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971 results about "Damping function" patented technology

Damping functions. The large-eddy simulation has been used to study the behaviour of ratios which enter commonly-used closure models as damping functions. The damping function enters the definition of the turbulent eddy viscosity for such closures, Here is constant and is the dissipation.

Precision vibration damping assembly and vibration damping platform composed of the assembly

The invention discloses a precision damping component and a damping platform composed of the precision damping component, and the damping platform has damping function and positioning function along a Z direction. The precision damping component comprises a passive damping part, an active damping actuator and an external frame. The passive damping part is a piston rod with a structure of double cavities, an air pocket and a pressure cavity are respectively positioned in the two cavities, and the air pocket has larger longitudinal bracing power and lower rigidity, and can isolate the vibration of attenuation high frequency. The active damping actuator is a linear voice coil motor connected in parallel with the passive damping part, and applies acting force to a passive object according to the vibration condition and location information of the controlled object, so as to drive the controlled object to move to a designated position and compensate the vibration. The damping platform composed of at least three precision damping components has the functions of vibration damping with a plurality of degrees of freedom, accurately positioning along the Z direction, focusing and leveling. The precision damping component and the damping platform can be used in the apparatus with precision damping requirements such as mask aligners, ultra-precision numerically-controlled machine tools, biochip scanners and the like.
Owner:HUAZHONG UNIV OF SCI & TECH

Novel energy automobile battery protection damping mechanism

The invention discloses a novel energy automobile battery protection damping mechanism which comprises a fixed base, a battery tank and a baffle plate, wherein a sealing tank and a piston cylinder are arranged between the fixed base and the battery tank; a horizontal main piston is arranged inside the sealing tank; a vertical main piston rod is fixedly connected with the upper end of the main piston; a rubber tube is communicated with the bottom inside the sealing tank; the rubber tube extends into the piston cylinder; the piston cylinder is connected inside a chute in a sliding manner; a support block is fixed at the upper end of a secondary piston rod; a protection plate is fixed on a side wall of the battery tank; and a vertical inner plate body is fixed on the protection plate. As the main piston rod is pushed downwards through the battery tank, the main piston is moved downwards, the air inside the sealing tank is compressed, downward movement of the battery tank is retarded, then collision is avoided, and a damping function is achieved; and moreover, the air is compressed inside the sealing tank, the secondary piston inside the piston cylinder is moved upwards, then the support blocks contacts a pressing block, the battery tank is supported, the battery tank can be conveniently recovered, and the damping effect is enhanced.
Owner:东莞市泓澈电子科技有限公司

High-voltage inverter convenient to move

The invention discloses a high-voltage inverter convenient to move. The high-voltage inverter convenient to move is simple and reasonable in structure, low in production cost, convenient to mount andcomplete in function. A moving device, with the damping function, special for the inverter is provided, the damping function is achieved, when the inverter is transported, the inverter is protected, the inverter is not prone to damage, and economic losses are reduced; a spring is arranged between a groove and a support, vibration can be effectively resisted, a handle is rotated, a clamping block clamps the inverter, shaking is prevented, damage in the transporting process is avoided, a hydraulic rod works, a lifting frame descends, a concave frame covers the inverter, the freedom degree of theinverter can be limited to a great degree, a rotating motor drives a rotating shaft to rotate, a first shaft sleeve and a second shaft sleeve move to achieve ascending and descending of the sliding rod, the height of the whole device is greatly adjusted, through motor ascending and descending, the inverter is stable and efficient, the inverter cannot be damaged, an air pressure rod extends out ofa universal wheel and is moved through the universal wheel, and after the air pressure rod is moved to the designated place, the air pressure rod retreats from the universal wheel.
Owner:SHISHI KURUI ELECTRICAL

Multifunctional comprehensive restraint device for whole construction and operation process of long-span hybrid-beam cable-stayed bridge

