484 results about "Rubber bearing" patented technology

Dandelion processes, compositions and products are provided. One process is a method of preparing dandelion that utilizes a species of a Taraxacum genus, the process including the steps of extracting and recovering a rubber and a carbohydrate from a dandelion root substantially simultaneously. The process employs a dandelion species that is selected from the group consisting of: Taraxacum officianale, Taraxacum kok-saghyz, a rubber-bearing species of the genus Taraxacum, and a combination of two or more thereof. This Abstract is provided for the sole purpose of complying with the Abstract requirement rules that allow a reader to quickly ascertain the subject matter of the disclosure contained herein. This Abstract is submitted with the explicit understanding that it will not be used to interpret or to limit the scope or the meaning of the claims.

The invention belongs to the technical field of rubber and discloses an ultra-high damping rubber composite material and a preparation process of the rubber composite material. The preparation process disclosed by the invention is mainly technically characterized by comprising the following steps of: adding short fibers, carbon black, petroleum resin, a plasticizer, a vulcanizing agent, an active agent, an accelerant and an anti-aging agent in rubber; and mixing the components in an internal mixer and then vulcanizing in a flat vulcanizing machine. According to the ultra-high damping rubber composite material disclosed by the invention, a predetermined amount of short fibers, carbon black and petroleum resin are uniformly dispersed in a rubber matrix; compared with the common high-damping material, the damping coefficient of the ultra-high damping rubber composite material disclosed by the invention is increased by more than 20%; and the ultra-high damping rubber composite material disclosed by the invention has the advantages of being strong in energy consumption property and ductility and obvious in damping and shock insulating effects, effectively controlling the earthquake response of shock insulating structures, and being environment-friendly and stable in property. The stretching strength is greater under the condition with the same hardness, so that a rubber bearing prepared by the ultra-high damping rubber composite material disclosed by the invention is greater in bearing force; the whole size of the bearing is smaller than the size of the traditional high-damping rubber bearing; and the rubber bearing has the advantages of saving the use space, being convenient to construct and more excellent in resistance to fatigue performance.

The invention relates to a three-dimensional seism isolation system, which comprises preburied parts, first horizontal limit springs, a connecting plate, a horizontal slide bearing sliding plate, a horizontal slide bearing slider, upper slope leveling connecting plates, flush bolts, lead rubber bearings, second horizontal limit springs, lower slope leveling connecting plates and retaining blocks. Vertical seism is isolated by the deformation displacement of the inclined lead rubber bearings; horizontal seism is isolated by the sliding of the horizontal slide bearing slider; restoring force is supplied by the springs, and thereby the purpose of three-dimensional seism/vibration absorption is realized. The novel three-dimensional seism isolation system can protect protected objects of an upper building during horizontal and vertical vibration and seism and effectively attenuate the vibration transmission of vibrating equipment. The three-dimensional seism isolation system is applicable to the seism and vibration control and protection of building structures and large equipment.

The invention discloses a high speed railway bridge bearing anchoring mortar material with is blended from components of, by weight: 37 to 45% of sulphoaluminate cement, 0 to 8% of Portland cement, 0 to 5% of an addition, 45 to 55% of graded river sand, 0.04 to 0.18% of a solidification retarder, 0.05 to 0.12% of an accelerant, 0.15 to 0.4% of a water reducing component, 0.05 to 0.15% of a defrothing component, and 0 to 0.1% of fiber. The material provided by the invention is specially used in anchoring and grouting of high speed railway bridge pot rubber bearings. The material has characteristics of good fluidity, high early strength, good filling properties, no strength reversing in later stage, low cost, convenient application, and the like. The material also can be applied in large equipment installation and pavement rush-repairing.

A spring-strut supporting bearing has at least one rubber bearing and a first fastening part for connecting it to the vehicle body. A second fastening part fixes a piston-cylinder assembly in position relative to the at least one rubber bearing and the first fastening part, the first fastening part being fixedly connected to the vehicle body via a securing ring.

