38results about How to "Meet the carrying capacity" patented technology

The invention discloses a side wall structure of a railway vehicle. The side wall structure comprises a plurality of side wall profiles and an upper edge beam profile arranged above the side wall profile, wherein the distance between the inner and outer contours of the upper edge beam profile at a transition between the roof and the side wall structure is greater than the distances between the inner and outer contours of two sides. The side wall structure of the railway vehicle meets the requirements on the strength, the rigidity and the fatigue of the vehicle, and has the advantages of light weight, high strength, production process simplification, attractive appearance and the like.

A paired counterweights of a crankshaft have projected inner surfaces which protrude toward each other defining a given space therebetween. A plurality of links are arranged to convert a reciprocating motion of a piston to a rotational motion of the crankshaft. One of the links is pivotally connected to other links through link connecting portions and swingably disposed on a crank pin of the crankshaft so that upon rotation of the crankshaft, a peripheral portion of the link passes through the given space. At least one of the link connecting portions is placed within an imaginary circle which would be described by a radially innermost part of the projected inner surfaces of the paired counterweights when the paired counterweights turn about an axis of the crank pin.

The invention discloses a vibration isolator. The vibration isolator comprises a base, a sealing cover, a mandrel, a cylindrical spring, a first metal wire net pad and a second metal wire net pad, wherein the sealing cover covers the base to form a cavity; the mandrel is arranged in the cavity for dividing the cavity into a first cavity body and a second cavity body; the first metal wire net pad sleeves the mandrel, and is arranged in the first cavity body; the second metal wire net pad sleeves the mandrel, and is arranged in the second cavitybody; the cylindrical spring sleeves the second metal wire net pad, and is arranged in the first cavitybody; one end of the cylindrical spring butts against the sealing cover, and the other end butts against the base; and the end, far awayfrom the base, of the mandrel is used for being connected with vibration isolated equipment. The vibration isolator forms an elastic buffer vibration isolation structure through a mode of combining the cylindrical springwith the first metal wire net pad and the second metal wire net pad, so that the needed bearing capacity is achieved, and the low-frequency damping purpose can be achieved.

The invention provides a folding-type airport emergency repair and construction composite combination way panel and a manufacturing method thereof. The composite combination way panel is composed of asingle board and a connecting cloth. The veneer is a rectangular plate, which is laid side by side on the upper and lower surfaces of the connecting cloth, and the veneers on the upper and lower surfaces are symmetrically arranged; The veneer and the connecting cloth are bonded together by epoxy resin; Each veneer is made of composite fiber material, glass fiber cloth, ultra-high molecular weightpolyethylene fiber cloth and carbon fiber cloth. The composite pavement slab is light in material, the density is only 1.15-1.17, and the density is less than one sixth of ordinary steel plate. The bending strength of the panel is higher than 280MPa and the impact toughness is higher than 240K j/m2. The strength of the panel can satisfy the bearing capacity of the third generation fighter and allkinds of armed helicopters. The panel has the advantages of high bending strength, strong impact toughness, light material quality, large area, good anti-aging durability, simple and convenient repair pavement, time-saving and high efficiency of emergency repair, and can be used repeatedly.

The invention provides a special roller conveyor for long-material goods, which consists of a frame, a motor, a motor transmission device, a roller and a roller transmission device, and a roller shaft is installed on the frame, and the roller shaft Both ends of the roller are provided with internal threads, which are respectively connected to the frame through bolts; the roller shaft is equipped with a bearing, and the bearing is wrapped with a roller; the transmission device drives the roller through the sprocket arranged on the roller; It also includes a steel platform fixed on the roller conveyor and a pallet of goods placed on the rollers of the roller conveyor. In the special roller conveyor for long-material goods of the present invention, a steel platform and a cargo pallet are added to the roller conveyor, so that the hand-push hydraulic vehicle can directly pick up the goods on the conveyor, that is, the set cargo pallet cooperates with the steel platform, and the hand-push The hydraulic truck can directly take out the cargo pallet from the conveyor, without the need for various power forklifts and professional forklift drivers, which improves production efficiency and reduces labor costs.

