52results about How to "Satisfy the rigidity requirement" patented technology

The invention relates to a storage device (1) for the storing and / or transporting of nuclear fuel assemblies, including a plurality of adjacent housings each having a lateral wall and being able to receive a nuclear fuel assembly, the lateral walls being realised at least in part using stacking and intercrossing slotted structural assemblies (6a, 6b), each structural assembly including at least one plate (22) realised in a first material comprising aluminium. According to the invention, each structural assembly (6a, 6b) further includes a tubular cross-section element (20) inside of which is located said at least one plate (22), this tubular cross-section element (20) being realised in a second material selected from steels and titanium and alloys thereof.

The invention discloses an energy consumption type variable-rigidity anti-seismic bridge check block based on a magneto-rheological body, the check block comprises a magneto-rheological vibration isolation device and a variable-rigidity rectangular cavity, and the magneto-rheological vibration isolation device is installed on the outer surface of the variable-rigidity rectangular cavity; the checkblock is small in initial rigidity, can effectively reduce damage caused by rigid collision between a beam body and the check block by means of a special triple spring and a magneto-rheological damping system in the magneto-rheological vibration isolation device when subjected to earthquake impact, has the multi-stage energy consumption characteristic, can consume energy stage by stage, and improves the anti-seismic property of a bridge. The negative poisson ratio module is installed in the variable-rigidity rectangular cavity and filled with the magneto-rheological elastomer, when the earthquake load effect changes, the internal structure of the variable-rigidity rectangular cavity is compressed along with pushing of the piston rod, the lateral rigidity of the check block is continuouslyenhanced, and the rigidity requirements under the earthquake load effects of different strengths can be met. The check block has good adaptability and enough bearing capacity, and is an ideal bridgeanti-seismic check block.

A die-expanded molding apparatus comprising starting material bead supply for supplying beads on a current of air from a tank through a packer into a cavity formed by a core and cavity molds; a plurality of air expulsion devices having air pressure-adjusting components communicating with the cavity, a dual-system air expulsion device being such that steam chambers on the back side of the core mold and the cavity mold are used as the air pressure-adjusting components, each communicating with the cavity through through-holes formed in the core and cavity molds, respectively; an air expulsion device having one or more air pressure-adjusting components communicating with a clearance between the core and cavity molds; and a control for controlling the air pressure in each of the air pressure-adjusting components to be pressurized less than the pressure in the tank.

The invention relates to a storage device (1) for the storing and / or transporting of nuclear fuel assemblies, including a plurality of adjacent housings each having a lateral wall and being able to receive a nuclear fuel assembly, the lateral walls being realized at least in part using stacking and intercrossing slotted structural assemblies (6a, 6b), each structural assembly including at least one plate (22) realized in a first material comprising aluminum. According to the invention, each structural assembly (6a, 6b) further includes a tubular cross-section element (20) inside of which is located said at least one plate (22), this tubular cross-section element (20) being realized in a second material selected from steels and titanium and alloys thereof.

The present invention provides a semiconductive belt including a substrate and a surface layer, wherein: the substrate contains a resin; the Young's modulus of the substrate is 1000 to 8000 MPa; the surface layer contains a lubricant component, a fibrous filling material, and an elastic material; and the durometer hardness of the surface layer is A30 / S to A70 / S.

Disclosed is a variable geometry and constant-volume inflatable tube, including an inflatable envelope having a central axis. A stress-bearing unit is provided, including a pair of first and second inextensible link belonging to a same longitudinal half-plane of the envelope, the first unit being oriented along a first longitudinal direction inclined with respect to the central axis and the second unit being oriented along a second longitudinal direction which is also inclined with respect to the central axis but which crosses the first direction on the central axis. The inflatable tube can be bent around a first or second pivot axis, the longitudinal tensile stresses applied to the envelope then being concentrated on the central axis.

Disclosed is a variable geometry and constant-volume inflatable tube, including an inflatable envelope having a central axis. A stress-bearing unit is provided, including a pair of first and second inextensible link belonging to a same longitudinal half-plane of the envelope, the first unit being oriented along a first longitudinal direction inclined with respect to the central axis and the second unit being oriented along a second longitudinal direction which is also inclined with respect to the central axis but which crosses the first direction on the central axis. The inflatable tube can be bent around a first or second pivot axis, the longitudinal tensile stresses applied to the envelope then being concentrated on the central axis.