The invention relates to a self-adaption stiffness characteristic motion decoupling three-dimensional earthquake/vibration isolation support. The support mainly includes an upper connecting plate, anintermediate plate, a lower connecting plate, a disc spring, a compression spring, pre-pressing springs, a laminated lead core rubber bearing and viscous dampers. The upper connecting plate, the intermediate plate and the lower connecting plate are made of high-strength low-carbon steel and have high bearing capacity. The upper connecting plate and the intermediate plate are engaged with each other to play a motion guiding role. The disc spring, the compression spring, the pre-pressing springs, the laminated lead core rubber bearing and the viscous dampers together form a vertical earthquake/vibration isolation system. The laminated lead core rubber bearing, the pre-pressing springs and the viscous dampers form a horizontal earthquake/vibration isolation system. The invention belongs to apassive self-adaption vibration control method, can be used for buildings affected by environmental vibration, and can isolate seismic oscillation while isolating the environment vibration.

The invention discloses a bidirectional fluid-solid-heat coupling calculating method of a water-lubricated rubber bearing, comprising the following steps of setting basic assumption of a solution process according to the special structure and practical operating condition of the water-lubricated rubber bearing and combined with heat transfer characteristics of the water-lubricated rubber bearing; determining fluid, solid and temperature field coupling boundary conditions of the water-lubricated rubber bearing; building fluid domain and solid domain solution models, including mathematical models and mechanical models, of the water-lubricated rubber bearing,; meshing the fluid domain and solid domain of the water-lubricated rubber bearing by means of a finite element software platform and professional meshing software; building differential control equations of the fluid domain, solid domain and heat transfer characteristics of the water-lubricated rubber bearing; and building a fluid-solid-heat coupling model of the water-lubricated rubber bearing, solving the fluid-solid-heat coupling model by using a numerical method, and obtaining deformation conditions of the fluid domain, solid domain and temperature field. The method is effectively suitable for three-field coupling solution of the water-lubricated rubber bearing, solution precision is high, and the number of iterations is low.

The invention provides wide temperature range high damping shock absorption rubber. In the formula of the shock absorption rubber, a great amount of emulsified butyl rubber is used and is matched with the interaction between organic low molecules and high polymers so as to produce high damping characteristics in a wide range and simultaneously have higher electric insulativity. The wide temperature range high damping shock absorption rubber can used for preparing high speed railway damping rubber bearing pads, motor shock absorption rubber cushions, apparatuses with higher requirements on the operating environment, and the like, and providing the necessary functions of buffering, vibration damping, and insulation.

The invention discloses a composite material backing water-lubricated rubber bearing and a preparation method thereof, belongs to the technical field of water-lubricated bearings, and solves the problems that large-size and high-precision water-lubricated bearings are difficult to manufacture at the same time in the prior art and the product cost is high. The composite material backing water-lubricated rubber bearing comprises a bearing outer sleeve (10) and a rubber surface layer (2), wherein the bearing outer sleeve (10) is prepared by winding glass fiber (5) presoaked with epoxy resin (7) onto the rubber surface layer (2), curing and forming. According to the invention, the composite material is used instead of yellow brass as the water-lubricated bearing outer sleeve, so that large quantities of noble metal materials are saved and the cost of the water-lubricated bearing product is reduced; and as the curing and forming technology is adopted and the process is simple, the composite material backing water-lubricated rubber bearing has the advantages of large size, high precision and easiness in processing.

The invention relates to a manufacturing method of a vibration-isolating rubber bearing for building, which adopts a mould to make internal steel plates and internal rubber by pressing to form an internal rubber and internal steel plate composite layer and an internal rubber, internal steel plate and internal rubber composite layer, and the size is precise and the thickness error is 0.05mm. The invention solves the offset problem of the internal steel plates, and simultaneously no residual rubber is removed; no air is generated in the process of curing mold, so no air needs to be exhausted. Since the rubber protective layer of the vibration-isolating rubber bearing for building adopts an injection rubber process, the rubber protective layer of the vibration-isolating rubber bearing for building can adopt more anti-aging special rubber different from the internal rubber, such as EPDM rubber, halogenated butyl rubber, mixing polyurethane rubber and the like, thereby improving the quality and service life of products.

