400 results about "Vibration damper" patented technology

An optical system (200) comprising a component (202), a support structure (204) for supporting the component (202), a vibration decoupling unit (206) for decoupling the component (202) from a vibration of the support structure (204), wherein the vibration decoupling unit (206) comprises a first spring element (208) connected to the component (202), a second spring element (210) connected to the support structure (204), and an intermediate mass (212) connected to the first spring element (208) and the second spring element (210), wherein a vibration damper (214) is connected in parallel to the first spring element (208) with the intermediate mass (212) and the component (202), or wherein a vibration damper (214) is connected in parallel to the second spring element (210) with the intermediate mass (212) and the support structure (204). is.

A vibration damper for a vehicle comprises a damper tube filled with hydraulic fluid, a working piston which is connected to a piston rod and arranged within the damper tube so as to be movable back and forth, wherein the interior of the damper tube is divided by the working piston into a first working chamber and a second working chamber, a closure assembly which fluid-tightly closes off the damper tube at the piston rod side, a rebound stop arrangement having a rebound stop piston, which is mounted on the piston rod, and a rebound stop sleeve for receiving the rebound stop piston in the rebound stage, wherein the rebound stop piston separates off a rebound stage working chamber within the rebound stop sleeve, and wherein the rebound stop piston has a bypass channel for fluidically connecting the piston-rod-side working chamber to the rebound stage working chamber, wherein a valve device is arranged in the rebound stop piston hydraulically in parallel to the bypass channel.

The invention belongs to the technical field of wire maintenance, and discloses a fixing device for preventing a stockbridge damper from shifting and an unmanned aerial vehicle installation system.The fixing device comprises a clamping assembly, a locking assembly, a hanging and triggering assembly and a hanging frame; the clamping assembly comprises an arc-shaped clamping block connected to the hanging frame in a sliding mode and a lead screw rotationally connected to the hanging frame, a nut is fixedly installed in a center hole of the arc-shaped clamping block, the nut is matched with an external thread of the lead screw, and the arc-shaped clamping block is driven to be close to or away from the hanging frame by rotating the lead screw; through the synergistic effect of the clamping assembly, the locking assembly and the hooking and triggering assembly, full-process automation of the device from carrying, positioning, triggering to final locking is achieved. After the unmanned aerial vehicle transports the device to a designated position, the locking assembly can be triggered to be released through a remote instruction, then the clamping assembly is driven to automatically and firmly hold the wire, and a lead screw nut mechanism of the device has the inherent self-locking characteristic and can effectively resist long-term vibration.

This invention belongs to the field of vibration reduction technology for nuclear power plant fans, specifically relating to a high-damping integrated vibration reduction foundation suitable for nuclear power fan fans. It consists of a steel frame connected to a height-adjustable vibration damper. The steel frame is welded from high-damping composite channel steel, which is composed of conventional channel steel and particulate dampers. The height-adjustable vibration damper uses the housing as the installation reference. An upper annular metal rubber is inserted into its inner cavity, followed by the upper end of the mandrel being inserted into the inner hole of the upper annular metal rubber. Then, a lower annular metal rubber is inserted into the inner cavity of the housing, with its upper end face against the mandrel. A base is then placed on top, and rivets are used to connect the base and housing through four mounting holes. Finally, the internal thread of the mounting block is screwed into the external thread at the upper end of the mandrel. This invention effectively reduces the vibration level of the fan, ensuring safe operation of the fan.

This invention discloses a multifunctional construction platform for concrete towers of wind turbines, comprising a support beam (3), a platform body (4), fixed connectors (61), vibration damping connectors (62), and vibration dampers (7). The support beam is a grid structure composed of several beams connected together, with several connection ends formed at the edges of the support beam. One end of each fixed connector is connected to a connection end, and one end of each vibration damping connector is connected to a connection end via a vibration damper. Fixed connectors and vibration damping connectors are arranged at both ends of each beam. The other ends of the fixed connectors and the other ends of the vibration damping connectors are installed on the wall of the concrete tower (1). The platform body is installed on the support beam, so that the platform body is horizontally erected inside the concrete tower. This invention can reduce the vibration impact of wind turbine operation on the concrete tower, and also ensures the balance and stability of the construction platform, improving the safety of the concrete tower and the construction platform.

