87results about How to "Optimized structural form" patented technology

Nanowhiskers are grown in a non-preferential growth direction by regulation of nucleation conditions to inhibit growth in a preferential direction. In a preferred implementation, <001> III-V semiconductor nanowhiskers are grown on an (001) III-V semiconductor substrate surface by effectively inhibiting growth in the preferential <111>B direction. As one example, <001> InP nano-wires were grown by metal-organic vapor phase epitaxy directly on (001) InP substrates. Characterization by scanning electron microscopy and transmission electron microscopy revealed wires with nearly square cross sections and a perfect zincblende crystalline structure that is free of stacking faults.

The invention relates to a combined framework non pull rod type glass product hydraulic press with adjustable stroke, comprising a stand platform, a supporting post, an upper transverse beam, a main working oil cylinder, a slide block, a lower transverse beam and an electric control box which is mounted at the side of a machine body. The combined framework non pull rod type glass product hydraulicpress with adjustable stroke is characterized in that the internal side of the supporting post is provided with a shoulder; the upper transverse beam and the lower transverse beam are provided with shoulders, and the upper transverse beam and the lower transverse beam are fastened with the shoulder of the supporting post through the shoulders and bolt fastening components to form a gantry framework type machine body structure; and the lower plane of the upper transverse beam is provided with a gate device. The combined framework non pull rod type glass product hydraulic press with adjustablestroke has simple and reasonable structure as well as convenient installation and connection, lightens of the weight of a main machine, saves large amount of steel, greatly reduces the manufacture cost of the hydraulic press as the main working oil cylinder adopts a cylinder action type slide block structure inside which a plunger is totally mounted to result in the reduction of the length of an oil cylinder by approximate 4/5 and reduction of oil consumption of the hydraulic press by at least 4/5. The total power and the pump energy of the electric motor of the hydraulic press are below 50 percent of those of the traditional hydraulic press, the electric energy and industrial oil are obviously saved, and the production cost can be reduced for users.

The invention discloses a novel straight-strut electrostatic spinning spray nozzle, which belongs to the field of electrostatic spinning. The novel straight-strut electrostatic spinning spray nozzle comprises a connecting piece, a drainage core and a straight strut, wherein the connecting piece is in threaded connection with the drainage core; the drainage core is in screw connection with the straight strut; a drainage groove for material flow and an annular balancing groove for material redistribution are formed on the drainage core; a straight strut groove surface for material flow is formed on the straight strut; and the straight strut is provided with an independent temperature control device for heating, and after molten liquid or melts are distributed on the straight strut uniformly and an electrostatic field is added, multiple strands of spraying streams are formed at the top end of the straight strut. The novel straight-strut electrostatic spinning spray nozzle improves the efficiency of melt-electrostatic spinning greatly, and optimizes the arrangement structure of spinning fibers.

The invention relates to a pulse detonation and rotary detonation combined multi-channel combustion chamber which comprises a pulse detonation combustion cavity, a first-stage rotary detonation combustion cavity, a second-stage rotary detonation combustion cavity, a third-stage rotary detonation combustion cavity, an air and fuel injector and a combustion chamber exhaust cavity. By combining the structural characteristics of a pulse detonation combustion chamber and a rotary detonation combustion chamber, a combined multi-channel detonation combustion chamber structure is formed, and when the rotary detonation combustion chamber and the pulse detonation combustion chamber work at the same time, the problem that the working stability of the combustion chamber is reduced due to intermittent exhaust of the pulse detonation combustion chamber can be effectively solved; meanwhile, the circulation area of the combustion chamber can be effectively increased, and the thrust-weight ratio of the combustion chamber is increased; and the output power of the combustion chamber can be effectively adjusted by controlling whether different combustion chambers are ignited or not. The working stability of the combustion chamber is guaranteed, the space utilization rate of the combustion chamber is increased, the output power of the combustion chamber is increased, and the adjusting range of the output power of the combustion chamber is widened.

