21results about How to "Improve fatigue" patented technology

The utility model discloses a high-speed powder mixer, which relates to the technical field of mixers, and comprises a rack, a support plate is arranged outside the rack, support pieces are arranged at the top of the support plate, a turnover shaft is rotatably arranged between the two support pieces, a mixing tank body is arranged on the turnover shaft, and the mixing tank body is provided with a plurality of stirring blades. A high-speed motor and a wall scraping motor are arranged outside the mixing tank body, the high-speed motor is connected with a shear knife, cavities are formed in the two ends of the overturning shaft, a cable is arranged in the cavity in one end of the overturning shaft, a communicating pipe is arranged in the cavity in the other end of the overturning shaft, and the communicating pipe is connected with a water pipe and an oil pipe on the tank body. The supporting structures at the two ends greatly increase the structural strength of the overturning shaft, the stress condition of the overturning shaft is greatly improved, the bearing capacity of the overturning shaft is increased, the abrasion and fatigue conditions of the bearings are improved, the service life of the bearings is prolonged, and the supporting structures at the two ends guarantee the stability of the whole equipment during high-speed operation.

This utility model relates to the field of home furnishing technology, specifically to a mattress support structure that adapts to the human body curve. It includes a support layer composed of several elastic pockets, each containing several ellipsoids. The arrangement of multiple elastic pockets, each containing several ellipsoids, forms a multi-unit, collaboratively responsive adaptive human body curve support system. When pressure is applied by the human body, the elastic pockets undergo localized deformation, and the internal ellipsoids can shift and slide within the elastic pockets, rearranging and redistributing the support force. This effectively adjusts the distribution of support force, achieving personalized adaptive support to different body shapes and sleeping positions, thus improving comfort. It effectively avoids common problems in traditional mattresses, such as failure to adapt to the human body curve, insufficient fit leading to localized pressure or unsupported areas.

This invention belongs to the field of impact impeller technology, and specifically relates to a detachable water bucket impact impeller structure and its assembly method. The technical solution is as follows: A detachable water bucket impact impeller structure includes a hub and several water buckets. Each water bucket includes a handle and blades. Several mounting grooves are provided on the edge of the hub, and the handle mates with the mounting grooves. A wedge-shaped key is provided between the handle and the mounting grooves. A limiting ring is bolted to the surface of the hub, and the limiting ring covers the wedge-shaped key. This invention provides a detachable water bucket impact impeller structure and its assembly method, facilitating water bucket replacement and ensuring reliable connection between the water buckets and the hub.

This invention belongs to the field of high-content ceramic / metal composite material preparation technology, specifically relating to a high-fatigue-strength B4C / Al composite material and its preparation method. This invention employs chemical vapor deposition to generate CNTs in situ on the surface of micro / nano-scale B4C particles. These CNTs are then thoroughly mixed with aluminum alloy powder, and a billet is prepared using SPS plasma discharge sintering equipment. After grinding and polishing, the billet is processed using a high-frequency current rolling test bench to obtain a high-fatigue-strength B4C / Al composite material. This invention aims to improve the interfacial bonding quality of ceramic / metal composite materials and inhibit harmful reaction products through the modification effect of CNTs; the addition of high-frequency current-assisted rolling enhances the fatigue resistance of the composite material, resulting in a B4C / Al composite material with excellent comprehensive performance.

The application discloses an anchoring hook, a valve stent and a valve prosthesis. The anchoring hook body comprises a straight rod segment, a bending segment and a free segment arranged in sequence from a root to a head. A slit has a starting point in the root area of the straight rod segment, and the slit extends from the starting point along the length direction of the anchoring hook body through the straight rod segment, the bending segment and at least a part of the free segment. The slit penetrates the anchoring hook body in the thickness direction of the anchoring hook body, and the width of the slit in the width direction of the anchoring hook body satisfies that the bending stiffness of the anchoring hook body changes within a predetermined threshold range compared with that before the slit is formed. The anchoring hook in the application is slit on the body, and the slit can enhance the torsional compliance of the whole anchoring hook without affecting the bending stiffness of the anchoring hook body. When subjected to multi-dimensional interaction force caused by continuous contraction of the heart or subjected to torsional force that makes the anchoring hook have a lateral bending or torsional tendency, the anchoring hook in the application has good fatigue performance.

