294results about "Multiple spring combinations" patented technology

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.

A ceiling hanger for reducing transmission of vibrations between ceilings and equipment. The ceiling hanger includes a housing and one or more crumb rubber isolators. The housing includes a first surface, a second surface and one or more side walls connecting the first and second surface. The one or more crumb rubber isolators have through holes for receiving a fastener.

A protective headgear can include a core and two or more impact absorbing layers coupled to the core. At least one impact absorbing layer can include a number of impact absorbing components that are configured to absorb and reduce the force of impact incident on the protective headgear. The impact absorbing materials can employ cylindrical segments of viscoelastic foam with a sealed central void to absorb high energy impacts. The protective helmet can reduce the occurrence of concussions and subconcussive impacts to the brain.

The utility model relates to the technical field of elastic elements, in particular to a highly pressure-resistant wave spring which comprises a wave spring body, a fixing ring arranged at the end of the wave spring body, a pressure-resistant mechanism and a lubricating mechanism, and the pressure-resistant mechanism is arranged on the wave spring body and used for fixing the wave spring body through movement of hydraulic oil; the lubricating mechanism is arranged on the inner side of the wave spring body and used for supplementing lubricating oil for the wave spring body when the wave spring body bears high pressure. Through the arrangement of the compression resisting mechanism, when the wave spring resists compression and the first spring and the second spring drive the first sealing push plate and the second sealing push plate to move, hydraulic oil is pushed to move so as to relieve pressure, and therefore vibration energy in a system can be effectively absorbed and dispersed; and therefore, additional stress generated by vibration can be reduced, and although the wave spring has certain vibration reduction performance, the effect can be further enhanced through movement of the hydraulic oil.

A motion isolation system for equipment includes a support structure, a motion platform enabling free movement along a plurality of axes, and a vibration isolation subsystem with a support plate. A biasing mechanism counterbalances at least some of the weight of the motion platform and the vibration isolation subsystem in an upward direction. The surface of the support plate is parallel to the surface of the support structure.

A strut (134, 136, 200) for an optical system (100), comprising a plurality of solid-state joints (234), and a compensation force generating device (300A, 300B, 300C), wherein the strut (134, 136, 200) can be brought from an undeflected state (Z1) into a deflected state (Z2) by means of a deformation of the plurality of solid-state joints (234), and wherein the compensation force generating device (300A, 300B, 300C) is designed to generate a compensation force (F-) when bringing the strut (134, 136, 200) from the undeflected state (Z1) into the deflected state (Z2), which compensation force results from the deformation of the plurality of solid-state joints (234). parasitic force (F+) compensated.

A phase transformational cellular material, including a plurality of bistable cells, each respective bistable cell operationally connected to at least one other respective bistable cell. Each bistable cell enjoys a first stable phase and a second stable phase. The first stable phase is a first geometric configuration and the second stable phase is a second geometric configuration different from the first geometric configuration. An energy transaction is required to shift each respective cell between stable phases. A mechanical energy transaction is required to shift from the first to the second phase, while a thermal energy transaction is required to shift from the second to the first phase.

The invention discloses a self-adaptive multi-stage negative Poisson's ratio energy absorption device and a manufacturing method.The self-adaptive multi-stage negative Poisson's ratio energy absorption device comprises a shell and a negative Poisson's ratio honeycomb structure arranged in the shell, and the negative Poisson's ratio honeycomb structure is formed by a plurality of self-adaptive negative Poisson's ratio unit cell arrays; each self-adaptive negative Poisson's ratio unit cell comprises a negative Poisson's ratio framework, an upper supporting structure and a lower supporting structure, the upper supporting structure and the lower supporting structure are connected to the interior of the negative Poisson's ratio framework, a horizontal supporting platform is arranged in the middle of the negative Poisson's ratio framework, and a preset gap allowing the negative Poisson's ratio framework to shrink and deform is formed in the middle of the horizontal supporting platform of the negative Poisson's ratio framework; the upper supporting structure extends downwards from the joint with the negative Poisson's ratio framework and is provided with an upper supporting platform, and the lower supporting structure extends upwards from the joint with the negative Poisson's ratio framework and is provided with a lower supporting platform; the self-adaptive graded protection device has the advantages that elastic buffering reusability of low-speed collision and multi-stage efficient energy absorption of high-speed collision can be both considered, and self-adaptive graded protection is achieved.

