63results about How to "High degree of lightweight" patented technology

A heavy-duty diesel engine split type rocker arm brake mechanism for a commercial vehicle comprises a rocker arm body, a swing mechanism and a hydraulic drive system; the rocker arm body is mounted on a rocker arm shaft through a main mounting hole, the swing mechanism comprises a swing head, a first adjusting bolt and a rolling column, the swing head is mounted on the rocker arm body, a sheet-shaped spring is arranged at the bottom of the swing head, and is pressed on the bottom of the rocker arm body, a ball head of the first adjusting bolt is mounted in a ball socket in an elephant foot shape, the hydraulic drive system comprises a hydraulic plunger with a return spring sleeved, a second adjusting bolt in contact with the hydraulic plunger and a rocker arm cam in threaded connection with the hydraulic plunger, the hydraulic plunger is mounted in a drive cavity of the rocker arm body, the rocker arm cam makes contact with the rolling column, a brake hydraulic oil way communicated with the main mounting hole, the drive cavity and a swing arm shaft hydraulic oil hole is arranged in the rocker arm body, and the heavy-duty diesel engine split type rocker arm brake mechanism is high in reliability, low in cost, high in lightweight degree, simple in structure, convenient to assemble and maintain and good in brake effect.

The invention discloses an active swing arm type variable diamond four-wheel lunar rover moving system. The system comprises a diamond like vehicle frame, a front wheel, a rear wheel, a left wheel and a right wheel with an independent driving system positioned on the vehicle frame. The front wheel and the rear wheel are fixedly positioned on the vehicle frame via a front suspension system and a rear suspension system. The left wheel and the right wheel are fixedly positioned on the vehicle frame via the left suspension system and the right suspension system. The front suspension system and the rear suspension system comprise a swing arm type power mechanism and a steering mechanism. The front wheel and the rear wheel change direction in linkage. The left suspension system and the right suspension system comprise a swing arm type power mechanism. Adopting the structure of the four-wheel three-axis diamond chassis and the active swing arm, the invention initially plays the high-efficient mobility of wheel type driving mode and the crawling ability of foot type moving system, and the invention relates to the active swing arm type variable diamond four-wheel lunar rover moving system with simple and compact structure, low cost, being suitable for operation under various severs environments, wide application, good stability, high reliability and strong flexibility of steering.

The invention aims at proving a vehicle body framework made of press working drip mouldings of a two-wheeled motorcycle. The vehicle body framework not only satisfies a requirement of light weight but also has relatively high rigidity. On the vehicle body framework, a main framework (22) is composed of a straight line extension portion (27) and a bending portion (28) which bends from a rear end of the straight line extension portion (27) and is extended downwards. A rear framework (23) is a part whose head end is connected with the left and right lateral surfaces of the bending portion (28) in a vehicle width direction and a part that is extended backwards. Reinforcement members (77, 78) that are generally rectangular in an overlook view are disposed between the bending portion (28) and a front portion inner surface of the rear framework (23). Front edges of the reinforcement members (77, 78) are connected with a rear surface of the bending portion (28) and a pivot framework portion (24) respectively.

The invention relates to a manufacturing method for a reverted austenite hot-stamped steel plate. The method comprises the following steps: (1) heating materials to a certain temperature of greater than Ac3 (a finishing temperature of austenite transformation) at a certain heating speed and insulating heat for a certain time; (2) carrying out primary quenching: transferring a steel plate into a stamping die and carrying out hot-stamping formation, and then carrying out water quenching to achieve room temperature; (3) carrying out heat insulation in a reverted austenite area: re-heating the steel plate quenched to the room temperature to a certain temperature between As (a beginning temperature of reverted austenite formation) and Ac1 (a beginning temperature of austenite transformation) and keeping constant temperature for a period of time; (4) carrying out secondary quenching: rapidly quenching the steel plate to a certain temperature between Ms (a beginning temperature of martensite phase transformation) and Mf (a finishing temperature of martensite phase transformation) and insulating heat for a certain time; (5) partitioning: heating the steel plate to a temperature of greater than Ms and insulating heat for element partitioning; and (6) carrying out tertiary quenching: quenching the steel plate to room temperature.