The invention discloses a double-beam synchronous following anti-reflection device for laser forging printing, which is characterized in that the specific wavelength combination of 1064nm powder bed cladding laser and 532nm green ultrafast strengthening laser is adopted to impact a fusion layer, and a special reflecting coating with the wavelength of 532nm is coated on a scanning galvanometer mechanism; therefore, the coating can selectively transmit laser of 1064nm and efficiently reflect laser of 532nm at the same time by utilizing the obvious wavelength difference between the two; on the basis, diffuse reflection of green ultrafast laser can be selectively isolated, so that damage to the laser caused by return light is fundamentally avoided, stable work of equipment in a long-time and high-power following mode is ensured, and therefore, the device is very suitable for large-scale application and popularization in the technical field of laser forging printing.

The application provides a traditional Chinese medicine composition with the effect of reducing triglyceride, total cholesterol and blood sugar and application thereof, and relates to the technical field of traditional Chinese medicines.The traditional Chinese medicine composition is composed of chicory, rhodiola, cat's claw, mulberry branch, celery seed and the like.Compared with the "fragmentation" treatment mode of the conventional antihypertensive, lipid-lowering and hypoglycemic drugs used respectively, the traditional Chinese medicine composition has a significant advantage in the treatment of three high syndromes;through the establishment of a typical three high disease model and the combination of clinical research evaluation, the results show that the traditional Chinese medicine composition has outstanding effects in reducing blood sugar, improving vascular endothelial function and protecting liver and kidney function, and also shows good effects in reducing blood pressure and regulating blood lipids;in conclusion, the traditional Chinese medicine composition can realize the integrated comprehensive curative effect of reducing blood pressure, regulating blood lipids, reducing blood sugar and improving syndromes, and is particularly suitable for patients with three high syndromes combined with metabolic syndrome or outstanding syndromes, and provides a new traditional Chinese medicine scheme with more advantages for the prevention and treatment of three high syndromes and metabolic syndrome.

The utility model relates to the field of garment processing, and specifically relates to a measuring and cutting device for garments, which comprises a cutting and measuring all-in-one machine body, a laser measuring device body is arranged on one side of the cutting and measuring all-in-one machine body, a connecting frame is fixedly connected to one side of the cutting and measuring all-in-one machine body, a mounting plate is fixedly connected to the top of the connecting frame; through the operation of the air cylinder, the rack is smoothly driven to move, the rack and the gear are engaged, the rotating plate drives the connecting rod to eccentrically rotate, the eccentric rotation of the connecting rod can limit the movement of the moving plate by the first limiting assembly, the movement of the electric suction cup is realized, and then the automatic unloading of the garment is realized through the operation of the electric suction cup, so that when the garment is unloaded, not only can the manual operation of the staff be reduced, but also the maintenance can be facilitated under the condition that the cost is low during use, the unloading efficiency is increased, and the cost required during unloading is reduced.

The hydraulic equipment based on the prestress stand column structure comprises a base (101), a workbench (102), a stand column (103), a movable cross beam (104) and a fixed cross beam (106), and is characterized in that the stand column (103) is of a plate frame structure, the plate frame structure is composed of four coamings (1), a plurality of rib plates (2), an upper tensioning plate (3), a lower tensioning plate (3) and tensioning steel bars (4), the rib plates (2) are fixed in the coamings (1) to form a grid structure, and the upper tensioning plate (3) and the lower tensioning plate (3) are fixed on the workbench (102). Each grid structure is provided with a tensioning steel bar (4), the upper end and the lower end of each tensioning steel bar (4) are loaded with prestress through a conical anchorage device (5) and are fixed on the corresponding upper tensioning plate (3) and the corresponding lower tensioning plate (3), and the upper tensioning plate (3) and the lower tensioning plate (3) are installed at the upper end and the lower end of the surrounding plate (1). The hydraulic device is light in structure, uniform in stress distribution, convenient to manufacture and excellent in fatigue performance, the overall performance of the hydraulic device is remarkably improved, and the manufacturing cost is reduced.

