134results about How to "Achieve vibration damping effect" patented technology

The invention discloses an energy feedback type damper which can combine piezoelectric ceramic and magnetorheological fluid, wherein the energy feedback type damper can supply electric energy which is generated by piezoelectric electricity generation units due to vibration to the magnetorheological fluid for shock absorption. The energy feedback type damper comprises a cylinder body, a piston rod, the upper piezoelectric electricity generation unit, the lower piezoelectric electricity generation unit, an electric energy extraction and storage unit, a pressure sensor and a controller. The upper piezoelectric electricity generation unit is installed outside a rod body in a sleeved mode. An upper partition plate is arranged below the upper piezoelectric electricity generation unit in an overlapping mode. The lower piezoelectric electricity generation unit is arranged on the inner bottom surface of the cylinder body. A lower partition plate is arranged on the lower piezoelectric electricity generation unit in an overlapping mode. An upper magnetorheological fluid chamber containing magnetorheological fluid is formed between the upper partition plate and a piston body. A lower magnetorheological fluid chamber containing magnetorheological fluid is formed between the piston body and the lower partition plate. The piston body is provided with a plurality of throttling holes. An excitation coil mechanism is installed in the piston body. The upper piezoelectric electricity generation unit and the lower piezoelectric electricity generation unit are connected with the electric energy extraction and storage unit. The pressure sensor is connected with the controller. The electric energy extraction and storage unit is connected with the excitation coil mechanism through the controller. The pressure sensor is installed on the upper partition plate.

The invention discloses a multi-dimensional collision energy consumption mass pendulum damper which consists of a mass ball, a steel cable, a metal cylinder and a viscose elastic material layer, wherein the metal cylinder is an inverted cylinder opening vertically downward; the mass ball, the steel cable and the viscose elastic material layer are all located in the metal cylinder; the mass ball and the steel cable are located in the middle of the metal cylinder; the upper end of the steel cable is fixedly connected with a cylinder bottom plate of the metal cylinder; the lower end of the steel cable is fixedly connected with the mass ball; the mass ball is suspended in the metal cylinder; the viscose elastic material layer is attached to the inner wall of the metal cylinder; and the viscose elastic material layer is arranged in a position capable of enabling collision with the mass ball when the mass ball swings in the metal cylinder so as to realize energy absorption, energy consumption and shock absorption. The damper disclosed by the invention can reduce the vibration reaction of the structure and solve the problem of the structure in seismic resistance and wind resistance.

The invention belongs to the technical field of vibration attenuation of electrical equipment and power transmission circuits, and relates to a collision energy-dissipation spacing rod. The collision energy-dissipation spacing rod is composed of a mass ball, a spring, a metal hollow ball, a metal circuit tube, a spacing rod frame, a wire clamp and a viscoelastic material layer. The invention aims to solve the problems of being single in function and limited in vibration attenuation effect in the existing spacing rod. When the external environment load is relatively low, the vibration attenuation effect is realized with the help of swinging of the mass ball; when the external environment load is relatively high, the swinging amplitude of the mass ball is increased; the mass ball is collided with a viscoelastic material on the inner wall of the metal hollow ball; the viscoelastic material can absorb a part of energy in the collision process, such that the energy dissipation effect is realized; because the mass ball can swing in a space in any direction and can be collided with the viscoelastic material on the inner wall of the metal hollow ball, the collision energy-dissipation spacing rod has the multi-dimensional vibration attenuation characteristics; and furthermore, the collision energy-dissipation spacing rod is simple to design and manufacture and can be widely applied in the technical field of vibration attenuation of electrical equipment and power transmission circuits.