The invention provides a railway wagon bogie and a rubber blanket thereof, and operation demands of vehicles can preferably be met. The rubber blanket comprises an upper lining plate, a lower lining plate and a rubber layer, wherein the rubber layer is arranged between the upper lining plate and the lower lining plate. The upper lining plate and the lower ling plate are provided with planes and two inclined planes, wherein the two inclined planes are spliced with two lateral edges of the planes. The two inclined planes of the upper lining plate and the two inclined planes of the lower lining plate are provided with convex-concave end faces and are connected with the rubber layer through the convex-concave end faces. Concave parts and convex parts of the convex-concave end faces are distributed along the horizontal directions. The concave parts of the convex-concave end faces of the upper lining plate are opposite to the convex parts of the convex-concave end faces of the lower lining plate. When transverse force and longitudinal force are acted on the rubber blanket, shear force is acted on the rubber layer of plane portions, and the shear force and tension / compression force are acted on the rubber layer of the inclined planes at the same time. Due to the fact that rubber has the feature that tension rigidity is greater than shear rigidity, therefore longitudinal rigidity and transverse rigidity of the rubber blanket are all improved.

A rigidity continuous adjustable ankle orthopedic shoe pad includes a shoe pad body and a rigidity adjustable device arranged on the bottom of the shoe pad body; the rigidity adjustable device includes a rotation mechanism and an opened elastic member, wherein one end of the opened elastic member is fixedly connected to the rotation mechanism, and the other end of the opened elastic member is movably connected to a propodeum bottom of the shoe pad; the rotation mechanism is arranged on a heel portion of the shoe pad; the rotation mechanism drives the opened elastic member to rotate horizontally so as to achieve rigidity continuous adjustment from the propodeum bottom to the heel portion. The rigidity adjustable device is simple and compact in structure, is easy to operate, is high in accuracy, can adjust the vertical supporting rigidity of an arch support curved surface of the ankle orthopedic shoe pad is adjusted, and can meet the rigidity demands of ankles in different motion conditions or / and different damage conditions.

A universal testing tool for a three-axis gyroscope comprises a tool body, switching supports and pressing blocks. The tool body is of a hexahedron structure, stepped holes used for gyroscope installation are formed in the three perpendicular faces of the tool body respectively, through connection support fixing holes, gyroscope positioning holes of different specifications and pressing block fixing columns form a set of positioning structures, and the multiple sets of positioning structures are evenly distributed in the circumferential direction of the stepped faces used for gyroscope installation. The step holes of the tool body are used for positioning gyroscopes with different specifications; the switching supports are matched with the switching support fixing holes, the gyroscope positioning holes with different specifications and the mounting holes in the gyroscopes, and are used for fixing the gyroscopes; and each switching support corresponds to one pressing block used for locking the switching support. According to the universal testing tool for the three common gyroscopes, the testing of the three different types of gyroscopes can be completed by using one tool body without designing an independent tool, so that the time is saved, and the cost is reduced.

The present invention provides a semiconductive belt including a substrate and a surface layer, wherein: the substrate contains a resin; the Young's modulus of the substrate is 1000 to 8000 MPa; the surface layer contains a lubricant component, a fibrous filling material, and an elastic material; and the durometer hardness of the surface layer is A30 / S to A70 / S.

The invention discloses a pull rod node assembly and a design method thereof. The pull rod node assembly comprises a pull rod and a node pressed into the pull rod; the node is composed of a core shaftand rubber bonded to the core shaft in a vulcanized mode. The node is characterized in that a part, matched with the pull rod, of the node is divided into three sections, wherein a stop section is located in the middle and has a stop function, and symmetrical sections are arranged on the left side and the right side of the stop section in a mirror symmetry mode; the core shaft diameter of the stop section is larger than that of the symmetrical sections, the rubber thickness of the stop section is smaller than that of the symmetrical sections, the rubber of the stop section is in a free state,and the rubber of the symmetrical sections is in a pre-compression state. Comfortable performance is improved, rigidity requirements under large loads and damping requirements and bearing requirements of the node under different lines are met, fatigue life of products is prolonged, and safety of vehicle operation is guaranteed.

The invention provides a reflector assembly, the reflector assembly includes a reflector and a support structure, the reflector includes a mirror surface body and a mirror surface body support part located at the reverse side of the mirror surface body, and the outer side of the mirror surface body support part is arranged to be an outer cylindrical surface; the support structure is a split type structure and includes an outer support ring and at least three connecting blocks uniformly distributed at the inner side of the outer support ring; at least one layer of flexible arm is arranged on the outer support ring, and the flexible arms extend along a circumferential direction of the outer support ring; and machine body interfaces are arranged on the outer support ring. The reflector assembly provided by the invention can meet a requirement of temperature adaptation to low rigidity in a radial direction, and can meet a requirement of circumferential reciprocating motion of the reflectorto high rigidity in a circumferential direction.

