333results about "Flywheels" patented technology

The invention discloses a quasi-zero stiffness vibration isolator based on coupling of an inerter and a connecting rod and a parameter design method, and belongs to the technical field of vibration isolators. The quasi-zero stiffness vibration isolator comprises a connecting rod structure, a spring assembly, an inerter, a vibration isolation plate and a mounting base, the connecting rod structure comprises four connecting rods with the same length; the spring assembly comprises a connecting spring and two supporting springs; the rod pieces AB, AC, A 'B' and A 'C' are connected through hinge joints; two ends of AA'are connected with the inerter through connecting springs which are horizontally arranged in parallel; two ends of CC'are fixed on the mounting base, and two ends of BB 'are fixedly hinged on the vibration isolation plate; the BC end and the B 'C' end are connected through a vertical supporting spring; the supporting spring provides positive rigidity in the vertical direction, the connecting spring provides negative rigidity, and the inertial container amplifies the equivalent mass of the vibration isolation target through inertia so as to reduce the resonance frequency. The vibration isolator achieves low force transmissibility and displacement transmissibility under low-frequency excitation, and the adaptability and stability of the vibration isolator are enhanced.

The invention relates to the technical field of flywheel energy storage equipment, in particular to a flywheel rotor dynamic balance self-adaptive adjusting method and system based on magnetorheological fluid. The method comprises the steps that the sealing state of a magnetorheological fluid cavity is detected through a pressure sensor, and it is ensured that the pressure in the cavity is stable and free of leakage; the non-contact displacement sensor executes zero calibration, and output signal fluctuation is controlled within a preset range; carrying out no-load test on a current output port of the self-adaptive control module; when the rotating speed rises from a static state to a preset rotating speed value, a sensor of the real-time monitoring module synchronously collects a radial vibration signal of the rotor, decomposes a fundamental frequency vibration component with the same frequency as the rotating speed, and calculates the amplitude and the phase of the unbalance; when the rotating speed is stabilized in a preset rotating speed interval, the self-adaptive control module enters a closed-loop adjusting state, and when an unbalanced phase is calculated according to detection, a corresponding compensation quadrant fan-shaped cavity is locked, and the current of an electromagnetic coil is adjusted; the problem of traditional adjustment lag is solved, and over-compensation and under-compensation under variable working conditions are avoided.

The invention provides a fan tuned mass inerter damper structure and a parameter design method, and belongs to the field of ocean engineering vibration reduction. The structure comprises an engineering structure, an outer sleeve, a roller, an inner sleeve, an additional mass block, four damper spring units and four inerter system units. The engineering structure is fixed with the external sleeve, and a guide rail is formed between the engineering structure and the external sleeve; the additional mass block is arranged in the center of the inner sleeve, the four inerter system units are connected with the damper spring unit and located on the same plane, the other ends of the four inerter system units are connected with the inner wall of the inner sleeve, and each inerter system unit comprises an inerter system spring, a damping unit, a first inerter unit and a second inerter unit. According to the structure, translation-rotation conversion is achieved through the inerter unit, efficient inertia synergy is achieved with small physical mass, and the load of a draught fan is relieved; the four units are symmetrically arranged to ensure omnidirectional vibration suppression; the roller guide rail reduces friction and improves response sensitivity and energy consumption efficiency; according to the parameter design method, parameters are accurately optimized, and broadband vibration reduction performance and engineering reliability are guaranteed.

Disclosed are an internal magnetic control device, a flywheel assembly and a fitness equipment, wherein the flywheel assembly comprises a flywheel, an internal magnetic control device and a speed measuring device, wherein the internal magnetic control device comprises a housing unit, a driving unit, two swing arms and two sets of magnetic elements, wherein the driving unit is arranged at the housing unit; a pivoting end of each of the swing arms is rotatably mounted at the housing unit; a driven end of each of the swing arms is rotatably connected to the driving unit; the two sets of the magnetic elements are respectively arranged at each of the swing arms; wherein the flywheel is rotatably arranged around the internal magnetic control device, wherein the speed measuring device comprises a sensing element and an acting member.