The invention belongs to the field of petroleum and natural gas development, and particularly relates to a fatigue life prediction method based on drill string dynamic stress, and the method comprises the following steps: inputting basic parameters: the basic parameters comprise a well track, a bottom drilling tool combination, a drill string structure and drilling parameters; according to a Lagrange equation, a drill string system dynamic model is established; node velocity, displacement and acceleration are obtained through a drill string system dynamics model, and drill string dynamic equivalent stress is calculated according to the node velocity, displacement and acceleration; counting a stress amplitude and a stress mean value by adopting a rain flow counting method; correcting the stress amplitude and the stress mean value by adopting a goodman formula; substituting into an S-N curve and calculating to obtain the fatigue life. According to the method, the fatigue life of the whole-well drill string can be analyzed, the fatigue service life of the whole-well drill string under the working condition is predicted through data analysis and processing, the presented result is the specific service time of the drill string, and the method has a very strong guiding effect on field engineering practice.

This invention relates to the field of hot extrusion manufacturing technology, specifically to a high-strength weldable 6xxx series aluminum alloy profile, its manufacturing method, and its application. The aluminum alloy profile is composed of the following weight percentages: Si: 0.80%~1.2%, Fe≤0.20%, Cu: 0.40%~0.80%, Mn: 0.30%~0.70%, Mg: 0.70%~1.1%, Cr≤0.25%, Zn≤0.10%, Ti≤0.10%, Zr: 0.05%-0.20%, Pb<0.01%, with the balance being Al and unavoidable impurities. The profile meets the following performance requirements: tensile properties, R... m ≥420MPa, R p0.2 ≥330MPa, A 50mm ≥8.0%; Fatigue performance: at r=0.1, N=1×10 7 Under the same conditions, the fatigue strength σ of the smooth sample is ≥145MPa, realizing the lightweight manufacturing of high-speed trains.

This invention belongs to the field of traditional Chinese medicine technology, specifically relating to the application of Ginseng Strengthening Oral Liquid in improving age-related muscle function decline. This invention, through research, is the first to discover that Ginseng Strengthening Oral Liquid can effectively improve age-related muscle strength decline, reduce collagen deposition, significantly improve muscle quality, and improve skeletal muscle damage, thereby effectively addressing age-related skeletal muscle function decline. It can be used to develop effective prevention and intervention strategies for age-related skeletal muscle function and quality decline. Furthermore, while addressing age-related muscle function decline, Ginseng Strengthening Oral Liquid does not cause kidney damage, metabolic disorders, or abnormal liver and kidney weight, demonstrating good systemic safety. Therefore, this invention not only broadens the application scope of Ginseng Strengthening Oral Liquid but also provides a safe and effective drug treatment approach for addressing age-related muscle function decline.

