32results about How to "Address structural strength" patented technology

The present invention relates to a five-axis linkage 3 D printer mechanism. The five-axis linkage 3 D printer mechanism is characterized in that: two-axis printing of a lower dynamic platform can be achieved by two screw rod drivers, a parallel mechanism is used to achieve three-axis printing of an upper dynamic platform, and the five-axis linkage 3 D printer mechanism mainly comprises a machine body system, a control system, a printing system and a display system. The 3D printer is on the basis of digital model files, the digital model files are sliced, a special wax material, a powdered metal or a plastic material and other adhesive materials is used, x, y and z-axis mobile printing can be achieved by an extrusion head controlled by the parallel mechanism, the two screw rod drivers control the lower dynamic platform to achieve v-axis rotating printing, and then a three-dimensional object is produced by use of the layer-by-layer adhesive materials to achieve five-axis linkage printing of a three-dimensional entity.

The invention discloses a railway vehicle and an underframe structure thereof. The chassis structure comprises underframe edge beams, a floor, an end beam, a first sleeper beam, and a second sleeper beam, wherein the underframe edge beams are parallelly and oppositely arranged, and the end beam are arranged at one end of the structure. The upper portion of the middle part of the underframe edge beams is provided with a middle door hole, and the lower portion of the middle part of the underframe edge beams is provided with a mounting cavity, wherein the mounting cavity is used for mounting mobile pedals. A stair reinforcing device comprises cross beams, a short longitudinal beam and a long longitudinal beam, wherein the cross beams are arranged on the two sides of the middle door hole and used for connecting the two oppositely-arranged underframe edge beams, and the upper portions of the cross beams are in plug-in connection with the floor. The short longitudinal beam is connected to the cross beams at two sides, the long longitudinal beam is connected with the first sleeper beam and the cross beam corresponding to one side of the first sleeper beam, and the distance from the firstsleeper beam to the cross beam corresponding to one side of the first sleeper beam is not greater than that from the second sleeper beam to the cross beam corresponding to one side of the second sleeper beam. According to the railway vehicle and the underframe structure thereof, due to the force transfer between the long longitudinal beam, the cross beams and the short longitudinal beam, the bearing capacity, especially anti-longitudinal impact capacity, of underframe edge beams at the portion of the middle door hole is improved, thus meeting collision requirements when accidental collision occurs between vehicles; in addition, the problem of insufficient strength and rigidity in a middle-arranged vehicle door and a stair rear underframe structure can be solved.

The invention relates to the field of low-temperature fluid flow experiments and discloses a visual experimental device for low-temperature fluid condensation and flow. The visual experimental devicecomprises a loop heat pipe, a refrigerator in contact with a condenser and a heat insulation system surrounding at least part of the loop heat pipe and at least part of the refrigerator, wherein the loop heat pipe comprises the condenser and an evaporator which are in closed connection to form a loop; at least part of the heat insulation system is pervious to light the condenser comprises a bottomplate and a photo-permeable cover plate, channels are formed in the bottom plate, the photo-permeable cover plate is attached to the bottom plate and defines a condensation channel together with thechannels in the bottom plate. The visual experimental device for low-temperature fluid condensation and flow can visualize the condensation and flow process of low-temperature fluid, and the structural strength problem caused by cold and heat shock, large difference in thermal expansion coefficients of structural members and the like is also solved.

The invention discloses a damp-proof sound-absorbing building envelope with an air layer. The damp-proof sound-absorbing building envelope is characterized by comprising an exterior trimming panel, a heat-insulating waterproof layer, an outer layer flame-retardant sound-absorbing heat-insulating material layer, a vapor blocking layer, an inner layer flame-retardant sound-absorbing heat-insulating material layer and an interior trimming panel which are all arranged in sequence from the outside to the inside of a room. The air layer which is sealed relatively is formed between the exterior trimming panel and the heat-insulating waterproof layer. By the arrangement of the air layer and the matched design of the heat-insulating waterproof layer, the inner layer flame-retardant sound-absorbing heat-insulating material layer, the outer layer flame-retardant sound-absorbing heat-insulating material layer and the vapor blocking layer, humidity accumulation in a heat-insulating material can be effectively avoided, and the problem that the durability, structural strength and heat insulation of a heat insulation system are affected due to poor moisture penetrability in the heat insulation system is solved. The damp-proof sound-absorbing building envelope is clear in hierarchical structure and is good in heat insulation, energy saving performance, moisture penetrability, damp prevention and sound absorption, and the shortcoming that the building porous material external building envelope is internally easily affected with damp, condensation and mold and is non-breathable and poor in sound absorption can be fundamentally overcome.

