48results about How to "Reasonable dispersion" patented technology

The invention discloses a front body framework structure of an automobile. The front body framework structure of the automobile comprises an automobile body A post, a front protective cross beam, a front engine room framework assembly and a front floor framework assembly, wherein the front engine room framework assembly comprises a front engine room longitudinal beam, and a plurality of longitudinal beams and cross beams, which are connected with the front engine room longitudinal beam and are used for dispersing and transferring collision energy; and the front floor framework assembly comprises a front floor longitudinal beam, a lower door sill, and a plurality of longitudinal beams and cross beams, which are connected with the front floor longitudinal beam and the lower door sill and are used for dispersing and transferring collision energy. Through the technical scheme, a plurality of structural beams are welded to form a closed annular body framework structure; the plurality of longitudinal beams and cross beams are used for absorbing and transferring the collision impact load, so that the front part is deformed and absorbs energy sufficiently; the number of impact energy transfer passages is large; the energy is reasonably dispersed; the energy is absorbed in time; the invasion amount of a front baffle plate is small; the deformation of the floor and a middle passage is small; the deformation of a cab is reduced; and thus, the damage to a passenger in the collision, and the maintenance cost of the automobile are reduced.

The invention discloses a vehicle-mounted manhole cover detection method based on arc-point combination. The method comprises the following steps that images shot by an automobile data recorder are converted into grey-scale images, and an edge extraction algorithm and a thinning algorithm are used for contour extracting and thinning; according to connectivity and regional relationships among points, the contour is broken off from cross points, segmental arcs are classified according to concavity and convexity of each segmental arc, and linear segments and small segmental arcs are removed; candidate segmental arcs are divided into groups, arcs which meet quadrant constraint and central constraint are classified, and a central point position is determined by central point constraint; points are selected from segmental arcs in different quadrants and least square fit of an ellipse is carried out; false removal and screening are conducted on a fitted ellipse, and the position of a manhole cover is judged. According to the vehicle-mounted manhole cover detection method based on the arc-point combination, segmental arc processing is used as preprocessing of the point fitting, most of the irrelevant interference is removed at the complicated road background, the probability of invalid random sampling is excluded, and the detection speed of road surface manhole covers is improved.

The invention belongs to the technical field of forge piece forging, and particularly relates to an integral forging and forming method for a large-scale end socket forge piece of a nuclear reactor with a plurality of protruding nozzles. A cylindrical blank is prepared through implementation of the processes of removal of a head and a tail of a steel ingot, drawing out of upsetting, rolling and blanking and the like, and moulding bed formation is implemented on the cylindrical blank by adopting a flat-anvil male-die subarea rotary rolling and forging method, so that filling forming of the shapes of the nozzles of a middle prefabricated slab is achieved through a free forging method by means of a moulding bed. According to the integral forging and forming method for the large-scale end socket forge piece of the nuclear reactor with the multiple protruding nozzles, the shape and the size of the prefabricated slab can be effectively controlled, metal of the prefabricated slab is reasonably dispersed, and the situations that the internal organization is even, forming process line is distinct, the fibrous structure is good, and the contour shape is intact are achieved. Hot stamping technology deformation belongs to the scope of large displacement and small strain in nature, and the needed press machine loading force is small; hot stamping integral forming is easy to control the shape of a big end socket forge piece product, the heat loss in the forming process of the big end socket forge piece product is small, the heating temperature of a blank is low, the time is short, so that finish-forging formed grains are controlled to grow up, and the product quality is guaranteed.

