1793results about "Dampers-spring combinations" patented technology

A hydraulic damper comprises a main tube, a piston assembly, a base valve assembly, and a compression stop assembly. The compression stop assembly includes an insert defining an inner chamber, and a sleeve displaceable along with the main piston assembly and configured to be slidably introduced inside the inner chamber. The sleeve has a diameter lower than the diameter of the main tube defining a first external flow channel between the sleeve and the main tube; the sleeve is attached to the piston assembly by a spring disposed within the sleeve; and the insert is provided with a plurality of axially-spaced holes and has an annular flange adjoining the inner wall of the main tube and separating the compression chamber from a second external flow channel between the radially external outlets of the holes and the base valve assembly.

The invention discloses a rigidity-adaptive three-degree-of-freedom low-frequency electromagnetic vibration isolator, and belongs to the technical field of precise vibration isolation. The rigidity-adaptive three-degree-of-freedom low-frequency electromagnetic vibration isolator comprises three sets of low-frequency electromagnetic vibration isolators formed by connecting rigidity-adaptive electromagnetic arrays and spiral springs in parallel. The spiral spring stably supports the load in a passive mode and effectively isolates vibration of middle and high frequency bands; the rigidity self-adaptive electromagnetic array generates high negative rigidity through a moving magnetic array and a fixed magnetic array which are composed of four columns of vertically magnetized equal-cross-section cubic permanent magnets, coil current is adjusted in real time through acceleration feedback, external excitation and load mass changes are responded, the negative rigidity is dynamically adjusted, and the requirement for three-degree-of-freedom near-full-band vibration isolation is met. The vibration isolator has adjustable low dynamic rigidity in the vertical and horizontal rotation freedom degrees, the vibration isolation frequency is low, the frequency band is wide, a super-quiet environment is provided for tip equipment, and the instrument precision is remarkably improved.

Provided is a single degree of freedom vibration isolator / damper system capable of overload protection. The vibration isolator reduces vibration transmitted to or from an isolated spacecraft component that generates micro-vibrations. The system isolates sensitive components and vibration sources from the spacecraft. The system may consist of a 1) first spring element in series with a first damper element; 2) a second spring element in parallel with the first spring element and first damper element; and 3) a support member that serves as the overload protection device.

The invention relates to the technical field of damping and shock absorption, in particular to a damping-adjustable composite shock absorption system for textile printing and dyeing equipment, which comprises a bottom plate and a top plate, a first shock absorption unit and a movable plate are mounted between the bottom plate and the top plate, and a first buffer spring is fixedly connected between the top plate and the movable plate; a second damping unit is installed between the movable plate and the bottom plate. During damping, vibration is buffered through telescopic deformation of a first buffer spring and a second buffer spring, oil liquid is pushed to flow in backflow oil pipes through vertical movement of a first piston rod, vibration energy is consumed through friction force between the oil liquid and the backflow oil pipes, and vibration of a machine body is restrained; the different backflow oil pipes are switched to be communicated with the oil storage cavity through the switching mechanism, the longer the backflow oil pipes are, the larger the on-way resistance when oil passes through the backflow oil pipes is, the higher the damping force is, and the damping device can be conveniently installed on textile printing and dyeing equipment with different vibration intensities for damping.

A six-degree-of-freedom adaptive active and passive composite space electromagnetic array damper belongs to the technical field of precise vibration isolation, and uses six sets of electromagnetic vibration isolation dampers which are connected with an upper plate and a substrate and are arranged in a Stewart mode to generate low-frequency high damping and high-frequency low damping characteristics in six degrees of freedom, so as to comprehensively and effectively isolate tiny vibration interference of different frequencies. Each set of electromagnetic vibration isolation damper adopts 4n (n is greater than or equal to 1, n belongs to N +) layers which are arranged in an array along the axial direction, vertical magnetized uniform-section magnetic rings between adjacent layers are used for constructing a high-damping excitation magnetic field, the change of external excitation frequency is responded in real time, the magnitude and direction of coil current are precisely regulated and controlled through a speed feedback control method, the damping force is dynamically adjusted to adapt to different working conditions, and the vibration isolation effect is good. And the optimal vibration isolation effect is ensured. Due to the adaptability and the stability of the self-adaptive active and passive composite space electromagnetic array damper, the self-adaptive active and passive composite space electromagnetic array damper still keeps high vibration isolation performance in a multi-degree-of-freedom and frequency-diversified vibration environment, and stable operation of precise instruments and equipment is guaranteed.

