibration mode stagnation point is effectively solved, and the restraining effect on multi-mode vibration, especially high-order vortex-induced vibration, of the inhaul cable is remarkably improved.
Owner:NANJING TECH UNIV