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125results about How to "Increased footprint" patented technology

Resource utilization method for combined production of biogas and cultivation matrix through utilizing tobacco stalk fermentation

The invention provides a resource utilization method for the combined production of a biogas and a cultivation matrix through utilizing tobacco stalk fermentation. The method comprises the following steps: carrying out anaerobic fermentation of a main fermentation raw material which is waste tobacco stalks generated in the tobacco threshing redrying line to produce the biogas; carrying out solid-liquid separation of a biogas slurry and the tobacco stalks to obtain a tobacco stalk biogas residue and a biogas slurry; purifying the biogas to prepare clean fuels or to be used for electricity generation to provide partial energy for a plant area; and decomposing the tobacco stalk biogas residue, and carrying out dry molding to prepare the cultivation matrix, wherein the biogas slurry returns to a fermentation system to be recycled or to be used as a liquid organic fertilizer. The method provided by the invention has the advantages of simple production operation, concentrated and stable raw material, scale production benefiting, low production cost, realization of no pollution, zero discharge and cycle utilization of waste tobacco stalk resources of a threshing redrying plant, and generation of good economic, ecological and social benefits.
Owner:ZHENGZHOU UNIV

Equipment and method for improving sand lined casting efficiency

The invention relates to equipment and a method for improving sand lined casting efficiency, and belongs to the technical field of iron sand lined casting. The equipment comprises a supporting frame composed of an upper beam, a base and a vertical pillar between the upper beam and the base, a sand adding and jetting device, and a rotating mechanism arranged on the base. The equipment is characterized by further comprising a four-station working platform, a lifting type sand jetting head and a lifting type roller bed opening and closing mechanism, wherein the four-station working platform is fixed on the rotating mechanism; the lifting type sand jetting head is connected at one side of the upper beam, and the lifting type roller bed opening and closing mechanism is connected at the other side; the lifting type sand jetting head and the lifting type roller bed opening and closing mechanism are respectively arranged on left and right sides; and the four-station working platform is arranged below the lifting type sand jetting head and the lifting type roller bed opening and closing mechanism. The equipment disclosed by the invention is reasonable in structure and design, convenient to clean mold, high in sand lined casting efficiency and convenient for users to operate.
Owner:浙江省机电设计研究院有限公司

Novel plastic infusion bag and manufacturing method thereof

The invention discloses a novel plastic infusion bag and a manufacturing method of the novel plastic infusion bag. The novel plastic infusion bag comprises a bag body, an infusion bag opening and a hanging structure, wherein the infusion bag opening and the hanging structure are connected with the two ends of the bag body respectively,. The bag body is of a flat shape in the state of being filled with liquid medicine, that is to say, the width of the bag body is larger than the thickness of the bag body when the bag body is on a cross section perpendicular to a connecting line of the infusion bag opening and the hanging structure. Guide ribs are symmetrically arranged on thickness surfaces on the two sides of the bag body. In the infusion process, the bag body can deform along the guide ribs on the two sides of the bag body so that serious deformation and distortion cannot occur, and safety and reliability in use are improved. The manufacturing process of the novel plastic infusion bag comprises the step of blowing the bag body to make the bag body be formed without soldering seal of four edges, so that the microleakage problem is solved; since all process steps are completed in one time period, time for storing the bag body is eliminated, and the possibility of pollution is reduced. The novel plastic infusion bag has the advantages of being capable of being emptied automatically without blood return, free of serious deformation and distortion, and capable of being placed in an upright mode when in use.
Owner:ANHUI DOUBLE CRANE PHARMA

Vehicle-mounted aerodynamic testing system for unmanned aerial vehicle

The invention relates to aerodynamic testing techniques for aircrafts, in particular to a vehicle-mounted aerodynamic testing system for an unmanned aerial vehicle. The vehicle-mounted aerodynamic testing system for the unmanned aerial vehicle comprises a vehicle bearing device, a supporting device and a data collecting device, wherein the vehicle bearing device is used for bearing the pretested unmanned aerial vehicle and driving the pretested unmanned aerial vehicle to conduct uniform linear motion in a predetermined direction; the supporting device is used for fixedly arranging the pretested unmanned aerial vehicle on the vehicle bearing device, and the supporting device has a folding state and an unfolding state; the supporting device is used for adjusting posture of the pretested unmanned aerial vehicle and testing lift force and resistance of the pretested unmanned aerial vehicle in the unfolding state; and the data collecting device is used for collecting the relative inflow velocity during conducting uniform linear motion and the lift force and the resistance of the pretested unmanned aerial vehicle. According to the vehicle-mounted aerodynamic testing system for the unmanned aerial vehicle, the pretested unmanned aerial vehicle can be conveniently installed by operating personnel, the angle of attack of the unmanned aerial vehicle to be tested can be precisely and continuously controlled, and experimental and testing efficiency is improved.
Owner:XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA

Bearing spiral combined sealing structure of high-speed roller bit

ActiveCN105134083AAvoid wear and tearIncrease outside pressureConstructionsRubber ringBearing wear
The invention relates to a bearing spiral combined sealing structure of a high-speed roller bit. The bearing spiral combined sealing structure comprises a roller cone, a bearing, a spiral seal ring and an O-shaped rubber ring. The spiral seal ring is installed in a spiral groove of a roller cone inner hole. When the bit rotates at a high speed, through the pumping effect of the spiral groove, a function of automatically draining sand is achieved. The pressure of the outer side of the O-shaped rubber ring is added, the pressure difference of the two sides of the O-shaped rubber ring is reduced, and the sealing effect of the O-shaped rubber ring is improved. The O-shaped rubber ring is located above the spiral seal ring and installed in a bearing groove with a certain interference. When the bit rotates at a high speed, the auxiliary two-stage sealing is achieved, and the bit can also achieve the effective sealing effect when stopping rotating. The bearing spiral combined sealing structure has good sand draining performance, the abrasion to the bearing can be effectively reduced, the sealing requirements under different working conditions can be met, the sealing reliability and stability are greatly improved, the sealing service life is prolonged. Other supporting elements are not needed for the sealing, and precious time is saved for the roller bit.
Owner:SOUTHWEST PETROLEUM UNIV

Circular pipe communicated, spliced, edge-pinched, and welded pressure-bearing heat exchanger, and manufacturing process thereof

The invention discloses a circular pipe communicated, spliced, edge-pinched, and welded pressure-bearing heat exchanger, and a manufacturing process thereof. The heat exchanger comprises two headers, wherein a tap water communication pipe is fixedly connected between the two headers; a hot air heat supply pipe passes through the tap water communication pipe; each header is formed by welding two arc plates; the plate edges of the arc plates are flanged outwards; the plate edges of the two arc plates are aligned with each other and are subjected to edge-pinching and self-fluxing welding to form a circular tubular header cylinder body; head blocking plates of the headers are flanged outwards and are embedded at two ports of the circular tubular headers; and the two edges are aligned with a pipe wall surface, are spliced and are subjected to the edge-pinching and the self-fluxing welding to form the headers. An installation hole is punched on each arc plate; the installation hole is stretched inward an arc to form an edge; the aperture and the height of are stretched according to the arc plates; and the end surfaces of the two ends of the tap water communication pipe are subjected to R-angle cutting according to the stretching hole diameter and the stretching height of the arc plates, and then the tap water communication pipe is inserted into the installation holes stretched from the arc plates, are matched with each other, are spliced and are subjected to edge-pinching and self-fluxing welding connection. In the heat exchanger, welding seams are spliced, the edge-pinching welding is easy to realize, and water leakage is avoided; and the heat exchanger is good in pressure-bearing performance, and low in maintenance cost.
Owner:张伟

Desktop type four-axis linkage fiber winding machine for molding grid structure

ActiveCN109109338AReduces fiber buildup and overhead defectsImprove performanceWinding machineYarn
The invention provides a desktop type four-axis linkage fiber winding machine for molding a grid structure and relates to one fiber winding machine, aiming at solving the problems that an existing winding machine cannot meet winding of the grid structure and winding molding of a mini-type spacecraft component. The desktop type four-axis linkage fiber winding machine comprises a machine tool platform, a movable frame body, a frame body movement driving mechanism, a fiber rewinding mechanism, a yarn picking mechanism, a glue immersing mechanism, a retractable arm assembly, a silk nozzle assembly, a main shaft rotary part and an annular rib winding assembly; the frame body movement driving mechanism, the main shaft rotary part and the annular rib winding assembly are mounted on the machine tool platform; the main shaft rotary part is located between the frame body movement driving mechanism and the annular rib winding assembly; the movable frame body is mounted on the frame body movementdriving mechanism; the fiber rewinding mechanism, the yarn picking mechanism, the glue immersing mechanism, the retractable arm assembly and the silk nozzle assembly are mounted on the movable frame body. The desktop type four-axis linkage fiber winding machine belongs to the field of molding of composite materials.
Owner:HARBIN INST OF TECH