The invention discloses a multifunctional comprehensive restraint device for whole construction and operation process of a long-span hybrid-beam cable-stayed bridge and relates to a bridge engineering technique. The multifunctional comprehensive restraint device comprises longitudinal dampers, multidirectional slideable supports and retractable devices. Longitudinal damping devices, longitudinal comprehensive multifunctional devices and transverse windproof supports with independent functions are arranged between a main beam and bridge towers. A damping function is independently realized at the operation period of the bridge. The longitudinal comprehensive multifunctional devices realize solidifying, pushing and limiting functions in the whole construction and operation process of the bridge. The multifunctional comprehensive restraint device provides effective rigidity and damping for the operation period of the long-span hybrid-beam cable-stayed bridge and guarantees that the static and dynamic response of the bridge is within an acceptable range. At the same time, the longitudinal comprehensive multifunctional devices are used for taking a temporary solidifying function in the splicing process of the upper structural cantilever of the bridge and are also used as main beam pushing force-bearing structures under the condition of full-bridge closure, a no-stress geometrical linear bridge construction control method is realized, the functions are clear, the force is born reasonably, the economic and practical performance is high and the multifunctional comprehensive restraint device is suitable for all kinds of long-span hybrid-beam cable-stayed bridges.
Owner:CCCC HIGHWAY CONSULTANTS

Power battery aluminum shell with damping function and high safety

The invention relates to the technical field of battery accessories, and discloses a power battery aluminum shell with damping function and high safety. The aluminum shell comprises a shell body and a top cover; the top cover is fixedly connected on the top of the shell body through a fixing bolt; a placing plate is fixedly connected at the bottom of the shell body; a placing groove is opened on the supper surface of the placing plate; a battery main body is placed in the placing groove; both sides of the battery main body are provided with clamping plates. The power battery aluminum shell with damping function and high safety is provided with a first retractable spring, a first retractable rod, a balance plate, a second retractable spring and a second retractable rod; during the vibration process of the battery main body, two sides of the battery main body can be buffered and damped by the first retractable spring and the first retractable rod installed on two sides of the battery main body; the top of the battery main body can be pressed and shaken by the second retractable spring and the second retractable rod installed on the top of the battery main body. Thus, the battery main body can be damped on each side; the damping is more thorough; and the service life of the battery main body is prolonged.
Owner:江苏万达新能源科技股份有限公司

Leg joint for quadruped robot

The invention discloses a leg joint for a quadruped robot, wherein third revolute pairs are arranged at four corners of the trunk in two groups and correspond to mounting holes of hip joints. A shaft line of a worm wheel shaft of each third revolute pair is parallel to the centre line of the trunk in the length direction. A third revolute pair motor and a third worm rod are both fixed in the trunk. A third worm wheel is fixedly arranged on the worm wheel shaft. The third revolute pair motor is connected with a third worm rod, and the third worm wheel is engaged with the third worm rod. Four hip joints are connected with four upper legs through respective first revolute pair. The upper legs are connected with second leg sections through second revolute pairs. The first revolute pairs, the second revolute pairs and the third revolute pairs are all driven by independent motors. According to the leg joint disclosed by the invention, a robot can realize more complicated gait, and has stronger adaptability and obstacle crossing capability under a complicated terrain environment; due to the use of self-locking performance of the worm wheel and the worm rod, the robot has larger loading capability and stable static standing capability. The leg joint for the quadruped robot, disclosed by the invention, has the characteristics of simple structure, strong loading capability, anti-impact damping function and static standing function.
Owner:海安天一智控设备有限公司 +1

Piezoelectric speaker based on piezoelectric cantilever beam

The invention discloses a piezoelectric speaker based on a piezoelectric cantilever beam, belonging to the technical filed of piezoelectricity. The piezoelectric speaker is structured by bonding an upper layer piezoelectric ceramic piece and a lower layer piezoelectric ceramic piece of opposite polarization directions at both sides of a middle layer fiber sheet, thereby forming a piezoelectric cantilever beam; one end of the piezoelectric cantilever beam is fixed with an external frame so as to form a fixed end from which electrodes are led out; the movable end of the piezoelectric cantilever beam is connected with a vibration sheet by a link block with a damp function; and the vibration sheet is bonded to the external frame through a vibration film. The vibration sheet can serve as the main medium for driving air around the speaker and also the counter weight of the speaker, can reduce the first-order resonance frequency of the speaker effectively, and improve the effect of low pitch replay. The piezoelectric speaker provided by the invention has the characteristics of low resonance frequency, simple vibration mode and large vibration range and the like, and has the advantages of good low pitch performance, stable sound pressure output and high sound output and the like compared with a conventional surface mount type piezoelectric speaker.
Owner:TSINGHUA UNIV +1