The invention relates to a mobile laser scanning microscope (100) comprising: a chassis (10) with rollers (12), an optical table (30) connected to the chassis (10) via a vibration damper (20), an upper optical box (40) containing a scanning head (42) with acousto-optical deflectors, a pillar (60) connecting the upper optical box (40) to the optical table (30) and holding it at a distance above therefrom, a stage (31) arranged on the optical table (30), a microscope module (32) arranged above the stage (31) and comprising a microscope objective (33) optically coupled to the scanning head (42) and at least one detector (75a, 75b), at least one laser (35) arranged on the optical table (30), an optical beam path (36) guiding a beam of the at least one laser (35) from the at least one laser (35) through the upper optical box (40) to the objective (33), compartments (17) connected to the chassis (10) below the optical table (30) and housing power supplies (15) and control systems (16) of the microscope (100), and a light barrier system (50) having a cover (52) covering units arranged on the optical table (30).

The invention relates to the technical field of damping structures, and discloses a shape memory polymer filled multistable negative Poisson's ratio structure damper which comprises a plurality of multistable structure shells which are of a bilateral symmetry structure and made of negative Poisson's ratio materials, cavities are defined in the multistable structure shells, and the multistable structure shells are arranged in an array mode; the shape memory polymer is arranged in the cavity, and the shape memory polymer is made of a shape memory negative Poisson's ratio polymer. The cavity is formed in the multi-stable-state structure shell, the cavity is filled with the shape memory polymer made of the shape memory negative Poisson's ratio polymer, the overall strength and rigidity of the structure can be improved while the negative Poisson's ratio characteristic is kept, and therefore the application range of the negative Poisson's ratio material in the vibration reduction field is expanded. The addition of the shape memory polymer is beneficial to improving the deformation capacity of the whole structure during bearing, and meanwhile, the structure can be recovered to the initial shape after being unloaded based on the recovery capacity of the shape memory polymer.

The present invention relates to a storage and recovery system (100) for bulk material (102). The system (100) includes a bulk material holding space (104) having a bottom (108) with a discharge port (106). The bottom (108) includes an inclined support plate (112) for supporting the bulk material (102) and for assisting gravity-induced feeding of the bulk material (102) toward the discharge port (106). The support plate (112) is supported by a support structure (114) in a free-floating manner. One or more vibrators (116) are connected to the support plate (112) and configured to transmit vibrational energy to the support plate (112) to induce vibrational motion of the support plate (112). An intermediate layer (122) having vibration-insulating properties is disposed between the support structure (114) and the support plate (112). The support structure (114) is damped to the main structure (150) by at least one structural vibration damper (126). An abutment vibration damper (130) is disposed between the support plate (112) and the support structure (114) and configured to prevent downward translation of the support plate (112) toward the discharge port (106). A vessel (200), onshore storage (300), and hopper (400) including the system (100) are also provided. Use of the system (100) for handling bulk material (102) is also provided.

The invention relates to a slide element (1) for a damper valve (10), wherein the slide element (1) has a control section (2) configured to extend displaceably in a control channel (11) of the damper valve (10) transversely to a flow direction (S) of a damping medium in order to adjust a flow cross-section of the damper valve (10), wherein the slide element (1) has a mounting section (3) arranged on a side of the slide element (1) opposite the control section (2), wherein the mounting section (3) can be attached to an actuating means (12) of the damper valve (10) for displacing the slide element (1) in a direction transverse to the flow direction (S), and wherein a connecting section (4) is formed between the control section (2) and the mounting section (3).which has a lower stiffness against deformation in the flow direction (S) than the control section (2) and the fastening section (3).

The invention relates to a torsional vibration damper (1) or a torsional vibration absorber comprising a rotating system having a primary mass arranged on a rotatable shaft, for example on an engine, in particular an internal combustion engine crankshaft, preferably non-rotatably fixed, and a secondary mass movable relative to the primary mass, and a component for vibration damping and / or vibration reduction of the relative movement between the primary mass and the secondary mass. The component for vibration damping and / or vibration reduction of the relative movement between the primary mass and the secondary mass has at least one pressure accumulator (15, 15'; 22, 22') within the rotating system of the torsional vibration damper (1) or the torsional vibration absorber. The invention also provides a method for damping torsional vibrations of an internal combustion engine crankshaft (2) with a torsional vibration damper (1) or a torsional vibration absorber.

