398results about "Multiple spring combinations" patented technology

The three-degree-of-freedom parallel vibration isolation platform with the quasi-zero stiffness characteristic comprises a static platform, a movable platform and a plurality of sets of branch chains, and each branch chain comprises a supporting column, a vertical spring, an L-shaped supporting frame, an upper connecting rod, a lower connecting rod and a horizontal spring; the lower end of the supporting column is fixed to the static platform, and the upper end of the supporting column is connected with the lower end of the vertical spring through a first adjusting mechanism. The upper end of the vertical spring is fixed below the movable platform; the lower end of the L-shaped supporting frame is fixed to the static platform, the horizontal spring is installed on the L-shaped supporting frame through the spring seat, and the spring seat, the lower connecting rod, the upper connecting rod and the movable platform form a first rotating pair, a second rotating pair and a third rotating pair which are parallel to one another. The three-degree-of-freedom vibration isolator has the flexible motion characteristic, the space three-translation-degree-of-freedom vibration isolation requirement is met, and by adjusting the pre-compression amount of the springs, the approximate zero-rigidity characteristic can be achieved in the X direction and the Y direction, and the zero-rigidity characteristic can be achieved in the Z direction.

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.

Provided is a method for manufacturing a pressure spring comprising a first plate spring and a second plate spring that extend in a length direction, wherein both end parts in the length direction of the first plate spring are stacked in a plate thickness direction on and joined to both end parts in the length direction of the second plate spring, intermediate parts in the length direction of the respective first plate spring and second plate spring face each other in a state of being separated from each other in the plate thickness direction, a length of the intermediate part of the second plate spring along a surface of the second plate spring as viewed from a plate width direction is shorter than a length of the intermediate part of the first plate spring along a surface of the first plate spring as viewed from the plate width direction, and, in the intermediate part of the first plate spring, a stress in the direction of stretching along an outer surface of the first plate spring as viewed from the plate width direction is applied to the outer surface side that is the opposite side to the second plate spring along the plate thickness direction. The method performs a joining step for joining both end parts in the length direction of the first plate spring to a long second plate spring material configured by integrally connecting a plurality of second plate springs in the length direction, and a cutting step for cutting at least the second plate spring material to obtain a pressure spring, in this order.

To stably exhibit properties such as conductivity and heat transfer, for example, as designed.SOLUTION: A spring member disposed between two bodies to be pressed facing each other in a first direction, comprises a first member, and a second member different from the first member, composed of a different material. The second member is curved or bent such that an intermediate portion in a second direction orthogonal to the first direction projects toward the other side of the first direction. The first member extends along the second member, and intersects the second member in the first direction. The first member is located in the intermediate portion in the second direction on the other side of the first direction from the second member, and also located in a portion other than the intermediate portion in the second direction on the one side in the first direction from the second member.SELECTED DRAWING: Figure 2

The embodiment of the invention relates to the technical field of electronic equipment, and provides a compliant constant-rigidity mechanism, a rotating shaft device and terminal equipment. The compliant constant-rigidity mechanism comprises at least one sheet-shaped compliant constant-rigidity body; the flexible constant-rigidity body comprises a first force exerting part, a second force exerting part spaced from the first force exerting part, and a deformation part located between the first force exerting part and the second force exerting part and connected to the first force exerting part and the second force exerting part. The side, back to the deformation part, of the first force exerting part is used for being connected with an external object, and the side, back to the deformation part, of the second force exerting part is used for being connected with the external object. The deformation part, the first force exerting part and the second force exerting part are located in a first plane, and the deformation part can elastically deform in the first plane. Compared with the prior art, the flexible constant-rigidity body provided by the embodiment of the invention is of a sheet structure, and compared with a spring, the flexible constant-rigidity body can provide larger elastic force under the condition of the same thickness, so that the light and thin design of the applied device is facilitated.

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

The invention relates to a flexible buffer material as well as a preparation method and application thereof, belongs to the technical field of damping materials, and solves one of the problems of non-uniform pressure transmission, insufficient conduction pressure, loose contact between a pressurizing interface and an interface of a to-be-treated material, easiness in damage to the to-be-treated material, poor wear resistance and poor elasticity and ductility in the prior art. The invention discloses a flexible buffering material. The flexible buffering material is of a three-layer structure formed by sequentially stacking a flexible rubber layer, a fiber-reinforced composite interlayer core body and a wear-resistant rubber layer. Wherein the fiber reinforced composite interlayer core body comprises a multi-gradient density unit. The flexible buffer material has excellent wear resistance and elasticity, realizes high-quality pressurized bonding of easily damaged materials, and plays a certain role in protecting to-be-treated materials on the premise of ensuring uniform pressure transmission, tight interface contact and standard conduction pressure.

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.

A bearing bush for movably holding a generator-side component and a foundation-side component of a wind turbine may include an elastomer body having a cavity for receiving a foundation-side or generator-side bearing bolt defining a longitudinal direction, and a tensioning assembly adapted to compress the elastomer body on both sides in the longitudinal direction in such a way that it exerts a pretensioning force directed in the longitudinal direction on both sides of the elastomer body when compressing the elastomer body.