A cushioning element includes interconnected walls that define voids and hollow columns that are substantially cylindrical or cylindrical in shape. Some of the interconnected walls may project laterally from a wall that defines part of a hollow column to further define part of an interspace between a group of hollow columns. Methods of designing cushioning elements with hollow columns that are substantially cylindrical or cylindrical are also disclosed.

The utility model relates to the technical field of lining plates, in particular to a combined type abrasion-resistant buffering lining plate which comprises a lining plate body, a reinforcing assembly is arranged on the peripheral wall of the lining plate body and used for reinforcing and supporting the lining plate body, and a fixing assembly is arranged on the side wall of an edge sealing piece and used for combining and fixing the lining plate body. According to the lining plate, the reinforcing assembly is arranged on the peripheral wall of the lining plate body, the supporting force and toughness of the edge of the lining plate body can be improved through the edge sealing piece and the reinforcing piece on the reinforcing assembly, the endurance and elasticity of the lining plate body are improved, and the service life of the lining plate body is prolonged; meanwhile, a fixing assembly is arranged on the side wall of the reinforcing assembly, a fixing plate on the fixing assembly is inserted into the other set of edge sealing pieces, fixing is conducted through the fixing plate, the lining plate body can be conveniently combined for use according to the size of a product, and the applicability of the lining plate is improved.

The invention relates to a modular vibration damping system (1) for the vibration-damping attachment of add-on components (2) to a substrate. The vibration damping system (1) comprises vibration damping elements (3) connected to the vibration damping system (1) by means of connectors (5). The vibration damping elements (3) have a layered structure with damping layers (8, 9, 10) that are subjected to compressive stress when an add-on component (2) is attached.

A bearing (20) comprising a flange part (30) comprising at least one holding portion (31) and a cavity lined with an elastomer coating (60), the cavity being designed to at least partially accommodate a suspended member, the bearing (20) being characterized in that the elastomer coating (60) has a variable radial hardness such that it has a variable torsional and radial stiffness.

Provided is an anti-vibration device (1) including: a first anti-vibration rubber cylinder (11) that connects a vibration generating portion and a vibration receiving portion in a first direction; a second anti-vibration rubber cylinder (12) that sandwiches one of the vibration generating portion and the vibration receiving portion in the first direction between the first anti-vibration rubber cylinder (11) and itself; and a support member (13) that sandwiches the second anti-vibration rubber cylinder (12) in the first direction between the one of the portions and itself, wherein the first anti-vibration rubber cylinder (11) and the second anti-vibration rubber cylinder (12) are provided with respective central axes (O) thereof extending in the first direction, and peripheral grooves (15) are formed separately on an outer peripheral surface and an inner peripheral surface of at least one of the first anti-vibration rubber cylinder (11) and the second anti-vibration rubber cylinder (12).

The present invention discloses a multi-stable stiffness-adjustable elastic mechanism, which includes an elastic component and a base component. The elastic component includes a first elastic beam, a second elastic beam and a moving block. Both the first elastic beam and the second elastic beam can generate elastic deformation. The first elastic beam and the second elastic beam are cross-fixed by the moving block. The first elastic beam is connected to the upper disc in the base component, and the second elastic beam is connected to the lower disc in the base component. The upper disc rotates relative to the lower disc, so that the second elastic beam and the first elastic beam are bent and deformed, and initial internal stress is generated inside the first elastic beam and the second elastic beam. Due to the isotropy of the material, the stiffness of the first elastic beam and the second elastic beam in the bending orthogonal direction changes. The stiffness of the elastic mechanism can be adjusted by reciprocating the moving block along the rotation axis direction of the upper disc. By changing the change of the bending angles of the first elastic beam and the second elastic beam, the stiffness change range can be controlled, and the adaptability of the elastic mechanism is improved.