The invention relates to an internal expanding pile hanging device, which comprises a driving cone, a cylinder, a cylindrical body head, a guide cone, a balance arm and a plurality of external expanding blocks; wherein, two ends of the cylinder enable respective solid connection with the cylindrical head and the guide cone, and an enclosed chamber is formed; an internal diameter of the cylindrical body head is partially cooperated with the cylinder at the upper part of the driving cone for realizing axial movement of the driving cone in the enclosed chamber; simultaneously, the balance arm is arranged on the cylindrical body head, the driving cone is cooperated with a plurality of windows arranged on the cylinder through external expanding blocks. The device of the invention is capable of hanging and moving the large-scale pile tubes with a fast , convenient and high efficient mode, the pile tube can be positioned at a correct work position, the design for a hanging point position and redundant welding work can be omitted, so that a system is easily controlled; the adaptable caliber scope of a suspender is increased, and one device with multiple functions can be realized; when the pile tube is hanged up, because the driving cone is in an inverted triangle form, a gravity self-locking principle is realized on the basis of theory, thereby the security of the pile tube in air can be ensured.

The invention discloses a straight-through type three-cavity silencer. The straight-through type three-cavity silencer comprises a silencer barrel, an air flow pipeline, a first cavity partition and a second cavity partition, wherein the air flow pipeline is provided with an air inlet end and an air exhaust end, the slicer barrel is partitioned into three cavities by the first cavity partition and the second cavity partition, a plurality of interlayer partitions are arranged in each of the three cavities, a resistive silencing layer is arranged in the middle of each interlayer partition, each cavity is partitioned into sub-cavities which form a cavity group by the interlayer partitions, the air flow pipeline penetrates the cavity groups sequentially, and parts, of the air flow pipeline, in the cavity groups are provided with a plurality of breathing holes which are distributed in a staggered manner. The straight-through type three-cavity silencer has the advantages that except for resistive silencing formed by original destructive interference, the resistive silencing layers are further subjected to noise reduction, effects of the resistive silencing layers are enhanced by a naturally formed airflow-circulating path with partial turbulences, the effect of noise reduction is more significant, and the straight-through type three-cavity silencer is simple in structure, stable and beneficial to radiating.

The invention discloses a double-pattern pipe dust-proof heat exchanger, which consists of outer cylinder and inner cylinder, wherein the inter cylinder is encased in the outer cylinder; the scattering shape recuperative fin is set on outer side wall of inner and outer cylinders, which is wrapped by recuperative pipe to display spiral shape. The invention improves the recuperative efficiency, which possesses the excellent dust-proof effect due to dust accumulation quantity reduction.

The invention relates to a double-joint shallow-embedded shape steel type bridge expansion device comprising two edge beams, a middle beam and a plurality of trimming beams. The two edge beams are mounted in the positions, on the two sides of an expansion joint, of a bridge body correspondingly; the middle beam is located between the two edge beams and connected with the edge beams through elastic connecting mechanisms correspondingly; the trimming beams are arranged in sequence at intervals in the transverse bridge direction and all cross the expansion joint; a plurality of penetrating channels are formed in the middle beams; the trimming beams penetrate through the corresponding penetrating channels and are fixedly connected with the middle beams; and waterproof adhesive strips are clamped between middle beams and the two adjacent edges correspondingly and bent in sequence in the bridge direction to form a corrugated structure. According to the double-joint shallow-embedded shape steel type bridge expansion device, the trimming beams are fixed in the penetrating channels in middle beam shape steel, accordingly the height of the whole expansion device is decreased, and thus it is possible that the modular double-joint type bridge expansion device is embedded in a shallow mounting notch.

The invention discloses an adjusting mechanism for a steering engine. The mechanism comprises a shell, a gear rack and an adjusting nut plug, wherein one side of the gear rack is provided with a support block; a spring is arranged in a cavity formed by the support block and the adjusting nut plug; one end of the spring is connected with the support block, while the other end is connected with the adjusting nut plug; one end of the support block is arranged in the adjusting nut plug and can move leftwards and rightwards in the adjusting nut plug; the support block is provided with an orifice communicated with the cavity; and the orifice is formed at one end, which is connected with the gear rack, of the support block. The structural form of the conventional support block is improved, so that the support block can bear larger support force, the contact of the support block and the adjusting nut plug can be avoided and reduced and the collision of the gear rack and a gear can be improved to solve the problem of abnormal sound.