This invention discloses an auxiliary flow channel type asymmetric magnetorheological vibration damper with large tension and small compression, comprising a cylinder, a working piston, a floating piston, and a guide assembly. The floating piston divides the interior of the cylinder into a magnetorheological fluid region and a high-pressure gas chamber region, with the working piston located within the magnetorheological fluid region. The working piston consists of an upper cover, a piston core, a piston rod, a lower end gasket, a valve plate, a spring, and a limiting block. The upper cover has a guide band and four evenly arranged through slots of different sizes on both the inner and outer sides. The piston core contains an excitation coil and four auxiliary flow channel elongated holes. The valve plate and spring are sequentially fitted onto the upper end of the piston rod and are axially limited by the limiting block. The guide assembly is installed at the end of the magnetorheological fluid region, with the piston rod passing through it. The assembly consists of a guide, a buffer block, and a guide upper cover. A lower oil seal, a sliding bearing, and an upper oil seal are sequentially arranged inside the guide. The floating piston end face is equipped with a guide band and a sealing ring, and a gas seat is provided on the high-pressure gas chamber side of the cylinder. This vibration damper can meet the asymmetric output requirements of large tension and small compression, and its reasonable structural layout reduces the overall installation difficulty.

The utility model relates to the technical field of titanium concentrate, in particular to a vibration damper suitable for a titanium concentrate vibrating screen, which comprises a plurality of duplex vibration damping units connected with the vibrating screen. Each duplex vibration reduction unit comprises a connecting block arranged on the vibrating screen, a connecting rod and a connecting rod, the first damping spring is arranged at the bottom of the connecting block; the vibration reduction seat is arranged at the bottom of the first damping spring and is connected with the screen body frame; according to the multi-stage vibration reduction screen, the vibration reduction seats are arranged on the screen body frame, the first damping springs are arranged on the vibration reduction seats, and the first damping springs and the vibration reduction seats are matched with each other to achieve multi-stage vibration reduction, so that a vibration energy transmission path is blocked, and structural fatigue and resonance risks are reduced.

A torsional vibration damper comprising a primary mass (2) to be coupled to an input element, a secondary mass (6) to be coupled to an output element, and a spring damper arrangement (10) coupled to the disk-shaped primary mass (2) and the secondary mass (6), comprising several arc springs (11) against which the primary mass (2) and the secondary mass (6) are rotatable relative to each other, wherein the secondary mass (6) has an annular spring channel (9) in which the arc springs (11) are received, and wherein at least one elastic vibration damper device (22, 26) is provided on the primary mass (2). The arrangement is characterized in that the secondary mass (6) has a disk-shaped flange section (7) which transitions into the spring channel (9) at its outer circumference and to which a hub flange (17), via which the connection to the output element is made, is attached.

A waste disposer system includes a primary housing（102） having an outer wall（108）, and a secondary housing（104） having an inner wall（110）, where the secondary housing（104） encloses a portion of the primary housing（102）. The waste disposer system also includes an electronic circuit board assembly（106） located between the outer wall（108） of the primary housing（102） and the inner wall（110） of the secondary housing（104）, the electronic circuit board assembly（106） includes a circuit board housing（140）, a first vibration damper（146） on a first side（142）, and a second vibration damper（148） on a second side（144）. The electronic circuit board assembly（106） further comprises a mounting flange（156）, the mounting flange（156） includes an inwardly-facing surface defining a slot（160）, a mounting fastener（158） having a head（162） and a shaft（164） that extends through the slot（160）, and a vibration damping grommet（166） located between the mounting flange（156） and the mounting fastener（158）.

The utility model discloses a clothing processing equipment and a supporting structure for the clothing processing equipment, the supporting structure comprises a stabilizing rod, the stabilizing rod is provided with a first connecting section and a second connecting section, and the first connecting section and the second connecting section are fixed on a cylinder body of the clothing processing equipment; wherein the plane where the central axis of the cylinder body is located is a projection plane, in the orthographic projection of the stabilizer bar on the projection plane, in the extension direction of the stabilizer bar, the distance between the midpoint of the first connecting section and the midpoint of the second connecting section is L1, the distance between the midpoint of the first connecting section and the adjacent stabilizer bar end point is L2, and L2 is an integer greater than or equal to 2; and the distance between the middle point of the second connecting section and the end point of the adjacent stabilizer bar is L3, and the condition that (L2 + L3) / L1 is larger than 0 and smaller than 1 is met. According to the supporting structure disclosed by the utility model, the supporting structure can effectively restrain the movement of the barrel body, and meanwhile, the vibration energy is absorbed and dispersed through the vibration reduction rod connected with the extension section, so that the noise and the shaking during the operation of equipment are reduced, and the overall stability and the vibration reduction performance of the equipment are improved.