The invention provides a rotor structure and a motor, and the rotor structure comprises a body structure which comprises an outer iron core, a magnet, and a supporting frame, wherein the supporting frame is provided with a through hole and a plurality of first connecting holes formed in the direction surrounding the preset axis at intervals, and the plurality of first connecting holes, the outer iron core and the magnet are arranged at intervals; an inner iron core used for being connected with a shaft of the motor, wherein the inner iron core is installed in the through hole and is spaced from the body structure, and the inner iron core is provided with a plurality of second connecting holes which are formed at intervals in the direction surrounding the preset axis; a damping piece which is made of a deformable material, and comprises a damping part located in a gap between the inner iron core and the body structure, wherein the damping piece comprises a first connecting part and a second connecting part, the first connecting part is arranged in the first connecting hole in a penetrating mode, and the second connecting part is arranged in the second connecting hole in a penetrating mode. According to the rotor structure, the problem that the damping effect and the structural strength of a rotor structure in the prior art are difficult to consider is solved.

The invention discloses a microwave-assisted efficient construction method for a high-strength interface of a carbon-based reinforcement/resin composite material, and belongs to the field of compositematerials. The method comprises the following step: modifying a carbon-based reinforcement by nanoparticles through a synergistic effect of physical coating and chemical grafting so as to form an interface (a cage-shaped interface structure) coated with a cage-shaped structure carbon source material shell. Based on the microwave irradiation activation principle, the activation of the carbon-basedreinforcement and the uniform self-assembly of the nanoparticles are realized by adjusting the ratio of the transition metal catalyst to the carbon source material to the nanoparticles. Compared withcomposite material traditional interface enhancement, the method of the invention is more efficient and faster, realizes the nanometer reinforcement of the interface of the carbon-based reinforcement/resin composite material, solves the problem that the structural integrity and strength of the carbon-based reinforcement are damaged by discharging and sparking of the carbon-based reinforcement ina microwave field, and has important significance in preparing the high-performance carbon-based reinforcement/resin composite material; and the high-strength interface can be applied to the high-techfields of composite material pressure containers, aerospace crafts and the like.

The invention provides a choke plug stripping machine, comprising a choke plug chuck, a rotary shaft, a stripping cutting head, a circular mesh bracket and a bearing seat, wherein the circular mesh bracket supports a circular mesh of which the choke plug needs to be dismounted; the rotary shaft is arranged on the bearing seat, and is connected with the choke plug chuck; the choke plug chuck can clamp the inner circular surface of the choke plug, and drives the choke plug to rotate; the stripping cutting head can clamp the axial inner side of the choke plug along a nickel mesh, and applies an action force on the choke plug in the axial direction of the circular mesh. According to the choke plug stripping machine, the inner side of the circular mesh is clamped through the stripping cutting head, so that the 360-degree rotation of the choke plug is realized by utilization of the choke plug chuck; the stripping cutting head continuously applies a stripping force on different circumferential parts at the inner side of the choke plug, so that the choke plug is stripped from the circular mesh.

The invention provides a superconducting power storage device and a control method thereof. The superconducting power storage device comprises a first casing body, a superconducting coil and a superconducting generator. The superconducting part of the superconducting generator and the superconducting coil are arranged in the superconducting environment in the first casing body. The power output end of the superconducting generator is electrically connected with the superconducting coil. The superconducting coil and the superconducting part of the superconducting generator are arranged in the superconducting environment of the first casing body, so that both the superconducting generator and the superconducting coil are in a superconducting state. The power output end of the superconductinggenerator is electrically connected with the superconducting coil. The superconducting generator in the superconducting state is driven by a drive device to generate power, and the generated power isstored in the superconducting coil. The superconducting generator and the superconducting coil are in a superconducting state, so that the power storage density of the superconducting coil is not limited. The power storage efficiency of the superconducting power storage device is improved.

The invention discloses a stamping die for metal product casting. The stamping die structurally comprises an upper die base, an ejection male die, a male die plate and a spring plunger, wherein the ejection male die is arranged in the upper die base, the male die plate is correspondingly arranged at the top of the ejection male die, and the side edge of the male die plate is connected with the spring plunger. The stamping die has the beneficial effects that sound waves generated by vibration are dispersed through a part pressing device arranged in the stamping die, a stable transmission stateof the sound waves in air is broken, resonance cannot be formed, meanwhile, the sound waves are absorbed and prevented from being continuously transmitted outwards, and resonance caused by the fact that the sound waves are transmitted to a structure is prevented, so that the influence of high-frequency vibration on the structural strength is avoided.