The invention discloses a flywheel rotor mechanism based on phase change working medium cooling and a flywheel system. The flywheel rotor mechanism comprises a shell. The flywheel rotor is arranged in the shell, a storage cavity is formed in the end face of the flywheel rotor, and a liquid-gas phase change working medium is stored in the storage cavity; the heat dissipation device is arranged in the full-length direction of the flywheel rotor and communicates with the storage cavity, and the end of the heat dissipation device diffuses towards the periphery of the flywheel rotor; the cooling assembly is installed on the shell, and the end of the cooling assembly extends into the shell and faces the storage cavity; wherein heat generated by the flywheel rotor enables a liquid working medium in the storage cavity to be converted into a gaseous working medium, and the gaseous working medium flows into the heat dissipation device after being acted by the cooling assembly, so that the heat generated by the flywheel rotor can be taken away more quickly and efficiently, the temperature of the flywheel rotor is effectively reduced, and the problems of performance reduction, damage and the like caused by overheating are prevented; and stable operation of the flywheel rotor in a proper temperature range is ensured.

The invention discloses a damping-adjustable inerter shock absorber which comprises an inerter and a magneto-rheological shock absorber, the lower end of the inerter is connected with the upper end of the magneto-rheological shock absorber, the inerter comprises a ball screw (1) and a ball nut (2), and the magneto-rheological shock absorber comprises a base, an outer cylinder barrel (4), a piston (5) and a rotating barrel (6). The upper end of the rotating cylinder (6) is fixedly connected with the ball nut (2), the piston (5) and the outer cylinder barrel (4) are both fixedly arranged on the base, the lower end of the rotating cylinder (6) is connected with the outer cylinder barrel (4) in an inserted mode, the piston (5) is located in the rotating cylinder (6), and magnetorheological gel is filled among the outer cylinder barrel (4), the piston (5) and the rotating cylinder (6). The damper has the advantages of attenuating the vibration amplitude and accelerating the attenuation rate at the same time, and has a wide damping adjustable range.

The invention relates to the technical field of vibration control, and particularly provides an ultralow-frequency passive self-adaptive tuning vibration absorber based on a string-mass system, which comprises a mechanical sensing assembly, a mechanical driving assembly, a mechanical transmission assembly and a tuning vibration absorption assembly which are arranged on a target structure, the mechanical sensing assembly and the mechanical driving assembly are correspondingly arranged, and the mechanical sensing assembly is used for sensing vibration of a target structure and can generate relative movement; the mechanical driving assembly is connected with the mechanical transmission assembly, and the mechanical driving assembly drives the mechanical transmission assembly to work based on relative motion generated by the mechanical sensing assembly; the mechanical transmission assembly is connected with the tuning vibration absorption assembly. The vibration absorber is wide in application range, compared with an existing self-adaptive tuning vibration absorber, the vibration absorber has the advantages that external power supply driving is not needed, the structure is simple, ultralow-frequency vibration control can be achieved, and effective control over broadband even multi-order modal vibration is achieved through a pure mechanical structure.

The invention discloses a flywheel assembly with a power generation function. The flywheel assembly comprises an inner magnetic control device, a flywheel, an assembly shaft, a flange and a power generation device. The flywheel comprises a flywheel body and a conductor, the flywheel body is provided with a flywheel cavity and a flywheel center through hole communicated with the flywheel cavity, the conductor is fixedly arranged on the flywheel body and located in the flywheel cavity, and the assembly shaft penetrates through the device center through hole of the inner magnetic control device and the flywheel center through hole and can rotate relative to the assembly shaft. The flange is fixedly sleeved on one end part of the assembling shaft and is fixedly assembled on the inner magnetic control device, the inner magnetic control device is suspended in the flywheel cavity of the flywheel body, the power generation device comprises a coil unit and a magnet for power generation, the coil unit is kept still relative to the position of the assembling shaft, and the magnet for power generation is arranged on the inner magnetic control device. The magnet for power generation is arranged on the flywheel body, and the coil unit and the magnet for power generation are both located in the device center through hole.