A vibration damper for damping vibrations of a motor vehicle component is disclosed. The vibration damper is passed through by a transverse center plane, and the vibration damper includes a retention apparatus that can be fixed to a motor vehicle component. In embodiments, the vibration damper has at least two receptors that each have an inner side facing the transverse center plane and an outer side facing away from the transverse center plane, has a damper mass with a central longitudinal axis, and has at least two elastomer springs. In embodiments, the elastomer springs couple the damper mass to the receptors with an ability to vibrate, and at least one of the elastomer springs has a connection portion, between the damper mass and respective receptor, that extends at least mainly externally with respect to the respective receptor.

This invention discloses an H-configuration multimodal noise-absorbing vibration damper and its design method, belonging to the field of vibration control technology. The vibration damper includes a composite-clad elastic plate, an elastic plate, a multimodal coupling structure, and movable counterweights. The elastic plate assembly includes a composite-clad elastic plate, which is a layered structure formed by combining fiberglass epoxy board and stainless steel, prepared by a molding process. The material ratio of fiberglass epoxy board to stainless steel is determined according to the formula for the stiffness of a simply supported beam spring. Both sets of movable counterweights can slide and adjust their positions along the length of the composite-clad elastic plate or the elastic plate, adapting to the vibration suppression requirements of different frequency bands by changing the mass distribution of the noise-absorbing vibration damper. The multimodal coupling structure is integrated into the elastic plate assembly, and frequency control of multiple modes is achieved through stiffness matching between the elastic plate assembly and the multimodal coupling structure. This invention can cover a wide frequency band, has high vibration reduction efficiency, and a reliable structure, providing technical support for the field of multi-frequency vibration suppression.

vibration damper (2) comprising - a damper tube at least partially filled with damping fluid, in which a piston rod is movable back and forth, wherein a working piston is movable along with the piston rod, by which the interior of the damper tube is divided into a working space on the piston rod side and a working space away from the piston rod, - at least one pressure stop buffer (1), wherein the at least one pressure stop buffer (1) comprises an outer contour (4) for at least partial inclusion in a dome bearing housing (3) and a hollow cylindrical basic structure with an inner contour (6) for coaxial arrangement on a piston rod (5) of the vibration damper (2), characterized by the fact that the outer contour (4) of the pressure stop buffer (1) has at least in an area relating to the at least partial reception in the strut bearing housing (3) a three-dimensionally structured surface (7) with several protrusions (8, 8', 8'', 8''') and / or several depressions (9, 9', 9'', 9'''), wherein the multiple protrusions (8, 8', 8'', 8''') and / or depressions (9, 9', 9'', 9''') are at least partially homogeneously distributed, at least in the area of ​​at least partial reception in the strut bearing housing (3), wherein more than 5% of the multiple protrusions (8, 8', 8'', 8''') at least in the area of ​​at least partial reception in the strut bearing housing (3) have a height in the range of 0.2 to 0.3 mm relative to the zero plane of a forming tool with which the pressure stop buffer (1) was manufactured.

This invention discloses an anti-impact self-breaking laser cutting head device, comprising a cutting head, a vibration damper, and a mounting sleeve. A steel ring is installed inside the vibration damper, and fiber optic sensing lines are installed on the opposite outer walls of the steel ring. A vibration spring is installed between the bottom of the steel ring and the bottom of the vibration damper. An access hole is provided on the outer wall of the vibration damper corresponding to the position of the fiber optic sensing line. The access hole is connected to a fiber optic sensor via a sensing cable. A first laser beam passes through the sensing cable and the access hole to enter one of the fiber optic sensing lines. The measured fiber optic data is transmitted to the fiber optic sensor via another fiber optic sensing line and another sensing cable. In this invention, when the cutting head end is impacted, the vibration spring is compressed and vibrates, causing the fiber optic lines between the sensing lines to deviate from their original transport path. The fiber optic sensor detects the abnormal data and controls the laser cutting machine to stop based on the abnormal fiber optic signal. The laser cutting machine is stopped when subjected to vibration and impact, preventing damage to the product caused by the dispersion of the first laser beam.