The invention discloses a multi-channel three-cavity silencer which comprises a silencer barrel body, an air inlet tube and an exhaust tube and further comprises a first cavity partition plate and a second cavity partition plate, wherein the first and second cavity partition plates divide silencer barrel body into a first cavity, a second cavity and a third cavity, the air inlet tube extends into the first cavity, the exhaust tube extends into the third cavity, a second cavity central tube crossing the cavities is arranged in the second cavity in the middle, the cavities are provided with multiple partition plates, the partition plates respectively divide the cavities into cavity groups formed by sub-cavities, and the inside of the second cavity central tube is a resistive silencing portion made of a silencing material. A fin structure is added for the multi-channel three-cavity silencer, the multi-channel three-cavity silencer is provided with the sub-cavities and the resistive silencing portion, and a combined silencing structure is formed to improve the cavity utilization rate and noise reduction effect. In addition, a metal layer of the fin structure effectively helps a silencing layer absorbing sound wave energy and enables the barrel body to effectively radiate heat.

The invention discloses a full-rotating dynamic pointing type rotating guide system and guide controlling method. The full-rotating dynamic pointing type rotating guide system comprises an upper shell body and a lower shell body. A hollow shaft coaxial with the upper shell body is arranged in the upper shell body, one end of the hollow shaft is connected with the upper shell body in a sealing mode, the other end of the hollow shaft is connected with a hollow transmission shaft, and a guide driving mechanism is arranged between the end of the hollow shaft and the upper shell body; the guide driving mechanism, the upper shell body and the hollow shaft form an oil pressure closed cavity, and the pressure of drilling liquid in the oil pressure closed cavity is higher than the pressure of drilling liquid outside the guide driving mechanism; the guide driving mechanism drives a deflection wheel mounted on the transmission shaft in a sleeving mode to conduct lateral deflection; a universal joint used for keeping the pointing direction is mounted on the transmission shaft; a drill is mounted at the end of the transmission shaft; and the deflection wheel conducts lateral deflection under driving of the guide driving mechanism and pushes the inner wall of the lower shell body outward and continuously in an abutting mode, and dynamic continuous lateral force with the direction being perpendicular to the inner wall of the lower shell body is produced, so that the lower shell body drives the drill to rotate by a certain angle along the rotating center of the universal joint to achieve the purpose of dynamic pointing.

The invention discloses an inflow vertical shaft for reducing the gas explosion intensity of an urban deep drainage system. The inflow vertical shaft is composed of an annular horn opening, a cylinder, cylinder wall gas holes, gas hole round rings, partition plates, ventilating holes and the like. When water flow carrying a large amount of intercepted gas mass flows into the inflow vertical shaftthrough a drainage pipeline, the annular horn opening guides gas to an interlayer between the vertical shaft and the cylinder, the staggered gas hole round rings sufficiently cut large gas mass, and intermittent strenuous surging of the inflow vertical shaft can be effectively relieved; bubbles formed after cutting are discharged out of the interlayer, the other part enters the cylinder through the cylinder wall gas holes, and the gas discharge pressure of the interlayer can be greatly relieved; the bubbles rise along the inner wall of the cylinder, the partition plates are arranged on the cylinder wall, the ventilating holes in the partition plates are staggered in pairs, it can be effectively avoided that the bubbles aggregate again to form large gas mass, meanwhile the rising speed of the bubbles is reduced, the gas discharge pressure of the cylinder is greatly relieved, and the gas explosion phenomenon of the inflow vertical shaft of a drainage pipeline is reduced.