The present invention relates to the technical field of fitness equipment, and specifically to a spinning bike, comprising a base and a frame. A pitch adjustment assembly is provided on the base, and the pitch adjustment assembly comprises a screw rod, a drive block, an adjustment connecting rod and a drive motor. The drive block is guided to slide by the screw rod, and the angle of the frame is adjusted by adjusting the connecting rod while the drive block slides. Before the screw rod rotates, positioning blocks installed on both sides of the drive block can be unlocked from the base, so that the force generated by the frame can be transmitted to the base through the adjustment connecting rod, the drive block and the positioning block, thereby avoiding direct transmission of the force to the screw rod and the motor used to drive the screw rod to rotate, thereby solving the problem that the force is completely transmitted to the angle adjustment drive during the existing frame angle adjustment.

The utility model relates to the technical field of automobile parts, in particular to a torsion limiting shock absorber which comprises a flexible disc, an end cover, a flywheel and a friction plate, a check block is arranged on the inner edge of the flywheel, the check block and the flywheel are of an integrated structure, the flywheel is connected with the end cover, after connection, a containing cavity is formed in the end cover, the flywheel and the check block, and the end cover is connected to the flywheel. The flexible disc and the friction plate are sequentially arranged in the containing cavity in a covering mode, the center of the friction plate is connected with the damping component, the disc spring is arranged in the center of the end cover, the disc spring and the end cover are of an integrated structure, and the end cover is attached to the flexible disc through the disc spring. The flexible disc and the friction plate are sequentially connected to the side, close to the flywheel check block, of the disc spring, so that the whole torsion limiting damper is convenient to install and produce, cost is reduced, and meanwhile when the power output end of an engine outputs power to the damping component, the friction effect is better, and power transmission is more stable.

The inertia flywheel device comprises a bearing part, a driving part is arranged on the bearing part, a buffering part is arranged on the driving part, and a control part is arranged on the buffering part; the control part comprises a connecting piece, a control piece arranged on the connecting piece, a rotating piece arranged on the control piece and an adjusting piece arranged on the buffering part; the buffering part comprises a rotating shaft and a flywheel body arranged on the rotating shaft; the adjusting piece comprises a rotating disc arranged in the flywheel body, an arc-shaped groove formed in the rotating disc and a moving rod arranged in the arc-shaped groove. According to the equipment, the moving pipe is controlled to move through the hydraulic push rod, so that the rotating disc in the adjusting piece rotates, then the balancing weight is controlled to expand and contract, when inertia needs to be adjusted, only the hydraulic push rod needs to be controlled to stretch and contract, shutdown is not needed, and the working efficiency is improved.

The invention provides a mechanical bearing supporting device of a flywheel rotor and a flywheel control system, the mechanical bearing supporting device comprises a working bearing seat, a plurality of deep groove ball bearings and deep groove ball bearing outer sleeves, and the working bearing seat is arranged on the outer side of a rotor shaft head of the flywheel rotor; the plurality of deep groove ball bearings are coaxially sleeved on the rotor shaft head of the flywheel rotor; the deep groove ball bearing outer sleeve is arranged on the outer rings of the deep groove ball bearings in a sleeving manner; the inner surface of the working bearing seat is of a conical structure, a gap between the inner surface of the working bearing seat and the deep groove ball bearing outer sleeve and close to one end of the flywheel center is a first damping gap, and a gap between the inner surface of the working bearing seat and the deep groove ball bearing outer sleeve and far away from one end of the flywheel center is a second damping gap. And the first damping gap is larger than the second damping gap, so that the load borne by each deep groove ball bearing during high-speed operation of the flywheel rotor is balanced. According to the deep groove ball bearing, the load of each deep groove ball bearing is balanced, and the bearing stability is improved.

The utility model relates to a flywheel assembly of an integrated torque damping device. The flywheel assembly comprises a flywheel; the torque damper comprises a retaining plate and a coil spring, the retaining plate is provided with a first window for accommodating the coil spring, the radial outer end of the retaining plate is in anti-torque connection with the flywheel, and the radial inner end of the retaining plate is used for being in anti-torque connection with a crankshaft of an engine; the torque limiter comprises a slipping mechanism and a hub, the slipping mechanism is arranged on the radial inner side of the coil spring, and the hub is used for being connected with an input shaft of a transmission in an anti-torque mode. The flywheel of the integrated torque damping device is connected with the crankshaft of the engine as a whole, so that the assembly steps are reduced. The retaining plate integrates the functions of a retaining plate and a cover plate, the number of plates is reduced, and the axial space is optimized. The slipping mechanism is located on the radial inner side of the coil spring, so that the slipping mechanism is closer to the transmission side, overload torque transmitted from the transmission to the engine direction is limited, and the coil spring is prevented from being damaged by the overload torque.