The invention relates to a structural design technology of an all-steel radial ply tire, in particular to the adjustment of the zero degree belt structure of the all-steel radial ply tire; the all-steel radial ply tire with zero degree belt structure comprises a tire face, a tire side, a tire ring and a cord ply; the exterior of the cord ply is sequentially 1# belt, 2# belt and zero degree belt; wherein, the 1# belt is wider than the zero degree belt; the grade difference between the 1# belt and the zero degree belt is at least 3mm. The invention breaks through the restrict of western design originator Pirelli SpA design conception on the zero degree belt structure, and provides an improved zero degree belt structure; namely, the zero degree belt is wider than the 1# belt; as the grade difference of the belt is increased, the stress is reasonably dispersed, in particular the shearing stress between ends of the 1#belt and 2# belt and the strain energy of the belt end region are reduced; the invention greatly improves the durability of the tire and reduces the shoulder vacancy defect of the tire.

The invention relates to a sub-normal-temperature potato preservation method. The method includes steps: (1) post-harvest processing, namely performing sulfur fumigation for disinfection and clearing of a crypt to keep a low temperature before storage; (2) potato surface treatment; (3) storage environment control; (4) pre-marketing treatment. By means of two-stage mildew-proof treatment, a potato bud control mildew-proof complex agent I is adopted and effective in control of potato germination and mildewing, and the bud control rate and the mildew-proof rate are 31% and 15% of those of a contrast respectively; at a second stage, a preservative agent II is adopted and also has antiseptic and sterilization efficacies.

The invention discloses a valve rocker for an automobile engine. The valve rocker comprises a rocker body which is provided with a shaft hole in clearance fit with a main shaft, one end of the rocker body is provided with an ejector rod used for ejecting a valve lifer and adjusting valve clearance, the other end of the rocker body is provided with a roller used for making contact with an engine crankshaft cam, the ejector rod is in threaded connection with a threaded hole in one end of the rocker body, a bulb is arranged at the lower end of the ejector rod and provided with a cushion block, the upper end face of the cushion block is provided with an inwards-concave arc surface with the shape and the size matched with those of the surface of the bulb, a connecting frame is arranged between the cushion block and the lower end of the ejector rod, the lower end of the ejector rod is sleeved with the upper end of the connecting frame in a sliding mode, swing clearance exists between the upper end of the connecting frame and the lower end of the ejector rod, and the lower end of the connecting frame is connected with the outer side wall of the cushion block. The valve rocker for the automobile engine is not prone to abrasion, long in service life and low in noise and makes contact with the valve lifter all the time.

The invention discloses an energy-saving efficient plastic granulator, a feeding screw rod is rotationally arranged in a feed barrel, a scraper plate is rotationally arranged in a granulation extrusion cavity, a scraping block is arranged on the excircle of the scraper plate, the scraping block is closely attached to the inner cylinder wall of an extrusion die cylinder, the cylinder wall of the extrusion die cylinder is provided with extrusion holes, and a rotational cut-off tool is arranged on the outer cylinder wall of the extrusion die cylinder; the energy-saving efficient plastic granulator is characterized in that: the inner cylinder wall of the feed barrel is provided with a plurality of vertical ribs, the vertical ribs pass through, from up to down, the whole feed cylinder height, the top circle of the vertical ribs is matched with the excircle of the feeding screw rod, adjacent vertical ribs, and the inner cylinder wall of the feed barrel and the excircle of the feeding screw rod enclose a space to form an inner air circulation channel of the feed barrel. The energy-saving efficient plastic granulator uses the scraping block to grind a material to produce heat to melt the material for plastic granulation, the energy-saving efficient plastic granulator can always smoothly exhaust in the working process, and the unique scraper plate is designed to avoid local overheating of the material so as to avoid obstruction of heat transfer, so that automatic control of blanking and feeding can be achieved, and the entire normal high-speed granulation process and high granulation quality can be ensured.