The invention relates to the field of semiconductor power devices, and discloses an elastic assembly for modulating high-frequency oscillation characteristics, the elastic assembly comprises a short circuit board, a disc spring group, a transmitting polar plate and a sleeve, the surface of the transmitting polar plate is provided with a round hole, the round hole is used for installing the disc spring group, the disc spring group is installed between the short circuit board and the transmitting polar plate, and the sleeve is sleeved on the short circuit board. The sleeve is arranged at one end of the connecting position of the disc spring sets and the short-circuit board in a sleeving mode, the multiple disc spring sets are in short circuit through the short-circuit board, the chip path is optimized, the parasitic path is remarkably shortened, the parasitic inductance is reduced, and therefore high-frequency oscillation is effectively restrained. The clamping grooves and the disc spring sets are consistent in number and are designed in a staggered mode, the assembling accuracy and efficiency are improved, the space is reasonably utilized, and the stability of the disc spring sets is guaranteed. In addition, contact between the flow deflectors is avoided through staggered installation, and mutual influence is reduced.

The present invention relates to abracket for damping forces between a wall and a floor of a building. The bracket comprises a first and a second anchoring plate, at least two cylindrical channel elements connected to the first anchoring plate and at least one cylindrical channel element connected to the second anchoring plate. The bracket is characterized by a radial damping element inside each cylindrical channel element, the radial damping element(s) thereby providing damping of radial forces between the anchoring plates, and at least one axial damping element damping axial forces between the anchoring plates, wherein the connection member is extending though a through-hole of each radial damping element and a through-hole of said axial damping element. Thus, a bracket according to the present invention permits damping in at least two substantially different directions, preferably in a radial direction and an axial direction.

The utility model discloses an EPP shock absorption guard board with good sound insulation effect, which comprises a guard board section and base board sections, the base board sections are respectively arranged on two sides of the guard board section, an interlayer is arranged in the guard board section, sound insulation channels and clamping boards are arranged in the interlayer, the sound insulation channels and the clamping boards are arranged alternately, each sound insulation channel comprises a straight board and a bent board, and the straight boards and the bent boards are arranged in parallel. Relates to the technical field of EPP protective plates. Due to the fact that the convex plates and the concave plates are arranged alternately, the cutting grooves are formed in one sides of the convex plates, and the concave plates are embedded in the cutting grooves, the base plate section can be cut through the tightly-arranged cutting grooves in the cutting process, the whole cut plate is close to the required length, the follow-up finishing frequency is reduced, and the cutting efficiency is improved. And the plurality of groups of straight plates and bent plates are fixedly connected to form a continuous wavy structure, so that after a part of sound waves are absorbed by the guard plate section, the sound waves with weakened residual energy can be collided and absorbed for multiple times in the straight plates and the bent plates, and a good noise reduction effect is realized.

The utility model belongs to the technical field of shock absorbers, and particularly relates to a high-load-bearing shock absorber which comprises a piston assembly. A damping assembly; a voltage transformation assembly; wherein the damping assembly and the pressurizing assembly are both arranged on the piston assembly.

The present invention provides an elastic connecting member having different elastic performances, which includes a first sleeve (10) and a second sleeve (20). The first sleeve includes a first elastomer (16), a first inner skeleton (12) surrounded by the first elastomer, and a first outer skeleton (14) surrounding the first elastomer. The second sleeve includes a second elastomer (26), a second inner skeleton (22) surrounded by the second elastomer (26), and a second outer skeleton surrounding the second elastomer. The first elastomer and the second elastomer exhibit different elastic performances. This constitutes an improved elastic connecting member.