The invention provides an oil-gas suspension cylinder and a vehicle. The oil-gas suspension cylinder comprises a cylinder barrel, a throttling piston, a piston rod and a pneumatic piston, wherein thethrottling piston is arranged in the cylinder barrel, and is used for partitioning the space in the cylinder barrel into a roded cavity and a rodless cavity; the piston rod is located in the roaded cavity, and connected with the throttling piston; a piston rod barrel cavity is formed in the piston rod; the pneumatic piston is arranged in the piston rod barrel cavity slidably; the piston rod barrelcavity is partitioned by the pneumatic piston into a throttling cavity and a gas cavity independent of each other; and the throttling cavity is adjacent with the rodless cavity and communicates withthe roded cavity. Due to the technical scheme of the oil-gas suspension cylinder, oil-gas separation in the oil-gas suspension cylinder is effectively achieved, so that damping force in two directionsin the oil-gas suspension cylinder is more balanced, and the driving stability of the vehicle can be kept easily; the oil-gas ratio can also be accurately controlled, inflating and deflating are moreconvenient and faster, and maintaining is convenient; and cavitation by mixed gas in oil liquid on sealing pieces and parts can also be eliminated, and the service life of the oil-gas suspension cylinder is prolonged.

The invention discloses a thermal conductive damping plug-in locking assembly for electronic equipment, and aims to provide a fast locking assembly controllable in force transfer and reliable in locking. The locking assembly comprises a bar sliding block (2) which is mounted on a bar base (1) and can slide, a plurality of oblique cylinders or oblique teeth arranged longitudinally are made on the bar base (1), the same number of oblique holes or oblique slots are formed in the bar sliding block (2), special-shaped elastic elements are mounted between the bottoms of the oblique holes or oblique slots of the bar sliding block and the tops of the oblique cylinders or oblique teeth of the bar base, and the oblique cylinders or oblique teeth on the bar base are inserted into the oblique holes or oblique slots of the bar sliding block; and under the coordination of a fixed limiting block (4) and a limiting block (6) mounted at two ends of the bar base, the bar sliding block is pulled or pushed via a screw (5) connected to the fixed limiting block and the bar sliding block, to drive an outer shell (3) to slide up and down on the bar base. The locking assembly is applicable to fast locking and fixation of an electronic module or a PCBA (Printed Circuit Board Assembly) installed in a case slot of the electronic equipment.

The disclosed liquid seal anti-vibration device is provided with: an inner tube (1) and outer tube (2); rubber bodies (3, 4) connecting said inner and outer tubes (1, 2) in a liquid-tight manner at two positions separated in the axis direction; a partition wall which, disposed between the two rubber bodies (3, 4), divides into two parts in the axis direction the space between the inner and outer tubes and which comprises an annular rigid member (5a) and an elastic member (5b); liquid chambers (8, 9) formed by sealing a noncompressible fluid in each of the spaces formed by the partition wall (5); and a restricted passage (7) allowing communication between the two liquid chambers (8, 9) formed by the partition wall (5). The aforementioned partition wall (5) is configured from the annular rigid member (5a), which protrudes from the inner tube (1) towards the outer tube side, and from the elastic member (5b), which connects said annular rigid member (5a) to the outer tube (2). The aforementioned restricted passage (7) is configured from one or multiple passage grooves (5c), which, formed on the outer peripheral surface of the annular rigid member (5a), extend at least one time around the circumference thereof, and from a bounding rigid tube member (6) which, attached to the aforementioned elastic member (5b), seals the openings of the passage grooves (5c) via a seal member (5d) in a liquid-tight manner.

The invention relates to the technical field of bridge vibration control, in particular to a swing type lever mass damper capable of controlling spatial vibration of a stay cable. One end of a first connecting rod is provided with a connecting part used for being connected with the stay cable, the other end of the first connecting rod is provided with a damper body, a first rotary shaft is rotatably connected with the middle of the first connecting rod, and the damper body is arranged to generate damping force when the first connecting rod rotates around the first rotary shaft; and one end ofa second connecting rod is rotatably connected with the first rotary shaft, a second rotary shaft is rotatably connected with the other end of the second connecting rod, the second rotary shaft is fixedly connected with a supporting seat, and the supporting seat is used for being fixed to a bridge floor. According to the swing type lever mass damper capable of controlling spatial vibration of thestay cable, when in-plane vibration is conducted on the stay cable, vibration of the stay cable drives the second connecting rod to rotate through the first connecting rod, the connecting part of thefirst connecting rod and the stay cable are rotatably connected with each other, the amplitude of rotation of the second connecting rod driven by the first connecting rod is larger, and therefore a better in-plane vibration damping effect is achieved.

