164 results about "Viscous damper" patented technology

The invention discloses a wall type Z-shaped metal torsion tube damper anti-seismic system and method. The wall type Z-shaped metal torsion tube damper anti-seismic system comprises a frame beam, a frame column, a cantilever wall and a Z-shaped metal torsion tube damper. The frame beams and the frame columns are connected with a building, the cantilever walls are connected with the frame beams, and the Z-shaped metal torsion tube dampers are arranged between the paired cantilever walls and connected with the cantilever walls so as to dissipate energy transmitted by the cantilever walls. According to the damper anti-seismic system, the Z-shaped metal torsion tube damper is arranged to replace a traditional mild steel metal damper and a viscous damper to conduct damping design of a building structure, the problem that the low-cycle fatigue performance of the traditional metal damper is poor is solved, the oil leakage risk of the viscous damper is avoided, and the anti-seismic performance of the building structure is improved. Moreover, due to the structural design in the damper, the influence of the bending and shearing effect on the deformation of the torsion tube under the action of an axial load is eliminated, so that the section of the torsion tube is always kept a stable circular section in the hysteresis energy consumption period of the torsion tube, and the energy consumption efficiency is ensured.

The invention discloses a replaceable energy dissipation type prestress assembly type beam-column joint and a construction method thereof. The replaceable energy dissipation type prestress assembly type beam-column joint comprises a prefabricated column, a prefabricated beam, an angle steel connecting piece, a viscous damper, FRP cloth and a prestress tensioning piece. The FRP cloth is pasted to the joint of the prefabricated beam and the prefabricated column, angle steel connecting pieces fixed to the prefabricated beam and the prefabricated column are arranged on the outer side of the FRP cloth, and the two angle steel connecting pieces on the upper side are provided with viscous dampers arranged in the inclined direction. The prestressed tensioning part is of a downwards-protruding arc-shaped structure, a first hole channel and a second hole channel which are matched with the prestressed tensioning part are formed in the prefabricated beam and the prefabricated column respectively, anchoring blocks are arranged at the positions, corresponding to the first hole channel, of the upper end face of the prefabricated beam, the prestressed tensioning part is arranged in the hole channels in a penetrating mode, and the two ends of the prestressed tensioning part are anchored to the corresponding anchoring blocks respectively. The FRP cloth is adopted to enhance the integrity and durability of the joint, the downwards-protruding prestress tensioning piece can resist the sagging moment of the joint and cooperates with the viscous damper to efficiently dissipate energy, and rapid repairing is achieved by replacing the energy dissipation connecting piece.

The utility model provides a kind of viscous damper mounting structure, including first mounting beam and second mounting beam, the first mounting beam is equipped with accommodating space, the inboard of accommodating space is equipped with viscous damper, the upper of second mounting beam is provided with first embedded part, the bottom of first embedded part is fixedly installed with fixed frame.The utility model is through the setting of first connecting rod, mounting sleeve, second connecting plate and connecting mechanism, when using, the cylinder barrel of viscous damper and fixed frame branch can be movably connected, the movable connection of both can also realize the movable connection of cylinder barrel of viscous damper and mounting beam, allow cylinder barrel to be multi-directional displacement with building structure in earthquake and not be restrained, while avoiding that cylinder barrel bears too large bending moment and torque, reduce the problem that cylinder barrel appears deformation or damage, to effectively guarantee the performance and durability of viscous damper.

This utility model discloses an anti-loosening fastening device for tractor units, belonging to the field of tractor unit technology. The anti-loosening fastening device includes a front connecting plate and a rear connecting plate. A movable combined arm is installed at the rear end of an adjusting frame, and a viscous damper is installed between the two movable combined arms. Hydraulic dampers are installed between the front and rear connecting plates and the adjusting frame. This utility model solves the problem that existing tractor unit fastening devices become loose due to vehicle vibrations, failing to maintain a stable working state. By connecting the hydraulic damper and the viscous damper, this utility model achieves a good connection between the front and rear connecting plates. During tractor turning, the front and rear connecting plates are subjected to tension and traction forces, causing movement. During this movement, the hydraulic damper and the viscous damper limit movement and reduce vibration, effectively achieving an anti-loosening effect.