The utility model relates to the technical field of metro tracks, in particular to a vibration and noise reduction structure for metro tracks, which comprises a bearing frame, the top end of the bearing frame is fixedly connected with a bearing pad, and two connecting holes are arranged in the bearing frame. When the rail is used, the connecting bolts can penetrate through the round holes in the bearing pad to connect the rail body with the bearing frame, so that the rail body is in close contact with the bearing pad, pressure is exerted on the shock absorber body and the shock absorption spring through the bearing frame in the subway running process, and therefore the bearing frame descends in the two shock absorption frames, and the shock absorption effect is achieved. At the moment, the noise reduction pad can penetrate through a gap between the two vibration reduction frames to be in contact with the ground along with descending of the bearing frame, so that vibration of the track main body is reduced through cooperation of the bearing frame, the vibration damper main body, the vibration reduction springs and the vibration reduction frames in the running process of the subway; and noise generated during subway running can be reduced through cooperation between the bearing pad and the noise reduction pad, and the effect of improving vibration and noise reduction of the device is achieved.

The utility model relates to an electrical circuit mounting hanger, which belongs to the technical field of electrical circuit mounting, and comprises a base, a moving structure is arranged in the base, the moving structure comprises a threaded rod rotationally connected with the base, a first buffer structure is arranged on the upper side of the threaded rod, and a second buffer structure is arranged on the lower side of the threaded rod. A second buffer structure is arranged on one side of the first buffer structure, the moving structure further comprises a threaded block in threaded connection with the outer side of the threaded rod, a first supporting plate is fixedly connected to one side of the threaded block, and a handle rotationally penetrating through one side of the base is fixedly connected to one end of the threaded rod; one side of the first supporting plate is fixedly connected with the first buffer structure, the clamping plate is used for clamping an electrical circuit through the structure, the first damping vibration reduction spring and the second buffer spring are matched to buffer the electrical circuit, vibration and impact in the electrical operation process are effectively absorbed, and the service life of the electrical circuit is prolonged. And electrical circuits and equipment are protected from being damaged.

This invention discloses a method for preparing a composite vibration damper consisting of a high-pressure-bearing sintered metal fiber body and a metal plate, belonging to the technical field of composite vibration dampers. By controlling factors such as the diameter, porosity, and thickness of stainless steel fibers, and through high-temperature sintering and pressure forming, this invention obtains a stable, high-compressive-strength stainless steel felt sintered body (SFB). The metal plate is then combined with the SFB to fully utilize the vibration damping energy of the SFB, resulting in a high-pressure-bearing metal fiber vibration damper. This vibration damper exhibits high compressive strength and excellent vibration damping performance, and also possesses characteristics such as corrosion resistance, high-temperature resistance, machinability, and strong environmental adaptability.

The present invention relates to a vibration damper (1) comprising a first connecting element (11), a second connecting element (12), and a spring element (10) arranged between the first connecting element (11) and the second connecting element (12). The vibration damper (1) is characterized in that the spring element (10) has a fluid reservoir (13) which at least partially encloses a fluid (14), wherein the fluid reservoir (13) is arranged between the first connecting element (11) and the second connecting element (12).

The utility model relates to an adjustable magnetorheological fluid train shock absorber, and belongs to the technical field of train shock absorbers. The adjustable magnetorheological fluid train shock absorber comprises a shell and a damping rod inserted into the shell. The pressurizing assembly is arranged in the shell and located on the surface of the damping rod; wherein the pressurizing assembly comprises a conical shell arranged on the inner wall of the shell, and an extrusion ring is arranged on the inner wall of the conical shell; by arranging a conical shell and an extrusion ring of the pressurization assembly, when the whole shock absorber is pressed, the extrusion ring extrudes the deep position of the conical shell, the pressure is gradually increased, the effect of self-adaptive pressure adjustment is achieved, and the damping effect and the shock absorption strength of the shock absorber can be effectively improved; through the design of the buffer ring and the deformation holes, a certain deformable space can be provided for the extrusion ring, the compression resistance degree of the extrusion ring is improved, and the problem that the extrusion ring is deformed or the durability is reduced due to long-term compression is reduced.