A space inhaul cable anti-collision vibration-isolation type universal connection device comprises two semicircular cable hoop assemblies which are each composed of an A-type semicircular cable hoop and a B-type semicircular cable hoop, and a buffering type universal rotary connector assembly. The every two semicircular cable hoops are connected together through a connecting bolt I in a fastened mode, and PE cable bodies are fixed and connected together through the connecting bolts I; the buffering type universal rotary connector assembly comprises a high-damping elastomer, two universal ballbearings located at the two ends of the high-damping elastomer correspondingly, a compression spring and an elastic sealing body, wherein the compression spring and the elastic sealing body are located in the high-damping elastomer; the universal ball bearings are provided with threaded holes, and the universal ball bearings and the two semicircular cable hoop assemblies are connected together through connecting bolts II, so that the two semicircular cable hoop assemblies and the buffering type universal rotary connector assembly are connected together in a fastened mode to form the space inhaul cable anti-collision vibration-isolation type universal connection device. According to the space inhaul cable anti-collision vibration-isolation type universal connection device, collision betweenthe cables can be prevented, mutual dragging between cable bodies is achieved, and the vibration isolation and reduction effects are achieved; and the demand of multi-angle connection of the space inhaul cables can be met.

The invention discloses an axle sleeve shock absorber and a vehicle. The axle sleeve shock absorber comprises a rubber axle sleeve body (10), a sealing rubber ring (20) and a metal shell (30), wherein the rubber axle sleeve body comprises an axle hole (11); a ring-shaped groove (12) which extends along the circumferential direction of the rubber axle sleeve body is formed in the peripheral surface of the rubber axle sleeve body; the sealing rubber ring is embedded in the ring-shaped groove so as to limit a ring-shaped channel with the ring-shaped groove; and damping fluid (70) is filled in the ring-shaped channel. The vehicle comprises the axle sleeve shock absorber. Through the technical scheme, when an external connection shaft which is arranged in the axle hole vibrates at low frequency, the axle sleeve shock absorber deforms due to the extrusion from the external connection shaft and load, the damping fluid flows back and forth in the ring-shaped groove, and the damping fluid generates friction with the wall surface of the ring-shaped groove and the inner circumferential surface of the sealing rubber ring to convert the kinetic energy into heat, so that the vibration energy is dissipated and the function of absorbing the shock in a low and medium frequency range is realized.

The invention discloses an electricity meter mounting rack. The electricity meter mounting rack comprises a bottom plate, two vertical plates and a supporting mechanism are mounted on the bottom plate, the two vertical plates are symmetrically mounted at the two ends of the supporting mechanism, a supporting plate and a limiting mechanism are mounted on one vertical plate, a supporting frame is mounted on the supporting plate, the limiting mechanism is matched with the supporting plate, a vibration reduction mechanism and a locking mechanism are installed on the other vertical plate, the vibration reduction mechanism is matched with the supporting plate, and the locking mechanism is installed on one side of the other vertical plate and matched with the supporting plate. More electricity meters can be installed in a limited space, workers can manage the electricity meters conveniently, more space is saved, later meter reading and maintenance of the workers are facilitated, the device has a vibration reduction function, the electricity meters can be prevented from being damaged on objects with large vibration, the indication precision of the electricity meters is guaranteed, and theservice lives of the electricity meters are prolonged.