The utility model relates to the technical field of dampers, and discloses a viscous damper which comprises bases, the tops of the two bases are fixedly connected with a supporting plate, a limiting mechanism is arranged in the supporting plate, the adjacent side of the outer portion of the limiting mechanism is rotationally connected with a damping body, the tops of the bases are provided with cleaning mechanisms, and the cleaning mechanisms are arranged on the bases. And the cleaning mechanism comprises two supporting blocks, connecting blocks are fixedly connected to the exteriors of the two reset springs, sliding rings are fixedly connected to the adjacent sides of the exteriors of the two connecting blocks, and cleaning brushes are fixedly connected to the interiors of the sliding rings. When the damping body is not used, dust and impurities are prone to being accumulated on the surface of the damping body, the performance of the damper is affected, at the moment, movement of the damping body drives the sliding ring and the cleaning brush to move synchronously, the cleaning brush is tightly attached to the surface of the damping body, the cleaning efficiency is improved through the design, and the stability and reliability of the damper are enhanced; and long-term high-efficiency operation is ensured.

The utility model discloses a shockproof damping device for a bridge, and relates to the technical field of bridge damping. The damping device comprises two mounting plates, a mounting seat is fixedly connected between the two mounting plates, a viscous damper is movably connected to the inner side of the mounting seat through a rotating shaft, and a damping support is fixedly connected to one side of each mounting plate; a main buffering assembly is arranged on one side of the mounting plate and comprises a supporting ring fixedly connected to one side of the damping support. Through the coupling effect of the friction dampers of the main buffering assembly and the first springs, dual energy consumption of coulomb friction and elastic deformation is generated in the initial vibration stage, the peak acceleration is effectively reduced, the eight friction dampers distributed at equal angles form an annular buffering array, omni-directional dissipation of horizontal vibration in any direction is achieved, and the vibration damping effect is improved. The three-dimensional supporting structure of the damping support is matched, and the stress concentration phenomenon of a traditional one-way damper is eliminated.

The utility model provides an integrated viscous damper mounting device, which belongs to the technical field of building damping equipment and comprises a viscous damper, connecting devices are arranged at the left end and the right end of the viscous damper, the connecting devices are fixedly connected with the viscous damper, and the connecting devices are fixedly connected with the viscous damper. The sides, away from the viscous dampers, of the connecting devices are fixedly connected with embedded parts, and prefabricated frames are arranged on the outer sides of the connecting devices. According to the integrated viscous damper installation device, the problem that when a viscous damper is constructed, the positioning and paying-off precision cannot be guaranteed is solved, the problem that the viscous damper is assembled in the middle of a cantilever wall in the later period is solved through early-stage assembly and installation, and compared with a traditional installation mode, the device is assembled in advance and installed at a time, and the installation efficiency is greatly improved. The tedious steps of sequential assembly in the later period are omitted, the prefabricated frame is directly placed in the middle of the viscous damper wall, secondary positioning and paying-off on the viscous damper wall are omitted, manpower and material resources are greatly saved, and the construction efficiency is improved.

The utility model relates to damper support technical field discloses a viscous damper support structure for public building shock absorption, including sliding frame, the inside sliding connection of sliding frame has sliding block no.