The invention discloses a diaphragm with dual-effects of reflecting and transmission and a manufacturing method thereof. The diaphragm comprises a reflecting layer, a pressure-sensitive adhesive layerand a release layer, and the pressure-sensitive adhesive layer is adhered with the release layer; the diaphragm further comprises a transmission layer adhered with the reflecting layer and adhered with the pressure-sensitive adhesive layer, and fine particles are arranged in the transmission layer. The transmission layer is arranged at a lower surface of the reflecting layer, the light intensityattenuation when irradiation light ray of an external lighting source irradiating from an upper surface of the reflecting layer penetrates the transmission layer arranged at the upper surface of the reflecting layer in the prior art is fundamentally solved, and the defect that the product is short in service life since the transmission layer on the upper surface of the reflecting layer quickly ages after being influenced by the light, the moisture, the temperature change and like external environment factors in the prior art is effectively solved; the reflected light intensity of the product is greatly improved, the service life of the product is effectively prolonged when the reflecting performance, the caution and identification effects of the product are effectively improved.

The invention discloses a methane digester, which comprises a gas storage chamber and a fermentation chamber, a feed pipe and an air outlet pipe communicated with the gas storage chamber, and a stirrer, an annular hole is opened on the outer wall of the gas storage chamber, and the stirring shaft of the stirrer passes through the Extending into the fermentation chamber, the stirring shaft is provided with a stirring blade located in the fermentation chamber, a card cover is set on the stirring shaft located outside the air storage chamber, a discharge pipe is arranged in the fermentation chamber, and the top of the air storage chamber is fixedly connected with The solar heat collector is connected with a heat collecting return pipe, the fermentation chamber is fixedly connected with a compartment plate, the stirring shaft is a hollow stirring shaft, the stirring blade is a hollow stirring blade, and the hollow stirring shaft and the hollow stirring blade are All have defoaming holes, and a vacuum defoamer is connected to the top of the stirring shaft. By installing solar heat collectors, a good temperature in the fermentation room can be maintained, and the use of partition boards can fully ferment the fermentation materials, thereby greatly increasing the gas production of the biogas digester.

The invention relates to a vehicle and a force transmission structure thereof. The force transmission structure comprises a first force transmission assembly, a second force transmission assembly anda third force transmission assembly which are coupled with one another. The first force transmission assembly comprises a front anti-collision beam capable of transmitting force, a front longitudinalbeam, a first force transmission module, a second force transmission module, a threshold, a middle channel and a sleigh plate. The second force transmission assembly comprises a front end beam capableof transmitting force and an A column side wall; the third force transmission assembly comprises a front auxiliary frame assembly capable of transmitting force, a second force transmission module anda threshold. According to the vehicle and the force transmission structure thereof, when collision occurs, the front anti-collision beam, the front longitudinal beam, the first force transmission module, the second force transmission module, the threshold, the middle channel, the sleigh plate, the front end beam, the A column side wall and the front auxiliary frame assembly are arranged, structural failure caused by the single transmission path can be avoided, the collision force can be dispersed, transmission of the collision force is facilitated, and the safety performance is high.

The invention relates to a surface treatment process of a chain, a gear and a bearing. The process comprises the following steps of: polishing the surface of a chain, a gear or a bearing, firmly clamping the non-friction force surface of the polished spare part, putting in vacuum, introducing nitrogen gas, heating to 900 DEG C under -1 atmospheric pressure and introducing methanol decomposition gas for penetrating carbon group elements; and then, emitting the decomposition gas, introducing nitrogen gas again to reach 1 atmospheric pressure, then, cooling to 200 DEG C, keeping the temperature for 12 h and naturally cooling to a room temperature. The invention has the advantages of realizing a uniform penetration process, reasonably dispersing the internal structural stress in the spare part into constant penetration layers and surely preventing the spare part from being influenced by the internal stress in the operation process. In addition, the surface smoothness and the hardness of the spare part can reach higher standards, and common dust or sand can not cause surface scratches or influence friction in the transmission process.