The invention discloses a vehicle longitudinal trim control device. The device comprises a damping mechanism, lever mechanisms are symmetrically arranged on the two sides of the damping mechanism androtationally connected with the damping mechanism, transmission rods are connected to one ends of the lever mechanisms on the two sides, and the transmission rods are rotationally connected with the lever mechanism. The device has the advantages that by arranging the damping mechanism of an independent suspension, the damping mechanism can only take effect when wheels hop in the same direction simultaneously for twice, that is to say, the damping mechanism can only take effect when a longitudinal trim tendency exists, and then the purpose that individual control over the longitudinal trim characteristic is conducted while the vehicle longitudinal trim characteristic is not affected can be achieved; therefore, by means of the device, good longitudinal trim control can be provided for a vehicle under the condition of not affecting the vehicle longitudinal trim characteristic; in addition, the device is compact in structure, simple in layout and easy to disassemble, install and adjust, and has an extremely high application value.

The invention provides a crossed belt sorting trolley assembling method. The improvement design on respective modular structures and assembling methods of an upper conveying unit and a lower frameworkis adopted, and accordingly the purposes that the installing stability and assembling and disassembling accuracy of module structures of various assemblies are improved, the disassembling and assembling operation efficiency is simplified, and component abrasion and running noise are reduced are expected to be achieved. A sorting trolley is divided into an upper conveying unit and a lower framework, and after respective independent assembling, integral installation is implemented. A folding plate is horizontally and fixedly arranged on each side plate of the upper conveying unit, and a first bending connecting plate and a second bending connecting plate are vertically and fixedly arranged on each side plate. A plurality of uniform arc sections are arranged on the outer side edges of the folding plates. When a front sorting trolley and a rear sorting trolley are connected in series, the arc sections of the respective folding plates of the front sorting trolley and the rear sorting trolley are engaged, and a certain gap is reserved. The folding plates are fixedly connected with folding plate fixing plates arranged at the side portions of the side plates. The part between the side plates on the two sides is transversely connected with multiple pull rods, and the two ends of the pull rods are fixedly connected with the side plates through bolts from the outer sides. The first bending connecting plates and the second bending connecting plates are connected with the side plates on one sides correspondingly.

The invention relates to a support of an air suspension and special high-strength cast-state ductile iron of the support. The high-yield-strength cast-state ductile iron comprises chemical componentsincluding C, S, P, Mn, Si, Cr, Sn, Mg, Re and the balance Fe. The support comprises a support body, an air spring supporting face and a middle and rear axle thrust rod base, and the support is of an integral casting structure. Compared with the prior art, according to the cast-state performance, the tensile strength sigma b is larger than or equal to 600 MPa, sigma 0.2 is larger than or equal to 400 MPa, delta is larger than or equal to 10%, the brinell hardness HB is equal to 245-287, the content of a cast-state base body is 80%, the content of cementite is 1%, the yield strength is improved,and the material performance requirement of a structure bearing piece with the medium heavy truck fatigue resisting strength can be met. In addition, the support is of the integral casting structure,welding, forging, punching and other technologies are not needed, respective assembling is not needed neither, cost is greatly reduced, and time is greatly shortened; the effective strength is guaranteed, and meanwhile material stacking is reduced as well; and the space is more compact, the lightweight degree is higher, and the fuel economy of a whole vehicle can be better improved.

The invention relates to a tooling device used for assembly of a rotor and a stator in a shielding electric motor, wherein three aluminum supports uniformly distributed on a tooling bracket and a nylon block fixed on the surface of the same are used to realize positioning guidance, a whole set of tool is connected to the rotor by an axial end threaded hole, radial positioning is realized by a stepped shaft small circle, and thus the objective to assemble the rotator into the stator is realized. In tooling device used for the assembly of the rotor and the stator in the shielding electric motor provided by the invention, lightweight design is adopted, so that tool assembly and disassembly are convenient; and the guiding and positioning of a non-metal material are adopted, so that scratches to a product surface during the assembly are avoided. The tooling device has high accuracy of the positioning guiding, can realize requirements of the rotor with a small volume for the assembly and the positioning, is simple in the assembly and disassembly, can greatly reduce time cost, and can shorten a product manufacture period.