The invention provides a large full-gyration offshore platform crane which relates to the lifting machinery and comprises a rotary column, an arm support, a main lifting winch, an auxiliary lifting winch, an arm support variable-breadth winch, a gyration bearing drive mechanism, a main hanger hook, an auxiliary hanger hook and a driver cab. The arm support is connected with the middle part of the rotary column through a hinge point mounted on the root of the arm support; the lower half part of the rotary column is arranged under a main deck and connected with a semi-diving platform through the gyration bearing drive mechanism. The gyration bearing mechanism is composed of an upper radial bearing, a lower radial bearing, a peg-tooth, a three-in-one decelerator, a centripetal thrust bearing and a rubber support; the upper radial bearing and the lower radial bearing are respectively mounted on the middle and the lower parts of the rotary column. The centripetal thrust bearing and the rubber bearing are sequentially mounted on the bottom part of the rotary column; the peg-tooth mounted on the lower deck is meshed with the three-in-one decelerator mounted on the corresponding position of the rotary column. The large full-gyration offshore platform crane has the advantages of novel, compact and practical structure, high efficiency and being a large full-gyration offshore platform crane with economical and practical properties.

The invention provides an embedded elastic rubber bearing device. The embedded elastic rubber bearing device comprises an elastic rubber bearing, an upper reinforcement steel plate and a lower reinforcement steel plate; a post-tensioning pre-stressing penetration steel tube hole is formed in the center of the elastic rubber bearing, and energy-consumption reinforced bar holes for allowing penetration of energy-consumption reinforced bars are formed in the circumference of the elastic rubber bearing; steel tube penetration holes and energy-consumption reinforced bar holes, positions and forms of which are in one-to-one correspondence with steel tube penetration holes and energy-consumption reinforced bar holes in the elastic rubber bearing, are respectively formed in the upper reinforcement steel plate and the lower reinforcement steel plate; in use, a post-tensioning pre-stressing penetration steel tube and energy-consumption steel tubes respectively and sequentially penetrate through the steel tube penetration holes and the energy-consumption reinforced bar holes formed in the upper reinforcement steel plate, the elastic rubber bearing and the lower reinforcement steel plate; the upper reinforcement steel plate and the lower reinforcement steel plate are respectively closely adhered to the upper surface and the lower surface of the elastic rubber bearing; shear studs are annularly welded between the penetration steel tubes and the energy-consumption reinforced bars of the upper reinforcement steel plate and the lower reinforce steel plate, and stirrups are annularly arranged on the outer sides of the energy-consumption reinforced bars. The construction method, which is provided by the invention, provides an anti-seismic energy-consumption connection method for cast-in-place reinforced concrete pile caps and piers.

Rubber bearing for chassis parts in motor vehicles includes an inner tube which can be installed in a first chassis part, a concentrically arranged intermediate part which is slideably rotatable on said inner tube, an elastomeric body which surrounds and tightly adheres to the intermediate part and which can be installed in a second chassis part. The intermediate part which is fixedly connected with the elastomer body is provided with a sliding coat on its inner circumferential surface.

The invention relates to a multilayer rubber laminated isolation bearing which mainly comprises an upper connecting plate, a lower connecting plate, a laminated rubber elastic body, a steel sheet and a lead core rod, wherein the laminated rubber elastic body and the steel sheet are clamped between the upper connecting plate and the lower connecting plate, and the lead core rod is sealed at the center of the laminated rubber elastic body. Lead cores are poured into a laminated rubber bearing, a plurality of thin rubber layers are laminated to form the laminated rubber elastic body clamped between the upper connecting plate and the lower connecting plate, multilayer rubber is laminated to form a rubber interlayer, so that the initial rigidity and the yield strength of the isolation bearing are improved, the isolation bearing can function in seismic isolation and absorption for house buildings, bridges, precise instruments and the like, horizontal equivalent rigidity is enlarged, horizontal displacement of the isolation bearing is enlarged when an earthquake occurs, the damping property of the bearing is improved, and energy generated by the earthquake is reduced by the aid of horizontally bilateral displacement, so that seismic isolation and absorption are realized.