The utility model relates to the technical field of shock resistance, and discloses a prestress viscous damper which comprises a cylinder body, a first piston is connected inside the cylinder body in a sliding mode, a guide rod is fixedly connected inside the first piston, a second piston is fixedly connected outside the guide rod, and a fixing ring is fixedly connected outside the guide rod. The left sides of the fixing rings are fixedly connected with supporting rods, the supporting rods are sleeved with telescopic springs, the left sides of the multiple supporting rods are fixedly connected with moving rings, the multiple supporting rods are slidably connected with supporting rings, the outer portion of the cylinder body is fixedly connected with a cooling assembly, and the cooling assembly comprises a hollow ring. An inner cavity is formed in the hollow ring, and a heat conduction plate is fixedly connected to the outer portion of the hollow ring. According to the viscous damper, the prestress of the viscous damper is improved, then the displacement response of the structure is effectively restrained, and the risks of cracking of a building wall and damage to beam-column joints are greatly reduced.

The present application provides an anti-seismic explosion-proof type pry dress refueling device, including a refueling machine, an oil unloading pump and a barrier explosion-proof double-layer oil storage tank, the refueling machine and the oil unloading pump are arranged at one end of the inside of the anti-seismic frame, the outside of the barrier explosion-proof double-layer oil storage tank is arranged in the inside of the anti-seismic frame through a plurality of oil tank anti-seismic units, the bottom surface of the anti-seismic frame is arranged on the top surface of the shock isolation base, the bottom surface of the shock isolation base is arranged on the top surface of the main base in the middle, the outside of the shock isolation base and the top surface of the main base are provided with a protective weir, a plurality of lead core rubber shock isolation supports in the shock isolation base are deformed to isolate a large amount of seismic energy, only a small part of the seismic energy is transmitted to the anti-seismic frame; the remaining seismic energy on the anti-seismic frame is absorbed by the viscous damper in the frame anti-seismic unit; when the anti-seismic frame shakes, the plurality of oil tank anti-seismic units reduce the shaking of the barrier explosion-proof double-layer oil storage tank, thereby further reducing the risk of tank explosion.

The utility model discloses a pore type viscous damper which comprises a cylinder barrel, sealing end covers, pistons and a piston rod, the sealing end covers and the pistons are arranged at the two ends of the cylinder barrel, the piston rod is installed in the cylinder barrel and penetrates through the two sealing end covers and the pistons, and the pistons comprise three sub-pistons which are the first piston, the second piston and the third piston. The piston divides the cylinder barrel filled with the damping liquid into a first cavity and a second cavity, a damping hole extension pipe is arranged between the first piston and the second piston, the third piston is arranged between the first piston and the second piston, the damping hole extension pipe penetrates through the third piston, and the third piston is fixedly connected with the damping hole extension pipe. The length of the damping hole can be effectively increased, the length of the damping hole can be self-adaptively adjusted, and the damper is prevented from being damaged.

The present application relates to building energy dissipation and shock absorption technical field, disclose a kind of based on optimal additional damping ratio viscous damper parameter design method, including the following steps: the first-order natural frequency of non-damping structure is calculated;The vertex displacement amplitude of structure under the action of frequently occurring earthquake is calculated;The inter-story displacement amplitude of the i floor of structure arranged with damper and the corresponding inter-story displacement amplitude average are calculated;The first-order equivalent modal stiffness of viscous damper connecting component is calculated;The traversal numerical solution of damper damping index is calculated;The value of damping coefficient when additional damping ratio obtains maximum is calculated and so on step.The present application can calculate the specific value of viscous damper damping coefficient and damping index when additional damping ratio obtains maximum according to the basic parameter of structure, and the corresponding maximum value of additional damping ratio is calculated, and it has important significance to damage control and optimization design of damper parameter of viscous damper shock absorption structure under the action of earthquake.