The application relates to an electromagnetic damping vibration damper, which comprises a wire clamp, a sleeve, permanent magnet hammers and springs. One end of the sleeve is fixedly connected with the wire clamp, the inside of the sleeve is provided with a buffer cavity, and the inner wall of the buffer cavity is entirely covered with an eddy current copper plate. The permanent magnet hammers are arranged in the buffer cavity along the axial direction of the sleeve, the permanent magnet hammers can slide along the axial direction of the sleeve, and a working gap is arranged between the permanent magnet hammers and the eddy current copper plate. One end of the spring is fixedly connected with the permanent magnet hammer, and the other end is fixedly connected with the permanent magnet hammer or the end of the buffer cavity. Four permanent magnet hammers and two adjacent springs are matched to form four groups of electromagnetic energy dissipation units, the natural frequencies of the four groups of electromagnetic energy dissipation units are F1, F2, F3 and F4, and the damping ratio of the four groups of electromagnetic energy dissipation units is between 0 and 1. Each group of electromagnetic energy dissipation units corresponds to an independent natural frequency, four discrete resonance frequency points are formed, and the core frequency band 0-150Hz of the overhead transmission line wind vibration is covered.

1. Name of the product in this design: Vibration damper (SS009RR0415A1). 2. Application of this design: This design is used as a shock absorber for cushioning. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

Sensor module (1) for a vibration damper with at least one damper unit (10), at least one sensor unit (20) and at least one energy generation unit (30) which is at least partially integrated in the damper unit (10), wherein the energy generation unit (30) is configured to convert mechanical force into electrical energy, such that at least the sensor unit (20) can be operated autonomously with energy from the energy generation unit (30), wherein the energy generation unit (30) is configured as a free-vibrating, electromagnetic energy generation unit (30), wherein the damper unit (10) has a housing (12) and at least one first spring element (14), wherein the energy generation unit (30) is configured with a plurality of permanent magnets (32) in the housing (12) of the damper unit (10), wherein the permanent magnets (32) are arranged for resilient mounting on the first spring element (14) of the damper unit (10).and with at least one stationary electromagnetic coil (36) on or in the housing (12) for generating electrical energy from an oscillating motion of the permanent magnets (32), characterized in that the damper unit (10) has a second spring element (16) and the permanent magnets (32) are arranged between and received by the first and the second spring element (14, 16).

The invention discloses a magneto-rheological shock absorber for multi-stage magnet yoke partition excitation and a control method, and belongs to the technical field of shock absorbers. A magneto-rheological shock absorber excited by multiple stages of magnet yokes in a partition mode comprises an oil storage cylinder containing magneto-rheological fluid; a piston assembly is mounted at one end of the piston rod and slidably arranged in the oil storage cylinder, the other end of the piston rod extends out of the oil storage cylinder, and a damping channel is arranged in the piston assembly; the first coil is mounted on the piston assembly and forms a first magnetic field in the damping channel; the second coil is mounted on the piston assembly and forms a second magnetic field in the damping channel; and the permanent magnet is mounted on the piston assembly. The two coils and the permanent magnet are combined to form a comprehensive magnetic field in the damping channel to regulate and control the characteristics of the magnetorheological fluid, the memory characteristics of the permanent magnet are utilized, the damping force can be maintained with zero power consumption under the stable working condition, the overall energy consumption is much lower than that of traditional active control, meanwhile, the wider damping force adjusting range can be achieved, and the damping effect is better. And low-speed comfort and high-speed controllability are both considered.

Cover for a bearing point of a vibration damper, bridging an annular space between a piston rod of the vibration damper and an edge of a receiving opening within the bearing point, wherein the cover has an annular basic shape and a lateral surface of a through-hole for the piston rod forms a contact surface for the piston rod.

The disclosure relates to a vibration damper comprising two adjustable damping valve devices, wherein a damping valve device is connected to a piston-rod-side working chamber via a fluid connection and a damping valve device is connected to a working chamber spaced apart from a piston rod within a cylinder filled with damping medium. A fluid connection between the damping valve device and the working chamber occurs via at least one tube element. Both adjustable damping valve devices are connected to a common balancing chamber for receiving the damping medium displaced out of the working chambers by the piston rod. A line block is connected to the cylinder, which forms a first fluid connection to the damping valve device for one of the working chambers and forms an intermediate tube, encasing the cylinder, for a second fluid connection to the damping valve device for the other of the two working chambers. The second fluid connection is also connected to the line block. Both fluid connections have a separate radial channel within the line block, each being connected to an inlet opening of the damping valve devices. A reducer part is arranged between the cylinder and the first fluid line of the line block, and the second fluid line runs within the line block within a projection surface of the cylinder.