The invention discloses a weld defect multi-scale feature extraction module and method based on lightweight cavity convolution, and belongs to the related technical field of weld defect detection. The module comprises a plurality of branches and a first superposition layer which are connected in parallel, each branch comprises the lightweight cavity convolution and a space pooling pyramid which are connected, the lightweight cavity convolution is used for extracting weld defect features of different receptive fields from the weld defect feature map to generate a first feature map, and the spatial pooling pyramid is used for enhancing the expression ability of the first feature map for the weld defect features of different scales through pooling layers of different sizes and then generating a second feature map; the expansion rates of the lightweight cavity convolution of different branches are different; and the first superposition layer is used for superposing the second feature maps output by all the branches to generate a final feature map. According to the method, lightweight improvement is carried out on the model, the robustness of the neural network model for large size change of the weld defect is enhanced, and the neural network model can be conveniently and quickly embedded into various models.

The invention discloses a lightweight fractal gradient gear. The lightweight fractal gradient gear comprises a gear body and is characterized by further comprising two plate bodies, wherein the platebodies are fixed to the two sides of the gear body; and the gear body is of a porous lightweight structure, wherein the porous lightweight structure at least is composed of a first-stage gradient holegroup, a second-stage gradient hole group and a third-stage gradient hole group which are constructed in a staggered mode. According to the lightweight fractal gradient gear, a honeycomb type multi-cell structure serves as a prototype, and gradient type, split type and multi-type design is carried out, so that the maximum lightweight of the gear is achieved, and manufacturing is convenient.

The invention provides a balcony which comprises a balcony board stretching out of a building, and a guardrail mounted on the balcony board. The balcony board is formed by splicing of a plurality of composite boards, and each composite board comprises an upper panel, a lower panel, a plurality of pipe bodies in the middle, and brazing layers between the pipe bodies and the upper panel as wells asbetween the pipe bodies and the lower panel. The balcony has the characteristics of being low in self-weight, low in construction cost, high in structural strength, and good in heat-insulating, sound-insulating and vibration-insulating effects.

The invention discloses a BIM (Building Information Modeling) lightweight method based on digital-analog separation, which is characterized by comprising the following steps of: classifying existing components in a BIM according to a given rule and different categories, and endowing each category with different category codes; reading information data according to different information structures of each category of components of the BIM model, and uploading the information data to a database; an entity of the BIM model being converted into a graphic model, all patches of the graphic model being triangularly sliced, and angular point coordinates of the triangular patches being obtained; automatically optimizing the number of the triangular plates of the surface patch according to the angular point coordinates of the triangular plates, and reducing the number of the triangular plates; the category codes and the component IDs serving as set names of triangular plates of all the components and being used for associating the model components with database model information data. By means of the method, the weight of the weight-level BIM model can be reduced, and great technical convenience is provided for building full-life-cycle BIM application.

The invention discloses a pedestrian overpass. The pedestrian overpass comprises an overpass body, an overpass face arranged on the overpass body and guardrails arranged on the overpass face, the overpass face is composed of one or a plurality of composite plates by splicing, and the composite plates comprise upper panels, lower panels, a plurality of pipe bodies in the middle, and brazing layersbetween the pipe bodies and the upper panels as well as the lower panels. On the one hand, the pedestrian overpass has four functions of heat preservation, fire prevention, sound insulation and vibration isolation; on the other hand, under the same strength, the amount of used material is least; under the same weight, the strength is largest; and the pedestrian overpass has the characteristics ofbeing quick to assemble and disassemble and easy to replace and maintain.

A turnover type side protective fence for a battery replacing vehicle type comprises a plurality of fixing supports, the fixing supports are U-shaped structures, the bottoms of the fixing supports are rotatably connected with a protective fence vertical beam through perforated shafts, a slotted nut is arranged at one end of each perforated shaft, and a protective fence cross beam is arranged above the protective fence vertical beam; and the top of each fixing support is connected with a cargo compartment side bottom beam through a riveting nut, and a lock pin is arranged on the fixing support to fix the protective fence vertical beam. The battery replacing efficiency is high, and the mounting and dismounting processes are simple and convenient.