The application discloses a traditional Chinese medicine compound preparation for resisting middle and late malignant tumors with metastasis and a preparation method thereof, and belongs to the technical field of traditional Chinese medicine compound preparation. A three-layered layered targeting matching framework is innovatively constructed, the compound is divided into three functional groups of a targeting evil-eliminating treatment layer, an evil-eliminating and cancer metastasis inhibiting layer and a tonifying layer, and three pathological links of a tumor primary focus, a metastasis path and a body deficiency are accurately corresponded; in view of the three-layered functional medicinal materials, a 30:1, 20:1 and 10:1 differentiated crude drug-dry extract gradient concentration process is matched, and a concentrated pill preparation is prepared by combining grouping directional extraction, grading refining and segmented low-temperature pill making core technologies. The application breaks through the technical short board of traditional Chinese medicine anti-tumor prescription, such as disordered prescription, single process, loss of active ingredients and scattered efficacy, and accurately targets tumor inhibition, metastasis blocking and tonifying and reinforcing by layered matching, and meanwhile, the whole process is adapted to general production equipment of domestic traditional Chinese medicine enterprises, and the process flow is standardized and has strong mass production.

This invention belongs to the field of bridge engineering technology and relates to an ultra-high performance steel-concrete composite cable-beam anchorage structure based on combined force transmission. It includes a diaphragm, PBL connectors, anchor box steel pipe, anchor pipe, end plate, gasket, and composite web. The ultra-high performance steel-concrete composite anchor box and the composite web are connected by welds and filled internally with UHPC to form the ultra-high performance anchor box steel-concrete composite cable-beam anchorage structure. The ultra-high performance steel-concrete composite cable-beam anchorage structure provided by this invention utilizes the ultra-high local bearing capacity of UHPC by filling the square anchor box steel pipe and web, forming a combined force transmission of steel and UHPC, resulting in more reliable force transmission. It also reduces the number of welds, simplifies the structure, improves anchorage fatigue, and can be constructed by factory prefabrication and on-site assembly, effectively shortening the construction period. It is particularly suitable for cable-beam anchorage structures of ultra-long span cable-stayed bridges.

The invention discloses a repairing method for a damaged stringer of a composite T-shaped stringer stiffened wallboard, and relates to the technical field of aviation composite repairing. The repairing method for the damaged stringer of the composite T-shaped stringer stiffened wall plate comprises the following steps that a skin and the damaged area of the stringer are removed to form an opening, and the edge of the opening is polished to form a repairing window. And a skin repairing patch is bonded to the repairing window. Bonding a bottom edge repairing patch on the skin repairing patch; a T-shaped stringer insert is bonded to the bottom edge repairing patch, and the cut stringer is filled with the T-shaped stringer insert; and L-shaped stringer repairing patches are symmetrically laid on the two sides of the T-shaped stringer insert. According to the repairing method for the damaged stringer of the composite T-shaped stringer stiffened wallboard, uniform load transmission, smooth rigidity transition and excellent fatigue performance are achieved, meanwhile, the composite T-shaped stringer stiffened wallboard is light in weight, the smooth pneumatic shape is kept, seamless sealing is provided to prevent corrosion media from invading, and secondary damage caused by drilling in an original structure is avoided.

The invention provides a laser three-dimensional forming preparation method for preparing a gradient reinforced composite material turbine blade of a gas turbine. The method comprises the following steps: ball-milling and mixing nickel-based alloy, nano silicon carbide and boron carbide powder according to a mass ratio of (92-96): (2-4): (2-4); a laser three-dimensional forming technology is adopted, a three-section gradient structure of a non-strengthening area (pure nickel base alloy), a transition area (gradient mixing) and a strengthening area (composite material) is constructed in the root-tip direction of the blade through a two-way powder feeding system, and near-net forming of the functional gradient strengthening turbine blade with the ceramic strengthening phase strengthening at the tip end of the blade and the root part maintaining toughness is achieved. The prepared turbine blade of the gas turbine has excellent high-temperature creep resistance, fatigue resistance, corrosion resistance and wear resistance, works for a long time in severe environments such as high temperature, high pressure, wear and corrosive media, has excellent high-temperature creep damage resistance, low-cycle fatigue damage resistance, corrosion damage resistance and friction damage resistance, and can effectively prolong the service life of the gas turbine.