Five-degree-of-freedom metamorphic multipurpose ship berthing device

The invention discloses a five-degree-of-freedom metamorphic multipurpose ship berthing device which comprises mounting seats, parallel berthing supports, elliptic chuck seats, magnetic chucks and electromagnetic brakes. When in berthing, the parallel berthing supports drive the elliptic chuck seats and the magnetic chucks to extend outwards from a hull, and a main ship hull is connected with a wharf or other hulls by electromagnetic force generated by the magnetic chucks after energization to realize berthing. When in unberthing, the magnetic chucks are powered off, the parallel berthing supports drive the elliptic magnetic chucks to retract into the hull. Three telescopic cylinders in the parallel berthing supports are double-acting cylinders or double-acting hydraulic cylinders, and the device has bidirectional pressure maintaining and vibration damping functions besides connecting, supporting and telescoping functions. Multipoint stable berthing can be realized by multipoint arrangement, collision force on the wharf, an offshore platform or other ships in berthing is greatly reduced, and berthing safety is ensured. The five-degree-of-freedom metamorphic multipurpose ship berthing device has the advantages of simple structure, high safety, good stability, simplicity and convenience in operation and maintenance and the like.
Owner:ANHUI UNIV OF SCI & TECH

Soundless rock drilling and splitting integrated machine

The invention discloses a soundless rock drilling and splitting integrated machine and belongs to the field of rock drilling and splitting devices. The soundless rock drilling and splitting integrated machine comprises a hinged head, a rock drilling slide rail, a splitting slide rail, a rock drilling device arranged in the rock drilling slide rail in a sliding mode and a sliding seat arranged in the rock splitting sliding rail in a sliding mode. A splitting device is fixed to the sliding seat. The soundless rock drilling and splitting integrated machine further comprises a rotating component connected to the hinged head in a rotatable and hung mode. The rock drilling slide rail, the splitting slide rail and the rotating component are fixedly connected. The distance between the center line of a drill bit of the rock drilling device and the central axis of the rotating component is equal to the distance between the center line of a splitting sharp component of the splitting device and the central axis of the rotating component. By the adoption of the soundless rock drilling and splitting integrated machine, a rotating motor or a hydraulic oil cylinder is adopted, the rotation radius equidistance principle is utilized, after rock is drilled, a splitting block of the splitting device is accurately located and fed into a drill hole, accurate locating can still be achieved after the soundless rock drilling and splitting integrated machine is used for a long time, the splitting direction can be flexibly adjusted, and the flexible damping function and the automatic lubrication function are also achieved.
Owner:湖南烈岩科技有限公司

Turnover device of vehicular display

The invention discloses a vehicle-carried display turning device, and relates to a control mechanism for fixing or mounting a display. The invention provides the vehicle display turning device which does not need to add a self-locking mechanism and a braking device, ensures that the whole friction mechanism has no clearance, has damping function on impact suffered by an output shaft, has a small structure and high mechanical efficiency, makes the output shaft bear larger impact and effectively removes free clearance, and has other characteristics of the output shaft. The device is provided with a motor, a double-wormgear worm, a permanent seat, a damping shaft, an upper friction sheet, a lower friction sheet, a damping block, a clutch shaft, a left mounting bracket, a right mounting bracket, a display screen mounting bracket, a mounting rack, a switch shaft, an angle block, and a switch plate. The double-wormgear worm is arranged inside the permanent seat; the double-wormgear worm is provided with a first wormgear worm and a second wormgear worm; a motor gear is engaged with a worm gear; a worm of the second wormgear worm is fixedly connected with a wormgear of the first wormgear worm; a wormgear of the second wormgear worm is connected with a first damping shaft; and an inner hole of the damping block is matched with the output shaft of the wormgear of the second wormgear worm.
Owner:XIAMEN INTRETECH AUTOMOTIVE ELECTRONICS CO LTD

