605results about How to "Large carrying capacity" patented technology

Jacket frame floating structures comprise one or more elongate vertical support columns formed of an open cross-braced jacket formwork of tubular members interconnected together and at least one cylindrical buoyancy capsule disposed in the open framework near an upper end and at least one cylindrical second buoyancy capsule near a lower end in vertically spaced relation. The buoyancy capsule(s) may be a single, or a plurality of upper and lower capsules bundled in circumferentially spaced relation with a central opening therethrough. Alternatively, a keel tank may replace the lower capsule. The buoyancy of the upper buoyancy capsule(s) is adjustably tuned to provide a buoyant force and a sufficient water plane area and moment of inertia required for stability of the floating structure, and the water mass and weight of the lower buoyancy capsule(s) or keel tank(s) is adjustably tuned to raise or lower the center of gravity of the entire mass of the floating structure with respect to its center of buoyancy according to ballast and variable or fixed loads including deck payloads to stabilize the structure. Alternatively, a keel tank may replace the lower capsule. The buoyancy of the upper buoyancy capsule(s) is adjustably tuned to provide a buoyant force and a sufficient water plane area and moment of inertia required for stability of the floating structure, and the water mass and weight of the lower buoyancy capsule(s) or keel tanks(s) is adjustably tuned to raise or lower the center of gravity of the entire mass of the floating structure with respect to its center of buoyancy according to ballast and variable or fixed loads including deck payloads, to stabilize the structure, and to compensate for different operational, environmental, survival and installation stages of the structure. The length of the upper buoyancy capsule(s) is sufficient so as to be partially submerged and allow oscillation of the trough and crest of waves within its top and bottom ends.

The invention discloses a high-conductivity non-heat-treatment type moderate-intensity aluminum alloy wire and a production method of the high-conductivity non-heat-treatment type moderate-intensity aluminum alloy wire. The high-conductivity non-heat-treatment type moderate-intensity aluminum alloy wire is produced by finely selecting ingredients and contents of aluminum alloy and conducting process control. The specific steps are as follows: selecting Fe, Si, Mg, Cu and Re with different weight percents, melting aluminum ingot with the content not more than 0.03% in a vertical melting furnace, adding alloying elements in a heat insulation furnace, stirring, refining, conducting on-the-spot contents rapid analysis, carrying out content adjustment, and standing, enabling the aluminum ingot and the alloying element into a continuous casting machine for casting, rolling to be a circular aluminum alloy rod on a continuous rolling machine, pulling the circular aluminum alloy rod to be a circular aluminum alloy wire and twisting the circular aluminum alloy wire to be a conductor for aerial power transmission and distribution. According to the application of the aluminum alloy wire and the production method of the aluminum alloy wire, the aluminum alloy wire directly replaces the generally used aluminum conductor steel reinforced and is an energy-saving, environment-friendly and novel wire.

This invention relates to a stepless meshing control clutch with large power. The clutch, super clutch, control derailleur, line clutch, control strains drive device, which are designed by the principles of meshing stepless displacement and the continuous meshing stepless locking and control, which are suitable to automobile, derailleur, impulse derailleur, automatic derailleur, machine bed and other locations needing large power.

The invention relates to the field of low-frequency or ultralow-frequency vibration isolators, in particular to a dish-shaped rubber quasi-zero stiffness vibration isolator which aims at solving the problems that an existing quasi-zero stiffness vibration isolator is not compact in structure, low in bearing capacity and not capable of satisfying the requirement for the wide range of application. The dish-shaped rubber quasi-zero stiffness vibration isolator comprises a base, an upper cover and a bearing joint. Dish-shaped rubber is connected with the inner wall of the upper cover. The dish-shaped rubber is fixedly connected with the bearing joint and the upper cover so that an elastic element with negative stiffness can be formed. A reinforcing rib is arranged in the dish-shaped rubber. The bearing joint is connected with axial rubber with positive stiffness through a pressing cover. The axial rubber is connected to the base through an adjusting sleeve. Compared with the existing quasi-zero stiffness vibration isolator, the dish-shaped rubber quasi-zero stiffness vibration isolator has the advantages of being large in bearing capacity, small in size, light in weight and the like and serving as a passive vibration isolator with the small size, the dish-shaped rubber quasi-zero stiffness vibration isolator further has the advantages of being easy to maintain, strong in reliability and the like.