The present invention relates to a method for producing a flywheel, in which a damping plate part is produced by permanently connecting at least a first metallic plate element (13) provided for the flywheel to at least one further material layer (14) to form a sandwich component, wherein, according to the invention, the first plate element (13) is connected by a joining process to at least a second, parallel plate layer (14), so that they lie on one another to form a disc-shaped structural unit (10). According to the invention, at least two sheet metal layers (13, 14) from different materials and / or at least two sheet metal layers (13, 14) having different material strengths are connected with each other. This enables a large variance for the production of flywheels. In this way, it is possible, for example, to produce according to this concept a flywheel having a plurality of superimposed plates adapted to the respective load situation in a defined flexibility.

This flywheel device includes: a first wheel comprising a ring gear on an outer peripheral part; and a second wheel comprising a second friction surface facing a first friction surface of the first wheel. The flywheel device has a starter motor that comprises a helical pinion that meshes with the ring gear, and starts and rotates the first wheel. The first wheel is movable between a fastening position at which the first friction surface and the second friction surface are in contact with each other, and a release position at which the first friction surface and the second friction surface are separated from each other. When starting an engine for rotationally driving the helical pinion, the first wheel is moved to the fastening position.

According to the self-adaptive damping and bionic self-balancing integrated flywheel rotor provided by the embodiment of the invention, due to the fact that the bionic multi-cavity self-balancing module does not need external regulation and control, dynamic unbalance can be compensated in real time, the dynamic unbalance far exceeds a traditional active regulation and control scheme, and vibration aggravation and bearing abrasion caused by unbalance are effectively avoided. The magnetorheological elastomer damping layer can adjust the shear modulus in a self-adaptive mode according to the vibration state, an additional external damping device is not needed, the self-repairing protection layer can conduct in-situ self-repairing on microcracks, and a brand new technical path is provided for engineering application of a flywheel energy storage system with the high rotating speed, the long service life and the high reliability.

The utility model relates to an elastic ratchet wheel structure and a flywheel, the elastic ratchet wheel structure is matched with a tower footing, the elastic ratchet wheel structure comprises a flywheel body, the flywheel body is axially through, the inner wall of the flywheel body is provided with an annular step, and the annular step divides the inner cavity of the flywheel body into a first chamber and a second chamber; the sealing cover is arranged in the first cavity; the first gear ring is axially and movably assembled in the second cavity, an elastic piece is arranged between the first gear ring and the annular step, and a plurality of first ratchet parts are distributed on the other side of the first gear ring in an annular array mode; the flywheel shaft is assembled on the tower footing, the flywheel shaft is assembled from the second cavity, sequentially penetrates through the first gear ring, the elastic piece and the annular step and extends into the first cavity to be assembled with the sealing cover in a threaded mode, a second gear ring is axially arranged on the flywheel shaft, and a plurality of second ratchet parts meshed with the first gear ring in a one-way mode are distributed on the second gear ring in an annular array mode. According to the utility model, the transmittable torque is optimized and increased, and the abrasion is greatly minimized.

The invention provides a flywheel energy storage device with elastic spokes, and relates to the technical field of robots, the flywheel energy storage device comprises a flywheel, elastic spokes, a driving power generation assembly, a central shaft, a belt and a shell; the elastic spokes are uniformly distributed between the flywheel and the central shaft; the central shaft is mounted on the shell through a bearing; the driving power generation assembly is connected with the center shaft through a belt. The working state of the flywheel energy storage device comprises an energy storage state and an energy release state; in the energy storage state, the driving power generation assembly is connected with an external power supply, the flywheel is driven to rotate through the center shaft, and energy is stored through the flywheel; in the energy release state, the flywheel rotates to drive the driving power generation assembly to rotate through the center shaft, and energy is released through the driving power generation assembly; when the rotating speed of the flywheel is increased, the elastic spokes are bent outwards, and partial stress generated by centrifugal force is released; and when the rotating speed of the flywheel is reduced, the elastic spokes recover to drive the flywheel to keep stable rotation.