The invention discloses a restorable railway bridge ductile structure pier. The restorable railway bridge ductile structure pier includes a concrete pier body, the pier body comprises an outer ring reinforcement cage and an inner ring reinforcement cage. The outer ring reinforcement cage comprises first longitudinal bars and first stirrups, the first longitudinal bars are arranged along the full length of the pier body, a gap is formed between the bottom surface of the outer ring reinforcement cage and the top surface of a bearing platform, a mortar cushion layer is arranged in the gap, the inner ring reinforcement cage comprises second longitudinal bars and second stirrups, and the bottom of the inner ring reinforcement cage extends into the bearing platform. By adopting the structure, under the effects of normal operation and small earthquake of a railway bridge, the pier can meet the rigidity requirement of normal operation of a train, under the action of a large earthquake, a plastic hinge is formed at the pier bottom to dissipate earthquake energy, ductile earthquake-resistant design of the pier is achieved, ductile deformation capacity and earthquake energy dissipation capacity of a traditional railway pier are improved, the mortar cushion layer can be rapidly repaired after the earthquake, the pier is restored to the size and rigidity before the earthquake, driving safety after the earthquake is guaranteed, and precious time is won for rescue after the earthquake.

An elastic wheel for a rail traffic vehicle comprises a tire, a wheel core and elastic bodies, wherein the tire and the wheel core are radially separated to form radial clearances and are circumferentially separated to form circumferential clearances; N*2 circumferential clearances are circumferentially uniformly distributed, and N is not less than 3; each elastic body is compressed into the corresponding circumferential clearance; the elastic bodies are radially separated from the tire and the wheel core without contact; and the circumferential clearances are arranged parallel to two sides towhich the elastic bodies are clung. With the adoption of the elastic wheel for the rail traffic vehicle, the radial rigidity of the elastic wheel can be effectively reduced; the radial axis rigidityratio of the elastic wheel is reduced; the vibration condition of a lower part of a vehicle spring is reduced; the structure stability and reliability of the elastic wheel is improved; the rigidity demand of the lower part of the vehicle spring in a low-floor vehicle under different route conditions can be met; the use safety of the elastic wheel is improved; the production cost and the maintenance cost of the elastic wheel are low; and the practicability of the elastic wheel is improved. The invention also supplies an assembling method and a rigidity design method of the elastic wheel for therail traffic vehicle.

The invention provides an engine mounting pad assembly. The assembly includes an upper installing plate assembly connected with an engine and a lower installing plate assembly connected to a vehicle frame. A rubber assembly is disposed between the upper installing plate assembly and the lower installing plate assembly. The rubber assembly includes a rubber body used for engine load and vibration reduction and a limit rubber block for limiting under extreme working conditions; the shore hardness of the rubber body is 40 degrees-60 degrees; and the shore hardness of the limit rubber block is more than 65 degrees. The engine mounting pad assembly has the advantages of a compact structure and effectively meeting requirements of support, limit and vibration isolation reduction.

The invention relates to the technical field of manufacturing of liquid metal mechanical structures and discloses a liquid metal continuum mechanical arm structure. The liquid metal continuum mechanical arm structure comprises a heat pipe, an outer pipe, sealing end plates and a heat exchange structure. The periphery of the heat pipe is sleeved with the outer pipe, and an annular space is constructed between the heat pipe and the outer pipe. The sealing end plates are arranged at the two ends of the annular space correspondingly, and accordingly an annular cavity capable of containing liquid metal is constructed. The first end of the heat pipe stretches out of the sealing end plate located on the corresponding side of the heat pipe. The heat exchange structure is arranged on the peripheryof the first end of the heat pipe and can heat and cool the heat pipe. The liquid metal continuum mechanical arm structure has the advantages of easy control, uniform heating and short cooling time.

The invention provides a vehicle body, a railway vehicle and a built-in assembly of the railway vehicle. The interior assembly of the railway vehicle comprises a floor framework and an interior wall plate installed on the railway vehicle; a vertical handrail, the first end of the vertical handrail is hoisted on a vehicle body top plate of the railway vehicle, and the second end extends into a passenger room of the railway vehicle; and a passenger room floor which is hung at the second end of the floor framework and / or the vertical handrail so as to separate the passenger room floor from the vehicle body floor. According to the interior assembly of the railway vehicle, the passenger room floor and the equipment under the vehicle can be isolated from each other, noise generated in the running process of the equipment under the vehicle is prevented from being transmitted into a passenger room through the passenger room floor, and the noise in the passenger room is reduced. The transverse span of the guest room floor can be reduced, and the rigidity requirement of the guest room floor is met. The vertical handrail can be supported and fixed, and the structural strength of the passenger room floor can be enhanced. The passenger room floor, the floor framework and the vertical handrail can be assembled and formed under the vehicle and then integrally installed on the vehicle body after being assembled, and the vehicle body assembling efficiency can be improved.