The invention discloses a magneto-rheological multi-dimensional vibration isolator, belongs to the field of intelligent vibration control, solves the problems that a traditional vibration isolator can only carry out vibration isolation in a single direction in a limited installation space and parameters cannot be adjusted, and comprises a shell, a rubber main spring, a spherical hinge piston, a cylinder barrel, a magnetic core assembly and a rubber bottom film. When relative movement occurs between a protected device connected with the vibration isolator and a vibration excitation object, the spherical hinge structure converts movement in all directions into vertical movement of the piston, so that magnetorheological fluid is pumped and flows through the magnetorheological fluid annular damping channel to generate damping; and the yield stress of the magnetorheological fluid in the magnetorheological fluid annular damping channel is changed by controlling the input current of the coil, so that the output of different damping forces is realized. The magneto-rheological damper, the rubber vibration isolator, the spherical hinge structure and the piston are organically combined, the structure is simple and compact, and excellent multi-dimensional vibration control, vibration isolation system parameter adjustability, wide-frequency-band vibration isolation and impact resistance are achieved.

The invention relates to an intelligently adjustable motorcycle shock absorber, and relates to the technical field of shock absorbers. The invention comprises a spring system, a damping system, a nitrogen tank system and a thermal control system. The spring system comprises a spring upper seat device, a spring body and a spring lower seat device which are installed in sequence. The damping system comprises a damping tube, a damping rod and an upper mounting seat. The damping rod is slidably installed in the damping tube, and the lower end of the damping rod is installed on the spring lower seat device. The damping rod is provided with a damping flow channel. The nitrogen tank system is divided into an oil chamber and an air chamber. The thermal control system is respectively connected with the oil chamber and the upper chamber. The thermal control system comprises a thermal control mounting block, a thermal control airbag and a thermal control piston. The thermal control mounting block is provided with a thermal control channel. The thermal control airbag is installed on the thermal control mounting block. The thermal control piston is slidably installed on the thermal control mounting block. The thermal control piston points to the thermal control channel. The thermal control piston is transmission-connected with the thermal control airbag, and can automatically increase the damping after the viscosity of the shock-absorbing oil is reduced.

A damping device includes a cylinder having a damping fluid, and a piston to be actuated via a piston rod and movable through the damping fluid during a damping stroke. A flow channel allows the damping fluid to pass through the piston during the damping stroke. A control piston is mounted in / on the piston to be movable, and a cross section of the flow channel is changeable by a movement of the control piston relative to the piston. A force accumulator can move the control piston relative to the piston with a return force counteracting a flow force exerted by the damping fluid on the control piston during the damping stroke. A control aperture allows a pressure drop proportional to the flow force and the speed of the piston to occur, and a target speed for the piston is dependent on a position of the piston relative to the cylinder.

Elastomeric cushion members may include a plurality of interconnected buckling walls including an elastomeric material. The interconnected buckling walls may together define a plurality of columns. A perforated skin may extend between at least some of the plurality of interconnected buckling walls of at least some of the plurality of columns. Methods of making elastomeric cushion members may involve interconnecting a plurality of buckling walls including an elastomeric material. The interconnected buckling walls may together define a plurality of columns. A perforated skin may be positioned to extend between at least some of the plurality of interconnected buckling walls of at least some of the plurality of columns.

The invention provides a suspension actuator integrating electromagnetic-oil-gas-inerter characteristics and a control method thereof.The actuator comprises a piston rod, a guide rod, a spiral groove sleeve, a stator iron core and a straight rod, a controllable damping valve assembly is arranged in the piston, the bottom end of the piston rod is connected with the piston, the top end of the guide rod penetrates through the piston and extends into the piston rod, and the spiral groove sleeve is arranged in the spiral groove sleeve; a spiral groove is formed in the inner circle face of the spiral groove sleeve, an electromagnetic coil is embedded in a groove of the stator iron core, the stator iron core is fixed to the spiral groove sleeve / piston rod, the outer circle face of the straight rod is sleeved with a permanent magnet, and the straight rod is fixed to the piston rod / spiral groove sleeve. A damping hole is formed in the piston in the axial direction; the piston rod, the piston and the stator core divide the interior of the actuator into an upper cavity, a middle cavity and a lower cavity. By electrifying the electromagnetic coil and the controllable damping valve assembly, the suspension can work in a passive mode, a semi-active mode and an active mode. The suspension actuator has the characteristics of electromagnetism, oil gas and inerter at the same time, the suspension control bandwidth is widened, and the energy consumption of an electromagnetic system is reduced.