The invention relates to a vibration-type injection pump nozzle feed inlet material distribution device. The vibration-type injection pump nozzle feed inlet material distribution device comprises a material hopper, an injection pump nozzle, and a material distribution device; a powder material inlet of the injection pump nozzle is connected with the bottom of the material hopper; the material distribution device is arranged in the material hopper; the material distribution device comprises a vibration basket assembly, a vibration damping pad, a support ring, a lift rod, and lift hooks; the rubber vibration damping pad and the support ring are arranged at the lower end of the vibration basket assembly in coaxial manner successively; the lower end of the support ring is designed to stretch,and is fixedly arranged in the material hopper; the vertical lift rod is designed to penetrate the center of the vibration basket assembly in a coaxial manner; the lower end of the lift rod is uniformly fixedly provided with a plurality of lift hooks in radial direction. According to the vibration-type injection pump nozzle feed inlet material distribution device, full utilization of fluid kineticenergy and potential energy generated when powder material is poured into the material hopper is realized, no extra energy power is needed, the optimal technology adaptability is achieved, the highest working efficiency is achieved, and high efficiency energy saving is realized.

The invention belongs to the technical field of medical chemistry and particularly relates to a pharmaceutical composition and a preparation method thereof. According to the provided pharmaceutical composition containing fesoterodine and the preparation method of the pharmaceutical composition, dextrin, maltodextrin, mannitol, cyclodextrin and/or sucrose are selected as stabilizers, and the stability of the pharmaceutical composition containing fesoterodine is greatly improved by optimizing the compatibility of components and improving process conditions. In addition, by pretreating a main drug of fesoterodine, not only are the problems solved that fesoterodine is likely to be hydrolyzed and oxidized under high-temperature and high-humidity conditions, but also the problem is solved that pharmaceutically acceptable excipients used in existing fesoterodine pharmaceutical compositions cause gastrointestinal side effects; the pharmaceutical composition has application properties in a wider range.

The invention relates to a road traffic simulation algorithm considering group benefits. According to the algorithm, a road is no longer regarded as a node, but regarded as a wide road section; and meanwhile, when pedestrian individuals select a road entrance, the pedestrian individuals are not used as pure individuals any more, but start from the group, and the position of the road entrance is determined according to the relative position of the pedestrian individuals in the group. Compared with an algorithm taking a road midpoint as a target entrance and taking a nearest distance point as atarget entrance, the algorithm provided by the invention has the advantages that the passing space can be fully utilized, the crowd is reasonably dispersed at the road entrance, and the phenomena of congestion and crowd distribution concentration existing in a conventional target selection method taking the road midpoint as the target entrance and taking the nearest distance point as the target entrance are effectively solved, so that the computer simulation of crowd behaviors is more realistic.

The invention discloses a method for preventing and killing Oides duporti. By virtue of circulating application of a medical fertilizer from November to December, the incubation rate of Oides duportiova and the pupation rate of Oides duporti pupae are decreased, and the population number of the Oides duporti in a field is decreased; and by virtue of a hot smog method in a full outbreak period from March to April and from July to August, pesticide smog with high concentration and high density is utilized for carrying out long-term enshrouding treatment, so that Oides duporti larvae and adult Oides duporti are difficult to hide, and 95% of prevention and treatment effects or above can be achieved through two treatment processes.

The invention discloses a convex-concave mirror light concentrating type water tank power generation device and relates to the technical field of water tank power generation. The convex-concave mirrorlight concentrating type water tank power generation device comprises a base, a first fixing plate and a water pump; a first fixing ring, a second fixing ring and a sliding plate are fixed to one surface of the base from outside to inside in sequence; the sliding plate is located in the cavity formed by the first fixing ring and the second fixing ring; a slotted hole is formed in the surface of the base, and a sliding block is fixed to the surface of the first fixing plate. According to the convex-concave mirror light concentrating type water tank power generation device, through the cooperation of a concave mirror and a convex lens, light can be effectively concentrated, and therefore the utilization rate of the light can be improved, and the device is enabled to generate electricity faster and more effectively; a second gear is driven to rotate by a motor and matched with a sliding block on a first fixing block to slide along the sliding plate arranged between the first fixing ringand the second fixing ring, so that the concave mirror of the device can be timely changed with the change of illumination, the device can generate electricity better and make full use of the illumination.