The invention discloses a design method of a lightweight structure of a palm mattress. The method comprises the following steps: layering a palm mattress to obtain mattress layers, establishing a palmmattress model, applying a human body load to the palm mattress model, carrying out stress deformation analysis, measuring the deflection value of each corresponding mattress layer in the palm mattress model, and setting the density of each mattress layer according to the deflection value change of each mattress layer to obtain the light-weight structure of the palm mattress. By adopting the method disclosed by the invention, the lightweight structural design of the palm material mattress can be guided, the palm material mattress is designed into a layered structure, and the density of the mattress is designed, so that the light weight of the mattress is realized. Through the design, the total density of the palm fiber mattress can be reduced, the use amount of mattress materials is reduced, the production cost is reduced, and the product quality can be guaranteed.

The invention discloses a bearing-shearing connector. The bearing-shearing connector is used for connecting a steel beam and a precast concrete plank, the steel beam and the precast concrete plank areused for forming an integrally forced steel-precast concrete composite beam; bearing-shearing connector is composed of two shearing plates and two bearing plates; the steel beam is provided with a plurality of bearing-shearing connectors, the multiple bearing-shearing connectors are arranged in the axial direction of the steel beam according to requirements of bearing capacities. The bearing-shearing connector has the beneficial effects that the bearing-shearing connector can ensure the effective connection of the steel beam and the precast concrete plank, the size of a reserved hole of the precast concrete plank is reduced so that weakening on the precast concrete plank is reduced, the manufacturing difficulty of the precast concrete plank is reduced, and the amount of work on the construction site is reduced.

A reinforcing structure is integrally formed on a front wall of a cylinder block of shallow water jacket type. The reinforcing structure comprises mutually crossing vertical and lateral ribs. The vertical rib extends vertically between upper and lower deck portions of the cylinder block, and the lateral rib is constructed to constitute a raised ridge of a front one of jacket bottom wall. Alternatively, the reinforcing structure comprises a raised bolt boss that is integrally formed on a front one of jacket bottom walls to catch a connecting bolt used for securing a middle portion of a front cover to the front wall.

The invention provides a high-load-bearing full-sealed disk-type structure vibration isolation device. The vibration isolation device mainly comprises a cover plate, a disk-type structure vibration isolator and a bottom basin. The disk-type structure vibration isolator is arranged between the cover plate and the bottom basin in a surrounded mode. The disk-type structure vibration isolator is of acentral symmetry structure. The center of the disk-type structure vibration isolator protrudes upwards to form an elastic deformation part. The outer edge of the elastic deformation part extends outwards to form a supporting part. The center of the elastic deformation part serves as a supporting platform. The upper surface of the supporting platform makes contact with and is matched with the lowersurface of the cover plate. The lower surface of the supporting platform does not make contact with the upper surface of the bottom basin. The periphery of the supporting platform is connected with ataper tube section inclined downwards. The supporting platform is connected with the supporting part through the taper tube section. The taper tube section is provided with a plurality of holes. Thethickness of the taper tube section gradually decreases from the supporting platform to the supporting part. The high-load-bearing full-sealed disk-type structure vibration isolation device achieves the vibration isolation effect in a pure structure form and is placed on a supporting part of a vibration isolated body to reduce the vertical stiffness appropriately, and the vertical fundamental frequency keeps away from the main frequency of vibration of the upper structure. Accordingly, the vertical vibration isolation function is achieved.

The invention relates to the technical field of automobile production and particularly relates to a bracket of an elevator for an automobile production line. The bracket comprises an elevator fixing rack and a supporting structure; the elevator fixing rack comprises a portal beam rack; two left and right symmetrical I-shaped supports are arranged below the portal beam rack; two side plates of theportal beam rack are separately welded to one sides of the I-shaped supports; the supporting structure comprises columns, the columns are welded to the lower surfaces of the I-shaped supports, a plurality of cross beams are arranged on one sides of the columns, two ends of each of the cross beams are separately welded to two inner side surface of each of the two columns, a guide slot is formed inone wall of each of the columns, a fixed seat is arranged below each of the columns, and a plurality of triangular side plates are fixed on the upper surface of the fixed seat. The bracket provided bythe invention is stable in integral structure which does not deform, has enough bearing capacity, is elaborate in design and reasonable in matching, improves the production efficiency, and is suitable for being popularized and used on a large scale.