A large-scale precise micro-vibration isolation self-adaptive active and passive composite space electromagnetic array damping regulation and control device belongs to the technical field of vibration isolation and adopts 4n (n is greater than or equal to 1 and n belongs to N +) layers of uniform-section magnetic rings which are arranged in an array along the axial direction and are vertically magnetized between adjacent layers to form an inner permanent magnet array and an outer permanent magnet array which are coaxially nested, so that a high-flux-density excitation magnetic field is constructed around a conductor plate; the conductor plate moves relative to the magnetic field to generate a strong damping effect. When the external excitation frequency changes, the current in the coaxial nested coil on the outer side of the conductor plate is accurately regulated and controlled through speed feedback, and the damping force is dynamically adjusted. The high damping characteristic is shown during low-frequency micro-vibration, and the vibration transmissibility is effectively reduced; and during high-frequency micro-vibration, the low-damping characteristic is presented, and high-efficiency attenuation of vibration interference is realized. According to the active and passive composite damping regulation and control strategy, the adaptability and stability of large-scale precise micro-vibration isolation and the vibration isolation performance of the large-scale precise micro-vibration isolation in a complex vibration environment are enhanced.

The utility model discloses a motorcycle shock absorber convenient to fix and install, which comprises a telescopic rod, first connecting seats are fixedly welded at two ends of the telescopic rod, a buffer damping spring is sleeved on the telescopic rod, second connecting seats are arranged on the two first connecting seats, one end of each second connecting seat is fixedly welded with an installation block, and the other end of each second connecting seat is fixedly welded with a damping spring. A first groove is formed in one side wall of the second connecting seat, an inserting block is slidably connected into the first groove, an inserting groove is formed in the first connecting seat, and a clamping assembly used for clamping the inserting block is arranged on the first connecting seat. According to the shock absorber, the inserting groove, the movable plate, the elastic spring and the clamping block which are arranged on the first connecting seat are matched with the inserting block, the threaded rod, the threaded groove and other parts which are arranged on the second connecting seat, so that the first connecting seat and the second connecting seat can be quickly connected, fixed or disassembled, and the shock absorber is more convenient to disassemble and assemble; the disassembly and assembly convenience of the shock absorber is improved, and time and labor are saved.

The invention discloses an automobile shock absorber and a buffer test device thereof, and relates to the technical field of automobile shock absorbers, the automobile shock absorber comprises a shock absorber main body, one end of the shock absorber main body is provided with a mounting hole, and a position, close to the mounting hole, of the shock absorber main body is provided with a test positioning member; and the other end of the shock absorber main body is provided with a detachable detection top piece. The buffer test device of the automobile shock absorber comprises a test board, a sensing detection mechanism, a telescopic installation clamping piece and a simulation turntable mechanism. The simulation turntable mechanism drives the reciprocating screw rod to synchronously rotate in the rotating process, the reciprocating screw rod enables the matched screw rod sleeve to reciprocate, and the screw rod sleeve drives the linkage ring to transversely reciprocate, so that the linkage ring drives the distributed sliding bumps to slide relative to the simulation turntable mechanism through the first linkage rod to adjust the projection height; therefore, different-degree bumpy road surfaces can be automatically adjusted and simulated.

The invention relates to a stroke-sectioned adjustable variable-damping inflatable hydraulic multi-damping device, and belongs to the technical field of vibration control. Comprising a roll shaft support assembly, a working cylinder assembly, a spring damping assembly and a piston mechanism assembly. The working cylinder assembly is mainly composed of a connecting pull ring, a main liquid storage cylinder, a limiting device, tightness adjusting threads, a piston rod connecting position, an auxiliary liquid storage cylinder and an air storage cylinder. The spring damping assembly is mainly composed of an adjusting spinning roller, a damping spring, a spinning roller damping gasket and a spring damping gasket. The piston mechanism assembly is composed of a piston rod and driving pistons on the two sides. The roller shaft support assembly is composed of a roller shaft fixing support and a pin. Through mechanism linkage of the liquid storage cylinder and the air storage cylinder, the inflatable hydraulic damping device is formed, and the purposes of damping changing and vibration reduction are achieved. The shock resistance and the transmission efficiency of a vibration reduction system can be improved, the energy consumption effect, the structural rigidity and the stability are enhanced, and the advantages of being simple in structure, convenient to implement and the like are achieved.