The invention provides a flywheel energy storage shell and a preparation method thereof. The flywheel energy storage shell comprises a vacuum sealing layer, an energy absorption layer and a protective layer which are sequentially coated from inside to outside. The protective layer comprises a first outer layer with an arch structure, a first concrete layer filled in the arch structure, and a second concrete layer arranged between the first outer layer and the energy absorption layer. By adopting a three-layer protection system composed of the steel arch structure, the silicon carbide microsphere reinforced concrete layer and the titanium alloy solid layer, the safety performance is greatly improved, compared with a pure steel shell, the weight is reduced by 40%, the system energy density is improved by 15%, the titanium alloy consumption is reduced by 50%, and the total cost is reduced by about 35% due to the fact that the concrete layer replaces part of a composite material.

An apparatus comprising: a flywheel; a shaft; a bearing arrangement for supporting the shaft; a sealing arrangement; and a housing for housing the flywheel, the shaft, the bearing arrangement and the sealing arrangement, wherein the flywheel is mounted on the shaft, the sealing arrangement is mounted between the shaft and the housing, and the bearing arrangement is mounted both to the shaft, between the flywheel and the sealing arrangement, and to the housing; and wherein the sealing arrangement comprises a pair of seals that are configured to extend circumferentially around the shaft, the seals being arranged to form a hermetic seal against the shaft to hermetically seal the housing.

A power transmission device includes a flywheel with increased inertia and a damper device. The flywheel includes a body portion, an attachment portion, and a first protruding portion. The attachment portion is disposed radially outward with respect to the body portion. The first protruding portion is disposed radially outward with respect to the attachment portion. The first protruding portion protrudes toward a first axial side with respect to the attachment portion. The damper device is disposed on the first axial side with respect to the body portion. The damper device is attached to the attachment portion.

The invention relates in preferred embodiments, to a resonant damper (1) preferably comprising a crank (2) arranged on a shaft (3) rotatable around a rotation axis (4), the crank has a radial guide (5) having a radial extension, a spring system (6) suspending a weight (7), Wherein the weight (7) and the radial guide (5) are mutually configured to confine movement of said weight (7) to a radial direction, and prevent the weight (7) to be positioned with its centre of mass coinciding with the rotation axis (4). The radial movement is a radial movement in a reference frame rotating around said rotation axis (4). The spring system (6) is configured to force the weight (7) towards a spring force equilibrium position (8) coinciding with or in vicinity of the rotation axis (4).

The present invention relates in general to working machines with working units which are subject to fluctuating loads or have a fluctuating power consumption. The invention relates to a drive train assembly for driving such a working unit having fluctuating power consumption from a working source, having a unit transmission which converts a drive movement of the drive source into a working movement of the working unit, and which is connected to the working unit on one side by way of a transmission output element and on the other side to the drive source by way of a transmission input element, and having a flywheel energy store for mitigating load surges or fluctuations. The invention also relates to the working machine having a drive unit with fluctuating power consumption and said drive train assembly having a flywheel energy store. According to the invention, the flywheel energy store is to be connected to the drive train section leading from the unit transmission to the working unit to be driven via a branching flywheel mass section at different engagement points such that the flywheel mass moments are split and the loads are distributed to different engagement points such that overloading and premature wear at a single engagement point can be avoided and the overall size can also be reduced substantially as a result of the load distribution.

The invention discloses a lunar rover adjustable inerter suspension device based on stepless speed change. Comprising a shell, electromagnetic windings arranged in the shell in an array mode, planetary intermediate gear fixers connected with the electromagnetic windings, a flywheel arranged in the shell, an output bevel gear connected with the flywheel, and a plurality of planetary intermediate gears arranged on the outer side of the output bevel gear and connected with the output bevel gear in a meshed mode. The planetary intermediate gear is arranged in the shell, the input bevel gear is arranged on the outer side of the planetary intermediate gear and connected with the planetary intermediate gear in a meshed mode, the lead screw is arranged below the input bevel gear and fixedly connected with the input bevel gear, the lead screw nut is arranged on the lead screw and connected with the lead screw, and fixed lifting lugs are arranged at the upper end of the shell and the lower end of the lead screw nut. The planet intermediate gear is installed on the planet intermediate gear fixing device through the gear shaft, and the electromagnetic winding is connected with the planet intermediate gear fixing device. The beneficial effects of the invention are that the method effectively makes up the defects of the prior art in the aspects of adjustment flexibility, adaptability, precision and extreme environment adaptation to the moon.