An electrical machine is provided with one or more flux plates at the end of the stator and rotor cores. On the stator side, the plate is profiled to substantially fill the void between the core and the winding. The plates are ferromagnetic and form part of the main magnetic circuit. They carry maximum flux at zero and low switching frequencies and substantially no flux at the highest operating speeds.

The invention provides a novel cable used in an electromobile and a preparation method of the cable. The cable comprises an insulator and a cladding conductor. The cable is characterized in that the conductor is formed by stacking a plurality of flat square copper strips; and the insulator is a crosslinked polyolefin insulator. With the cable in the structure above, the current-carrying capacity is large, heat radiation is achieved favorably, temperature resistance level is high, and the cable can be normally used at environment temperature of 150 DED C and the bellow. The cable is good in mechanical strength, softer and convenient to install and wire, convenient to produce and high in practicality; and the installation space is saved.

The present invention provides an integrated steering drive axle for a vehicle and an electric vehicle. The integrated steering drive axle includes an integrally rigid axle beam arranged to extend between the two wheels along the lateral direction of the vehicle, and two motor drive systems mounted at the axle beam, wherein each motor drive system can independently drive a corresponding one of the two wheels to rotate and turn; wherein each motor drive system includes: a first drive electric motor, arranged separately from the corresponding wheel; a first transmission mechanism, arranged between the first drive electric motor and the corresponding wheel and used for transferring the output power of the first drive electric motor to the corresponding wheel to drive the corresponding wheel to rotate; and a second drive electric motor, used for providing steering power necessary for steering the corresponding wheel. According to the present invention, the two motor drive systems for independently driving the wheels at opposite sides are mounted at the integrated steering drive axle, thereby improving the control flexibility of the vehicle and achieving independent driving and independent steering of the wheels.

The invention discloses a quasi zero stiffness vibration isolator using multilayer squeezing type magnetic spring and oscillating bars. The vibration isolator comprises a main shaft, guiding shafts, the oscillating bars and a multiplayer structure; the multilayer structure comprises an upper roof arranged from top to bottom in sequence, an upper end cover, a negative stiffness unit, a lower end cover, positive stiffness unit and a bottom plate; the main shaft is a center shaft with multilayer structure; the guiding shafts and the oscillating bars are multiple, and are all arranged around the main shaft at fixing intervals; the structure is compact, and has more bearing ability under relatively small size. In addition, the negative stiffness unit and the positive stiffness unit are connected in parallel by the vibration isolator using the principle of magnetic negative stiffness; the vibration isolator has the characteristics of high static stiffness and low dynamic stiffness, the inherent frequency of the vibration isolator can be efficiently reduced, the vibration isolation frequency band is widened, and the vibration isolator is suitable for low frequency vibration isolation; thenegative stiffness unit is in the form of multilayer squeezing type magnetic spring, the stronger magnetic induction intensity can be produced, the negative stiffness of magnetic spring is increased,the negative stiffness unit is suitable for high loading occasion, and a wide range of applications is met.

The invention relates to an epoxy-pouring full-insulation solid isolating switch, which comprises an isolation body, a grounded contact, an isolation contact, a middle contact, an isolation moving contact, a driving screw rod, a fixed nut and a driving gear part, wherein the grounded contact and the isolation contact are arranged at two ends of the isolation body respectively, the middle part of the isolation body is provided with the middle contact, the upper end of the isolation contact is connected with a bus contact through a bus-bar, the bus contact is arranged on the top of the isolation body, and the isolation moving contact is always contacted with the middle contact through a watch chain sensing finger. The isolation switch slides between two positions of the middle contact and the isolation contact or the middle contact and the grounded contact to form the conduction or the isolation grounding of the isolating switch. The entire isolating switch is poured into a fully-sealed integral structure with epoxy resin.