The utility model discloses servo vacuum liquid filling press fitting equipment which comprises a rack, a workbench is fixedly arranged in the middle of the rack, a vacuum liquid filling sealing mechanism is arranged on the upper portion of the workbench, and a movable press fitting mechanism is arranged on the upper portion of the rack. The vacuum liquid filling sealing mechanism comprises a base, a positioning sleeve used for containing the automobile hydraulic bushing is arranged in the middle of the base, and an inflatable sealing ring is arranged on the upper portion of the positioning sleeve. The movable press-fitting mechanism comprises a servo electric cylinder vertically and fixedly arranged on the upper portion of the rack, the telescopic end of the servo electric cylinder is fixedly connected with a movable plate, a pressing plate is fixedly arranged at the bottom of the movable plate, and a pressing head right facing a middle hole of the positioning sleeve is fixedly arranged at the bottom of the pressing plate. According to the utility model, the automatic vacuumizing, liquid filling, press-fitting sealing and residual liquid recycling operations of various hydraulic bushings with different models and sizes can be realized, the equipment is stable and reliable, the sealing performance of the automobile hydraulic bushing can be ensured, and the product quality and the production efficiency can be improved.

The utility model discloses an air spring support seat, an air spring and a vehicle, the air spring support seat comprises an upper air chamber assembly, a lower air chamber assembly, an upper air chamber assembly and a lower air chamber assembly, the upper air chamber assembly is provided with a first accommodating cavity; the top rubber assembly comprises an elastic body, the elastic body is provided with a first flange, the elastic body comprises a first cavity and a second cavity which are separated by the first flange, and at least one groove is formed in the first flange; the top rubber assembly is arranged in the first containing cavity, the first flange is attached to the bottom wall of the first containing cavity, and the first cavity is communicated with the second cavity through the groove. According to the technical scheme, the elastic body can be prevented from moving in the radial direction, and therefore the durability of the top rubber assembly is improved.

The multi-mode composite damping device comprises an air bag, a movable supporting assembly, a steel wire rope damper and a base, the air bag is a cavity made of rubber, the movable supporting assembly comprises an upper supporting plate, a supporting column and a lower supporting plate, the supporting column is inserted into the top end of the air bag and extends in the direction of the bottom end of the air bag, and the air bag is fixedly connected with the supporting column; the upper supporting plate is located outside the top end of the air bag and fixedly connected with the end of the supporting column, the lower supporting plate is located in the air bag, the end of the lower supporting plate is fixedly connected with the bottom end of the air bag, and the steel wire rope vibration damper is located in the air bag and comprises a fixing part and an elastic part, the supporting column is sleeved with the fixing part, and the fixing part is slidably connected with the supporting column. The elastic part is composed of a plurality of steel wire ropes, one ends of the steel wire ropes are fixedly connected with the side face of the fixing part, the other ends of the steel wire ropes are fixedly connected with the side face of the lower supporting plate, and the base is fixedly connected to the bottom of the outer side of the air bag.

Provided in the present invention is a self-centering shear-resistant device with low prestress requirements for unidirectional-fixture force transmission, the self-centering shear-resistant device comprising a replaceable energy-dissipation system, a self-centering prestress system, and a support and transmission mechanism configured for connection to the outside and energy input, wherein the energy-dissipation system, the self-centering prestress system and the support and transmission mechanism form an integrated unit, and the support and transmission mechanism is connected to the outside to introduce energy. When the device is subjected to shear deformation, the energy-dissipation system is subjected to tensile yielding deformation, and at the same time, the self-centering prestress system is subjected to compressive deformation; and resetting is completed by means of restoring force generated by compressive deformation of the self-centering prestress system during loading. The present invention does not require finish machining of members with a low manufacturing cost and stable and reliable performance. The problems of high-level prestress requirements and limited deformation capacity in self-centering energy-dissipating devices are solved, and fully self-centering of the device can be achieved only by applying a small amount of prestress. The energy-dissipation element of the device is arranged on the periphery and can be replaced after an earthquake without disassembling the whole device and the device can be replaced, thereby facilitating rapid repair of the device.

A dual rate spring system is disclosed. The dual rate spring system can include a first spring and a spring coupler that have different spring rates. The dual rate spring system can include a two piece crossover ring, a two piece spring coupler, or both. The two piece crossover ring can include a first damper. The two piece spring coupler can include a second damper. The first and second damper can reduce a noise or harshness of jolt associated with a transition from the first spring to the second spring.