The invention discloses a multi-degree-of-freedom light single-leg mechanism. The multi-degree-of-freedom light single-leg mechanism comprises a hip joint module, a knee joint module, an ankle joint module, a shin joint and a foot end; the hip joint module, the knee joint module, the ankle joint module, the shin joint and the foot end are connected in sequence; the whole single-leg design mode disclosed by the invention greatly improves the adaptability of the robot legs to complex terrains, improves the dynamic and static stability of a robot, and also improves the integral bearing capacity and control precision of the robot; the single leg with multiple degrees of freedom has flexible movement and light weight; the installation position of a driving motor is closer to the body, so that the problem of high rotational inertia easily generated by a tail end joint is solved, and the movement of the driving mechanism is facilitated; and the single leg has a large movement working space range in the aspects of mechanism movement and power.

Disclosed herewith a prefabricated bathroom and a construction method and an installation method thereof. The prefabricated bathroom includes a bottom unit (11), multiple wall units (12) and a top plate unit (13). One of the wall units (12) is a structural wall (14), which is provided with a recessed top region (141) reserved for later pouring, a middle full-prefabricated structural wall body (142), and a recessed bottom region (143) reserved for later pouring. Top exposed reserve bars (144) of the prefabricated bathroom of a floor are inserted into the recessed bottom region (143) of the prefabricated bathroom of a next floor, and connected with bottom exposed reserve bars (146) thereof, so that the prefabricated bathroom of said floor can be connected with that of said next floor through pouring concrete in the recessed top region (141) and the recessed bottom region (143).

The invention relates to an efficient hematopoietic stem cell culture kit which comprises a bearing box, a sealing cover, a bearing inner cover, a bearing frame, a culture dish, a metering pump, flowguide pipes, a flow distributing pipe, a temperature adjusting device and a control circuit. The bearing box is hinged to the sealing cover each other, the bearing inner cover is embedded into the upper end surface of the bearing box, the bearing frame is embedded into the bearing box, the culture dish is embedded into the bearing frame, the metering pump is mounted on the upper surface of the bearing inner cover, the tail end of the metering pump is communicated with the front end of the flow distributing pipe each other through a control valve, the front end of the flow distributing pipe iscommunicated with the tail end of at least one flow guide pipe through a control valve, and the control circuit is embedded into the outer side surface of the bearing box. According to the kit, on onehand, adjusting flexibility of hematopoietic stem cell culture environments and running stability can be effectively improved, on the other hand, reagent adding flexibility and reagent adding controlaccuracy can be effectively improved in the culture process of hematopoietic stem cells, easily caused unstable culture temperature and pollution of the reagent caused by outside environments can beeffectively avoided when the reagent is added.

The invention provides a double-fixed type heavy balance shaft assembly, comprising supports which are symmetrically arranged, wherein a semi-shaft passes through a support and is provided with a bearing hub, the symmetrical supports are connected into a whole through a connecting plate below the supports and are fixed through bolts, a groove is longitudinally formed below each support, a lug boss, corresponding to each groove, is arranged on the connecting plate, and the groove and the lug boss are in interference fit and are finally fixed and compressed through bolts. According to the invention, because the longitudinal grooves below the supports and the corresponding lug bosses on the connecting plate are longitudinally arranged, the displacement of the connecting plate is prevented, and the breakage of the bolts is further prevented; by virtue of the limiting and fixing effects of the grooves and the lug bosses as well as the fixing and compressing effects of the bolts, a double-fixed type structure is formed, thereby meeting the carrying capacity and ensuring the reliable stability; and meanwhile, the grooves and the lug bosses are in interference fit to play a positioning role and are formed into an organic whole through interference fit, thereby meeting the performance and also facilitating installation.

The invention provides a pantograph slide plate with a conductive fiber bundle structure, the pantograph slide plate comprises a slide plate base body and a conductive fiber bundle arranged on the slide plate base body, the conductive fiber bundle comprises a metal cylinder and a carbon fiber bundle fixed in the metal cylinder, the outer wall of the metal cylinder is provided with an external thread, and the plate surface of the slide plate base body is provided with a plurality of screw holes. The screw holes are through holes, internal threads of the screw holes are matched with external threads of the metal cylinder, a plurality of cleaning holes are further formed in the plate surface of the sliding plate base body, the cleaning holes are communicated with cleaning hole channels formed in the plate, and the cleaning hole channels are connected with an air supply port in the plate surface of the sliding plate base body. By adjusting the height of the conductive fiber, the contact surface of the conductive fiber at the seriously worn position is recovered to be in a flat state, and meanwhile, abrasive dust and dust in gaps of fiber bundles can be conveniently cleaned.