The invention relates to an automobile energy-absorbing steering column, consisting of a steering column installation base sleeve, a steering shaft and a steering column installation base; the upper installation base sleeve and the lower installation base sleeve are internally provided with an upper spring base, a lower spring base, a spring and a rubber sleeve; the upper spring base is arranged in the upper installation base sleeve, the axial positioning of the upper spring base is realized by a contracting structure which is arranged at the right end of the upper installation base sleeve; the lower spring base is arranged in the lower installation base sleeve and the axial positioning of the lower spring base is realized by a contracting structure which is arranged at the left end of the lower installation base sleeve; the spring is arranged between the upper spring base and the lower spring base; a steering lower shaft assembly is provided with a hole close to a rubber bearing; the external round of the steering lower shaft is sleeved with the rubber sleeve at the position of the hole. The automobile energy-absorbing steering column absorbs more elastic potential energy of the spring and the dissipation energy generated by damping pores by the added spring and damping pores compared with the normal energy-absorbing column on the energy-absorption, therefore, the bumping energy exerted on the human body is reduced, thus ensuring the spring not to rebound or to slowly rebound after being compressed and avoiding the damage of rebound force on the human body.

A construction method of a limiting and self-resetting rubber-sliding seismic isolation bearing comprises the steps that (1) a steel plate is embedded in the position, where a seismic isolation cushion needs to be put, of a seismic isolation layer foundation; (2) a rubber bearing is connected to the embedded steel plate through bolts; (3) reinforced concrete check blocks are formed through pouring at the portion of the seismic isolation layer foundation according to the horizontal displacement of a seismic isolation structure under the earthquake function; (4) teflon sliding materials are pasted to the top of the rubber bearing and the lower portion of the seismic isolation structure to form sliding layers, and the sliding layers adopt a coulomb friction force model; and (5) in order to reduce horizontal displacement of the structure, shape memory alloy helical springs in a large size are arranged between the check blocks and the structure and connected to concrete through embedded parts. The shape memory alloy helical springs not only have the limiting function, but also can achieve the self-resetting function after an earthquake is over due to the shape memory effect of the material, thereby greatly reducing residual displacement of the structure and ensuring post-quake normal use of the structure.

The invention provides a carriage hinge device and a streetcar. The carriage hinge device comprises a loading frame, a lower hinge assembly and an upper hinge assembly. The lower hinge assembly comprises a first oscillating bearing, a second oscillating bearing, a first connecting plate and a second connecting plate, and the connecting plates are hinged to the loading frame through the oscillating bearings. An upper installing shaft is arranged at the upper portion of the loading frame and provided with a rubber bearing. The upper hinge assembly comprises two first connecting rods, a second connecting rod, two first installing bases and two second installing bases; one ends of the first connecting rods are hinged to the loading frame through the rubber bearing, and the other ends of the first connecting rods are hinged to the first installing bases through a third oscillating bearing; the two ends of the second connecting rod are hinged between the two second installing bases through a fourth oscillating bearing, and one of the second installing bases is fixed to the upper portion of the loading frame. The reliability of the streetcar is improved.

The invention discloses a water-lubricating rubber bearing which is prepared by taking NBR (nitrile butadiene rubber) as a matrix and adding a reinforcing agent, a vulcanizing agent, an accelerant, a lubricant, an anti-aging agent, a functional agent and the like by the steps of mixing and mould-pressing vulcanization forming. The test of a marine rubber bearing friction testing machine indicates that the rubber bearing has remarkably low friction coefficient and abrasion loss in seawater, shows excellent performance such as friction resistance, abrasion resistance, seawater corrosion resistance and the like, and can be widely applied to the fields such as bathyscaphes, underwater robots, submarine oil drilling, shipping, mining, water conservancy irrigation and national defense equipment, and the like.