The utility model discloses a turbo type viscous damper, which relates to the technical field of building construction, and comprises an oil cylinder structure and turbo type piston structures, a piston rod is horizontally arranged in the oil cylinder structure, and the turbo type piston structures are arranged at one end of the piston rod and are provided with two groups. According to the turbo type viscous damper, two sets of turbo type piston structures are installed at one end of the piston rod, the structural arrangement of two sets of turbine blades is utilized, and a sealing ring is installed on the surface of a supporting ring in a matched mode; while the high-damping bearing provides axial rotation activity for the whole turbo type piston structure, sufficient structural viscous damping performance can be provided for the whole device through cooperative use of the structures, and interference protection of damping buffering can be further provided for the whole device through structural arrangement of the pressure accumulation structure and the control valve; and the stability and the service life of the device are ensured.

The utility model relates to the technical field of steel structures, and discloses a production base steel structure anti-seismic structure which comprises a plurality of steel columns and steel beams, each steel beam is connected and installed between every two adjacent steel columns, and viscous dampers are installed between every two transverse steel columns and the two ends of each steel beam. A supporting assembly is installed between every two transverse steel columns close to the top ends, a connecting assembly is installed between every two longitudinal steel columns, each supporting assembly comprises a shed frame and two fixing cylinders, and the two fixing cylinders are fixedly installed at the positions, close to the two ends, of the tops of steel beams respectively. Through the clamping seats and the fixing cylinders, rapid installation and fixation of the shed frame are facilitated, outward force can be provided for the steel beams, pressure in the middles of the steel beams is reduced, and the inner sides and the outer sides of the steel columns are evenly stressed; and through the connection of the steel core and the supporting legs, the connection and anti-seismic performance of the steel column is improved, and the fixation between the two longitudinal steel columns is enhanced.

This invention belongs to the field of vibration control technology and discloses a viscous damper for controlling vertical vibration. The viscous damper adopts a double-cylinder, unsealed structure. The two cylinders are connected by a connecting rod hole in the middle of the cylinder partition. One end of the connecting rod is rigidly connected to a piston inside the second cylinder, and the other end passes through the cylinder partition and the top plate of the first cylinder before connecting to a structure. The bottom of the second cylinder is connected to another structure. When the two structures generate a vertical relative velocity, the connecting rod drives the piston to move in the damping fluid of the second cylinder, generating viscous resistance and suppressing the relative motion of the two structures. This invention does not require strict sealing, has a simple structure, low manufacturing cost, and better durability. The damping coefficient can be dynamically adjusted as needed by the comb teeth or the gradually changing inner cavity of the cylinder, resulting in higher efficiency compared to traditional dampers. This invention can effectively control the vertical or slightly inclined relative motion between various large structures such as bridges, cables, building internal structures, and marine engineering projects caused by various dynamic loads.

A nuclear reactor must be designed and constructed to withstand seismic events. A modular integrated reactor support structure includes seismic isolators that rely on viscous dampers and elastic support assemblies to provide three-dimensional seismic isolation to the reactor head, reactor vessel and reactor internal components. The gravitational load of the reactor head, reactor vessel, and reactor internals is supported through the reactor head, which transfers the load to a plurality of seismic isolators, which in turn, transfer the load to the basemat of the reactor building. A plurality of reactor support assembly blocks couple the reactor head to the seismic isolators while permitting thermal expansion and contraction of the reactor head while limiting rotational motion.

The application discloses a wind resistance system for a whole steel platform climbing formwork, which comprises at least one set of damping mechanisms supported on each face outer wall of a building structure and connected to the whole steel platform climbing formwork, each set of the damping mechanisms sequentially comprises a wall guide roller supported on the corresponding face outer wall of the building structure in sliding contact, a viscous damper with a force sensor and a limiting support, and the limiting support is fixedly arranged on the whole steel platform climbing formwork. The application can prevent the whole steel platform climbing formwork from being separated from the building structure under the action of wind load, avoid the safety hidden danger of overturning risk, and increase the safety and adaptability of the whole steel platform climbing formwork of the super high-rise building in the wind environment.