Integrated loop heat pipe cooling device with boiling pool

ActiveCN105890415AContinuous and efficient heat dissipationCompact structureIndirect heat exchangersEngineeringLoop heat pipe
An integrated loop heat pipe cooling device with a boiling pool comprises an evaporator, the boiling pool and a condenser, wherein the evaporator comprises a compensating chamber; a capillary core for providing power is arranged below the compensating chamber; a steam channel is formed below the capillary core; an air collecting groove which communicates with the steam channel is formed between the compensating chamber and the boiling pool; a connecting hole which communicates with the air collecting groove is formed in a side wall of the boiling pool; steam generated from the bottom of the compensating chamber enters the air collecting groove and enters the boiling pool through the connecting hole; the compensating chamber communicates with an outlet of the condenser; and the boiling pool communicates with an inlet of the condenser. The evaporator for proving power and the boiling pool as a main cooling component are integrally designed, the integral size is small, the structure is compact, the integrated loop heat pipe cooling device is suitable for cooling electronic devices with small space, by the compact design of the evaporator and the boiling pool, a system only needs a heat source which is a cooled device, an additional heat source or a power device is not required, energy is saved, and the electronic devices can be continuously and efficiently cooled.
Owner:XI AN JIAOTONG UNIV

Automatic front feeding device

The invention relates to an automatic front feeding device. The automatic front feeding device comprises a fixed base installed on a moving table of a machine tool, wherein a supporting base is installed in the fixed base, a front leaked-material baffle and a rear leaked-material baffle are arranged on the front side and the rear side of the upper surface of the fixed base respectively, a front blocking strip and a rear blocking strip are installed between the front leaked-material baffle and the rear leaked-material baffle, a workpiece is loaded by the front blocking strip and the rear blocking strip, inverted-V-shaped grooves are formed in the bottom of the front blocking strip and the bottom of the rear blocking strip respectively, a first workpiece position is formed above the supporting base, one workpiece can pass through the first workpiece position, fixing plates are installed on the two sides of the fixed base respectively, an air cylinder base is arranged on the inner sides of the fixing plates, an air cylinder is installed in the middle of the air cylinder base, and a push rod of the air cylinder exactly faces the first workpiece position. According to the automatic front feeding device, full-automatic feeding and clamping of short materials and granular materials are achieved, dozens of workpieces can be loaded on the automatic front feeding device at one time, a plurality of machine tools can be operated by one person at the same time, rapid line connection machining is facilitated, and machining efficiency is greatly improved; meanwhile, the automatic front feeding device is small in occupied space, simple in structure, convenient to control, stable in operation and wide in range of application.
Owner:GUANGZHOU LONGBANG AUTOMATIC CONTROL EQUIP

Pneumatic multipurpose land-based catapult launch training device of shipboard aircraft on aircraft carrier

InactiveCN102910296AAdaptableStrong combat readinessLaunching/towing gearLand basedCatapult
The invention provides a pneumatic multipurpose land-based catapult launch training device of a shipboard aircraft on an aircraft carrier. The device comprises an engine base, hydraulic lifting devices, a cantilever runway, a shipboard aircraft and a catapult, wherein the engine base is arranged in a trough; one end of the cantilever runway is connected with the engine base by a hinge axis; the catapult is arranged in the cantilever runway; landing gears of the shipboard aircraft are connected with the upper surface of a sliding plate; the bottom of the sliding plate is connected with the catapult; and the upper ends of the hydraulic lifting devices are hinged with the bottom of the cantilever runway and the lower ends of the hydraulic lifting devices are connected with the bottom of the trough. The device has the following advantages that 1) the device has a simple structure, high degree of automation and long service life, is convenient to operate and easy to maintain and is safe and reliable; and 2) the land-based take-off runways are unnecessary to be built; the device has strong adaptability; and without occupying the main take-off runways of the existing airports, the device can be installed and used on any airport and has good adaptability and a strong war preparedness function.
Owner:朱惠芬

Intelligent elevator capable of driving plurality of lift cars to move circularly by utilizing gears

The invention provides an intelligent elevator capable of driving a plurality of lift cars to move circularly by utilizing gears. The intelligent elevator comprises lift cars, guide rails, a shaft, a synchronous motor set, a gear set, a lift car driving mechanism, a lift car reversing driving mechanism and a lift car storage region, wherein a supporting framework is arranged in the middle of the shaft and is used for bearing the synchronous motor set, the gear set, the lift car driving mechanism and the like; the inner part of the shaft is divided into a lift car ascending region, a lift car descending region, a top reversing region and a bottom reversing region; the intelligent elevator is characterized in that the lift cars further comprises a reversing lift car; a hook and an unhooking mechanism are arranged between the lift cars and the lift car driving mechanism; and the intelligent elevator is further provided with a central controller, and a first position sensor, a second position sensor, a lift car door control device, a delaying relay and the like. According to the intelligent elevator provided by the invention, a product combines software and hardware and the operation time and retention time of the elevator can be strictly controlled so that the utilization rate of the elevator is greatly improved.
Owner:张博飞
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