The invention provides an oxygen lance slag scraper. The oxygen lance slag scraper comprises a fixed frame which is symmetrically provided with a driving shaft and a driven shaft; the two ends of thedriving shaft are provided with a first connection rod and a second connection rod which rotate around the axis of the driving shaft; one end of the driven shaft is provided with a third connection rod which rotates around the axis of the driven shaft; the driving shaft is connected with a driving mechanism through the first connection rod, and the second connection rod is connected with the thirdconnection rod through a connection rod assembly; and the driving shaft and the driven shaft are each provided with a scraper blade assembly, and the two scraper blade assemblies are symmetrically distributed. According to the oxygen lance slag scraper, synchronous starting and stopping of the scraper blade assemblies can be achieved through a plane four-rod mechanism, connection rod operation isstable, the rigidity of the slag scraper is improved, the structural style of the slag scraper is optimized, and the service life of the slag scraper is prolonged; and meanwhile, by arranging a plurality of scraper blades, steel slag on the outer wall of an oxygen lance has a plurality of force bearing points, thus, the steel slag can be crushed more easily, and the slag scraping effect is improved.

The invention discloses a small driving rake head and belongs to the technical field of ships. The device comprises a fixing body. The front end of the fixing body is provided with detachable rake teeth, the fixing body is connected with a movable cover, the movable cover is connected with a hydraulic oil tank, and the hydraulic oil tank controls the movable cover to move. The small driving rake head can be used in small dredgers.

The invention provides an automatic clamping telescopic winding device suitable for packing straps. The automatic clamping telescopic winding device comprises a gas expansion winding shaft for fixingand supporting a winding core, a fixed discharging plate, an axial drive assembly and strap pressing sheets around the circumference of the gas expansion winding shaft, wherein strap pressing sheets are provided with a radial drive assembly for driving the strap pressing sheets to reciprocate radially along the gas expansion winding shaft; and the axial drive assembly is used for driving the gas expansion winding shaft and the strap pressing sheets synchronically reciprocate in the axial direction of the gas expansion winding shaft. The axial drive assembly drives the gas expansion winding shaft and the strap pressing sheets to match with and clamp the winding core and the packing straps on the winding core for automatic winding; the packing straps are automatically unwound through the strap pressing sheets after being wound; and the resetting of the axial driving mechanism drives the gas expansion winding shaft to reset and enables the winding core and a fixing discharging plate to match with each other to complete the automatic winding process, so that the structure of an unwinding device of a traditional winder is improved and the working efficiency of the winder is effectivelyimproved.

The invention discloses a structure optimization design method of a powder injection molding supercharger turbine. The structure optimization design method is characterized that the fact that turbine stress concentration factor is minimum under the condition that a turbine structure is lightest and the rotation speed is the highest is used, a target function is optimally designed under the premise that the turbine structure satisfies the strength requirement and the service life requirement, the maximum equivalent stress under the highest rotation speed work state of the turbine is used as the constraint condition, and the turbine structure weight reduction feature geometric size is used as the design variable to build the optimal mathematic model of the turbine structure. The method has the advantages that a powder injection molding process is used, and inherent defects such as heat cracks, shrinkage cavities and shrinkage porosities of precision casting are eliminated effectively; the constraint condition during optimization can be reduced, the existing turbine structure form can be changed, turbine structure can be optimized maximally, the sizes of parts of the turbine are determined by the method, turbine weight can be reduced maximally under the premise that the turbine structure strength requirement and the application requirement are satisfied, and turbine light weight is achieved.

The invention relates to a stability strengthening structure of a continuously welded rail on a bridge. The transversal stability of the continuously welded rail on the bridge is increased. A plurality of withholding clamp units are arranged between the rail bottoms of two guard rails among sleepers, and each withholding clamp unit comprises a bottom plate 4 fixedly connected with the guard rails, a buckling plate 5 connected with the bottom plate, and a rigid connecting rod 8. The rigid connecting rods are obliquely connected between the buckling plates of the units. The strengthening structure is installed between the guard rails and cannot disturb a track bed. The flexural rigidity of the guard rails is fully utilized, the whole flexural rigidity of a track frame is increased, and the stability of the continuously welded rail is obviously improved. The track structure style is improved, the influence from parameter variance is lower, and the strengthening structure has the advantages of convenience in installation and disassembly and no influence on maintenance and repair work.