The robot joint embedded electromagnetic braking harmonic speed reducer comprises an input shaft and an output shaft rotationally installed in the middle of the input shaft, one side of the input shaft is a wave generating end, the other side of the input shaft is a braking end, and the wave generating end of the input shaft is provided with a wave generator; the brake end of the input shaft is provided with a rear end cover and a friction brake assembly, the rear end cover is provided with a coil groove and a spring installation groove, an electromagnetic coil is installed in the coil groove of the rear end cover in a matched mode, a spring is installed in the spring installation groove of the rear end cover, the spring is fixedly connected with a brake armature, and the friction brake assembly comprises a friction plate corresponding to the brake armature. The spring elastically drives the brake armature to cling to the friction plate for friction braking; a flexible gear is installed outside the wave generator in a matched mode, and a rigid gear is installed outside the flexible gear in a matched mode and connected with the output shaft. The optimal matching scheme of harmonic speed reduction and electromagnetic braking is provided, the integration degree and the lightweight degree are high, and the positioning precision and performance are improved.

The invention discloses an acquisition circuit for an intelligent inspection explosion-proof robot, which comprises a control center, a voice control module, an air pressure, temperature and humidity acquisition module, a sound intensity acquisition module, a carbon monoxide acquisition module and a smoke acquisition module, wherein the control center is electrically connected with the voice control module, the air pressure, temperature and humidity acquisition module, the sound intensity acquisition module, the carbon monoxide acquisition module and the smoke acquisition module; the circuit also includes a power supply module used for providing electric energy for the control center, the voice control module, the air pressure and temperature and humidity acquisition module, the sound intensity acquisition module, the carbon monoxide acquisition module and the smoke acquisition module, and the control center is further electrically connected with an external master control center. The control center, the voice control module, the air pressure and temperature and humidity acquisition module, the sound intensity acquisition module, the carbon monoxide acquisition module and the smoke acquisition module are all placed in the distribution package acquisition shell. The method has the advantages of improving product light weight, reducing product cost and the like.

The invention provides a panel structure used for a medical device housing. A plurality of composite plates are spliced together so as to form the panel structure; the composite plate includes an upper panel, a lower panel, a plurality of tube bodies between the upper panel and the lower panel, and brazing layers between the tube bodies and the upper panel as well as between the tube bodies and the lower panel. The panel structure of the invention has the advantages of light weight, high structural strength, convenience in replacement, long service life, radiation protection, heat insulation,sound insulation and good vibration isolation effect.

The present invention relates to a cavity filter. The cavity filter comprises a cavity internally provided with a plurality of resonant cavities, a cover plate capable of covering the cavity and a plurality of resonators respectively arranged in the resonant cavities and coupled to each other through preset coupling window. Frequency modulation areas are formed at positions of the cover plate corresponding to the resonators, coupling modulation areas are formed at positions of the cover plate corresponding to the coupling windows, and the frequency modulation areas and the coupling modulationareas can operably generate deformation. The frequency modulation areas and the coupling modulation areas respectively corresponding to the positions of the resonators and the coupling windows, capacitance and inductance parameters can be changed when the frequency modulation areas and the coupling modulation areas are convex upwards or concave downwards to achieve regulation of the frequency of the resonators and the coupling quantity between the resonators. Therefore, the cavity filter is provided with the frequency modulation areas and the coupling modulation areas on the cover plate to replace a traditional adjusting screw rod so as to effectively reduce the number of elements and simplify the structure, and the cavity filter is miniaturized and higher in light weight degree.

The invention provides a large and medium-sized part lightweight design method based on generative optimization and guide reconstruction. The method comprises the following steps of: establishing an original model, selecting a manufacturing material, performing stress and deformation analysis on the original model, judging whether the material selection is suitable or not, performing generative topological optimization on the original model, and screening a generative optimization design scheme according to an evaluation model; taking a traditional processing technology as a guide, performing reverse reconstruction on the generative optimal scheme model, performing stress and deformation analysis again, and checking strength and rigidity; and performing secondary or multi-time reconstruction on the reconstruction model which does not meet the design requirements until a result meeting the design requirements is obtained. According to the method, the limitation that topological optimization structure forming depends on additive manufacturing is broken through, the problem that it is difficult to widely apply the topological optimization technology under the influence of the limitation that the additive manufacturing technology is limited in forming size, high in machining failure risk, high in manufacturing cost and the like is solved, and the weight, the machining difficulty and the manufacturing cost of large and medium-sized parts are effectively reduced.