A defusing cell includes walls and spheroid elements. The walls are physically connected together to form a first perimeter, a second perimeter, and a hollow center region. A wall has a length and is an angle with respect to the first perimeter. The first perimeter is separated from the second perimeter by a distance based on the length and an angle of the wall. The second perimeter is larger than the first perimeter. The spheroid elements are arranged in a pattern to distribute and disperse an impact force impacting the defusing cell from the second perimeter with respect to the first perimeter.

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 belongs to the technical field of wind power vibration reduction, and particularly relates to a separating type generator elastic supporting spring and a setting method. The separating type generator elastic supporting spring comprises at least two conical spring assemblies which are coaxially arranged in a sleeved mode, each conical spring assembly comprises a rubber layer, and the inner side and the outer side of each rubber layer are provided with an inner conical face and an outer conical face respectively; the inner partition plate is arranged on the inner conical surface of the adhesive layer; the outer partition plate is arranged on the outer conical surface of the rubber layer, and the conical spring assemblies with different numbers and different physical characteristics have new physical characteristics after being coaxially arranged in a sleeved mode.

The utility model discloses a variable-rigidity high-reliability shock absorber which comprises a gasket, a low-rigidity shock absorption ring, a high-rigidity shock absorption ring, a low-rigidity shock absorption column, a high-rigidity shock absorption column and a sleeve. The section of the sleeve is in an inverted-T shape, the sleeve comprises a hollow cylinder and a circular ring fixed to the lower portion of the hollow cylinder, the hollow cylinder is sleeved with the low-rigidity vibration reduction column and the high-rigidity vibration reduction column, the outer diameter of the low-rigidity vibration reduction column, the outer diameter of the high-rigidity vibration reduction column and the inner diameter of a supporting lug hole of a vibration-reduced object are the same, and the outer diameter of the low-rigidity vibration reduction column is larger than the inner diameter of the supporting lug hole of the vibration-reduced object. The low-rigidity vibration reduction column and the high-rigidity vibration reduction column are installed in a supporting lug hole of an object subjected to vibration reduction in a combined mode, and the gasket and the sleeve are installed in a combined mode. The shock absorber disclosed by the utility model has the characteristic of variable stiffness, can adapt to different working conditions, and can meet the comprehensive shock absorption requirements of small load in orbit of space equipment and large load launched along with a rocket, and the comprehensive shock absorption requirements of small load of airborne weapons in hanging flight along with an airplane and large load in autonomous flight after launching.

The invention belongs to the technical field of mechanical vibration, and particularly relates to a multi-degree-of-freedom dynamic vibration absorber and an adjusting method. The multi-degree-of-freedom dynamic vibration absorber comprises a connecting bottom plate, a protective cover, a rubber block and a top plate; the connecting bottom plate and the protective cover are detachably connected to form a closed cavity, the bottom surfaces of the rubber blocks are fixed on the surface of the connecting bottom plate in the closed cavity, and the top surfaces of the rubber blocks are connected with the top plate. When the inherent frequency is consistent with the frequency of the controlled structure, the optimal dynamic vibration absorption effect can be achieved.

The invention relates to a MEMS component (700), in particular a MEMS actuator or sensor, with a micromechanical diaphragm spring (1), comprising a first diaphragm spring element (10) and a second diaphragm spring element (20) with a convex or concave, two-dimensional curvature, at least in certain regions. The first diaphragm spring element (10) is mechanically coupled to the second diaphragm spring element (20) such that a resultant spring force (501) of the diaphragm spring (1) is transmitted from the first and second diaphragm spring elements (10, 20). The micromechanical diaphragm spring (1) is further integrated into a layered structure (600) of the MEMS component (700) such that the resultant spring force (501) of the diaphragm spring (1) acts essentially in the layered direction of the layered structure (600).A device for pre-deflection of the diaphragm spring (1) is configured to set an operating point of the diaphragm spring (1) with respect to the spring characteristic curve by means of a permanent elastic deflection of the diaphragm spring (1), in particular such that the operating point lies in an at least approximately linear spring characteristic curve region of the diaphragm spring (1) with a low slope. The invention further relates to a method for manufacturing diaphragm springs (1) suitable for such MEMS components (700).

The invention discloses an air damping and spring damping composite vibration isolation device which comprises a mounting base, a load platform, a spring damping structure arranged on the mounting base and used for supporting the load platform, and a pre-pressing fastening structure used for adjusting the distance between the mounting base and the load platform. The buffering air bag is provided with a pneumatic integrated system, and the pneumatic integrated system comprises a sensor, an inflation and deflation device for controlling the air pressure in the buffering air bag and a matched control center. The invention further provides a vibration isolation control method. The device provided by the invention can realize efficient isolation and effective buffering of low-frequency vibration.

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.