The invention discloses a suspension and a vehicle. The suspension comprises an upper cover plate, a lower bottom plate opposite to the upper cover plate and an elastic side wall fixed between the upper cover plate and the lower bottom plate, wherein the elastic side wall, the upper cover plate and the lower bottom plate are connected to constitute a closed hydraulic chamber; a partition board is arranged in the hydraulic chamber and divides the hydraulic chamber into two cavities; damping holes are formed in the partition board, so that a damping liquid circulates between the two cavities through the damping holes. Therefore, when the suspension is subjected to low-frequency and large-amplitude vibration, the elastic side wall is subjected to compression deformation, accordingly, the damping liquid circulates in the two cavities and produces friction with the inner peripheral surface of the elastic side wall, the damping holes and the wall surface of the partition board, kinetic energy is converted into heat energy, meanwhile, part of kinetic energy can be absorbed through deformation of the elastic side wall, and vibration reduction in a low-frequency range is realized; when the suspension is subjected to high-frequency and small-amplitude motivation, the damping liquid almost has no time to flow and vibrates at a high speed together, so that the high-frequency dynamic stiffness of the suspension is improved, and dynamic hardening is eliminated.

The invention discloses an assembly type intelligent vibration isolator. The assembly type intelligent vibration isolator is used for floating support of a floating slab track in the vertical direction. The assembly type intelligent vibration isolator comprises an inner barrel assembly and the outer barrel assembly which are arranged in a sleeved mode in the vertical direction. The upper end of the outer barrel assembly and the floating slab track are integrally formed. The inner barrel assembly is sleeved with the outer barrel assembly, the lower end of the inner barrel assembly extends out of the lower end of the outer barrel assembly and then is used for being connected with a track foundation, and the inner barrel assembly is used for supplying elastic supporting force and hydraulic damping force for telescopic arrangement of the outer barrel assembly in the vertical direction so as to conduct floating supporting on the floating slab track in the vertical direction to reduce vibration. The assembly type intelligent vibration isolator further comprises a vibration energy conversion device. The vibration energy conversion device is arranged in the outer barrel assembly and connected with the inner barrel assembly, and is used for absorbing vibration energy generated by the inner barrel assembly under the action of the outer barrel assembly, converting the vibration energy into electric energy and storing the electric energy so as to supply power to low-power electrical apparatus elements along the floating slab track.

The invention relates to a device for reducing the vibration in the rotating process of rotating elements such as a gear or a gear shaft and the like in an automobile speed changer, in particular to a vibration reduction device of rotating elements. The vibration reduction device comprises a casing (4), a guide part (6) and a rolling body (7), wherein the casing (4) is provided with a sunk part (3), the guide part (6) is fixedly arranged in the sunk part (3) and is provided with a guide surface (5), the rolling body (7) is arranged between the guide surface (5) and the outer surface (2) in a rolling way, and a spring (8) for supporting the rolling body (7) is arranged on the casing (4). When the scheme is adopted, the vibration reduction effect is realized during the abnormal rotation of the rotating elements, the noise caused by the abnormal rotation is further reduced, and the structure is simple.

The invention discloses an efficient double-layer multistage vibrating screen which comprises a base, a rack, an upper-layer fixed screen box, an upper-layer floating screen box, a lower-layer fixed screen box, a lower-layer floating screen box and a vibration excitation movement device. The upper-layer floating screen box and the lower-layer floating screen box are suspended and mounted on the rack through multiple upper-layer elastic suspension rods and lower-layer elastic suspension rods which are symmetrically arranged left and right, and flexible screens are connected between two adjacent screen supporting frames of the upper-layer fixed screen box and the upper-layer floating screen box and two adjacent screen supporting frames of the lower-layer fixed screen box and the lower-layer floating screen box. The vibration excitation movement device comprises an eccentric vibration excitation shaft, a driving vibration exciter, a driven vibration exciter, spring guide devices, a fixing frame, an up-down limiting guide sliding mechanism, an upper-layer transmission rod, a lower-layer transmission rod and a steering rod. According to the efficient double-layer multistage vibrating screen, on the premise that material particles can be better, rapidly and comprehensively screened in a layered manner, dry type efficient screening of materials large in viscosity and difficult to screen can be achieved, the fine particle material screening probability is increased, and the efficient double-layer multistage vibrating screen is particularly suitable for raw coal grading screening in the coal dressing process.