The invention discloses a three-degree-of-freedom large expansion ratio translational parallel mechanical arm based on a tape measure spring, which includes two W-shaped tape measure movement units, a telescopic connection hub and a bottom working platform; the W-type tape measure movement unit is connected through the connecting rod contained therein. The telescopic communication hub is connected with the bottom working platform so that the bottom working platform can move horizontally along a certain direction. In the present invention, the two W-shaped measuring tape movement units are space-staggered and vertically distributed, and cooperate with the telescopic connection hinge to make the bottom platform have a three-dimensional working space with three degrees of freedom, which can realize telescopic, left-right and front-back translation, and adopts automatic shrinkage The flexible tape spring is used as the link arm, which has a simple structure and small mass, which not only meets the rigidity requirements of the mechanical arm, but also its flexible scalability and the expansion and contraction characteristics of the connecting hub make the expansion ratio of the mechanical arm extremely large. After the mechanical arm is fully retracted, the The occupied volume is very small, which is easy to carry or carry out operations.

The invention provides a motion mechanism with variable rigidity and flexibility. The motion mechanism comprises a motion chain and a drive mechanism, the motion chain comprises two symmetrically installed motion single chains, each motion single chain comprises a plurality of inner sections and a plurality of outer sections, each of the inner sections and the outer sections is formed by two contact sheets, two hinge foundation pillars are arranged between the two contact sheets of each inner section, two hinge base holes penetrate the position between the two contact sheets of each outer section, the hinge foundation pillar at the lower end of the inner section is movably installed with the hinge base hole at the upper end of the outer section, the hinge foundation pillar at the upper endof the inner section is movably installed with the hinge base hole at the lower end of the other section, the inner sections and the outer sections are installed in order from top to bottom at intervals, connection bulges are arranged at the middle positions of the sides of the contact sheets of the inner sections and the outer sections, the end faces of the connection bulges are provided with locking mechanisms, and a charging execution device is installed above the motion chains. The motion mechanism with variable rigidity and flexibility solves the problems that a current motion mechanismhas a fixed motion performance and cannot achieve free conversion of the rigidity and the flexibility so that the motion mechanism is not flexible enough and is small in application range.

The invention provides a rigidity-adjustable orthopedic insole. The insole is made of upper and lower layers including an intelligent deformation layer and a structural support layer, wherein the intelligent deformation layer is closely attached to the sole of a patient, made of a flexible polymer intelligent material and non-uniformly distributed in a foot arch area of the insole; the structuralsupport layer is the lowest layer and made of a structure material with bearing capacity. The intelligent deformable material is added to the orthopedic insole, time dimension is introduced on the basis of existing 3D printing, and 4D printing is formed. With change of the recovery condition of foot malformation degree of the patient in the orthopedic process, the intelligent deformation layer inthe orthopedic insole obtained through 4D printing forming has self-deformation such as expansion, bending, shrinkage and folding under excitation of an external field, and orthopedic insole shape andrigidity timely coordinated with foot malformation of the patient are formed, so that personalized customization of the orthopedic insole and timely self-adjustment of rigidity and shape are realized.

The present invention relates to the technical field of wind tunnel aerodynamic test measurement, in particular to the calibration of wind tunnel balances, in particular to a load calibration loading head for wind tunnel balances, including a body on which several horizontal loading mechanisms and longitudinal loading mechanisms are arranged. The horizontal loading mechanism and the longitudinal loading mechanism include horizontal connecting parts and longitudinal connecting parts for applying horizontal force and longitudinal force respectively, and the several horizontal connecting parts are used to provide calibration loads in the four directions of horizontal x and y, so The several longitudinal connections described above are used to provide calibration loads in the two directions of the longitudinal direction z. The invention optimizes the structure of the loading head, and simulates the force of the wind tunnel balance in multiple dimensions by setting multiple horizontal loading mechanisms and longitudinal loading mechanisms, so that the calibration of the wind tunnel balance is more accurate; at the same time, the structure of the body is While meeting the rigidity requirements, it greatly reduces its own weight and further improves the calibration level of the wind tunnel balance.

The invention discloses a side air sag, which comprises a gas generator, a first air bag and a second air bag, wherein the first air bag is connected with the air generator; a plurality of through holes are uniformly distributed in the first air bag; and the first air bag and the second air bag are communicated with each other through the through holes. According to the side air sag, the through holes are uniformly distributed in the first air bag, so that the upper, middle and lower inflating speeds are equal in the inflating process of the second air bag, the inflating pressure is uniform, the rigidity of each part is uniform after inflation of the second air bag, and requirements of passengers on the rigidity of different positions of the air sag are met.