The utility model discloses an automobile air shock absorber assembly with a dustproof function. The automobile air shock absorber assembly comprises a shock absorber body, the adjusting bearing is fixed at the bottom of the shock absorber body; the piston rod is arranged on the inner sides of the shock absorber body and the adjusting bearing in a penetrating manner; the threaded ring is connected to the outer side of the end, away from the shock absorber body, of the piston rod; the anti-loosening mechanisms are arranged between the threaded ring and the positioning end in a regular annular array mode. Through the synergistic effect of the dustproof cover, the positioning column and the elastic component, external dust, sand grains and other impurities can be effectively prevented from entering the shock absorber in the vehicle running process, an L-shaped ring at the bottom of the dustproof cover is tightly matched with an L-shaped groove of the positioning end, and a threaded connection structure between a threaded ring and the positioning end is additionally arranged, so that the shock absorber is more compact in structure. The dustproof cover can be kept stable under various driving conditions and cannot fall off or shift due to vibration, so that reliable dustproof protection is continuously provided.

This torsion spring has: a plurality of elements that are each rotatable about a common rotation center line, and that are arranged in the extension direction of the rotation center line; and a connection member that connects two adjacent elements. The connection member comprises: a first connection part that is connected to one of the two adjacent elements; a second connection part that is connected to the other of the two adjacent elements; and an elastic deformation part that is connected to the first connection part and the second connection part, and that elastically deforms when one of the two adjacent elements rotates relative to the other.

The invention relates to the technical field of railway vehicles, and provides a damping device and a railway vehicle. In the damping device, self-adaptive rigidity adjustment of a dynamic load is achieved through cooperation of a main spring assembly and an auxiliary spring, in a first-stage bearing range, a bearing connecting piece moves along with the main spring assembly and keeps a separated state from the auxiliary spring, and the main spring assembly elastically deforms independently to provide basic rigidity; in the second-stage bearing range, the bearing connecting piece further moves along with the increase of the load and abuts against the auxiliary spring, the auxiliary spring and the main spring assembly cooperatively deform to provide composite rigidity with higher supporting force, and therefore the damping requirements under different load working conditions are met. Through grading cooperation of the main spring assembly and the auxiliary spring, the low overall rigidity is kept in the low-load state, and vibration transmission is effectively reduced; higher composite rigidity is provided in a high-load state, excessive deformation of the floor is effectively restrained, automatic adaptation to different load working conditions is achieved, good balance is achieved between light load and heavy load, and safety and comfort are improved.

An arrangement for mounting a blower assembly of an HVAC unit. The arrangement comprises a fixture, and one or more support brackets coupled to the fixture and the blower assembly. The one or more support brackets are designed so as to absorb vibrations caused due to operation of the blower assembly or during transportation.

The present invention discloses an integrated quasi-zero stiffness structure, a quasi-zero stiffness vibration isolation device and a vibration isolation method. The integrated quasi-zero stiffness structure is composed of a plurality of parallel inclined beam units connected in series, rigid connectors connecting each beam segment, and constraint bearing components at both ends of the structure. The structure generates quasi-zero stiffness through the mutual constraint between adjacent beam segments, and its action mechanism is different from that of the existing quasi-zero stiffness structures. It does not require positive and negative stiffness matching, has accurate and stable quasi-zero stiffness, and has relatively high initial stiffness and high load-bearing capacity. The present invention discloses the form of this type of structure, the mechanical mechanism for the structure to generate quasi-zero stiffness, and the quasi-zero stiffness device based on this type of structure. Compared with the traditional quasi-zero stiffness vibration isolation device, it has the advantages of light weight, high strength, reliable stiffness, simple and integral structure, and broad application prospects.