The present invention relates, generally, to methods for manufacturing metal/polymer/ceramic carbon nanotube composite materials, including additive manufacturing techniques, more particularly, to a method for manufacturing metal-carbon nanotube composite comprising adding metal layer to nanotubes to make a nano-composite.

The invention discloses a cable low heat resistance protection medium with high water content, high stability, low heat resistance, environment protection and effective prevention of termite damage, and a preparation method thereof. The filling medium is prepared by mixing bentonite, fine quartz sand, water and cement, and using a small amount of tartaric acid and sodium sesquicarbonate as additives. As accounted by 100% of mass fraction, the filling medium is preferably prepared by 54%-57% of bentonite, 24%-28% of fine quartz sand, 14%-16% of water, 2.5-3.5% of cement, 0.24%-0.26% of tartaric acid and 0.24%-0.26% of sodium sesquicarbonate. Before condensation, the filling medium has the advantages of better initial liquidity, moderate alkalinity, low bleeding rate and the like. After condensation, compared with traditional material, the filling medium has the advantages of high water content and high stability, and enables the surroundings of the cable to maintain low heat resistance for long term, the heat resistance is smaller than that of soil, and the hardness is higher, therefore the current carrying amount of the cable is improved, or the running temperature of the cable conductor is reduced.

The invention relates to a 400Hz in-parallel balanced structure cable for ships and a manufacture method of the 400Hz in-parallel balanced structure cable. The center of a neutral wire conductor is provided with a steel wire stiffening member, wherein a neutral wire insulating layer extrudes outside the steel wire stiffening member; the periphery of a neutral insulated wire core is evenly distributed with six phase line insulated wire cores which are completely the same as one another and are sequentially tangent with one another, the two phase line insulated wire cores which are centro-symmetric with each other are taken as a mutual in-parallel set, gaps which are far away from the neutral insulated wire core among the two adjoining phase line insulated wire cores are respectively embedded with a control wire core set, and each control wire core set comprises three control wire cores which are twisted with one another and a copper braid shielding layer coated outside the control wire cores; and each control wire core set and each phase line insulated wire core are respectively and internally tangent with the same circle and are jointly twisted with the neutral insulated wire cores into a cable core, the periphery of the cable core is wound with a glass fiber tape, and the periphery of the glass fiber tape is extruded with an internal protecting bush and an external protecting bush. The cable simultaneously has the functions of a power cable and a control cable, and is large in carrying capacity, balanced in structure, and small in outer diameter and bending radius.

The invention provides a novel energy-saving radial sliding bearing, which is formed by matching a shaft and a bearing sleeve hole or bearing block hole. A bearing sleeve hole wall or bearing block hole wall at an inlet region of a convergent wedge-shaped pore of the bearing is coated by a thin layer material, and the surface-treated bearing sleeve hole wall or bearing block hole wall is paired with the shaft; a gap formed between the bearing sleeve hole wall or bearing block hole wall and the shaft is filled with lubricating oil. The novel energy-saving radial sliding bearing designed by adopting an interface slip technology and adopting a surface coating method has the advantages of great carrying capacity, low coefficient of friction and excellent energy-saving performance. Compared with the traditional interface-slip-free radial sliding bearing, the bearing provided by the invention has the advantages of obviously improved carrying capacity, and obviously improved antifriction and energy-saving performances, thus having an important application value.