This invention relates to the field of alloy material preparation technology, and discloses a steel with excellent machinability and fatigue resistance, its preparation method, and automotive parts. The disclosed steel with excellent machinability and fatigue resistance includes a matrix and martensitic-austenitic islands distributed within the matrix; both the matrix and the martensitic-austenitic islands contain carbon and manganese; the concentration of carbon in the matrix is ​​'a', and the concentration of carbon in the martensitic-austenitic islands is 'b', where (1.0~2.0)a=b; the concentration of manganese in the matrix is ​​'c', and the concentration of manganese in the martensitic-austenitic islands is 'd', where (0.6~2.0)c=d. This steel exhibits a small hardness difference between the M-A islands and the matrix. A small hardness difference results in a high porosity. Even when the steel is a high-strength steel, meeting the above requirements for the carbon and manganese concentration difference between the M-A islands and the matrix ensures excellent machinability.

The present application provides a fatigue degree estimation system and a fatigue degree estimation method capable of improving the estimation accuracy of the fatigue degree of a worker. The posture acquisition section of the fatigue degree estimation system of the present application acquires a walking posture assumed by a worker during work. The duration acquisition section acquires the duration of the walking posture. The external force information acquisition section acquires external force information received by the worker when assuming the walking posture. The load estimation section estimates the physical load of the worker caused by the walking posture, based on the walking posture and the external force information received by the worker when assuming the walking posture. The fatigue degree estimation section estimates the fatigue degree of the worker in a walking section, which is an interval during which the walking posture is continuously assumed, based on the duration of the walking posture and the physical load of the worker caused by the walking posture.

The utility model belongs to aerospace technology field, concretely relates to a propeller integral forming die, the utility model discloses a propeller integral forming die includes first mould and second mould, and the first mould has the profiling groove, and the second mould has the profiling boss, and the second mould and first mould buckle and connect, and the profiling boss is used for and the profiling groove plug-in and form propeller forming cavity. Using the propeller integral forming die in the technical scheme can realize the integrated forming of propeller, and the propeller prepared using the propeller integral forming die can significantly improve the structural reliability of equipment propulsion system, reduces the assembly error, and is convenient for dynamic balance debugging.

The invention discloses a chair seat with a waist movement function, which comprises a seat support internally provided with a cavity structure for accommodating parts, at least one group of driving assemblies internally mounted in the seat support, a seat plate positioned right above the seat support and operated by the driving assemblies to perform corresponding actions, and a control module internally mounted in the seat support and used for controlling the movement of the waist. The control module is used for controlling the driving assembly to operate according to corresponding settings so as to drive the seat plate to incline to pull the waist to move; the seat plate can be driven by the driving assembly to incline so as to pull the waist to move, and waist discomfort caused by long-time sitting is effectively relieved.

This invention provides a nourishing chicken soup, its formula, and its preparation method for improving physical weakness caused by staying up late. The soup is made from the following ingredients: 10g white ginseng, 30g sand ginseng, 50g yam, 30g wolfberry, 5 red dates, 8g dried ginger, 30g lotus seeds, 20g codonopsis, 30g coix seed, 30g clematis, 50g scrophularia, 50g rehmannia root, 30g angelica, 30g chuanxiong, 2500ml drinking water, 1200g fresh chicken, and 3-5g edible salt. This nourishing chicken soup, its formula, and its preparation method, designed to improve physical weakness caused by staying up late, follow the principles of traditional Chinese medicine principles. The soup is mild in nature, nourishing without causing dryness or coldness, and effectively improves various symptoms such as fatigue, dull complexion, insomnia, body aches, and weak spleen and stomach. It employs a process that separates the medicinal ingredients from the meat, allowing the thin chicken slices to be eaten after only a short blanching, solving the problem of dry and unpalatable chicken that is traditionally stewed for a long time. The method of eating the meat first and then drinking the soup allows for layered absorption and internal and external regulation, improving the utilization rate of the tonics. Furthermore, the preparation process is simple, suitable for daily family nourishment and standardized mass production.