The utility model discloses an overload protection viscous damper for building shock absorption, including cylinder body, the end cover of the bolted installation of cylinder body one end opening position department, the piston rod of the sliding installation in the end cover inside and the front piston of fixed mounting of piston rod surface two ends respectively, the rear piston, the bushing of the cylinder body inside between the front piston, rear piston is integrally formed, the front medium cavity, rear medium cavity are provided with respectively in the cylinder body of the side of the front piston, rear piston far from each other, the utility model discloses respectively fixed a front piston, rear piston on the piston rod outer peripheral surface of bushing left and right sides, make the front piston, rear piston form the front medium cavity, rear medium cavity respectively in the damper cylinder body, and install the elastic protector for overload protection in rear medium cavity, thereby form the viscous damper of front and rear double cavity.

The utility model relates to a work fixture suitable for JWZ-1 viscous damper, which comprises a base, a vertical fixing bolt, a horizontal fixing bolt and a connecting column, the base is vertically provided with a fixing block, the fixing block is in threaded connection with the horizontal fixing bolt, the horizontal fixing bolt is used for being matched with the fixing block to fix the inclined opening end of the damper, and the connecting column is connected with the vertical fixing bolt. The base is in threaded connection with a connecting column, the top of the connecting column is in threaded connection with a vertical fixing bolt, the side, facing the horizontal fixing bolt, of the fixing block is an inclined face from top to bottom, the inclined face is matched with the end face of the damper in shape, and a first limiting groove is formed in the inclined face. The height of the upper end of the connecting column can be adjusted by adjusting the length of the threaded connection portion of the lower end of the connecting column and the base, and then the installation height of the inclined opening end of the damper is adjusted. And the convenience of fixing the damper is greatly improved.

The utility model relates to the technical field of damping instruments, and discloses a self-cooling viscous damper which comprises a damping shell, one end of the outer portion of the damping shell is fixedly connected with a supporting end, the other end of the damping shell is fixedly connected with a sliding end, and a sliding rod is slidably connected into the sliding end. One end of the sliding rod is fixedly connected with the damping shell, the other end of the sliding rod is fixedly connected with a connecting end, a partition mechanism is arranged outside the connecting end, a cooling mechanism is arranged outside the damping shell and comprises a protective shell, the interior of the protective shell is fixedly connected to the exterior of the damping shell, and a plurality of air holes are formed in the exterior of the protective shell. According to the cooling device, the circulating pipe is connected with the cooling fins, the cooling liquid is driven to flow to the cooling fins through the circulating pipe, the effect of rapidly dissipating heat in the cooling liquid is achieved through rotation of the fan, the cooling efficiency is improved, and the cooling effect on the damper is guaranteed.

The present application belongs to the technical field of shock absorption, and particularly relates to a real-time testing device for damping force of a viscous damper and a testing method thereof; a sensor mounting hole is formed at each end cover of the viscous damper body, a through hole is formed at the cylinder end of the viscous damper body, a pressure sensor is embedded in the sensor mounting hole, a signal transmission line of the pressure sensor passes through the through hole and is connected to a data acquisition circuit, and the data acquisition circuit is connected to a computer terminal through the cloud; a calibration relationship equation is constructed by the pressure difference measured by the pressure sensors installed at both ends of the viscous damper and the damping force of the viscous damper, and the damping force of the viscous damper is calculated, which has a good linear relationship and can realize stable and accurate measurement. The pressure sensor implanted at the end cover of the viscous damper eliminates the influence of bad weather and unexpected conditions on the testing device, and realizes real-time monitoring of the damping force of the viscous damper.

A nuclear reactor must be designed and constructed to withstand seismic events. A modular integrated reactor support structure includes seismic isolators that rely on viscous dampers and elastic support assemblies to provide three-dimensional seismic isolation to the reactor head, reactor vessel and reactor internal components. The gravitational load of the reactor head, reactor vessel, and reactor internals is supported through the reactor head, which transfers the load to a plurality of seismic isolators, which in turn, transfer the load to the basemat of the reactor building. A plurality of reactor support assembly blocks couple the reactor head to the seismic isolators while permitting thermal expansion and contraction of the reactor head while limiting rotational motion.