The invention relates to a method for designing graduation of a dense-framework type asphalt mixture, and belongs to a method for designing the graduation of a mixture. The method comprises the following: step one, determining the volume filling rate V0 of coarsest aggregate of which the diameter is D0 in the asphalt mixture when the coarsest aggregate solely forms the mixture; step two, after the sole filling rate of the coarsest aggregate is determined, according to V1=V0/((1+d1/D0)), calculating the volume filling rate of the coarsest aggregate in a system of coarse and fine aggregates of which the diameters are D0 and d1; step three, according to the formula, after the V1 of the D0 is deducted, calculating the volume filling rate of the coarsest aggregate in the system of the coarse and fine aggregates of which the diameters are d1 and d2; and step four, repeating the step two and the step three till the last grade of the fine aggregate of the asphalt mixture. The method provides reasonable design steps for the graduation of the dense-framework type asphalt mixture, and is an important technical measure for improving the high-temperature property of asphalt pavement.

An improvement of three cores high voltage lifting cable of high-rise building is adopting single core insulating cables and between them filled by three carrying steel cores with insulating coat of arc sector section. They cross into cable and outside is pricked by high-intensity strap. The arc sector bearing touches with closed cable core with large acreage and this enhances the friction of them greatly. For the crossing and strap, it increases the friction between them and greatly enhances the whole tensile strength of cable to endure more strength and is suit for lifting 150 meters or higher construction. It also increases current capacity of cable about 10-30% and reduces the weight of cable about 20-30% to cut down the cost. The arc sector bearing gives more little side pressure to cable and the cable is safe with good reliability. The absolute structure of three cores bearing reduces the difficulty of production.

The invention belongs to the field of lifting equipment, and in particular relates to a fulcrum fixed multi-surface over-constrained radial scissor type lifting mechanism. W-shaped connecting pieces are respectively fixed on the upper plane of a base and the lower surface of a bearing platform according to vertex positions of regular triangles; three groups of scissor type trusses are vertical to the base; the bottom ends and the top ends of the scissor type trusses are connected with the W-shaped connecting pieces through a bottom rotation pair respectively; an inclined angle of 120 DEG is formed by planes where every two groups of scissor type trusses are positioned; star-shaped connecting pieces are arranged among the three groups of scissor type trusses and among connecting rods with the same height on each layer; and a driving device is arranged at the central position of the base. Compared with a parallel type scissoring machine in the prior art, the invention has the advantages that: the mechanism has a stable structure, the weight of the mechanism can be reduced without the variation of intensity, the rigidity is improved, and high loads can be born, so that the maximum operation height of a lifting platform is increased; and the mechanism has the characteristics of high foldable ratio, compact structure, low dead weight, high bearing capacity, high throughput capacity and high operability.

The invention discloses a rubbish transportation and treating vehicle in the technical field of rubbish collectors. The rubbish transportation and treating vehicle comprises a rubbish bin, a sewage collecting box is arranged at the bottom of the rubbish bin, a compression hydraulic cylinder is arranged on the right wall of an inner cavity of the rubbish bin, the power output end of the left side of the compression hydraulic cylinder is connected with a compression plate, a movable door plate is connected to the top of the left wall of the rubbish bin through a pin shaft, and locking blocks are arranged on the left walls of the rubbish bin and the movable door plate; and locking pins are inserted into the locking blocks, a sewage drainage hole is communicated with the sewage collecting box, and a rubbish collecting opening is formed in the top of the right wall of the rubbish box. According to the rubbish transportation and treating vehicle, rubbish is directly fed into the rubbish bin through a rubbish shovel, the compression hydraulic cylinder pushes the compression plate to extrude the rubbish, the rubbish bearing amount is larger, the rubbish shovel and the side door rotate to close the rubbish bin after the rubbish shovel is utilized, smell spreading is prevented, the rubbish sewage is collected and treated in a concentrated manner in the sewage collecting box, and environment pollution is avoided.

The invention relates to a circular shielding insulating bus, which has the advantages of high carrying capacity, good heat dissipation, low temperature rise, strong electric insulation performance, no environmental disturbance and high reliability. The circular shielding insulating bus comprises a circular conductor and an outer layer sheath, wherein a plurality of insulating shielding layers are arranged between the circular conductor and the outer layer sheath and consist of insulating layers and shielding layers; each insulating layer comprises two polytetrafluoroethylene layers and a thermal shrinkage sheath from inside to outside; and silicone oil is uniformly brushed between the polytetrafluoroethylene and the thermal shrinkage sheath.