The invention provides a global controllable duplex semi-active vehicle suspension system which comprises a guide mechanism and a four-quadrant semi-active damping adjustable actuator, the four-quadrant semi-active damping adjustable actuator comprises a damping mechanism and a duplex mechanism, and the duplex mechanism comprises a first rack, a second rack and a reversing gear. The reversing gearis located between the first rack and the second rack and engaged with the first rack and the second rack. The damping mechanism comprises two damped and adjustable shock absorbers, the top ends of shock absorber bodies of the two shock absorbers are jointly installed on the same tower top, and the bottom ends of piston rods of the two shock absorbers are connected with the top ends of the two racks respectively; the bottom end of the first rack is hinged to a steering horn of the guide mechanism, and the tower top of the damping mechanism is connected with a vehicle body. And a gear shaft ofthe reversing gear is connected with the frame or the vehicle body through a connecting rod. The global controllable duplex semi-active vehicle suspension system has the advantages that the semi-active vehicle suspension system has a global control range and is low in energy consumption and high in reliability.

The invention relates to a device and process for operating at least one contact roller (1) in contact with a take-up roller (0) or with a polymer film bale (0') wound to the take-up roller (0), preferably in a plant for stretching a polymer film which is, after the stretching step, wound to said take-up roller (0) rotatable around a rotational axis, said at least one contact roller (1) being rotatable around a rotational axis arranged parallel to the take-up roller's rotational axis, being supported movably by variable distances perpendicular relative to the take-up roller's rotational axis and providing for a permanent application of a predetermined pressure to the polymer film (2) during said winding to the take-up roller or polymer film bale (0') along a contact line being parallel to the axes of the take-up and contact rollers (0, 1) and on the surface of the contact roller (1) and take-up roller (0) or polymer film bale, said device comprising a direct gearless-drive motor means (10) for exerting a rotational drive force around a motor axis (11); said motor axis (11) being substantially parallel to the axes of the contact and take-up rollers (0, 1) and being capable of actuating force transmission means (20) by its rotational movement; said force transmission means (20) being connected to and actuated by said motor means (10) and transforming the rotational drive force exerted by the axis (11) of the direct gearless-drive motor means (10) into a translational drive force substantially perpendicular to the motor axis (11); and said force transmission means (20) being capable of transmitting said translational drive force to the contact roller (1), thereby moving the contact roller (1) towards, or away from, the take-up roller (0).

The invention relates to wireless communication equipment with a good damping effect. The wireless communication equipment comprises a main body, a circuit board and two antennas; the main body is ina cuboid shape; the circuit board is horizontally arranged in the main body; the two antennas are vertically arranged on the two sides of the main body respectively; a network signal processing systemis arranged in the main body; an auxiliary mechanism and four buffer mechanisms are arranged in the main body; the buffer mechanisms are distributed on the circuit board in a matrix manner; the buffer mechanism comprises a mounting hole, a fixing rod, two connecting assemblies and four buffer assemblies; the connecting assembly comprises a connecting ring and a first spring; the auxiliary mechanism comprises a baffle and two auxiliary assemblies; and each auxiliary assembly comprises a rotating unit and a detecting unit. According to the wireless communication equipment with the good dampingeffect, the buffering and damping effects are achieved through the buffering mechanism, in addition, the function of storing the antenna is achieved through the auxiliary mechanism, and the situationthat the antenna is smashed due to the fact that an object falls off during an earthquake is prevented.