The invention relates to a continuous casting roller. The continuous casting roller comprises at least two splicing assemblies, and each splicing assembly comprises a roller sleeve, and a core shaft; after the roller sleeves and the core shafts are in interference fit, a first radial hole, a second radial hole and a cooling medium flowing groove in the same core shaft are covered with the same roller sleeve to form a cooling channel, the part, located between the corresponding roller sleeve and the axial end face of the corresponding core shaft, of the corresponding core shaft forms an installation part, when two adjacent splicing assemblies are spliced, the first axial blind hole in the core shaft of one splicing assembly is matched with a second axial blind hole in the core shaft of the other splicing assembly; and the bearing assemblies are arranged on the installation parts in a sleeving mode and is fixed with the installation parts. The C]continuous casting roller has the advantage of being easy to mount and dismount.

The invention discloses a thin oil lubrication drum-shaped tooth type coupling which comprises a spindle, a roller end assembly E, a tooth end assembly F, an oil inlet ring assembly H and a spring assembly. The roller end assembly E, the tooth end assembly F and the oil inlet ring assembly H are arranged on the spindle. The spring assembly is arranged in the spindle. The roller end assembly E is an adjustable roller end assembly and comprises a roller end shaft sleeve, a roller end connecting disc, an outer centering, an inner centering, a roller end top block and a roller end outer tooth ring. The roller end connecting disc and the outer centering are connected with the roller end shaft sleeve. The inner centering and the roller end top block are connected with the roller end connecting disc. The roller end shaft sleeve is engaged with the roller end outer tooth ring through inner teeth. The roller end outer tooth ring is matched with the spindle. By adoption of the thin oil lubrication drum-shaped tooth type coupling, the defects of existing thin oil lubrication drum-shaped tooth type couplings are overcome, the overall service life of the thin oil lubrication drum-shaped tooth type coupling is prolonged, and the requirements of continuous rolling mill characteristics are met; and meanwhile, the production cost of a hot continuous rolling factory is also lowered, and benefits are created.

The invention discloses a sea water taking instrument for a liquefied natural gas receiving station, and belongs to the field of sea water taking engineering of liquefied natural gas receiving stations. The sea water taking instrument comprises a quay wall type member, a single-pump and single-channel system and a draining blind drain, wherein the quay wall type member is built below the embankment of a working ship wharf; the single-pump and single-channel system is arranged in a water taking pump room; the draining blind drain is built between the quay wall type member and the water taking pump room; the quay wall type member is communicated with the draining blind drain; the draining blind drain is communicated with the single-pump and single-channel system. In the quay wall type member, a water taking port and the working ship wharf are combined into a whole, so that the water front of the wharf is utilized fully; the water taking port is connected with a flow channel of the water taking pump room through the draining water blind drain, so that the influence of open sea waves on the water level fluctuation of the water pump flow channel is eliminated remarkably; a sea water fire pump is arranged at the front end of a sea water taking pump, and share one water taking flow channel with the sea water taking pump, so that the floor area is reduced, and the civil engineering quantity and investment are lowered.

Espresso coffee machine comprising a reservoir for the water (20), a pump (21) for delivering the said water to a boiler (24), a hot water supply unit (2, 102, 122, 4, 304), and filter holder means (1, 301, 3, 103) for housing a portion of ground coffee (16), preferably pre-packaged, and provided with coffee delivery means (201; 203), characterized in that the said supply unit (2, 102, 122, 4, 304) and the said filter holder means (1, 301; 3, 103) are coupled together with a seal and the trajectory of the coupling movement lies on a plane substantially perpendicular to the median plane of coupling of the said supply unit (2, 102, 122; 4, 304) and the said filter holder means (1, 301; 3, 103), the facing surfaces of the said supply unit (2, 102, 122; 4, 304) and the said filter holder means (1, 301; 3, 103) coming into contact only at the time of their coupling.