The present invention provides a liquid rubber composite node for reducing vehicle wheel-rail wear and vibration noise based on liquid damping, comprising a mandrel with a mandrel ball in a middle, rubber layers vulcanized and bonded around the mandrel ball, and an inner sleeve vulcanized and bonded with the rubber layer at a periphery of the rubber layers; a front cavity and a rear cavity with rubber layers at cavity bottoms are arranged in the inner sleeve on a front side and a rear side of the liquid composite node respectively; the mandrel ball is provided with a flow channel for communicating the front cavity and the rear cavity; the front cavity and the rear cavity are flat, the axial widths of the axial sections of the two cavities are greater than radial heights, and the front cavity, the rear cavity and the flow channel are filled with liquid. The present invention can achieve the variable stiffness characteristic of low static stiffness and high dynamic stiffness of a single stage suspension, promote the upgrade of vibration and noise reduction level technologies in the railway transit industry, and help the safe, high-speed, green and intelligent development of railway transit.

The present invention discloses an auxiliary spring that compensates for the height decrease due to the creep of a rubber body in a mechanical transmission manner, which includes a rigid core shaft, a rubber body vulcanized and bonded to the outer periphery of the core shaft, a metal outer sleeve vulcanized and bonded to the outer periphery of the rubber body, and a support plate horizontally installed on the top of the metal outer sleeve. A height lifting device is provided between the core shaft and the base. The lifting device includes a frame base, a lifting mechanism installed on the frame base, a torsion transmission mechanism, and a pressure storage mechanism. When the rubber body has crept and dropped to a set height, the carriage is in a heavy load condition, and the auxiliary spring encounters a downward overload impact, the support plate sinks and presses down the pressure storage mechanism, and the pressure storage mechanism temporarily stores the pressure. When the downward overload impact is released or the carriage heavy load is released, the pressure stored in the pressure storage mechanism causes the lifting mechanism to lift the auxiliary spring upward through the torsion transmission mechanism, thereby realizing the compensation for the decreased height of the auxiliary spring.

Disclosed is a rotational spring dampener having a core, a first housing element, a second housing element, and a tensile member. The core includes an opening therethrough and a first plurality of bosses. The first housing element comprising a second plurality of bosses, while the second housing element comprising a third plurality of bosses. The first housing element and the second housing element form a housing assembly having a cavity therein, where the core is configured to pivot relative to the housing assembly. The tensile member is positioned within the cavity to dampen movement of the core relative to the housing assembly. The tensile member is connected to the core via the first plurality of bosses and to the first housing element via the second plurality of bosses. The tensile member is or comprises a solid silicon polymer. Each of the second plurality of bosses can define a cavity configured to receive one of a third plurality of bosses formed on the second housing element to define a press-fit assembly. The housing assembly can include an alignment groove to serve as a poka-yoke. The first housing element and the second housing element can be coupled to one another to form the housing assembly via one or more snap assemblies.

A hydraulic mount capable of damping both an up-down vibration and a front-rear vibration of a motor module includes an internal pipe; a main rubber formed on an external circumferential surface of the internal pipe, and provided with a plurality of liquid chambers in which fluid is sealed; an orifice unit mounted to an external circumferential surface of the main rubber to cover the plurality of liquid chambers; and an external pipe surrounding and mounted on the orifice unit, and the orifice unit includes a first flow path connecting an upper liquid chamber and a lower liquid chamber among the plurality of liquid chambers provided in the main rubber in a fluidable manner; and a second flow path connecting a front liquid chamber and a rear liquid chamber among the plurality of liquid chambers provided in the main rubber in a fluidable manner.

The utility model relates to the technical field of maintenance of energy-absorbing damping rods, and discloses an energy-absorbing damping rod which comprises a shell, the bottom of the shell is connected with the top of a rod body in a sleeved mode, a base is welded to the bottom of the rod body, a piston rod is arranged in the middle of the shell, a sealing valve is installed at the bottom of the piston rod, and a spring is arranged at the bottom of the shell. The bottom of the spring is connected with the base, a compression compensation mechanism is installed on the inner side of the bottom of the rod body, and a movable oil injection opening is formed in the middle of the rod body in an embedded mode. The movable oil injection port comprises an oil injection port, and the upper side and the lower side of the oil injection port are fixedly connected with sliding blocks. According to the energy-absorbing and shock-absorbing rod, convenience of maintenance can be achieved through the movable oil injection port, the process of replacing hydraulic oil is simpler and quicker through the improved design of the movable oil injection port, the workload of maintenance and maintenance can be reduced, a vehicle owner or a technician can replace the hydraulic oil more timely, and the good performance of a shock absorber is kept.