The invention provides a star-shaped chiral impact-resistant energy-absorbing metamaterial and an adjusting method of a metamaterial structure. The metamaterial comprises a multi-layer structure formed by permutation and combination of a plurality of star-shaped chiral structure unit cells. Wherein each star-shaped chiral structure unit cell has rotation similarity and comprises a chiral structure star-shaped structure located at the center position and four corners of the star-shaped structure arranged on the periphery of the chiral structure; the metamaterial forms a transition structure and has second-order plateau stress when subjected to rapid impact force. By utilizing the metamaterial, the problems that an existing metamaterial cannot realize load reduction and energy absorption at the same time, and the posture of the structure is unstable under large deformation can be solved.

This application discloses a multi-stage energy-absorbing unit, a multi-stage energy-absorbing mechanism, and a drone battery protection device. The multi-stage energy-absorbing unit includes a hexagonal honeycomb structure and a supporting structure. The hexagonal honeycomb structure includes a first pressure plate and a second pressure plate. The supporting structure is located in the middle region between the first and second pressure plates, with one end fixed to the first pressure plate and the other end at a predetermined distance from the second pressure plate. The multi-stage energy-absorbing unit has a first deformation stage and a second deformation stage. By providing a supporting structure at a certain distance from the second pressure plate within the hexagonal honeycomb structure, this application enables the multi-stage energy-absorbing unit to have both a first and a second deformation stage. Compared to existing technologies, this provides energy absorption protection under both low-energy and high-energy impacts.

The invention discloses a multi-section beam type quasi-zero stiffness structure device, and belongs to the technical field of low-frequency vibration isolation. The structure comprises an integrated circular platform and four flexible supporting beams, the supporting beams are arranged below the platform in a cross-shaped mirror symmetry mode, and the far ends of the supporting beams are fixed to a base. All the sections of beams form a mirror symmetry structure, and the quasi-zero stiffness characteristic of the whole structure is achieved through the geometric nonlinear effect generated by the inclined beams under vertical pressure. The structure is integrally formed through 3D printing, the manufacturing precision is high, and assembling is easy and convenient. Under a vertical loading load, the flexible beams generate nonlinear coupling bending, so that the platform shows quasi-zero stiffness response within a certain displacement range, and the vibration isolation platform is suitable for low-frequency vibration isolation. Structural parameters are subjected to optimization design through finite element simulation in combination with a Kriging agent model and a genetic algorithm, so that a wider quasi-zero stiffness platform and better mechanical properties are obtained. The structure is suitable for vibration isolation systems of equipment sensitive to low-frequency vibration, such as precise instruments, MEMS devices and spaceflight assemblies.

The bidirectional frequency-avoiding vibration absorber assembly comprises a mass block and a damping unit, the damping unit is installed and connected to the inner side of the mass block, the damping unit comprises an outer sleeve and an installation support, the outer sleeve is installed on the outer side of the installation support in a sleeving mode, and the installation support is provided with a rectangular section; the installation support comprises two symmetrically-arranged long-edge end faces and two symmetrically-arranged short-edge end faces, second rubber damping bodies are connected between the long-edge end faces and the inner wall of the outer sleeve, and first rubber damping bodies are connected between the short-edge end faces and the inner wall of the outer sleeve. Different inherent frequencies are achieved on one vibration absorber in two directions forming a 90-degree angle, a vibration absorber assembly product capable of avoiding the frequencies in the two directions is obtained, the use amount of automobile parts can be effectively reduced through application of the vibration absorber assembly, and the light weight of the whole automobile and the reduction of the automobile cost are facilitated.

The invention discloses a high-reliability whole-satellite vibration isolator structure which comprises a main vibration isolator, a damping vibration isolation layer, a damping vibration isolation pad and a limiting bolt. Wherein the damping vibration isolation layer is arranged on the upper surface of the peripheral side of the main vibration isolator; the damping vibration isolation pad is arranged in a groove formed in the middle of the main vibration isolator. One end of the limiting bolt penetrates through the damping vibration isolation layer and the main vibration isolator and then is connected with a satellite subjected to vibration reduction. The damping device has the advantages of high reliability, high damping efficiency and high buffering efficiency.