The invention provides a pulley block planetary composite damping shock absorber of an ultra-long flexible blade of a wind turbine generator and a control method of the pulley block planetary composite damping shock absorber, and belongs to the field of wind power equipment. The system comprises a pulley block, a pulley block assembly, a sun inerter device, a planet inerter device and a shell plate. When the blades swing, shimmy and twist, bending deformation of the blades is transmitted to the pulley blocks through the steel wire cables, vibration displacement is amplified, the inerter system is driven to rotate at a high speed, and under the coordination effect of the inerter effect and various damping elements, the system can convert inertia force of the inerter device into reverse damping force. And energy is efficiently dissipated through multiple paths such as oil circulation and particle collision. Through elastic connection, the planetary inerter compound system achieves adjustment of damping characteristics and broadband vibration suppression, the vibration amplitude of the fan blade is remarkably reduced, the service life of the fan blade is prolonged, and the reliability of the fan blade is improved.

The present application relates to a damping device with a clutch. The damping device comprises a flywheel, a damper output flange arranged coaxially with the flywheel, and a damper spring abutting between the flywheel and the damper output flange in the rotation direction of the damping device, so as to be able to transmit torque between the flywheel and the damper output flange. Wherein the damping device further comprises a clutch disc torsionally connected with the damper output flange and located on the side of the damper output flange away from the flywheel in the axial direction, and a clutch output flange arranged coaxially with the damper output flange, at least a part of the clutch output flange being located between the damper output flange and the clutch disc in the axial direction. The clutch disc can abut on the clutch output flange in the axial direction to transmit torque therebetween, or be separated from the clutch output flange to disconnect the torque transmission therebetween. The damping device of the present application has a compact layout.

The application relates to a space paddle type inertial device, which comprises a piston driving rod, a flywheel, a rotary damper and a space paddle type rotating shaft; the space paddle type rotating shaft comprises a spherical hinge, a bearing and a connecting rod which are sequentially connected; the flywheel and the rotary damper are connected with two ends of the connecting rod respectively, and the piston driving rod is connected with the spherical hinge; the flywheel and the rotary damper rotate around the same axis, the piston driving rod moves horizontally under the drive of the outside world, the flywheel and the rotary damper are driven to rotate by the space paddle type rotating shaft, and the translation of the piston driving rod is converted into the rotation of the flywheel and the rotary damper by the space paddle type rotating shaft. The rotation of the flywheel realizes mass amplification. The application realizes mass amplification, damping energy consumption, and has the advantages of simple mechanical form, flexible installation, easy implementation, high-efficiency vibration reduction, simple structure, low cost, convenient maintenance and high energy dissipation efficiency compared with the prior art.

Composite metal flex plate, comprising: an aluminum center plate (12, 112, 212) having a circular body (18, 118, 218) defining a central opening about an axis of rotation of the composite metal flex plate, the circular body (18, 118, 218) having a perimeter (24, 124, 224, 324, 424); and a steel ring gear (14, 114, 214) including an annular body (36, 136, 236, 336, 436) and external teeth formed integrally with and disposed around the annular body (36, 136, 236, 336, 436), wherein the annular body (36, 136, 236, 336, 436) of the steel ring gear (14, 114, 214) is secured to the periphery (24, 124, 224, 324, 424) of the circular body (18, 118, 218) of the aluminum center plate (12, 112, 212) by a solid-state connection (16, 116, 216), wherein the periphery (24, 124, 224, 324, 424) of the circular body (18, 118, 218) of the aluminum center plate (12, 112, 212) comprises an axial edge (26, 126, 226) extending axially from a distal end of the circular body (18, 118, 218), the axial edge (26, 126, 226) being inclined by an angle (β) of 10° to 80° to the axis of rotation, and wherein the solid-state connection (16, 116, 216) is formed between the axial edge (26, 126, 226) of the circular body (18, 118, 218) and a surface inclined by an angle (α) of between 10° to 80° to the axis of rotation (335) of the annular body (36, 136, 236, 336, 436) of the steel ring gear (14, 114, 214).