A hinge device includes a shaft that is pivotally supported by a bearing portion and is rotatable, a first torque application unit configured to apply a frictional force to a peripheral surface of the shaft by fitting the shaft to the first torque application unit, and a second torque application unit configured to apply a frictional force to the shaft in an axial direction. The second torque application unit includes a flange that is formed on the shaft and abuts onto one end of the bearing portion, and a nut that is screwed to a male screw portion of the shaft and is tightened to the other end of the bearing portion via washers and a disc.

The invention discloses a linear motor shock absorber, belongs to the field of vehicle shock absorbers, and aims at improving the shock absorption performance adjusting capacity. Comprising an upper connecting structure, a spring, an oil storage barrel, a working cylinder and a piston rod, the bottom end of the working cylinder is connected with a compression valve, the working cylinder and the compression valve are arranged in the oil storage barrel, a sliding pair is formed between the piston in the working cylinder and the working cylinder in the axial direction of the working cylinder, the top end of the piston rod is connected to the upper connecting structure, and the bottom end is inserted into the working cylinder and connected to the piston; the spring is telescopically arranged in the vertical direction and is connected between the upper connecting structure and the oil storage barrel; the device is characterized in that the outer wall of the oil storage cylinder is connected with a permanent magnet; the periphery of the oil storage cylinder is sleeved with a motor shell, and a motor coil is arranged on the inner wall of the motor shell; and the motor shell is movably matched with the motor shell along the vertical direction. According to the novel linear motor shock absorber, the linear motor is integrated on a traditional shock absorber, the brand-new linear motor shock absorber is formed, the driving stability and comfort can be improved, and the linear motor shock absorber can achieve rapid and accurate control over a vehicle suspension system.

The invention discloses a damping-controllable low-impact inerter vibration reduction device and a control method, the damping-controllable low-impact inerter vibration reduction device comprises a low-impact inerter, a shell, a ball screw device and a controllable electromagnetic damper, the sudden change working condition of instantaneous reversing of a traditional inerter often induces obvious impact, and then the vibration reduction performance is deteriorated. Therefore, the invention provides the double-flywheel inerter structure with different rotating directions, and the double flywheels work independently, so that the problem that large impact is generated due to sudden change of reversing is effectively solved. Besides, the controllable electromagnetic damper and the low-impact inerter are integrally designed, the inerter overcomes the defect that the damper cannot change the inherent frequency of a system and can provide large inerter, a control method is provided, the controllable electromagnetic damper can be adjusted to output expected electromagnetic damping force according to the needed ideal torque, and the electromagnetic damping force can be adjusted to be larger than that of the low-impact inerter. Therefore, the vibration damping device can obtain more excellent vibration damping performance.

The present invention discloses a novel combined vibration damping device with adjustable stiffness and damping, which relates to the technical field of vibration damping; it includes a magneto-resistive stress negative stiffness spring located inside the housing and a piezoelectric friction assembly located inside the bearing seat; a central shaft is connected between the two, and a metal helical spring is sleeved outside the central shaft. The bottom of the metal helical spring is connected to a spring base located at the top of the housing, and the top of the metal helical spring is connected to the bottom of the bearing seat; the central shaft is fixedly connected to the top inside the housing through a metal cross leaf spring. The magneto-resistive stress negative stiffness spring and the metal cross leaf spring can be connected in parallel to achieve the adjustment of quasi-zero stiffness, and the piezoelectric friction assembly can achieve the adjustment of damping; a load platform is fixedly arranged at the top of the bearing seat. The present invention has non-linear frequency-varying characteristics of high static stiffness - low dynamic stiffness, large low-frequency damping - small high-frequency damping, and can well solve the contradiction between the bearing capacity and the vibration damping frequency band, as well as the contradiction between high-frequency and low-frequency vibration attenuation, and achieve high-performance vibration damping.

A hydro engine mount for a vehicle may include a locking body including a plurality of locking portions; a body plate including a plurality of fastening grooves configured to be fastened to the plurality of locking portions, wherein a main rubber is mounted in the body plate; and a diaphragm stacked between the main rubber and the locking body.