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

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 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.

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 the technical field of tactical missile shell section structures, in particular to a stringer housing which comprises a housing and a stringer, wherein the housing is rotary and comprises a covering skin and end frames located at both ends of the covering skin and integrally formed together with the covering skin; the stringer is connected with an inner wall of the housing in an axial direction of the housing. The housing of the invention is a rotary structure; the end frames and the covering skin form an integrated structure which has no projecting structure, can be completed by lathing, greatly shortens the processing cycle, and greatly improves the processing efficiency; positions of an upper end frame and a lower end frame are designed according to the size of an interface; the positions of the end frame and the covering skin adopt smooth transition, can be completed by lathing, greatly improve the processing efficiency, and reduce stress concentration. The stringer housing provided by the invention reduces the assembling difficulty and strength, effectively improves the assembling efficiency, also effectively reduces the weight of the missile structure, and improves the missile performance; the housing has high form-position tolerance grade, ensures aerodynamic shape of the missile, has attractive appearance, has no obvious splicing joints, and reduces the probability of appearance of rework events caused by appearance defects.

The invention discloses a fast target positioning method based on ground object coordinate information, which determines the attitude deviation of the satellite according to the position information of the reference point and the orbit information of the satellite; and determines the attitude information of the satellite based on the attitude deviation Perform deviation compensation; determine the position information of the target point according to the compensated attitude information. The invention also discloses a device for quickly locating a target based on ground object coordinate information, a satellite carrying device and a storage medium.

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 a detachable multi-pot type pitaya pot holder and a pitaya cultivation method. The pot holder comprises a pot seat frame, a column and a support rod. The pot seat frame includes a top ring, a bottom ring, a vertical column, a support foot and an angle bar. and the seat frame nut, the column is arranged between the top ring and the bottom ring, the first end of the column is provided with a supporting foot, the second end is provided with an angle rod, the seat frame nut is arranged at the second end of the angle rod; the column is arranged on the basin seat frame Inside, a first link is arranged in the middle of the column, a third link is arranged at the second end, a second link is arranged between the first link and the third link, and both ends of the first link are connected to the second link. A column nut is arranged in the center; and the support rod includes a long support rod and a short support rod, the long support rod is respectively connected to the column nut and the seat frame nut in the center of the second connecting rod, and the short support rod is respectively connected to the two ends of the first connecting rod. Seat nut. The invention is not only practical and beautiful, but also can be disassembled and installed freely, and effectively solves the technical problem of the greenhouse potted frame structure of dragon fruit grown in the south and the north.

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 discloses a reinforcing structure of an existing structural beam. The reinforcing structure of the existing structural beam comprises the structural beam. Two ends of the structural beam are respectively connected with a structure column, an outer wrapping steel sleeve is arranged on the structural beam, multiple reinforcing ribs are arranged between the bottom of the structural beam and the outer wrapping steel sleeve, and the end portions of the reinforcing ribs are embedded in the structure columns. Two sides of the outer wrapping steel sleeve are provided with grouting tunnels, and angle steels are symmetrically arranged on the two sides of the outer wrapping steel sleeve and the beam plate junction. The vertical portions of the angle steels are connected with the structural beam through anchor bolts, and the horizontal portions are provided with high-strength bolts which penetrate through the beam plate. A connecting hoop plate is arranged between the tops of every two high-strength bolts which are located on the same plane, and the position, corresponds to the structural beam, between each connecting plate and the beam plate is provided with a hogging moment steel plate. Due to the fact that the existing structural beam increases the section and is provided with the outer wrapping steel sleeve, the anti-bending and anti-shearing capability of the existing structural beam is greatly improved, the bearing capability for the integrated extra-large load of the applied local portion is satisfied, and the hidden danger after completion and the economic loss due to removing and reconstruction are effectively avoided.

The invention belongs to the related field of spilt oil recovery vessel accessory equipment and discloses a rotary arm rotary device used for a brushing belt built-in type spilt oil recovery vessel. The rotary arm rotary device comprises a rotary base, a rotary central shaft, a rotary arm, a deep groove ball bearing, a thrust conical bearing and double rotary oil cylinders. The front end of the rotary base is provided with an upper cover plate and a lower cover plate which are provided with an upper locking cap and a lower locking cap. The rotary central shaft is mounted between the upper locking cap and the lower locking cap. An upper shaft sleeve of the rotary central shaft is fixed to the rotary arm, and a lower shaft sleeve of the rotary central shaft is fixedly connected with a bearing seat and then fixed to a lower plate of the rotary arm. The deep groove ball bearing and the thrust conical bearing are arranged in the mode that inner rings and shaft washers of the deep groove ball bearing and the thrust conical bearing and the bearing seat are mounted in an interference fit mode. The two oil cylinders are in parallel connection to achieve driving on the rotary arm. Through the rotary arm rotary device, axis perpendicularity can be further ensured while friction in the rotating process is effectively reduced, mechanical property requirements are fully met, and meanwhile, the rotary arm rotary device has the advantages of being stable in operation, high in bearing capacity, easy to control and the like.

The invention discloses a polyethylene insulated fire-resistant computer cable, which relates to the technical field of cables. The double-layer synthetic mica refractory layer is sleeved on the outer surface of the tinned annealed copper conductor, the silicone rubber insulation is sleeved on the outer surface of the double-layer synthetic mica refractory layer, and the woven glass fiber yarn is sleeved on the outer surface of the silicone rubber insulation. Tin-soft copper conductor, double-layer synthetic mica refractory layer, silicone rubber insulation and braided glass fiber yarn are set in two inside the metal / fiber composite braided sub-shield, which solves its poor fire resistance, high temperature resistance and anti-interference , the accuracy and stability of signal transmission are poor, and the anti-pull ability and bending flexibility are poor, which affects the use requirements, making it have good fire resistance, high temperature resistance, and anti-interference performance. It can ensure the accuracy of signal transmission. It also has high tensile and dragging ability and bending flexibility. It can meet the requirements of various cable laying and installation, bearing capacity, fire performance and signal transmission.

The invention provides a foldable airport emergency construction composite material composite road panel and a manufacturing method thereof. The composite material composite road panel is composed of a veneer and a connecting cloth; the veneer is a rectangular board, which is laid side by side on the upper and lower sides of the connecting cloth, and the veneers on the upper and lower sides are arranged symmetrically; between the veneer and the connecting cloth Bonded together by epoxy resin; each veneer is made of composite fiber materials, such as glass fiber cloth, ultra-high molecular weight polyethylene fiber cloth and carbon fiber cloth. The material of the combined road panel is light, the density is only between 1.15 and 1.17, and the density is less than one-sixth of the ordinary steel plate. High bending strength of the panel > 280MPa, strong impact toughness > 240K j / m 2 , its strength can meet the carrying capacity of three generations of fighter jets and various types of armed helicopters. This panel has the advantages of high bending strength, strong impact resistance, light material, large area, good aging resistance and durability, easy repair and paving, time-saving and efficient repair, and can be reused.