The utility model discloses a viscous damper simultaneously satisfying bearing and large displacement, which comprises an upper connecting plate connected with a pipe clamp accessory and a lower connecting plate arranged opposite to the upper connecting plate, the lower part of the upper connecting plate is fixedly connected with an upper shell, the upper part of the lower connecting plate is fixedly connected with a lower shell, a sealing sleeve is connected between the upper shell and the lower shell, and the sealing sleeve is fixedly connected with the lower shell. Damping liquid is arranged in an inner cavity of the lower shell, a plunger extending into the damping liquid is fixedly arranged on the lower portion of the upper connecting plate, at least two lower lug handles which are oppositely arranged are arranged at the lower end of the plunger, and the lower lug handles are fixedly connected with tension springs which are obliquely arranged. According to the viscous damper, the requirement for large thermal displacement of a pipeline can be met while vibration reduction of the pipeline is achieved, the tension spring can have the stretching buffering effect on the plunger, the supporting effect and the vibration reduction effect are achieved, and the viscous damper can meet the requirement for large displacement when the pipeline vibrates while bearing the load of the pipeline; and the multifunctionality of the viscous damper is improved.

The present application relates to the technical field of viscous damper, and discloses a health monitoring system of viscous damper, wherein a data analysis module acquires time history data, displacement time history data and temperature field distribution data of the viscous damper, and calculates a reference damping characteristic index; an index determination module obtains a current damping force index according to a highest temperature value and a temperature gradient integral value; an index determination module reconstructs a damping force time history data curve and a piston rod displacement time history data curve, calculates a ratio of an actual annular area to a theoretical standard annular area, and obtains a hysteresis fullness index; a sealing analysis module monitors mass flow and cylinder inner cavity temperature field, and calculates sealing health degree; a health monitoring module calculates a comprehensive health score according to the current damping force index, the hysteresis fullness index and the sealing health degree, determines a health state grade, and realizes accurate monitoring and grading of the health state of the viscous damper through multi-source data such as damping force, displacement, temperature field and pressure, so as to improve safety and maintenance efficiency.

The application relates to a tuned mass damper device suitable for a slab-column joint, which is adjustable in mass / stiffness / damping and belongs to the technical field of structural vibration control. The device comprises a mass unit, a fixed-end component arranged at one end of the mass unit, a stiffness unit and a damping unit arranged between the mass unit and the fixed-end component; the tuned mass damper device further comprises a bottom plate connected with the fixed-end component, a slab-column joint connector and a slide rail system arranged between the bottom plate and the mass unit; the slab-column joint connector is connected with the bottom plate and arranged at the other end of the mass unit. The application can effectively solve the construction difficulty of the TMD system for the slab reconstruction and the problem that the mass of the TMD system easily generates a large additional bending moment at the column end, and can also solve the problem of working fluid of the traditional viscous damper. The application can be arranged at the tuned structural frequency of the slab-column joint of a structure to realize vibration control under wind-induced or human-induced response.

The utility model discloses a viscous damper with a friction energy dissipation function, which belongs to the field of shock absorption of building and bridge structures and comprises an oil cylinder, one end of the oil cylinder is in threaded connection with a base, the other end of the oil cylinder is in threaded connection with a connecting pipe, and a piston rod is arranged on one face, facing the oil cylinder, of the base. A first piston is arranged on the piston rod outside the oil cylinder; a second piston is arranged at one end of the piston rod inside the connecting pipe; according to the viscous damper with the friction energy dissipation function, a novel friction material-ceramic fiber material is adopted, the material is resistant to high temperature and low temperature, stable in physical and chemical performance and high in durability, the friction coefficient is not reduced under reciprocating friction, a novel sealing material-polytetrafluoroethylene is adopted, the material is resistant to high temperature and low temperature, stable in physical and chemical performance, high in durability and low in friction coefficient, and the sealing performance is good. Under reciprocating friction of the piston rod, the sealing performance is not reduced, and the service life of the product is long and can be the same as that of a building structure.