An automatic and continuous rubber extracting device comprises a first grinding stone having a central opening and second grinding stone rotatable mounted against the first grinding stone. The first grinding stone is a top stone and the second grinding stone is a bottom stone. A cone is disposed within the central opening of the first grinding stone. A motor apparatus is provided for rotating the bottom stone and the cone. A screw feed is in communication with the central opening of the first grinding stone. Plant material from the screw feed is fed along the cone and between the first grinding stone and second grinding stone. The cone may be provided with grooves and recesses along an lateral surface thereof.

The invention belongs to the technical field of bridge bearings and particularly discloses a pot type rubber bearing for measuring force and adjusting height.The bearing structurally comprises a lower bearing plate provided with a pot cavity, a seismic mitigation and absorption structure composed of an upper bearing plate, a spherical crown plate and a middle steel linear plate is arranged in the pot cavity of the lower bearing plate, and the lower bearing plate is provided with adjusting holes which are communicated with the pot cavity and provided with blocking wires; sealing rings are arranged on the middle steel linear plate and the side wall of the pot cavity to form a confined space in the pot cavity; a pressure-bearing rubber cushion layer is arranged on the bottom face of the middle steel linear plate, and solid matter with a low melting point such as paraffin is arranged in a space formed by the pot cavity of the lower bearing plate and the rubber cushion layer; at least one barrel-shaped groove is formed in the side wall of the pot cavity, and pressure sensing mechanisms fixed in the barrel-shaped grooves are connected with induction signal lines capable of being connected with an external detection mechanism.Through the pot type rubber bearing for measuring force and adjusting height, change in the turn angle of a bridge due to the action of geological conditions or other stress can be realized, the height adjusting function can be achieved, and the stress of the bridge can be detected in real time.

The invention relates to a seismic isolation rubber bearing protective rubber composite with a good anti-aging performance, relating to the technical field of rubber products. The seismic isolation rubber bearing protective rubber composite comprises the following components according to parts by weight: 40-60 parts of natural rubber, 40-60 parts of ethylene propylene diene monomer, 35-45 parts of high abrasion furnace black N330, 3-8 parts of zinc oxide, 1.5-2.5 parts of stearic acid, 0.8-1.5 parts of insoluble sulfur, 0.5-3.5 parts of accelerant CZ, 1-2 parts of antiager 616, 1-2 parts of antiager phosphite ester, 5-10 parts of softener tricresyl phosphate, 5-7 parts of softener paroline 100, 3-5 parts of softener coumarone, 1-3 parts of coupling reagent Si-69, and 0.2-0.5 parts of anti-reversion agent wk-901. A rubber composite, which has good flame retardance, thermostability and relative physical and mechanical properties as well as environment-friendly and nontoxic addition agent and the anti-aging performance of which can meet the designed service life requirement of a structure, is provided for the seismic isolation rubber bearing protective rubber.

The present invention discloses a three-dimensional seismic and vibration isolator with adaptive stiffness property in both vertical and horizontal directions. The isolator comprises an upper connection plate, a middle plate, an under connection plate, a disc spring, pre-compressed helical springs, a laminated lead rubber bearing, and viscous dampers. The upper connection plate, middle connection plate and under connection plate are made of high strength low carbon steel with high loading capacity. The upper connection plate and middle plate are tightly contacted by the occlusive design, to guide the vertical motion. The vertical isolation system is made up of the disc spring, pre-compressed helical spring, and viscous damper. The horizontal isolation system comprises the laminated rubber bearing, pre-compressed helical spring and viscous damper. The invention adopts the theory of nonlinear adaptive vibration control technology and can be used to protect building structures or instruments from the seismic strikes or other environmental vibrations.