The invention relates to an automatic rainwater collection and utilization technique, in particular to an urban road rainwater utilization technique, involving a vehicle road, a bicycle lane and a sidewalk. A green isolation belt is arranged between the vehicle road and the bicycle lane; a rainwater pipe is arranged below the vehicle road; a water supply pipe is arranged below the sidewalk. The urban road rainwater utilization technique is characterized in that a storage adjusting chamber is arranged below the green isolation belt; the storage adjusting chamber has a bottom water channel, support plates arranged on two sides of the bottom water channel, and a porous partition plate supported by the support plates on the two sides. It is intended herein that the storage adjusting chamber isarranged below the green isolation belt to allow municipal works to spray less water to green isolating belts in the roads during actual operation, the green isolation belts are kept moist throughoutthe year and are never frozen in winter, and the whole structure is simple.

The invention provides a novel safety structure for a power battery module. The safety structure comprises a protected circuit and bimetallic strips, wherein the bimetallic strips are connected in the protected circuit and serve as conducting elements; the bimetallic strips are provided with strength-weak parts. The safety structure is simple, convenient to apply and low in cost; in a scheme that the circuit is protected by fusing the conducting elements, the safety structure solves contradiction between the structural strength and the sensitivity of the conducting elements, and further solves the problem that the cost is too high due to use of fuses in a plurality of branch circuits.

The object of the present invention is to disclose a permanent magnet synchronous motor rotor of mixed magnetic steel, which is composed of first magnetic steel, second magnetic steel, third magneticsteel, and a rotor core. The first, second and third magnetic steel are alternately distributed and embedded in the rotor core to form a plurality of magnetic poles. Each magnetic pole has N layers ofmagnetic steel, wherein N is a natural number greater than or equal to 3. The first, second and third magnetic steel are alternately distributed on the magnetic poles in sequence. Compared with the prior art, the multilayer magnetic steel arrangement can easily obtain a good magnetic flux concentration effect and pole arc coefficient control, solves the contradiction between the structural strength and the magnetic isolation effect of the tangential magnetic steel arrangement, and effectively reduces the performance degradation caused by the pole leakage reactance of the motor. A layer of themultilayer magnetic steel close to the outer circle of the rotor core is the radial magnetic steel to further enhance the magnetic flux concentration effect to achieve the object of the present invention.

The invention relates to a foldable and unfoldable double-layer type large inflatable palace lantern and a folding and inflating method. The inflatable palace lantern comprises an outer skin used for bearing the force and an inner container, wherein the inner container is of a multi-layer structure, an outer layer of the inner container is a nylon composite film, and an inner layer of the inner container is at least two layers of PE composite films; air holes for extruding residual gas are uniformly distributed in the nylon composite film; the inner container is fixedly connected to the inner side of the outer skin, an upper part and the bottom of the outer side of the outer skin are connected through a holder to form a palace lantern; a palace lantern is connected with a ground mooring point through the mooring rope, and the mooring rope is used for resisting the wind and fixing the palace lantern.

The invention discloses a land leveler and a rear rack connecting structure of the land leveler. The rear rack connecting structure of the land leveler comprises a first upper hinge connecting plate,a second upper hinge connecting plate, a lower hinge connecting plate, a left side supporting plate and a right side supporting plate; the left side supporting plate and the right side supporting plate are arranged in the vertical direction and are parallel; the first upper hinge connecting plate, the second upper hinge connecting plate and the lower hinge connecting plate are sequentially arranged in the horizontal direction from top to bottom; the two ends of the first upper hinge connecting plate, the second upper hinge connecting plate and the lower hinge connecting plate are connected with the left side supporting plate and the right side supporting plate correspondingly to form a box type structure; hinge pin holes are formed in the corresponding positions of the first upper hinge connecting plate, the second upper hinge connecting plate and the lower hinge connecting plate; lightening holes are formed in the first upper hinge connecting plate, the second upper hinge connecting plate and the lower hinge connecting plate correspondingly; and hinge lugs are further connected to the inner sides of the left side supporting plate and the right side supporting plate between the second upper hinge connecting plate and the second lower hinge connecting plate, and the hinge lugs are drop-shaped.

The invention aims to disclose a permanent magnet synchronous motor rotor with a high-performance tangential magnetic circuit structure. The rotor comprises a rotor core, first magnetic steels and second magnetic steels, the first magnetic steels and second magnetic steels are respectively inlaid into the rotor core, each magnetic pole of the rotor is formed by two first magnetic steels and two second magnetic steels which are uniformly distributed at the two sides of the central line of the magnetic pole, and a first magnetic pole is located at the outer side of a second magnetic pole. Compared to the prior art, the contradiction between the structural strength and the magnetic isolation effect of the tangential magnetic steel arrangement is solved, the multilayer magnetic steel arrangement is adopted to easily obtain the better magnetic gathering design and pole arc coefficient control, effectively inhibit the performance reduction caused by the leakage reactance of the motor pole and achieve the purposes of the invention.