The invention relates to a composite viscous damper integrated with a buckling restrained energy dissipation system. The composite viscous damper comprises a core rod capable of deforming and buckling; the first connecting plate and the second connecting plate are fixedly arranged at the two ends of the core rod respectively and are configured to be connected with an external building structure; the restraining sleeve is fixedly connected with the first connecting plate and wraps the core rod, and a gap exists between the core rod and the restraining sleeve; the damping unit comprises a damper shell and a piston, the damper shell is provided with a damping chamber formed by a sealed cavity, the piston is arranged in the damping chamber, the restraining sleeve penetrates through the damping chamber, the piston is fixed to the restraining sleeve, the damping chamber is filled with Newtonian liquid, and the damper shell is further fixedly connected with the core rod. Compared with the prior art, the advantages of viscous energy dissipation and buckling restrained energy dissipation can be exerted at the same time, the energy dissipation capacity of the damper is improved, the production cost is reduced, and the energy dissipation requirements at different deformation speeds can be met.

The utility model provides a viscous damper with an explosion-proof cavity, which relates to the field of viscous dampers and comprises a cylinder body, a piston is movably mounted on the inner wall of the cylinder body, damping holes are equidistantly formed in the circumference of the surface of the piston, a hose is fixedly mounted on the surface of the cylinder body, and a fixing frame is fixedly mounted on the surface of the cylinder body. A round rod is movably embedded in the inner wall of the fixing frame, a round block is fixedly installed at one end of the round rod, a spring is movably arranged on the surface of the round rod in a sleeving mode, an extrusion piece is fixedly installed at the other end of the round rod, and the other side of the extrusion piece is attached to the surface of the hose. When the damping cylinder is strongly impacted, a damping medium in the cylinder body enters the hose, so that the hose which is extruded and closed by the extrusion sheet is opened, damping value flows into the other cavity, the pressure is released, the risk of cavity explosion is reduced, the corrugated pipe is arranged on the surface of the guide rod in a sleeving manner, the extending part of the guide rod is protected, and the influence of the environment is reduced.

The application discloses a self-locking hydraulic elastic damper, which comprises a locking part, a left ear part, an outer sleeve, a damping part, an elastic part, a tail cylinder and a right ear part; the left ear part is hinged to the locking part; the damping part comprises a cylinder body and a piston rod which is inserted into the cylinder body; the outer sleeve is sleeved on the damping part, and the outer sleeve is coaxially arranged with the piston rod; the elastic part is connected with the cylinder body, and the piston rod is movably inserted into the elastic part; the tail cylinder is connected with the elastic part; and the right ear part is connected with the auxiliary cylinder body; the self-locking hydraulic elastic damper can avoid excessive wear of the damping part under non-seismic conditions, prolong the service life of the damper, and can be widely applied to various anti-seismic structure fields under the premise of guaranteeing the original shock insulation function of the viscous damper.

The invention relates to the field of tower vibration reduction, in particular to a multi-viscous damper coupling mass block vibration reduction device suitable for a wind power tower, which comprises a mass block, two groups of viscous dampers distributed above and below the mass block and two annular mounting frames, the annular mounting frames are connected with the inner wall of the tower, and the mass block is connected with the annular mounting frames through the viscous dampers; each group of viscous dampers comprises N viscous dampers, the N viscous dampers are uniformly distributed in the circumferential direction of the mass block and are annularly and symmetrically distributed around the central axis of the mass block, and the circumferential interval angle between connecting lines of the axes of the adjacent viscous dampers and the center of the mass block is 360 degrees / N. By the adoption of the technical scheme, the multi-direction damping effect of the wind power tower can be achieved.