Swinging type traditional Chinese medicinal material crushing device with damping function

The invention discloses a swinging type traditional Chinese medicinal material crushing device with a damping function. The swinging type traditional Chinese medicinal material crushing device with the damping function comprises a base, a crushing tank, a crushing motor and crushing blades; the crushing tank is arranged over the base, and the bottom of the crushing tank is hinged to the base; thecrushing motor is fixedly connected to the top of the crushing tank, and a drive shaft is fixedly connected to the shaft stretching end of the crushing motor and sleeved with a drive gear; a gear ringis fixedly connected to the inner wall of the crushing tank, a plurality of driven gears are arranged in the gear ring, and driven shafts are fixedly connected to the lower surfaces of the driven gears; and a swinging motor is fixedly connected to the upper surface of the base. According to the swinging type traditional Chinese medicinal material crushing device with the damping function, the multiple driven shafts are arranged and cooperate with the drive shaft to crush traditional Chinese medicinal materials, the crushing efficiency is greatly improved, the crushing tank swings left and right to enable the traditional Chinese medicinal materials in the crushing tank to fully make contact with the crushing blades while the traditional Chinese medicinal materials are crushed, the crushingefficiency is further improved, a certain buffering effect can be achieved through plate springs, and then vibration generated when the device runs is reduced.
Owner:HENAN HUANQIU AVIATION EQUIP TECH CO LTD

Battery holder for new energy automobile with damping function

The invention discloses a battery holder for a new energy automobile with a damping function. The battery holder comprises a battery holder body, wherein a through groove is formed in the front surface of the battery holder body; an accommodating groove is formed in the top of the battery holder body; the through groove communicates with the accommodating groove; two symmetrical first sliding grooves are formed in the inner side wall of the accommodating groove and communicate with the first sliding groove and the through groove; a baffle plate matched with the accommodating groove is put into the accommodating groove and one side surface of the baffle plate is put into the through groove; the outer side surface of the baffle plate is fixedly connected with a first sliding block matched with the first sliding groove; and the first sliding block is clamped into the first sliding groove. According to the battery holder for the new energy automobile with the damping function, shaking force can be effectively buffered, the damping property is high, effective emission of internal heat of the battery holder body is ensured, dust can be effectively blocked, the protection effect is relatively good, bruise of a battery part is effectively avoided and the service life of a battery element is effectively ensured.
Owner:SHENGZHOU YIYUAN INVESTMENT MANAGEMENT

Rail transit air spring suitable for high and cold environment and vehicle damping method

ActiveCN107120382AActs as a vertical stopReduced airless vertical stiffnessSpringsShock absorbersAir springDamping function
The invention discloses a rail transit air spring suitable for the high and cold environment and a vehicle damping method. The rail transit air spring suitable for the high and cold environment comprises an upper cover plate, an abrasion resisting plate, a limiting pressing plate, an air bag, an emergency spring and a sand glass spring. A lower seam allowance of the air bag is in sealed connection with the sand glass spring, and the emergency spring is arranged between the abrasion resisting plate and the sand glass spring. The manner that a large curve bag type air bag structure is matched with an auxiliary spring, and the emergency spring is arranged between the large curve bag type air bag structure and the auxiliary spring is adopted; in the air bag inflation state, the vertical rigidity, transverse rigidity, vertical displacement and transverse displacement of the air spring system are supplied through serial connection of the air bag and the sand glass spring; and in the air bag deflation state, the vertical damping function is achieved through serial connection of the emergency spring and the sand glass spring. By means of the rail transit air spring suitable for the high and cold environment and the vehicle damping method, the small inflation and gas-free vertical and transverse rigidity and large transverse displacement can be provided, and the gas and gas-free running comfort and safety requirements in the high and cold low-temperature environment of -50 DEG C can be met.
Owner:ZHUZHOU TIMES NEW MATERIALS TECH
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