The invention provides an inorganic zeolite powder containing nano zinc oxide for suppression of sulfate reducing bacteria and a preparation method, which relates to an antibacterial agent and a preparation method. The invention solves the problem that the prior organic antibacterial agent has poor security, poor heat-resistant property, easy decomposition and short service life. According to quality percentage, the invention is made of the zeolite of 50-99.99 percent and the nano zinc oxide solid of 0.01-50 percent. The preparation method is as follows: 1. Preparation of the nano zinc oxide; 2. Mixing and stirring; 3. Extraction filtration, washing and drying; 4. Grinding, calcinations and grinding; therefore, the inorganic zeolite powder containing nano zinc oxide for suppression of sulfate reducing bacteria can be prepared well. With solid-phase synthesis, the invention adopts the nano or submicron zeolite, not only effectively increasing the amount of the loaded nano zinc oxide, but also improving the sterilization effect of the antimicrobial agent.

A hybrid rotary drill having at least one fixed blade and at least one rolling cutter assembly is configured for reverse fluid flow from the annulus, through junk slots and into a fluid pathway system located substantially centrally to the bit body. The fluid pathway system may be located underneath a portion of the at least one fixed blade.

There is provided an electron source substrate capable of, even with occurrence of discharge between an anode and an electron-emitting device, avoiding the negative effect on other electron-emitting devices. The electron source substrate has row-directional wiring laid in a row direction; column-directional wiring laid in a column direction so as to intersect with the row-directional wiring; and an electron-emitting device one end of which is coupled to the row-directional wiring, the other end of which is coupled through a resistor element to the column-directional wiring, and to which a predetermined drive voltage is supplied through the wiring, and is configured so that a wiring resistance of the column-directional wiring is higher than a wiring resistance of the row-directional wiring.

The invention discloses an efficient environment-friendly conditioning fluid for titanium and titanium alloy anodized repair members, which can remove oxidation films and can activate the surface of a workpiece so as to lead anodes of repair members or film-free workpieces to be oxidized and coated with films. The conditioning fluid contains 20-30wt% of strong base, 2-20wt% of antisludging agents, 2-20wt% of dispersing agents and 0.05-1wt% of activating agents, and the balance being water. Temperature of workpeices in the conditioning fluid ranges from 50 DEG C to 80 DEG C, and the processingtime is 1-30min. Stability of bath solution is good, bearing capacity is large, maintenance is easy, and no environment pollution can be caused. Mechanical property of the processed titanium and titanium alloy cannot be reduced, and quality of oxidation films can be ensured.

The invention discloses a four-band shunt-wound high-temperature superconducting double-pie coil and a winding die and a winding method thereof. The four-band shunt-wound high-temperature superconducting double-pie coil consists two sets of coils and a pie-to-pie support gasket (5), wherein each set of coils comprises a positive pie and a negative pie which are wound by four shunt-wound superconducting bands (1-4); the high-temperature superconducting double-pie coil is divided into the positive pie and the negative pie by the pie-to-pie support gasket (5). Two transposition ports are formed in a position of 0 degree and a position of 180 degrees along the peripheral direction of the pie-to-pie support gasket (5); transposition is performed on the positive-pie coils and the negative-pie coils for two times at the two transposition ports. The winding die for the coil consists of a main shaft (6), a first template (7), a second template (8), a positioning bolt (9), a first pressing plate (10), a second pressing plate (11), a first locknut (12), a second locknut (13) and temporary separation blades (14). The outer side of the first template (6) and the outer side of the second template (7) are respectively provided with a small groove along the peripheral direction to clamp the pie-to-pie support gasket (5) in the middle; the first template (7) and the second template (8) are pressed by the first pressing plate (10) and the second pressing plate (11).